Merge branch 'release/1.4.0'

.gitignore

@@ -33,3 +33,4 @@ build/
 *.iml
 
 art/
+*.actual.png

CHANGELOG.md

@@ -1,5 +1,18 @@
 # Changelog
 
+### 1.4.0 (April 4, 2016)
+
+* Ability to import data from third-party apps
+* Ability to save and restore full database backup
+* Show more information on streak chart
+* Simplify interface for creating habits
+* Add link to Frequently Asked Questions (FAQ)
+* Reduce app loading time and lag on widgets
+* Generate bug reports on crash and from settings screen
+* Disable vibration according to phone settings
+* Add Czech translation
+* Fix wrong month names for some languages
+
 ### 1.3.3 (March 20, 2016)
 
 * Add Spanish and Korean translations

NOTICE.md

@@ -89,3 +89,22 @@ Material design icons are the official icon set from Google that are designed
 under the material design guidelines. Available under the Creative Common
 Attribution 4.0 International License (CC-BY 4.0).
 
+### Android Flow Layout
+
+<https://github.com/ApmeM/android-flowlayout>
+
+Extended linear layout that wrap its content when there is no place in the current line.
+
+    Copyright 2011, Artem Votincev (apmem.org)
+
+    Licensed under the Apache License, Version 2.0 (the "License"); you may not
+    use this file except in compliance with the License. You may obtain a copy
+    of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+    License for the specific language governing permissions and limitations
+    under the License.

README.md

@@ -1,12 +1,20 @@
 # Loop Habit Tracker
+<a href="https://circleci.com/gh/iSoron/uhabits/tree/dev">
+  <img src="https://img.shields.io/circleci/project/iSoron/uhabits/dev.svg">
+</a>
+<a href="https://codecov.io/github/iSoron/uhabits?branch=dev">
+  <img src="https://img.shields.io/codecov/c/github/iSoron/uhabits.svg" alt="Coverage via Codecov" />
+</a>
 
 Loop is a simple Android app that helps you create and maintain good habits,
 allowing you to achieve your long-term goals. Detailed graphs and statistics
 show you how your habits improved over time. It is completely ad-free and open
 source.
 
+<p align="center">
 <a href="https://play.google.com/store/apps/details?id=org.isoron.uhabits&utm_source=global_co&utm_medium=prtnr&utm_content=Mar2515&utm_campaign=PartBadge&pcampaignid=MKT-AC-global-none-all-co-pr-py-PartBadges-Oct1515-1"><img alt="Get it on Google Play" src="https://play.google.com/intl/en_us/badges/images/apps/en-play-badge-border.png" height="75px"/></a>
 <a href="http://f-droid.org/app/org.isoron.uhabits"><img alt="Git if on F-Droid" src="http://i.imgur.com/baSPE7X.png" height="75px"/></a>
+</p>
 
 ## Features
 
@@ -65,9 +73,14 @@ contribute, even if you are not a software developer.
   to improve it. You can either use the link inside the app, or open an issue
   at GitHub.
 
+* **Spread the word.** If you like the app, share it with your family, friends
+  and colleagues. You can also rate and review the app on Google Play Store, to help
+  other users find it more easily.
+
 * **Translate the app into your own language.** If you are not a native English
   speaker, and would like to see the app translated into your own language,
-  please join our [open translation project at POEditor][poedit].
+  please join our [open translation project at POEditor][poedit]. If the translation
+  is already completed, you are also very welcome to join and proofread it.
 
 * **Write some code.** If you are an Android developer, you are very welcome to
   contribute with code. Please, see the [developer guidelines][dev-guide] for more details.

app/build.gradle

@@ -2,14 +2,18 @@ apply plugin: 'com.android.application'
 
 android {
     compileSdkVersion 23
-    buildToolsVersion "21.1.2"
+    buildToolsVersion "23.0.1"
 
     defaultConfig {
         applicationId "org.isoron.uhabits"
         minSdkVersion 15
         targetSdkVersion 23
 
+        buildConfigField "Integer", "databaseVersion", "13"
+        buildConfigField "String", "databaseFilename", "\"uhabits.db\""
+
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+        //testInstrumentationRunnerArgument "size", "small"
     }
 
     buildTypes {
@@ -30,6 +34,8 @@ android {
 dependencies {
     compile 'com.android.support:support-v4:23.1.1'
     compile 'com.github.paolorotolo:appintro:3.4.0'
+    compile 'org.apmem.tools:layouts:1.10@aar'
+    compile 'com.opencsv:opencsv:3.7'
     compile project(':libs:drag-sort-listview:library')
     compile files('libs/ActiveAndroid.jar')
 
@@ -40,3 +46,13 @@ dependencies {
     androidTestCompile 'com.android.support.test.espresso:espresso-intents:2.2.1'
 }
 
+
+task grantAnimationPermission(type: Exec, dependsOn: 'installDebug') {
+    commandLine "adb shell pm grant org.isoron.uhabits android.permission.SET_ANIMATION_SCALE".split(' ')
+}
+
+tasks.whenTaskAdded { task ->
+    if (task.name.startsWith('connected')) {
+        task.dependsOn grantAnimationPermission
+    }
+}

app/src/androidTest/assets/habitbull.csv

@@ -0,0 +1,19 @@
+HabitName,HabitDescription,HabitCategory,CalendarDate,Value,CommentText
+Breed dragons,with love and fire,Diet & Food,2016-03-18,1,
+Breed dragons,with love and fire,Diet & Food,2016-03-19,1,
+Breed dragons,with love and fire,Diet & Food,2016-03-21,1,
+Reduce sleep,only 2 hours per day,Time Management,2016-03-15,1,
+Reduce sleep,only 2 hours per day,Time Management,2016-03-16,1,
+Reduce sleep,only 2 hours per day,Time Management,2016-03-17,1,
+Reduce sleep,only 2 hours per day,Time Management,2016-03-21,1,
+No-arms pushup,Become like water my friend!,Fitness,2016-03-15,1,
+No-arms pushup,Become like water my friend!,Fitness,2016-03-16,1,
+No-arms pushup,Become like water my friend!,Fitness,2016-03-18,1,
+No-arms pushup,Become like water my friend!,Fitness,2016-03-21,1,
+No-arms pushup,Become like water my friend!,Fitness,2016-03-15,1,
+No-arms pushup,Become like water my friend!,Fitness,2016-03-16,1,
+No-arms pushup,Become like water my friend!,Fitness,2016-03-18,1,
+No-arms pushup,Become like water my friend!,Fitness,2016-03-21,1,
+Grow spiritually,"transcend ego, practice compassion, smile and breath",Meditation,2016-03-15,1,
+Grow spiritually,"transcend ego, practice compassion, smile and breath",Meditation,2016-03-17,1,
+Grow spiritually,"transcend ego, practice compassion, smile and breath",Meditation,2016-03-21,1,

app/src/androidTest/assets/pull_failed

@@ -0,0 +1,5 @@
+#!/bin/bash
+P=/sdcard/Android/data/org.isoron.uhabits/cache/Failed/
+
+adb pull $P Failed/
+adb shell rm -r $P

app/src/androidTest/java/org/isoron/uhabits/BaseTest.java

@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits;
+
+import android.content.Context;
+import android.os.Build;
+import android.os.Looper;
+import android.support.test.InstrumentationRegistry;
+
+import org.isoron.uhabits.helpers.DateHelper;
+import org.isoron.uhabits.tasks.BaseTask;
+import org.junit.Before;
+
+import java.util.concurrent.TimeoutException;
+
+public class BaseTest
+{
+    protected Context testContext;
+    protected Context targetContext;
+    private static boolean isLooperPrepared;
+
+    public static final long FIXED_LOCAL_TIME = 1422172800000L; // 8:00am, January 25th, 2015 (UTC)
+
+    @Before
+    public void setup()
+    {
+        if(!isLooperPrepared)
+        {
+            Looper.prepare();
+            isLooperPrepared = true;
+        }
+
+        targetContext = InstrumentationRegistry.getTargetContext();
+        testContext = InstrumentationRegistry.getContext();
+
+        DateHelper.setFixedLocalTime(FIXED_LOCAL_TIME);
+    }
+
+    protected void waitForAsyncTasks() throws InterruptedException, TimeoutException
+    {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN)
+        {
+            Thread.sleep(1000);
+            return;
+        }
+
+        BaseTask.waitForTasks(10000);
+    }
+}

app/src/androidTest/java/org/isoron/uhabits/MainTest.java

@@ -1,200 +0,0 @@
-package org.isoron.uhabits;
-
-import android.content.Context;
-import android.support.test.InstrumentationRegistry;
-import android.support.test.espresso.NoMatchingViewException;
-import android.support.test.espresso.intent.rule.IntentsTestRule;
-import android.support.test.runner.AndroidJUnit4;
-import android.test.suitebuilder.annotation.LargeTest;
-
-import org.isoron.uhabits.models.Habit;
-import org.junit.Before;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Random;
-
-import static android.support.test.espresso.Espresso.onData;
-import static android.support.test.espresso.Espresso.onView;
-import static android.support.test.espresso.Espresso.openActionBarOverflowOrOptionsMenu;
-import static android.support.test.espresso.Espresso.pressBack;
-import static android.support.test.espresso.action.ViewActions.click;
-import static android.support.test.espresso.action.ViewActions.longClick;
-import static android.support.test.espresso.action.ViewActions.scrollTo;
-import static android.support.test.espresso.action.ViewActions.swipeLeft;
-import static android.support.test.espresso.action.ViewActions.swipeRight;
-import static android.support.test.espresso.action.ViewActions.swipeUp;
-import static android.support.test.espresso.assertion.ViewAssertions.matches;
-import static android.support.test.espresso.matcher.ViewMatchers.isDisplayed;
-import static android.support.test.espresso.matcher.ViewMatchers.isRoot;
-import static android.support.test.espresso.matcher.ViewMatchers.withClassName;
-import static android.support.test.espresso.matcher.ViewMatchers.withId;
-import static android.support.test.espresso.matcher.ViewMatchers.withText;
-import static org.hamcrest.Matchers.allOf;
-import static org.hamcrest.Matchers.endsWith;
-import static org.hamcrest.Matchers.instanceOf;
-import static org.hamcrest.Matchers.is;
-import static org.isoron.uhabits.HabitMatchers.withName;
-import static org.isoron.uhabits.HabitViewActions.clickAtRandomLocations;
-import static org.isoron.uhabits.HabitViewActions.toggleAllCheckmarks;
-import static org.isoron.uhabits.MainActivityActions.addHabit;
-import static org.isoron.uhabits.MainActivityActions.assertHabitExists;
-import static org.isoron.uhabits.MainActivityActions.assertHabitsDontExist;
-import static org.isoron.uhabits.MainActivityActions.assertHabitsExist;
-import static org.isoron.uhabits.MainActivityActions.clickActionModeMenuItem;
-import static org.isoron.uhabits.MainActivityActions.deleteHabit;
-import static org.isoron.uhabits.MainActivityActions.deleteHabits;
-import static org.isoron.uhabits.MainActivityActions.selectHabit;
-import static org.isoron.uhabits.MainActivityActions.selectHabits;
-import static org.isoron.uhabits.MainActivityActions.typeHabitData;
-import static org.isoron.uhabits.ShowHabitActivityActions.openHistoryEditor;
-
-@RunWith(AndroidJUnit4.class)
-@LargeTest
-public class MainTest
-{
-    @Rule
-    public IntentsTestRule<MainActivity> activityRule = new IntentsTestRule<>(
-            MainActivity.class);
-
-    @Before
-    public void skipTutorial()
-    {
-        try
-        {
-            for (int i = 0; i < 10; i++)
-                onView(allOf(withClassName(endsWith("AppCompatImageButton")),
-                        isDisplayed())).perform(click());
-        }
-        catch (NoMatchingViewException e)
-        {
-            // ignored
-        }
-    }
-
-    @Test
-    public void testArchiveHabits()
-    {
-        List<String> names = new LinkedList<>();
-        Context context = InstrumentationRegistry.getTargetContext();
-
-        for(int i = 0; i < 3; i++)
-            names.add(addHabit());
-
-        selectHabits(names);
-
-        clickActionModeMenuItem(R.string.archive);
-        assertHabitsDontExist(names);
-
-        openActionBarOverflowOrOptionsMenu(context);
-        onView(withText(R.string.show_archived))
-                .perform(click());
-
-        assertHabitsExist(names);
-        selectHabits(names);
-        clickActionModeMenuItem(R.string.unarchive);
-
-        openActionBarOverflowOrOptionsMenu(context);
-        onView(withText(R.string.show_archived))
-                .perform(click());
-
-        assertHabitsExist(names);
-        deleteHabits(names);
-    }
-
-    @Test
-    public void testAddInvalidHabit()
-    {
-        onView(withId(R.id.action_add))
-                .perform(click());
-
-        typeHabitData("", "", "15", "7");
-
-        onView(withId(R.id.buttonSave)).perform(click());
-        onView(withId(R.id.input_name)).check(matches(isDisplayed()));
-    }
-
-    @Test
-    public void testAddHabitAndViewStats()
-    {
-        String name = addHabit(true);
-
-        onData(allOf(is(instanceOf(Habit.class)), withName(name)))
-                .onChildView(withId(R.id.llButtons))
-                .perform(toggleAllCheckmarks());
-
-        onData(allOf(is(instanceOf(Habit.class)), withName(name)))
-                .onChildView(withId(R.id.label))
-                .perform(click());
-
-        onView(withId(R.id.scoreView))
-                .perform(swipeRight());
-
-        onView(withId(R.id.punchcardView))
-                .perform(scrollTo());
-    }
-
-    @Test
-    public void testEditHabit()
-    {
-        String name = addHabit();
-
-        onData(allOf(is(instanceOf(Habit.class)), withName(name)))
-                .onChildView(withId(R.id.label))
-                .perform(longClick());
-
-        clickActionModeMenuItem(R.string.edit);
-
-        String modifiedName = "Modified " + new Random().nextInt(10000);
-        typeHabitData(modifiedName, "", "1", "1");
-
-        onView(withId(R.id.buttonSave))
-                .perform(click());
-
-        assertHabitExists(modifiedName);
-
-        selectHabit(modifiedName);
-        clickActionModeMenuItem(R.string.color_picker_default_title);
-        pressBack();
-
-        deleteHabit(modifiedName);
-    }
-
-    @Test
-    public void testEditHistory()
-    {
-        String name = addHabit();
-
-        onData(allOf(is(instanceOf(Habit.class)), withName(name)))
-                .onChildView(withId(R.id.label))
-                .perform(click());
-
-        openHistoryEditor();
-        onView(withClassName(endsWith("HabitHistoryView")))
-                .perform(clickAtRandomLocations(20));
-
-        pressBack();
-        onView(withId(R.id.historyView))
-                .perform(scrollTo(), swipeRight(), swipeLeft());
-    }
-
-    @Test
-    public void testSettings()
-    {
-        Context context = InstrumentationRegistry.getContext();
-        openActionBarOverflowOrOptionsMenu(context);
-        onView(withText(R.string.settings)).perform(click());
-    }
-
-    @Test
-    public void testAbout()
-    {
-        Context context = InstrumentationRegistry.getContext();
-        openActionBarOverflowOrOptionsMenu(context);
-        onView(withText(R.string.about)).perform(click());
-        onView(isRoot()).perform(swipeUp());
-    }
-}

app/src/androidTest/java/org/isoron/uhabits/ui/HabitMatchers.java

@@ -17,12 +17,14 @@
  * with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-package org.isoron.uhabits;
+package org.isoron.uhabits.ui;
 
+import android.preference.Preference;
 import android.view.View;
 import android.widget.Adapter;
 import android.widget.AdapterView;
 
+import org.hamcrest.BaseMatcher;
 import org.hamcrest.Description;
 import org.hamcrest.Matcher;
 import org.hamcrest.TypeSafeMatcher;
@@ -76,4 +78,23 @@ public class HabitMatchers
             }
         };
     }
+
+    public static Matcher<?> isPreferenceWithText(final String text)
+    {
+        return (Matcher<?>) new BaseMatcher()
+        {
+            @Override
+            public boolean matches(Object o)
+            {
+                if(!(o instanceof Preference)) return false;
+                return o.toString().contains(text);
+            }
+
+            @Override
+            public void describeTo(Description description)
+            {
+                description.appendText(String.format("is preference with text '%s'", text));
+            }
+        };
+    }
 }

app/src/androidTest/java/org/isoron/uhabits/ui/HabitViewActions.java

@@ -17,7 +17,7 @@
  * with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-package org.isoron.uhabits;
+package org.isoron.uhabits.ui;
 
 import android.support.test.espresso.UiController;
 import android.support.test.espresso.ViewAction;
@@ -32,6 +32,7 @@ import android.widget.LinearLayout;
 import android.widget.TextView;
 
 import org.hamcrest.Matcher;
+import org.isoron.uhabits.R;
 
 import java.security.InvalidParameterException;
 import java.util.Random;

app/src/androidTest/java/org/isoron/uhabits/ui/MainActivityActions.java

@@ -17,11 +17,11 @@
  * with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-package org.isoron.uhabits;
+package org.isoron.uhabits.ui;
 
-import android.content.Context;
-import android.support.test.InstrumentationRegistry;
+import android.support.test.espresso.NoMatchingViewException;
 
+import org.isoron.uhabits.R;
 import org.isoron.uhabits.models.Habit;
 
 import java.util.Collections;
@@ -37,16 +37,20 @@ import static android.support.test.espresso.action.ViewActions.click;
 import static android.support.test.espresso.action.ViewActions.longClick;
 import static android.support.test.espresso.action.ViewActions.replaceText;
 import static android.support.test.espresso.assertion.ViewAssertions.matches;
+import static android.support.test.espresso.matcher.RootMatchers.isPlatformPopup;
+import static android.support.test.espresso.matcher.ViewMatchers.Visibility.VISIBLE;
 import static android.support.test.espresso.matcher.ViewMatchers.isDisplayed;
 import static android.support.test.espresso.matcher.ViewMatchers.withContentDescription;
+import static android.support.test.espresso.matcher.ViewMatchers.withEffectiveVisibility;
 import static android.support.test.espresso.matcher.ViewMatchers.withId;
 import static android.support.test.espresso.matcher.ViewMatchers.withText;
 import static org.hamcrest.Matchers.allOf;
 import static org.hamcrest.Matchers.instanceOf;
 import static org.hamcrest.Matchers.is;
 import static org.hamcrest.Matchers.not;
-import static org.isoron.uhabits.HabitMatchers.containsHabit;
-import static org.isoron.uhabits.HabitMatchers.withName;
+import static org.hamcrest.Matchers.startsWith;
+import static org.isoron.uhabits.ui.HabitMatchers.containsHabit;
+import static org.isoron.uhabits.ui.HabitMatchers.withName;
 
 public class MainActivityActions
 {
@@ -97,6 +101,20 @@ public class MainActivityActions
                 .perform(replaceText(name));
         onView(withId(R.id.input_description))
                 .perform(replaceText(description));
+
+        try
+        {
+            onView(allOf(withId(R.id.sFrequency), withEffectiveVisibility(VISIBLE)))
+                    .perform(click());
+            onData(allOf(instanceOf(String.class), startsWith("Custom")))
+                    .inRoot(isPlatformPopup())
+                    .perform(click());
+        }
+        catch(NoMatchingViewException e)
+        {
+            // ignored
+        }
+
         onView(withId(R.id.input_freq_num))
                 .perform(replaceText(num));
         onView(withId(R.id.input_freq_den))

app/src/androidTest/java/org/isoron/uhabits/ui/MainTest.java

@@ -0,0 +1,359 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.ui;
+
+import android.app.Activity;
+import android.app.Instrumentation;
+import android.content.Context;
+import android.content.Intent;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.espresso.NoMatchingViewException;
+import android.support.test.espresso.intent.rule.IntentsTestRule;
+import android.support.test.runner.AndroidJUnit4;
+import android.test.suitebuilder.annotation.LargeTest;
+
+import org.isoron.uhabits.MainActivity;
+import org.isoron.uhabits.R;
+import org.isoron.uhabits.helpers.DateHelper;
+import org.isoron.uhabits.models.Habit;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Random;
+
+import static android.support.test.espresso.Espresso.onData;
+import static android.support.test.espresso.Espresso.onView;
+import static android.support.test.espresso.Espresso.openActionBarOverflowOrOptionsMenu;
+import static android.support.test.espresso.Espresso.pressBack;
+import static android.support.test.espresso.action.ViewActions.click;
+import static android.support.test.espresso.action.ViewActions.longClick;
+import static android.support.test.espresso.action.ViewActions.scrollTo;
+import static android.support.test.espresso.action.ViewActions.swipeLeft;
+import static android.support.test.espresso.action.ViewActions.swipeRight;
+import static android.support.test.espresso.action.ViewActions.swipeUp;
+import static android.support.test.espresso.assertion.ViewAssertions.matches;
+import static android.support.test.espresso.intent.Intents.intended;
+import static android.support.test.espresso.intent.Intents.intending;
+import static android.support.test.espresso.intent.matcher.IntentMatchers.hasAction;
+import static android.support.test.espresso.matcher.ViewMatchers.isDisplayed;
+import static android.support.test.espresso.matcher.ViewMatchers.isRoot;
+import static android.support.test.espresso.matcher.ViewMatchers.withClassName;
+import static android.support.test.espresso.matcher.ViewMatchers.withId;
+import static android.support.test.espresso.matcher.ViewMatchers.withText;
+import static org.hamcrest.Matchers.allOf;
+import static org.hamcrest.Matchers.containsString;
+import static org.hamcrest.Matchers.endsWith;
+import static org.hamcrest.Matchers.equalTo;
+import static org.hamcrest.Matchers.instanceOf;
+import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.startsWith;
+import static org.isoron.uhabits.ui.HabitMatchers.isPreferenceWithText;
+import static org.isoron.uhabits.ui.HabitMatchers.withName;
+import static org.isoron.uhabits.ui.HabitViewActions.clickAtRandomLocations;
+import static org.isoron.uhabits.ui.HabitViewActions.toggleAllCheckmarks;
+import static org.isoron.uhabits.ui.MainActivityActions.addHabit;
+import static org.isoron.uhabits.ui.MainActivityActions.assertHabitExists;
+import static org.isoron.uhabits.ui.MainActivityActions.assertHabitsDontExist;
+import static org.isoron.uhabits.ui.MainActivityActions.assertHabitsExist;
+import static org.isoron.uhabits.ui.MainActivityActions.clickActionModeMenuItem;
+import static org.isoron.uhabits.ui.MainActivityActions.deleteHabit;
+import static org.isoron.uhabits.ui.MainActivityActions.deleteHabits;
+import static org.isoron.uhabits.ui.MainActivityActions.selectHabit;
+import static org.isoron.uhabits.ui.MainActivityActions.selectHabits;
+import static org.isoron.uhabits.ui.MainActivityActions.typeHabitData;
+import static org.isoron.uhabits.ui.ShowHabitActivityActions.openHistoryEditor;
+
+@RunWith(AndroidJUnit4.class)
+@LargeTest
+public class MainTest
+{
+    private SystemHelper sys;
+
+    @Rule
+    public IntentsTestRule<MainActivity> activityRule = new IntentsTestRule<>(
+            MainActivity.class);
+
+    private Context targetContext;
+
+    @Before
+    public void setup()
+    {
+        Context context = InstrumentationRegistry.getInstrumentation().getContext();
+        sys = new SystemHelper(context);
+        sys.disableAllAnimations();
+        sys.acquireWakeLock();
+        sys.unlockScreen();
+
+        targetContext = InstrumentationRegistry.getTargetContext();
+
+        Instrumentation.ActivityResult okResult = new Instrumentation.ActivityResult(
+                Activity.RESULT_OK, new Intent());
+
+        intending(hasAction(equalTo(Intent.ACTION_SEND))).respondWith(okResult);
+        intending(hasAction(equalTo(Intent.ACTION_SENDTO))).respondWith(okResult);
+        intending(hasAction(equalTo(Intent.ACTION_VIEW))).respondWith(okResult);
+
+        skipTutorial();
+    }
+
+    @After
+    public void tearDown()
+    {
+        sys.releaseWakeLock();
+    }
+
+    public void skipTutorial()
+    {
+        try
+        {
+            for (int i = 0; i < 10; i++)
+                onView(allOf(withClassName(endsWith("AppCompatImageButton")),
+                        isDisplayed())).perform(click());
+        }
+        catch (NoMatchingViewException e)
+        {
+            // ignored
+        }
+    }
+
+    /**
+     * User opens the app, creates some habits, selects them, archives them, select 'show archived'
+     * on the menu, selects the previously archived habits and then deletes them.
+     */
+    @Test
+    public void testArchiveHabits()
+    {
+        List<String> names = new LinkedList<>();
+
+        for(int i = 0; i < 3; i++)
+            names.add(addHabit());
+
+        selectHabits(names);
+
+        clickActionModeMenuItem(R.string.archive);
+        assertHabitsDontExist(names);
+
+        openActionBarOverflowOrOptionsMenu(targetContext);
+        onView(withText(R.string.show_archived))
+                .perform(click());
+
+        assertHabitsExist(names);
+        selectHabits(names);
+        clickActionModeMenuItem(R.string.unarchive);
+
+        openActionBarOverflowOrOptionsMenu(targetContext);
+        onView(withText(R.string.show_archived))
+                .perform(click());
+
+        assertHabitsExist(names);
+        deleteHabits(names);
+    }
+
+    /**
+     * User opens the app, clicks the add button, types some bogus information, tries to save,
+     * dialog displays an error.
+     */
+    @Test
+    public void testAddInvalidHabit()
+    {
+        onView(withId(R.id.action_add))
+                .perform(click());
+
+        typeHabitData("", "", "15", "7");
+
+        onView(withId(R.id.buttonSave)).perform(click());
+        onView(withId(R.id.input_name)).check(matches(isDisplayed()));
+    }
+
+    /**
+     * User creates a habit, toggles a bunch of checkmarks, clicks the habit to open the statistics
+     * screen, scrolls down to some views, then scrolls the views backwards and forwards in time.
+     */
+    @Test
+    public void testAddHabitAndViewStats() throws InterruptedException
+    {
+        String name = addHabit(true);
+
+        onData(allOf(is(instanceOf(Habit.class)), withName(name)))
+                .onChildView(withId(R.id.llButtons))
+                .perform(toggleAllCheckmarks());
+
+        Thread.sleep(1200);
+
+        onData(allOf(is(instanceOf(Habit.class)), withName(name)))
+                .onChildView(withId(R.id.label))
+                .perform(click());
+
+        onView(withId(R.id.scoreView))
+                .perform(scrollTo(), swipeRight());
+
+        onView(withId(R.id.punchcardView))
+                .perform(scrollTo(), swipeRight());
+    }
+
+    /**
+     * User creates a habit, selects the habit, clicks edit button, changes some information about
+     * the habit, click save button, sees changes on the main window, selects habit again,
+     * changes color, then deletes the habit.
+     */
+    @Test
+    public void testEditHabit()
+    {
+        String name = addHabit();
+
+        onData(allOf(is(instanceOf(Habit.class)), withName(name)))
+                .onChildView(withId(R.id.label))
+                .perform(longClick());
+
+        clickActionModeMenuItem(R.string.edit);
+
+        String modifiedName = "Modified " + new Random().nextInt(10000);
+        typeHabitData(modifiedName, "", "1", "1");
+
+        onView(withId(R.id.buttonSave))
+                .perform(click());
+
+        assertHabitExists(modifiedName);
+
+        selectHabit(modifiedName);
+        clickActionModeMenuItem(R.string.color_picker_default_title);
+        pressBack();
+
+        deleteHabit(modifiedName);
+    }
+
+    /**
+     * User creates a habit, opens statistics page, clicks button to edit history, adds some
+     * checkmarks, closes dialog, sees the modified history calendar.
+     */
+    @Test
+    public void testEditHistory()
+    {
+        String name = addHabit();
+
+        onData(allOf(is(instanceOf(Habit.class)), withName(name)))
+                .onChildView(withId(R.id.label))
+                .perform(click());
+
+        openHistoryEditor();
+        onView(withClassName(endsWith("HabitHistoryView")))
+                .perform(clickAtRandomLocations(20));
+
+        pressBack();
+        onView(withId(R.id.historyView))
+                .perform(scrollTo(), swipeRight(), swipeLeft());
+    }
+
+    /**
+     * User opens menu, clicks settings, sees settings screen.
+     */
+    @Test
+    public void testSettings()
+    {
+        openActionBarOverflowOrOptionsMenu(targetContext);
+        onView(withText(R.string.settings)).perform(click());
+    }
+
+    /**
+     * User opens menu, clicks about, sees about screen.
+     */
+    @Test
+    public void testAbout()
+    {
+        openActionBarOverflowOrOptionsMenu(targetContext);
+        onView(withText(R.string.about)).perform(click());
+        onView(isRoot()).perform(swipeUp());
+    }
+
+    /**
+     * User opens menu, clicks Help, sees website.
+     */
+    @Test
+    public void testHelp()
+    {
+        openActionBarOverflowOrOptionsMenu(targetContext);
+        onView(withText(R.string.help)).perform(click());
+        intended(hasAction(Intent.ACTION_VIEW));
+    }
+
+    /**
+     * User creates a habit, exports full backup, deletes the habit, restores backup, sees that the
+     * previously created habit has appeared back.
+     */
+    @Test
+    public void testExportImportDB()
+    {
+        String name = addHabit();
+
+        openActionBarOverflowOrOptionsMenu(targetContext);
+        onView(withText(R.string.settings)).perform(click());
+
+        String date = DateHelper.getBackupDateFormat().format(DateHelper.getLocalTime());
+        date = date.substring(0, date.length() - 2);
+
+        onData(isPreferenceWithText("Export full backup")).perform(click());
+        intended(hasAction(Intent.ACTION_SEND));
+
+        deleteHabit(name);
+
+        openActionBarOverflowOrOptionsMenu(targetContext);
+        onView(withText(R.string.settings)).perform(click());
+        onData(isPreferenceWithText("Import data")).perform(click());
+
+        onData(allOf(is(instanceOf(String.class)), startsWith("Backups")))
+                .perform(click());
+
+        onData(allOf(is(instanceOf(String.class)), containsString(date)))
+                .perform(click());
+
+        selectHabit(name);
+    }
+
+    /**
+     * User creates a habit, opens settings, clicks export as CSV, is asked what activity should
+     * handle the file.
+     */
+    @Test
+    public void testExportCSV()
+    {
+        addHabit();
+        openActionBarOverflowOrOptionsMenu(targetContext);
+        onView(withText(R.string.settings)).perform(click());
+        onData(isPreferenceWithText("Export as CSV")).perform(click());
+        intended(hasAction(Intent.ACTION_SEND));
+    }
+
+    /**
+     * User opens the settings and generates a bug report.
+     */
+    @Test
+    public void testGenerateBugReport()
+    {
+        openActionBarOverflowOrOptionsMenu(targetContext);
+        onView(withText(R.string.settings)).perform(click());
+        onData(isPreferenceWithText("Generate bug report")).perform(click());
+        intended(hasAction(Intent.ACTION_SENDTO));
+    }
+}

app/src/androidTest/java/org/isoron/uhabits/ui/ShowHabitActivityActions.java

@@ -17,18 +17,21 @@
  * with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-package org.isoron.uhabits;
+package org.isoron.uhabits.ui;
+
+import android.support.test.espresso.matcher.ViewMatchers;
+
+import org.isoron.uhabits.R;
 
 import static android.support.test.espresso.Espresso.onView;
 import static android.support.test.espresso.action.ViewActions.click;
 import static android.support.test.espresso.action.ViewActions.scrollTo;
-import static android.support.test.espresso.matcher.ViewMatchers.withId;
 
 public class ShowHabitActivityActions
 {
     public static void openHistoryEditor()
     {
-        onView(withId(R.id.btEditHistory))
+        onView(ViewMatchers.withId(R.id.btEditHistory))
                 .perform(scrollTo(), click());
     }
 }

app/src/androidTest/java/org/isoron/uhabits/ui/SystemHelper.java

@@ -0,0 +1,105 @@
+package org.isoron.uhabits.ui;
+
+import android.app.KeyguardManager;
+import android.content.Context;
+import android.content.pm.PackageManager;
+import android.os.IBinder;
+import android.os.PowerManager;
+import android.support.test.runner.AndroidJUnitRunner;
+import android.util.Log;
+
+import java.lang.reflect.Method;
+
+public final class SystemHelper extends AndroidJUnitRunner
+{
+    private static final String ANIMATION_PERMISSION = "android.permission.SET_ANIMATION_SCALE";
+    private static final float DISABLED = 0.0f;
+    private static final float DEFAULT = 1.0f;
+
+    private final Context context;
+    private PowerManager.WakeLock wakeLock;
+
+    SystemHelper(Context context)
+    {
+        this.context = context;
+    }
+
+    void acquireWakeLock()
+    {
+        PowerManager power = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
+        wakeLock = power.newWakeLock(PowerManager.FULL_WAKE_LOCK |
+                PowerManager.ACQUIRE_CAUSES_WAKEUP |
+                PowerManager.ON_AFTER_RELEASE, getClass().getSimpleName());
+        wakeLock.acquire();
+    }
+
+    void releaseWakeLock()
+    {
+        if(wakeLock != null)
+            wakeLock.release();
+    }
+
+    void unlockScreen()
+    {
+        Log.i("SystemHelper", "Trying to unlock screen");
+        try
+        {
+            KeyguardManager mKeyGuardManager =
+                    (KeyguardManager) context.getSystemService(Context.KEYGUARD_SERVICE);
+            KeyguardManager.KeyguardLock mLock = mKeyGuardManager.newKeyguardLock("lock");
+            mLock.disableKeyguard();
+            Log.e("SystemHelper", "Successfully unlocked screen");
+        } catch (Exception e)
+        {
+            Log.e("SystemHelper", "Could not unlock screen");
+            e.printStackTrace();
+        }
+    }
+
+    void disableAllAnimations()
+    {
+        Log.i("SystemHelper", "Trying to disable animations");
+        int permStatus = context.checkCallingOrSelfPermission(ANIMATION_PERMISSION);
+        if (permStatus == PackageManager.PERMISSION_GRANTED) setSystemAnimationsScale(DISABLED);
+        else Log.e("SystemHelper", "Permission denied");
+
+    }
+
+    void enableAllAnimations()
+    {
+        int permStatus = context.checkCallingOrSelfPermission(ANIMATION_PERMISSION);
+        if (permStatus == PackageManager.PERMISSION_GRANTED)
+        {
+            setSystemAnimationsScale(DEFAULT);
+        }
+    }
+
+    private void setSystemAnimationsScale(float animationScale)
+    {
+        try
+        {
+            Class<?> windowManagerStubClazz = Class.forName("android.view.IWindowManager$Stub");
+            Method asInterface =
+                    windowManagerStubClazz.getDeclaredMethod("asInterface", IBinder.class);
+            Class<?> serviceManagerClazz = Class.forName("android.os.ServiceManager");
+            Method getService = serviceManagerClazz.getDeclaredMethod("getService", String.class);
+            Class<?> windowManagerClazz = Class.forName("android.view.IWindowManager");
+            Method setAnimationScales =
+                    windowManagerClazz.getDeclaredMethod("setAnimationScales", float[].class);
+            Method getAnimationScales = windowManagerClazz.getDeclaredMethod("getAnimationScales");
+
+            IBinder windowManagerBinder = (IBinder) getService.invoke(null, "window");
+            Object windowManagerObj = asInterface.invoke(null, windowManagerBinder);
+            float[] currentScales = (float[]) getAnimationScales.invoke(windowManagerObj);
+            for (int i = 0; i < currentScales.length; i++)
+                currentScales[i] = animationScale;
+
+            setAnimationScales.invoke(windowManagerObj, new Object[]{currentScales});
+            Log.i("SystemHelper", "All animations successfully disabled");
+        }
+        catch (Exception e)
+        {
+            Log.e("SystemHelper", "Could not change animation scale to " + animationScale + " :'(");
+        }
+    }
+}

app/src/androidTest/java/org/isoron/uhabits/unit/HabitFixtures.java

@@ -0,0 +1,169 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.unit;
+
+import android.content.Context;
+import android.support.annotation.Nullable;
+import android.util.Log;
+
+import org.isoron.uhabits.helpers.ColorHelper;
+import org.isoron.uhabits.helpers.DatabaseHelper;
+import org.isoron.uhabits.helpers.DateHelper;
+import org.isoron.uhabits.models.Habit;
+import org.isoron.uhabits.tasks.BaseTask;
+import org.isoron.uhabits.tasks.ExportDBTask;
+import org.isoron.uhabits.tasks.ImportDataTask;
+
+import java.io.File;
+import java.io.InputStream;
+import java.util.Random;
+
+import static org.junit.Assert.fail;
+
+public class HabitFixtures
+{
+    public static boolean NON_DAILY_HABIT_CHECKS[] = { true, false, false, true, true, true, false,
+            false, true, true };
+
+    public static Habit createShortHabit()
+    {
+        Habit habit = new Habit();
+        habit.name = "Wake up early";
+        habit.description = "Did you wake up before 6am?";
+        habit.freqNum = 2;
+        habit.freqDen = 3;
+        habit.save();
+
+        long timestamp = DateHelper.getStartOfToday();
+        for(boolean c : NON_DAILY_HABIT_CHECKS)
+        {
+            if(c) habit.repetitions.toggle(timestamp);
+            timestamp -= DateHelper.millisecondsInOneDay;
+        }
+
+        return habit;
+    }
+
+    public static Habit createEmptyHabit()
+    {
+        Habit habit = new Habit();
+        habit.name = "Meditate";
+        habit.description = "Did you meditate this morning?";
+        habit.color = ColorHelper.palette[3];
+        habit.freqNum = 1;
+        habit.freqDen = 1;
+        habit.save();
+        return habit;
+    }
+
+    public static Habit createLongHabit()
+    {
+        Habit habit = createEmptyHabit();
+        habit.freqNum = 3;
+        habit.freqDen = 7;
+        habit.color = ColorHelper.palette[4];
+        habit.save();
+
+        long day = DateHelper.millisecondsInOneDay;
+        long today = DateHelper.getStartOfToday();
+        int marks[] = { 0, 1, 3, 5, 7, 8, 9, 10, 12, 14, 15, 17, 19, 20, 26, 27, 28, 50, 51, 52,
+                53, 54, 58, 60, 63, 65, 70, 71, 72, 73, 74, 75, 80, 81, 83, 89, 90, 91, 95,
+                102, 103, 108, 109, 120};
+
+        for(int mark : marks)
+            habit.repetitions.toggle(today - mark * day);
+
+        return habit;
+    }
+
+    public static void generateHugeDataSet() throws Throwable
+    {
+        final int nHabits = 30;
+        final int nYears = 5;
+
+        DatabaseHelper.executeAsTransaction(new DatabaseHelper.Command()
+        {
+            @Override
+            public void execute()
+            {
+                Random rand = new Random();
+
+                for(int i = 0; i < nHabits; i++)
+                {
+                    Log.i("HabitFixture", String.format("Creating habit %d / %d", i, nHabits));
+
+                    Habit habit = new Habit();
+                    habit.name = String.format("Habit %d", i);
+                    habit.save();
+
+                    long today = DateHelper.getStartOfToday();
+                    long day = DateHelper.millisecondsInOneDay;
+
+
+                    for(int j = 0; j < 365 * nYears; j++)
+                    {
+                        if(rand.nextBoolean())
+                            habit.repetitions.toggle(today - j * day);
+                    }
+
+                    habit.scores.getTodayValue();
+                    habit.streaks.getAll(1);
+                }
+            }
+        });
+
+        ExportDBTask task = new ExportDBTask(null);
+        task.setListener(new ExportDBTask.Listener()
+        {
+            @Override
+            public void onExportDBFinished(@Nullable String filename)
+            {
+                if(filename != null)
+                    Log.i("HabitFixture", String.format("Huge data set exported to %s", filename));
+                else
+                    Log.i("HabitFixture", "Failed to save database");
+            }
+        });
+        task.execute();
+
+        BaseTask.waitForTasks(30000);
+    }
+
+    public static void loadHugeDataSet(Context testContext) throws Throwable
+    {
+        File baseDir = DatabaseHelper.getFilesDir("Backups");
+        if(baseDir == null) fail("baseDir should not be null");
+
+        File dst = new File(String.format("%s/%s", baseDir.getPath(), "loopHuge.db"));
+        InputStream in = testContext.getAssets().open("fixtures/loopHuge.db");
+        DatabaseHelper.copy(in, dst);
+
+        ImportDataTask task = new ImportDataTask(dst, null);
+        task.execute();
+
+        BaseTask.waitForTasks(30000);
+    }
+
+    public static void purgeHabits()
+    {
+        for(Habit h : Habit.getAll(true))
+            h.cascadeDelete();
+    }
+}

app/src/androidTest/java/org/isoron/uhabits/unit/HabitsApplicationTest.java

@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.unit;
+
+import android.os.Build;
+import android.support.test.runner.AndroidJUnit4;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import org.isoron.uhabits.HabitsApplication;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.io.IOException;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.containsString;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class HabitsApplicationTest
+{
+    @Test
+    public void test_getLogcat() throws IOException
+    {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN)
+            return;
+
+        String msg = "LOGCAT TEST";
+        new RuntimeException(msg).printStackTrace();
+
+        String log = HabitsApplication.getLogcat();
+        assertThat(log, containsString(msg));
+    }
+}

app/src/androidTest/java/org/isoron/uhabits/unit/commands/ArchiveHabitsCommandTest.java

@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.unit.commands;
+
+import android.support.test.runner.AndroidJUnit4;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import org.isoron.uhabits.BaseTest;
+import org.isoron.uhabits.commands.ArchiveHabitsCommand;
+import org.isoron.uhabits.models.Habit;
+import org.isoron.uhabits.unit.HabitFixtures;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.util.Collections;
+
+import static junit.framework.Assert.assertFalse;
+import static junit.framework.Assert.assertTrue;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class ArchiveHabitsCommandTest extends BaseTest
+{
+
+    private ArchiveHabitsCommand command;
+    private Habit habit;
+
+    @Before
+    public void setup()
+    {
+        super.setup();
+
+        habit = HabitFixtures.createShortHabit();
+        command = new ArchiveHabitsCommand(Collections.singletonList(habit));
+    }
+
+    @Test
+    public void testExecuteUndoRedo()
+    {
+        assertFalse(habit.isArchived());
+
+        command.execute();
+        assertTrue(habit.isArchived());
+
+        command.undo();
+        assertFalse(habit.isArchived());
+
+        command.execute();
+        assertTrue(habit.isArchived());
+    }
+}

app/src/androidTest/java/org/isoron/uhabits/unit/commands/ChangeHabitColorCommandTest.java

@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.unit.commands;
+
+import android.support.test.runner.AndroidJUnit4;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import org.isoron.uhabits.BaseTest;
+import org.isoron.uhabits.commands.ChangeHabitColorCommand;
+import org.isoron.uhabits.helpers.ColorHelper;
+import org.isoron.uhabits.models.Habit;
+import org.isoron.uhabits.unit.HabitFixtures;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.util.LinkedList;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.equalTo;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class ChangeHabitColorCommandTest extends BaseTest
+{
+    private ChangeHabitColorCommand command;
+    private LinkedList<Habit> habits;
+
+    @Before
+    public void setup()
+    {
+        super.setup();
+
+        habits = new LinkedList<>();
+
+        for(int i = 0; i < 3; i ++)
+        {
+            Habit habit = HabitFixtures.createShortHabit();
+            habit.color = ColorHelper.palette[i+1];
+            habit.save();
+            habits.add(habit);
+        }
+
+        command = new ChangeHabitColorCommand(habits, ColorHelper.palette[0]);
+    }
+
+    @Test
+    public void testExecuteUndoRedo()
+    {
+        checkOriginalColors();
+
+        command.execute();
+        checkNewColors();
+
+        command.undo();
+        checkOriginalColors();
+
+        command.execute();
+        checkNewColors();
+    }
+
+    private void checkOriginalColors()
+    {
+        int k = 0;
+        for(Habit h : habits)
+            assertThat(h.color, equalTo(ColorHelper.palette[++k]));
+    }
+
+    private void checkNewColors()
+    {
+        for(Habit h : habits)
+            assertThat(h.color, equalTo(ColorHelper.palette[0]));
+    }
+}

app/src/androidTest/java/org/isoron/uhabits/unit/commands/CreateHabitCommandTest.java

@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.unit.commands;
+
+import android.support.test.runner.AndroidJUnit4;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import org.isoron.uhabits.BaseTest;
+import org.isoron.uhabits.commands.CreateHabitCommand;
+import org.isoron.uhabits.models.Habit;
+import org.isoron.uhabits.unit.HabitFixtures;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.util.List;
+
+import static junit.framework.Assert.assertTrue;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.equalTo;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class CreateHabitCommandTest extends BaseTest
+{
+
+    private CreateHabitCommand command;
+    private Habit model;
+
+    @Before
+    public void setup()
+    {
+        super.setup();
+
+        model = new Habit();
+        model.name = "New habit";
+        command = new CreateHabitCommand(model);
+
+        HabitFixtures.purgeHabits();
+    }
+
+    @Test
+    public void testExecuteUndoRedo()
+    {
+        assertTrue(Habit.getAll(true).isEmpty());
+
+        command.execute();
+
+        List<Habit> allHabits = Habit.getAll(true);
+        assertThat(allHabits.size(), equalTo(1));
+
+        Habit habit = allHabits.get(0);
+        Long id = habit.getId();
+        assertThat(habit.name, equalTo(model.name));
+
+        command.undo();
+        assertTrue(Habit.getAll(true).isEmpty());
+
+        command.execute();
+        allHabits = Habit.getAll(true);
+        assertThat(allHabits.size(), equalTo(1));
+
+        habit = allHabits.get(0);
+        Long newId = habit.getId();
+        assertThat(id, equalTo(newId));
+        assertThat(habit.name, equalTo(model.name));
+    }
+}

app/src/androidTest/java/org/isoron/uhabits/unit/commands/DeleteHabitsCommandTest.java

@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.unit.commands;
+
+import android.support.test.runner.AndroidJUnit4;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import org.isoron.uhabits.BaseTest;
+import org.isoron.uhabits.commands.DeleteHabitsCommand;
+import org.isoron.uhabits.models.Habit;
+import org.isoron.uhabits.unit.HabitFixtures;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+import org.junit.runner.RunWith;
+
+import java.util.LinkedList;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.equalTo;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class DeleteHabitsCommandTest extends BaseTest
+{
+    private DeleteHabitsCommand command;
+    private LinkedList<Habit> habits;
+
+    @Rule
+    public ExpectedException thrown = ExpectedException.none();
+
+    @Before
+    public void setup()
+    {
+        super.setup();
+
+        HabitFixtures.purgeHabits();
+        habits = new LinkedList<>();
+
+        // Habits that shuold be deleted
+        for(int i = 0; i < 3; i ++)
+        {
+            Habit habit = HabitFixtures.createShortHabit();
+            habits.add(habit);
+        }
+
+        // Extra habit that should not be deleted
+        Habit extraHabit = HabitFixtures.createShortHabit();
+        extraHabit.name = "extra";
+        extraHabit.save();
+
+        command = new DeleteHabitsCommand(habits);
+    }
+
+    @Test
+    public void testExecuteUndoRedo()
+    {
+        assertThat(Habit.getAll(true).size(), equalTo(4));
+
+        command.execute();
+        assertThat(Habit.getAll(true).size(), equalTo(1));
+        assertThat(Habit.getAll(true).get(0).name, equalTo("extra"));
+
+        thrown.expect(UnsupportedOperationException.class);
+        command.undo();
+    }
+}

app/src/androidTest/java/org/isoron/uhabits/unit/commands/EditHabitCommandTest.java

@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *  
+ * This file is part of Loop Habit Tracker.
+ *  
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *  
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *  
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.unit.commands;
+
+import android.support.test.runner.AndroidJUnit4;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import org.isoron.uhabits.BaseTest;
+import org.isoron.uhabits.commands.EditHabitCommand;
+import org.isoron.uhabits.models.Habit;
+import org.isoron.uhabits.unit.HabitFixtures;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static junit.framework.Assert.assertTrue;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.equalTo;
+import static org.hamcrest.Matchers.greaterThan;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class EditHabitCommandTest extends BaseTest
+{
+
+    private EditHabitCommand command;
+    private Habit habit;
+    private Habit modified;
+    private Long id;
+
+    @Before
+    public void setup()
+    {
+        super.setup();
+
+        habit = HabitFixtures.createShortHabit();
+        habit.name = "original";
+        habit.freqDen = 1;
+        habit.freqNum = 1;
+        habit.save();
+
+        id = habit.getId();
+
+        modified = new Habit(habit);
+        modified.name = "modified";
+    }
+
+    @Test
+    public void testExecuteUndoRedo()
+    {
+        command = new EditHabitCommand(habit, modified);
+
+        int originalScore = habit.scores.getTodayValue();
+        assertThat(habit.name, equalTo("original"));
+
+        command.execute();
+        refreshHabit();
+        assertThat(habit.name, equalTo("modified"));
+        assertThat(habit.scores.getTodayValue(), equalTo(originalScore));
+
+        command.undo();
+        refreshHabit();
+        assertThat(habit.name, equalTo("original"));
+        assertThat(habit.scores.getTodayValue(), equalTo(originalScore));
+
+        command.execute();
+        refreshHabit();
+        assertThat(habit.name, equalTo("modified"));
+        assertThat(habit.scores.getTodayValue(), equalTo(originalScore));
+    }
+
+    @Test
+    public void testExecuteUndoRedo_withModifiedInterval()
+    {
+        modified.freqNum = 1;
+        modified.freqDen = 7;
+        command = new EditHabitCommand(habit, modified);
+
+        int originalScore = habit.scores.getTodayValue();
+        assertThat(habit.name, equalTo("original"));
+
+        command.execute();
+        refreshHabit();
+        assertThat(habit.name, equalTo("modified"));
+        assertThat(habit.scores.getTodayValue(), greaterThan(originalScore));
+
+        command.undo();
+        refreshHabit();
+        assertThat(habit.name, equalTo("original"));
+        assertThat(habit.scores.getTodayValue(), equalTo(originalScore));
+
+        command.execute();
+        refreshHabit();
+        assertThat(habit.name, equalTo("modified"));
+        assertThat(habit.scores.getTodayValue(), greaterThan(originalScore));
+    }
+
+    private void refreshHabit()
+    {
+        habit = Habit.get(id);
+        assertTrue(habit != null);
+    }
+}

app/src/androidTest/java/org/isoron/uhabits/unit/commands/ToggleRepetitionCommandTest.java

@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.unit.commands;
+
+import android.support.test.runner.AndroidJUnit4;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import org.isoron.uhabits.BaseTest;
+import org.isoron.uhabits.commands.ToggleRepetitionCommand;
+import org.isoron.uhabits.helpers.DateHelper;
+import org.isoron.uhabits.models.Habit;
+import org.isoron.uhabits.unit.HabitFixtures;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static junit.framework.Assert.assertFalse;
+import static junit.framework.Assert.assertTrue;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class ToggleRepetitionCommandTest extends BaseTest
+{
+
+    private ToggleRepetitionCommand command;
+    private Habit habit;
+    private long today;
+
+    @Before
+    public void setup()
+    {
+        super.setup();
+
+        habit = HabitFixtures.createShortHabit();
+
+        today = DateHelper.getStartOfToday();
+        command = new ToggleRepetitionCommand(habit, today);
+    }
+
+    @Test
+    public void testExecuteUndoRedo()
+    {
+        assertTrue(habit.repetitions.contains(today));
+
+        command.execute();
+        assertFalse(habit.repetitions.contains(today));
+
+        command.undo();
+        assertTrue(habit.repetitions.contains(today));
+
+        command.execute();
+        assertFalse(habit.repetitions.contains(today));
+    }
+}

app/src/androidTest/java/org/isoron/uhabits/unit/commands/UnarchiveHabitsCommandTest.java

@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.unit.commands;
+
+import android.support.test.runner.AndroidJUnit4;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import org.isoron.uhabits.BaseTest;
+import org.isoron.uhabits.commands.UnarchiveHabitsCommand;
+import org.isoron.uhabits.models.Habit;
+import org.isoron.uhabits.unit.HabitFixtures;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.util.Collections;
+
+import static junit.framework.Assert.assertFalse;
+import static junit.framework.Assert.assertTrue;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class UnarchiveHabitsCommandTest extends BaseTest
+{
+
+    private UnarchiveHabitsCommand command;
+    private Habit habit;
+
+    @Before
+    public void setup()
+    {
+        super.setup();
+
+        habit = HabitFixtures.createShortHabit();
+        Habit.archive(Collections.singletonList(habit));
+
+        command = new UnarchiveHabitsCommand(Collections.singletonList(habit));
+    }
+
+    @Test
+    public void testExecuteUndoRedo()
+    {
+        assertTrue(habit.isArchived());
+
+        command.execute();
+        assertFalse(habit.isArchived());
+
+        command.undo();
+        assertTrue(habit.isArchived());
+
+        command.execute();
+        assertFalse(habit.isArchived());
+    }
+}

app/src/androidTest/java/org/isoron/uhabits/unit/io/HabitsCSVExporterTest.java

@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.unit.io;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import org.isoron.uhabits.BaseTest;
+import org.isoron.uhabits.helpers.DatabaseHelper;
+import org.isoron.uhabits.io.HabitsCSVExporter;
+import org.isoron.uhabits.models.Habit;
+import org.isoron.uhabits.unit.HabitFixtures;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Enumeration;
+import java.util.List;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipFile;
+
+import static junit.framework.Assert.assertTrue;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class HabitsCSVExporterTest extends BaseTest
+{
+    private File baseDir;
+
+    @Before
+    public void setup()
+    {
+        super.setup();
+
+        HabitFixtures.purgeHabits();
+        HabitFixtures.createShortHabit();
+        HabitFixtures.createEmptyHabit();
+
+        Context targetContext = InstrumentationRegistry.getTargetContext();
+        baseDir = targetContext.getCacheDir();
+    }
+
+    private void unzip(File file) throws IOException
+    {
+        ZipFile zip = new ZipFile(file);
+        Enumeration<? extends ZipEntry> e = zip.entries();
+
+        while(e.hasMoreElements())
+        {
+            ZipEntry entry = e.nextElement();
+            InputStream stream = zip.getInputStream(entry);
+
+            String outputFilename = String.format("%s/%s", baseDir.getAbsolutePath(),
+                    entry.getName());
+            File outputFile = new File(outputFilename);
+
+            File parent = outputFile.getParentFile();
+            if(parent != null) parent.mkdirs();
+
+            DatabaseHelper.copy(stream, outputFile);
+        }
+
+        zip.close();
+    }
+
+    @Test
+    public void testExportCSV() throws IOException
+    {
+        List<Habit> habits = Habit.getAll(true);
+
+        HabitsCSVExporter exporter = new HabitsCSVExporter(habits, baseDir);
+        String filename = exporter.writeArchive();
+        assertAbsolutePathExists(filename);
+
+        File archive = new File(filename);
+        unzip(archive);
+
+        assertPathExists("Habits.csv");
+        assertPathExists("001 Wake up early");
+        assertPathExists("001 Wake up early/Checkmarks.csv");
+        assertPathExists("001 Wake up early/Scores.csv");
+        assertPathExists("002 Meditate/Checkmarks.csv");
+        assertPathExists("002 Meditate/Scores.csv");
+    }
+
+    private void assertPathExists(String s)
+    {
+        assertAbsolutePathExists(String.format("%s/%s", baseDir.getAbsolutePath(), s));
+    }
+
+    private void assertAbsolutePathExists(String s)
+    {
+        File file = new File(s);
+        assertTrue(String.format("File %s should exist", file.getAbsolutePath()), file.exists());
+    }
+}

app/src/androidTest/java/org/isoron/uhabits/unit/io/ImportTest.java

@@ -0,0 +1,173 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.unit.io;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import org.isoron.uhabits.BaseTest;
+import org.isoron.uhabits.helpers.DatabaseHelper;
+import org.isoron.uhabits.helpers.DateHelper;
+import org.isoron.uhabits.io.GenericImporter;
+import org.isoron.uhabits.models.Habit;
+import org.isoron.uhabits.unit.HabitFixtures;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.GregorianCalendar;
+import java.util.List;
+
+import static org.hamcrest.Matchers.equalTo;
+import static org.hamcrest.Matchers.is;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertThat;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class ImportTest extends BaseTest
+{
+    private File baseDir;
+    private Context context;
+
+    @Before
+    public void setup()
+    {
+        super.setup();
+        DateHelper.setFixedLocalTime(null);
+
+        HabitFixtures.purgeHabits();
+        context = InstrumentationRegistry.getInstrumentation().getContext();
+        baseDir = DatabaseHelper.getFilesDir("Backups");
+        if(baseDir == null) fail("baseDir should not be null");
+    }
+
+    private void copyAssetToFile(String assetPath, File dst) throws IOException
+    {
+        InputStream in = context.getAssets().open(assetPath);
+        DatabaseHelper.copy(in, dst);
+    }
+
+    private void importFromFile(String assetFilename) throws IOException
+    {
+        File file = new File(String.format("%s/%s", baseDir.getPath(), assetFilename));
+        copyAssetToFile(assetFilename, file);
+        assertTrue(file.exists());
+        assertTrue(file.canRead());
+
+        GenericImporter importer = new GenericImporter();
+        assertThat(importer.canHandle(file), is(true));
+
+        importer.importHabitsFromFile(file);
+    }
+
+    private boolean containsRepetition(Habit h, int year, int month, int day)
+    {
+        GregorianCalendar date = DateHelper.getStartOfTodayCalendar();
+        date.set(year, month - 1, day);
+        return h.repetitions.contains(date.getTimeInMillis());
+    }
+
+    @Test
+    public void testTickmateDB() throws IOException
+    {
+        importFromFile("tickmate.db");
+
+        List<Habit> habits = Habit.getAll(true);
+        assertThat(habits.size(), equalTo(3));
+
+        Habit h = habits.get(0);
+        assertThat(h.name, equalTo("Vegan"));
+        assertTrue(containsRepetition(h, 2016, 1, 24));
+        assertTrue(containsRepetition(h, 2016, 2, 5));
+        assertTrue(containsRepetition(h, 2016, 3, 18));
+        assertFalse(containsRepetition(h, 2016, 3, 14));
+    }
+
+    @Test
+    public void testRewireDB() throws IOException
+    {
+        importFromFile("rewire.db");
+
+        List<Habit> habits = Habit.getAll(true);
+        assertThat(habits.size(), equalTo(3));
+
+        Habit habit = habits.get(0);
+        assertThat(habit.name, equalTo("Wake up early"));
+        assertThat(habit.freqNum, equalTo(3));
+        assertThat(habit.freqDen, equalTo(7));
+        assertFalse(habit.hasReminder());
+        assertFalse(containsRepetition(habit, 2015, 12, 31));
+        assertTrue(containsRepetition(habit, 2016, 1, 18));
+        assertTrue(containsRepetition(habit, 2016, 1, 28));
+        assertFalse(containsRepetition(habit, 2016, 3, 10));
+
+        habit = habits.get(1);
+        assertThat(habit.name, equalTo("brush teeth"));
+        assertThat(habit.freqNum, equalTo(3));
+        assertThat(habit.freqDen, equalTo(7));
+        assertThat(habit.reminderHour, equalTo(8));
+        assertThat(habit.reminderMin, equalTo(0));
+        boolean[] reminderDays = {false, true, true, true, true, true, false};
+        assertThat(habit.reminderDays, equalTo(DateHelper.packWeekdayList(reminderDays)));
+    }
+
+    @Test
+    public void testHabitBullCSV() throws IOException
+    {
+        importFromFile("habitbull.csv");
+
+        List<Habit> habits = Habit.getAll(true);
+        assertThat(habits.size(), equalTo(4));
+
+        Habit habit = habits.get(0);
+        assertThat(habit.name, equalTo("Breed dragons"));
+        assertThat(habit.description, equalTo("with love and fire"));
+        assertThat(habit.freqNum, equalTo(1));
+        assertThat(habit.freqDen, equalTo(1));
+        assertTrue(containsRepetition(habit, 2016, 3, 18));
+        assertTrue(containsRepetition(habit, 2016, 3, 19));
+        assertFalse(containsRepetition(habit, 2016, 3, 20));
+    }
+
+    @Test
+    public void testLoopDB() throws IOException
+    {
+        importFromFile("loop.db");
+
+        List<Habit> habits = Habit.getAll(true);
+        assertThat(habits.size(), equalTo(9));
+
+        Habit habit = habits.get(0);
+        assertThat(habit.name, equalTo("Wake up early"));
+        assertThat(habit.freqNum, equalTo(3));
+        assertThat(habit.freqDen, equalTo(7));
+        assertTrue(containsRepetition(habit, 2016, 3, 14));
+        assertTrue(containsRepetition(habit, 2016, 3, 16));
+        assertFalse(containsRepetition(habit, 2016, 3, 17));
+    }
+}

app/src/androidTest/java/org/isoron/uhabits/unit/models/CheckmarkListTest.java

@@ -0,0 +1,175 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.unit.models;
+
+import android.support.test.runner.AndroidJUnit4;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import org.isoron.uhabits.BaseTest;
+import org.isoron.uhabits.helpers.DateHelper;
+import org.isoron.uhabits.models.Habit;
+import org.isoron.uhabits.unit.HabitFixtures;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.io.IOException;
+import java.io.StringWriter;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.equalTo;
+import static org.isoron.uhabits.models.Checkmark.CHECKED_EXPLICITLY;
+import static org.isoron.uhabits.models.Checkmark.CHECKED_IMPLICITLY;
+import static org.isoron.uhabits.models.Checkmark.UNCHECKED;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class CheckmarkListTest extends BaseTest
+{
+    Habit nonDailyHabit;
+    private Habit emptyHabit;
+
+    @Before
+    public void setup()
+    {
+        super.setup();
+
+        HabitFixtures.purgeHabits();
+        nonDailyHabit = HabitFixtures.createShortHabit();
+        emptyHabit = HabitFixtures.createEmptyHabit();
+    }
+
+    @After
+    public void tearDown()
+    {
+        DateHelper.setFixedLocalTime(null);
+    }
+
+    @Test
+    public void test_getAllValues_withNonDailyHabit()
+    {
+        int[] expectedValues = { CHECKED_EXPLICITLY, UNCHECKED, CHECKED_IMPLICITLY,
+                CHECKED_EXPLICITLY, CHECKED_EXPLICITLY, CHECKED_EXPLICITLY, UNCHECKED,
+                CHECKED_IMPLICITLY, CHECKED_EXPLICITLY, CHECKED_EXPLICITLY };
+
+        int[] actualValues = nonDailyHabit.checkmarks.getAllValues();
+
+        assertThat(actualValues, equalTo(expectedValues));
+    }
+
+    @Test
+    public void test_getAllValues_withEmptyHabit()
+    {
+        int[] expectedValues = new int[0];
+        int[] actualValues = emptyHabit.checkmarks.getAllValues();
+
+        assertThat(actualValues, equalTo(expectedValues));
+    }
+
+    @Test
+    public void test_getAllValues_moveForwardInTime()
+    {
+        travelInTime(3);
+
+        int[] expectedValues = { UNCHECKED, UNCHECKED, UNCHECKED, CHECKED_EXPLICITLY, UNCHECKED,
+                CHECKED_IMPLICITLY, CHECKED_EXPLICITLY, CHECKED_EXPLICITLY, CHECKED_EXPLICITLY,
+                UNCHECKED, CHECKED_IMPLICITLY, CHECKED_EXPLICITLY, CHECKED_EXPLICITLY };
+
+        int[] actualValues = nonDailyHabit.checkmarks.getAllValues();
+
+        assertThat(actualValues, equalTo(expectedValues));
+    }
+
+    @Test
+    public void test_getAllValues_moveBackwardsInTime()
+    {
+        travelInTime(-3);
+
+        int[] expectedValues = { CHECKED_EXPLICITLY, CHECKED_EXPLICITLY, CHECKED_EXPLICITLY,
+                UNCHECKED, CHECKED_IMPLICITLY, CHECKED_EXPLICITLY, CHECKED_EXPLICITLY };
+
+        int[] actualValues = nonDailyHabit.checkmarks.getAllValues();
+
+        assertThat(actualValues, equalTo(expectedValues));
+    }
+
+    @Test
+    public void test_getValues_withInvalidInterval()
+    {
+        int values[] = nonDailyHabit.checkmarks.getValues(100L, -100L);
+        assertThat(values, equalTo(new int[0]));
+    }
+
+    @Test
+    public void test_getValues_withValidInterval()
+    {
+        long from = DateHelper.getStartOfToday() - 15 * DateHelper.millisecondsInOneDay;
+        long to = DateHelper.getStartOfToday() - 5 * DateHelper.millisecondsInOneDay;
+
+        int[] expectedValues = { CHECKED_EXPLICITLY, UNCHECKED, CHECKED_IMPLICITLY,
+                CHECKED_EXPLICITLY, CHECKED_EXPLICITLY, UNCHECKED, UNCHECKED, UNCHECKED, UNCHECKED,
+                UNCHECKED, UNCHECKED };
+
+        int[] actualValues = nonDailyHabit.checkmarks.getValues(from, to);
+
+        assertThat(actualValues, equalTo(expectedValues));
+    }
+
+    @Test
+    public void test_getTodayValue()
+    {
+        travelInTime(-1);
+        assertThat(nonDailyHabit.checkmarks.getTodayValue(), equalTo(UNCHECKED));
+
+        travelInTime(0);
+        assertThat(nonDailyHabit.checkmarks.getTodayValue(), equalTo(CHECKED_EXPLICITLY));
+
+        travelInTime(1);
+        assertThat(nonDailyHabit.checkmarks.getTodayValue(), equalTo(UNCHECKED));
+    }
+
+    @Test
+    public void test_writeCSV() throws IOException
+    {
+        String expectedCSV =
+                "2015-01-16,2\n" +
+                "2015-01-17,2\n" +
+                "2015-01-18,1\n" +
+                "2015-01-19,0\n" +
+                "2015-01-20,2\n" +
+                "2015-01-21,2\n" +
+                "2015-01-22,2\n" +
+                "2015-01-23,1\n" +
+                "2015-01-24,0\n" +
+                "2015-01-25,2\n";
+
+        StringWriter writer = new StringWriter();
+        nonDailyHabit.checkmarks.writeCSV(writer);
+
+        assertThat(writer.toString(), equalTo(expectedCSV));
+    }
+
+    private void travelInTime(int days)
+    {
+        DateHelper.setFixedLocalTime(FIXED_LOCAL_TIME +
+                days * DateHelper.millisecondsInOneDay);
+    }
+}

app/src/androidTest/java/org/isoron/uhabits/unit/models/HabitTest.java

@@ -0,0 +1,379 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.unit.models;
+
+import android.graphics.Color;
+import android.support.test.runner.AndroidJUnit4;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import org.hamcrest.MatcherAssert;
+import org.isoron.uhabits.BaseTest;
+import org.isoron.uhabits.helpers.DateHelper;
+import org.isoron.uhabits.models.Habit;
+import org.isoron.uhabits.unit.HabitFixtures;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.io.IOException;
+import java.io.StringWriter;
+import java.util.LinkedList;
+import java.util.List;
+
+import static org.hamcrest.Matchers.equalTo;
+import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.nullValue;
+import static org.hamcrest.core.IsNot.not;
+import static org.junit.Assert.assertThat;
+import static org.junit.Assert.fail;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class HabitTest extends BaseTest
+{
+    @Before
+    public void setup()
+    {
+        super.setup();
+        HabitFixtures.purgeHabits();
+    }
+
+    @Test
+    public void testConstructor_default()
+    {
+        Habit habit = new Habit();
+        assertThat(habit.archived, is(0));
+        assertThat(habit.highlight, is(0));
+
+        assertThat(habit.reminderHour, is(nullValue()));
+        assertThat(habit.reminderMin, is(nullValue()));
+
+        assertThat(habit.reminderDays, is(not(nullValue())));
+        assertThat(habit.streaks, is(not(nullValue())));
+        assertThat(habit.scores, is(not(nullValue())));
+        assertThat(habit.repetitions, is(not(nullValue())));
+        assertThat(habit.checkmarks, is(not(nullValue())));
+    }
+
+    @Test
+    public void testConstructor_habit()
+    {
+        Habit model = new Habit();
+        model.archived = 1;
+        model.highlight = 1;
+        model.color = Color.BLACK;
+        model.freqNum = 10;
+        model.freqDen = 20;
+        model.reminderDays = 1;
+        model.reminderHour = 8;
+        model.reminderMin = 30;
+        model.position = 0;
+
+        Habit habit = new Habit(model);
+        assertThat(habit.archived, is(model.archived));
+        assertThat(habit.highlight, is(model.highlight));
+        assertThat(habit.color, is(model.color));
+        assertThat(habit.freqNum, is(model.freqNum));
+        assertThat(habit.freqDen, is(model.freqDen));
+        assertThat(habit.reminderDays, is(model.reminderDays));
+        assertThat(habit.reminderHour, is(model.reminderHour));
+        assertThat(habit.reminderMin, is(model.reminderMin));
+        assertThat(habit.position, is(model.position));
+    }
+
+    @Test
+    public void test_get_withValidId()
+    {
+        Habit habit = new Habit();
+        habit.save();
+
+        Habit habit2 = Habit.get(habit.getId());
+        assertThat(habit, equalTo(habit2));
+    }
+
+    @Test
+    public void test_get_withInvalidId()
+    {
+        Habit habit = Habit.get(123456L);
+        assertThat(habit, is(nullValue()));
+    }
+
+    @Test
+    public void test_getAll_withoutArchived()
+    {
+        List<Habit> habits = new LinkedList<>();
+        List<Habit> habitsWithArchived = new LinkedList<>();
+
+        for(int i = 0; i < 10; i++)
+        {
+            Habit h = new Habit();
+
+            if(i % 2 == 0)
+                h.archived = 1;
+            else
+                habits.add(h);
+
+            habitsWithArchived.add(h);
+            h.save();
+        }
+
+        assertThat(habits, equalTo(Habit.getAll(false)));
+        assertThat(habitsWithArchived, equalTo(Habit.getAll(true)));
+    }
+
+    @Test
+    public void test_getByPosition()
+    {
+        List<Habit> habits = new LinkedList<>();
+
+        for(int i = 0; i < 10; i++)
+        {
+            Habit h = new Habit();
+            h.save();
+            habits.add(h);
+        }
+
+        for(int i = 0; i < 10; i++)
+        {
+            Habit h = Habit.getByPosition(i);
+            if(h == null) fail();
+            assertThat(h, equalTo(habits.get(i)));
+        }
+    }
+
+    @Test
+    public void test_count()
+    {
+        for(int i = 0; i < 10; i++)
+        {
+            Habit h = new Habit();
+            if(i % 2 == 0) h.archived = 1;
+            h.save();
+        }
+
+        assertThat(Habit.count(), equalTo(5));
+    }
+
+
+    @Test
+    public void test_countWithArchived()
+    {
+        for(int i = 0; i < 10; i++)
+        {
+            Habit h = new Habit();
+            if(i % 2 == 0) h.archived = 1;
+            h.save();
+        }
+
+        assertThat(Habit.countWithArchived(), equalTo(10));
+    }
+
+    @Test
+    public void test_updateId()
+    {
+        Habit habit = new Habit();
+        habit.name = "Hello World";
+        habit.save();
+
+        Long oldId = habit.getId();
+        Long newId = 123456L;
+        Habit.updateId(oldId, newId);
+
+        Habit newHabit = Habit.get(newId);
+        if(newHabit == null) fail();
+        assertThat(newHabit, is(not(nullValue())));
+        assertThat(newHabit.name, equalTo(habit.name));
+    }
+
+    @Test
+    public void test_reorder()
+    {
+        List<Long> ids = new LinkedList<>();
+
+        int n = 10;
+        for (int i = 0; i < n; i++)
+        {
+            Habit h = new Habit();
+            h.save();
+            ids.add(h.getId());
+            assertThat(h.position, is(i));
+        }
+
+        int operations[][] = {
+                {5, 2},
+                {3, 7},
+                {4, 4},
+                {3, 2}
+        };
+
+        int expectedPosition[][] = {
+                {0, 1, 3, 4, 5, 2, 6, 7, 8, 9},
+                {0, 1, 7, 3, 4, 2, 5, 6, 8, 9},
+                {0, 1, 7, 3, 4, 2, 5, 6, 8, 9},
+                {0, 1, 7, 2, 4, 3, 5, 6, 8, 9},
+        };
+
+        for(int i = 0; i < operations.length; i++)
+        {
+            int from = operations[i][0];
+            int to = operations[i][1];
+
+            Habit fromHabit = Habit.getByPosition(from);
+            Habit toHabit = Habit.getByPosition(to);
+            Habit.reorder(fromHabit, toHabit);
+
+            int actualPositions[] = new int[n];
+
+            for (int j = 0; j < n; j++)
+            {
+                Habit h = Habit.get(ids.get(j));
+                if (h == null) fail();
+                actualPositions[j] = h.position;
+            }
+
+            assertThat(actualPositions, equalTo(expectedPosition[i]));
+        }
+    }
+
+    @Test
+    public  void test_rebuildOrder()
+    {
+        List<Long> ids = new LinkedList<>();
+        int originalPositions[] = { 0, 1, 1, 4, 6, 8, 10, 10, 13};
+
+        for (int p : originalPositions)
+        {
+            Habit h = new Habit();
+            h.position = p;
+            h.save();
+            ids.add(h.getId());
+        }
+
+        Habit.rebuildOrder();
+
+        for (int i = 0; i < originalPositions.length; i++)
+        {
+            Habit h = Habit.get(ids.get(i));
+            if(h == null) fail();
+            assertThat(h.position, is(i));
+        }
+    }
+
+    @Test
+    public void test_getHabitsWithReminder()
+    {
+        List<Habit> habitsWithReminder = new LinkedList<>();
+
+        for(int i = 0; i < 10; i++)
+        {
+            Habit habit = new Habit();
+            if(i % 2 == 0)
+            {
+                habit.reminderDays = DateHelper.ALL_WEEK_DAYS;
+                habit.reminderHour = 8;
+                habit.reminderMin = 30;
+                habitsWithReminder.add(habit);
+            }
+            habit.save();
+        }
+
+        assertThat(habitsWithReminder, equalTo(Habit.getHabitsWithReminder()));
+    }
+
+    @Test
+    public void test_archive_unarchive()
+    {
+        List<Habit> allHabits = new LinkedList<>();
+        List<Habit> archivedHabits = new LinkedList<>();
+        List<Habit> unarchivedHabits = new LinkedList<>();
+
+        for(int i = 0; i < 10; i++)
+        {
+            Habit habit = new Habit();
+            habit.save();
+            allHabits.add(habit);
+
+            if(i % 2 == 0)
+                archivedHabits.add(habit);
+            else
+                unarchivedHabits.add(habit);
+        }
+
+        Habit.archive(archivedHabits);
+        assertThat(Habit.getAll(false), equalTo(unarchivedHabits));
+        assertThat(Habit.getAll(true), equalTo(allHabits));
+
+        Habit.unarchive(archivedHabits);
+        assertThat(Habit.getAll(false), equalTo(allHabits));
+        assertThat(Habit.getAll(true), equalTo(allHabits));
+    }
+
+    @Test
+    public void test_setColor()
+    {
+        List<Habit> habits = new LinkedList<>();
+
+        for(int i = 0; i < 10; i++)
+        {
+            Habit habit = new Habit();
+            habit.color = i;
+            habit.save();
+            habits.add(habit);
+        }
+
+        int newColor = 100;
+        Habit.setColor(habits, newColor);
+
+        for(Habit h : habits)
+            assertThat(h.color, equalTo(newColor));
+    }
+
+    @Test
+    public void test_hasReminder_clearReminder()
+    {
+        Habit h = new Habit();
+        assertThat(h.hasReminder(), is(false));
+
+        h.reminderDays = DateHelper.ALL_WEEK_DAYS;
+        h.reminderHour = 8;
+        h.reminderMin = 30;
+        assertThat(h.hasReminder(), is(true));
+
+        h.clearReminder();
+        assertThat(h.hasReminder(), is(false));
+    }
+
+    @Test
+    public void test_writeCSV() throws IOException
+    {
+        HabitFixtures.createEmptyHabit();
+        HabitFixtures.createShortHabit();
+
+        String expectedCSV =
+                "Name,Description,NumRepetitions,Interval,Color\n" +
+                "Meditate,Did you meditate this morning?,1,1,#AFB42B\n" +
+                "Wake up early,Did you wake up before 6am?,2,3,#00897B\n";
+
+        StringWriter writer = new StringWriter();
+        Habit.writeCSV(Habit.getAll(true), writer);
+
+        MatcherAssert.assertThat(writer.toString(), equalTo(expectedCSV));
+    }
+}

app/src/androidTest/java/org/isoron/uhabits/unit/models/RepetitionListTest.java

@@ -0,0 +1,191 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.unit.models;
+
+import android.support.test.runner.AndroidJUnit4;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import org.isoron.uhabits.BaseTest;
+import org.isoron.uhabits.helpers.DateHelper;
+import org.isoron.uhabits.models.Habit;
+import org.isoron.uhabits.models.Repetition;
+import org.isoron.uhabits.unit.HabitFixtures;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.util.Arrays;
+import java.util.Calendar;
+import java.util.GregorianCalendar;
+import java.util.HashMap;
+import java.util.Random;
+
+import static junit.framework.Assert.assertFalse;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.equalTo;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class RepetitionListTest extends BaseTest
+{
+    private Habit habit;
+    private Habit emptyHabit;
+
+    @Before
+    public void setup()
+    {
+        super.setup();
+
+        HabitFixtures.purgeHabits();
+        habit = HabitFixtures.createShortHabit();
+        emptyHabit = HabitFixtures.createEmptyHabit();
+    }
+
+    @After
+    public void tearDown()
+    {
+        DateHelper.setFixedLocalTime(null);
+    }
+
+    @Test
+    public void test_contains()
+    {
+        long current = DateHelper.getStartOfToday();
+
+        for(boolean b : HabitFixtures.NON_DAILY_HABIT_CHECKS)
+        {
+            assertThat(habit.repetitions.contains(current), equalTo(b));
+            current -= DateHelper.millisecondsInOneDay;
+        }
+
+        for(int i = 0; i < 3; i++)
+        {
+            assertThat(habit.repetitions.contains(current), equalTo(false));
+            current -= DateHelper.millisecondsInOneDay;
+        }
+    }
+
+    @Test
+    public void test_delete()
+    {
+        long timestamp = DateHelper.getStartOfToday();
+        assertThat(habit.repetitions.contains(timestamp), equalTo(true));
+
+        habit.repetitions.delete(timestamp);
+        assertThat(habit.repetitions.contains(timestamp), equalTo(false));
+    }
+
+    @Test
+    public void test_toggle()
+    {
+        long timestamp = DateHelper.getStartOfToday();
+        assertThat(habit.repetitions.contains(timestamp), equalTo(true));
+
+        habit.repetitions.toggle(timestamp);
+        assertThat(habit.repetitions.contains(timestamp), equalTo(false));
+
+        habit.repetitions.toggle(timestamp);
+        assertThat(habit.repetitions.contains(timestamp), equalTo(true));
+    }
+
+    @Test
+    public void test_getWeekDayFrequency()
+    {
+        Random random = new Random();
+        Integer weekdayCount[][] = new Integer[12][7];
+        Integer monthCount[] = new Integer[12];
+
+        Arrays.fill(monthCount, 0);
+        for(Integer row[] : weekdayCount)
+            Arrays.fill(row, 0);
+
+        GregorianCalendar day = DateHelper.getStartOfTodayCalendar();
+
+        // Sets the current date to the end of November
+        day.set(2015, 10, 30);
+        DateHelper.setFixedLocalTime(day.getTimeInMillis());
+
+        // Add repetitions randomly from January to December
+        // Leaves the month of March empty, to check that it returns null
+        day.set(2015, 0, 1);
+        for(int i = 0; i < 365; i ++)
+        {
+            if(random.nextBoolean())
+            {
+                int month = day.get(Calendar.MONTH);
+                int week = day.get(Calendar.DAY_OF_WEEK) % 7;
+
+                if(month != 2)
+                {
+                    if (month <= 10)
+                    {
+                        weekdayCount[month][week]++;
+                        monthCount[month]++;
+                    }
+                    emptyHabit.repetitions.toggle(day.getTimeInMillis());
+                }
+            }
+
+            day.add(Calendar.DAY_OF_YEAR, 1);
+        }
+
+        HashMap<Long, Integer[]> freq = emptyHabit.repetitions.getWeekdayFrequency();
+
+        // Repetitions until November should be counted correctly
+        for(int month = 0; month < 11; month++)
+        {
+            day.set(2015, month, 1);
+            Integer actualCount[] = freq.get(day.getTimeInMillis());
+            if(monthCount[month] == 0)
+                assertThat(actualCount, equalTo(null));
+            else
+                assertThat(actualCount, equalTo(weekdayCount[month]));
+        }
+
+        // Repetitions in December should be discarded
+        day.set(2015, 11, 1);
+        assertThat(freq.get(day.getTimeInMillis()), equalTo(null));
+    }
+
+    @Test
+    public void test_count()
+    {
+        long to = DateHelper.getStartOfToday();
+        long from = to - 9 * DateHelper.millisecondsInOneDay;
+        assertThat(habit.repetitions.count(from, to), equalTo(6));
+
+        to = DateHelper.getStartOfToday() - DateHelper.millisecondsInOneDay;
+        from = to - 5 * DateHelper.millisecondsInOneDay;
+        assertThat(habit.repetitions.count(from, to), equalTo(3));
+    }
+
+    @Test
+    public void test_getOldest()
+    {
+        long expectedOldestTimestamp = DateHelper.getStartOfToday() - 9 * DateHelper.millisecondsInOneDay;
+
+        assertThat(habit.repetitions.getOldestTimestamp(), equalTo(expectedOldestTimestamp));
+
+        Repetition oldest = habit.repetitions.getOldest();
+        assertFalse(oldest == null);
+        assertThat(oldest.timestamp, equalTo(expectedOldestTimestamp));
+    }
+}

app/src/androidTest/java/org/isoron/uhabits/unit/models/ScoreListTest.java

@@ -0,0 +1,176 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.unit.models;
+
+import android.support.test.runner.AndroidJUnit4;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import org.isoron.uhabits.BaseTest;
+import org.isoron.uhabits.helpers.DatabaseHelper;
+import org.isoron.uhabits.helpers.DateHelper;
+import org.isoron.uhabits.models.Habit;
+import org.isoron.uhabits.models.Score;
+import org.isoron.uhabits.unit.HabitFixtures;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.io.IOException;
+import java.io.StringWriter;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.equalTo;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class ScoreListTest extends BaseTest
+{
+    private Habit habit;
+
+    @Before
+    public void setup()
+    {
+        super.setup();
+
+        HabitFixtures.purgeHabits();
+        habit = HabitFixtures.createEmptyHabit();
+    }
+
+    @After
+    public void tearDown()
+    {
+        DateHelper.setFixedLocalTime(null);
+    }
+
+    @Test
+    public void test_invalidateNewerThan()
+    {
+        assertThat(habit.scores.getTodayValue(), equalTo(0));
+
+        toggleRepetitions(0, 2);
+        assertThat(habit.scores.getTodayValue(), equalTo(1948077));
+
+        habit.freqNum = 1;
+        habit.freqDen = 2;
+        habit.scores.invalidateNewerThan(0);
+
+        assertThat(habit.scores.getTodayValue(), equalTo(1974654));
+    }
+
+    @Test
+    public void test_getTodayStarValue()
+    {
+        assertThat(habit.scores.getTodayStarStatus(), equalTo(Score.EMPTY_STAR));
+
+        int k = 0;
+        while(habit.scores.getTodayValue() < Score.HALF_STAR_CUTOFF) toggleRepetitions(k, ++k);
+        assertThat(habit.scores.getTodayStarStatus(), equalTo(Score.HALF_STAR));
+
+        while(habit.scores.getTodayValue() < Score.FULL_STAR_CUTOFF) toggleRepetitions(k, ++k);
+        assertThat(habit.scores.getTodayStarStatus(), equalTo(Score.FULL_STAR));
+    }
+
+    @Test
+    public void test_getTodayValue()
+    {
+        toggleRepetitions(0, 20);
+        assertThat(habit.scores.getTodayValue(), equalTo(12629351));
+    }
+
+    @Test
+    public void test_getValue()
+    {
+        toggleRepetitions(0, 20);
+
+        int expectedValues[] = { 12629351, 12266245, 11883254, 11479288, 11053198, 10603773,
+                10129735, 9629735, 9102352, 8546087, 7959357, 7340494, 6687738, 5999234, 5273023,
+                4507040, 3699107, 2846927, 1948077, 1000000 };
+
+        long current = DateHelper.getStartOfToday();
+        for(int expectedValue : expectedValues)
+        {
+            assertThat(habit.scores.getValue(current), equalTo(expectedValue));
+            current -= DateHelper.millisecondsInOneDay;
+        }
+    }
+
+    @Test
+    public void test_getAllValues_withoutGroups()
+    {
+        toggleRepetitions(0, 20);
+
+        int expectedValues[] = { 12629351, 12266245, 11883254, 11479288, 11053198, 10603773,
+                10129735, 9629735, 9102352, 8546087, 7959357, 7340494, 6687738, 5999234, 5273023,
+                4507040, 3699107, 2846927, 1948077, 1000000 };
+
+        int actualValues[] = habit.scores.getAllValues(1);
+        assertThat(actualValues, equalTo(expectedValues));
+    }
+
+    @Test
+    public void test_getAllValues_withGroups()
+    {
+        toggleRepetitions(0, 20);
+
+        int expectedValues[] = { 11434978, 7894999, 3212362 };
+
+        int actualValues[] = habit.scores.getAllValues(7);
+        assertThat(actualValues, equalTo(expectedValues));
+    }
+
+    @Test
+    public void test_writeCSV() throws IOException
+    {
+        HabitFixtures.purgeHabits();
+        Habit habit = HabitFixtures.createShortHabit();
+
+        String expectedCSV =
+                "2015-01-16,0.0519\n" +
+                "2015-01-17,0.1021\n" +
+                "2015-01-18,0.0986\n" +
+                "2015-01-19,0.0952\n" +
+                "2015-01-20,0.1439\n" +
+                "2015-01-21,0.1909\n" +
+                "2015-01-22,0.2364\n" +
+                "2015-01-23,0.2283\n" +
+                "2015-01-24,0.2205\n" +
+                "2015-01-25,0.2649\n";
+
+        StringWriter writer = new StringWriter();
+        habit.scores.writeCSV(writer);
+
+        assertThat(writer.toString(), equalTo(expectedCSV));
+    }
+
+    private void toggleRepetitions(final int from, final int to)
+    {
+        DatabaseHelper.executeAsTransaction(new DatabaseHelper.Command()
+        {
+            @Override
+            public void execute()
+            {
+                long today = DateHelper.getStartOfToday();
+                for (int i = from; i < to; i++)
+                    habit.repetitions.toggle(today - i * DateHelper.millisecondsInOneDay);
+            }
+        });
+    }
+}

app/src/androidTest/java/org/isoron/uhabits/unit/models/ScoreTest.java

@@ -0,0 +1,108 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.unit.models;
+
+import android.support.test.runner.AndroidJUnit4;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import org.isoron.uhabits.BaseTest;
+import org.isoron.uhabits.models.Checkmark;
+import org.isoron.uhabits.models.Score;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.hamcrest.Matchers.equalTo;
+import static org.junit.Assert.assertThat;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class ScoreTest extends BaseTest
+{
+    @Before
+    public void setup()
+    {
+        super.setup();
+    }
+
+    @Test
+    public void test_compute_withDailyHabit()
+    {
+        int checkmark = Checkmark.UNCHECKED;
+        assertThat(Score.compute(1, 0, checkmark), equalTo(0));
+        assertThat(Score.compute(1, 5000000, checkmark), equalTo(4740387));
+        assertThat(Score.compute(1, 10000000, checkmark), equalTo(9480775));
+        assertThat(Score.compute(1, Score.MAX_VALUE, checkmark), equalTo(18259478));
+
+        checkmark = Checkmark.CHECKED_IMPLICITLY;
+        assertThat(Score.compute(1, 0, checkmark), equalTo(0));
+        assertThat(Score.compute(1, 5000000, checkmark), equalTo(4740387));
+        assertThat(Score.compute(1, 10000000, checkmark), equalTo(9480775));
+        assertThat(Score.compute(1, Score.MAX_VALUE, checkmark), equalTo(18259478));
+
+        checkmark = Checkmark.CHECKED_EXPLICITLY;
+        assertThat(Score.compute(1, 0, checkmark), equalTo(1000000));
+        assertThat(Score.compute(1, 5000000, checkmark), equalTo(5740387));
+        assertThat(Score.compute(1, 10000000, checkmark), equalTo(10480775));
+        assertThat(Score.compute(1, Score.MAX_VALUE, checkmark), equalTo(Score.MAX_VALUE));
+    }
+
+    @Test
+    public void test_compute_withNonDailyHabit()
+    {
+        int checkmark = Checkmark.CHECKED_EXPLICITLY;
+        assertThat(Score.compute(1/3.0, 0, checkmark), equalTo(1000000));
+        assertThat(Score.compute(1/3.0, 5000000, checkmark), equalTo(5916180));
+        assertThat(Score.compute(1/3.0, 10000000, checkmark), equalTo(10832360));
+        assertThat(Score.compute(1/3.0, Score.MAX_VALUE, checkmark), equalTo(Score.MAX_VALUE));
+
+        assertThat(Score.compute(1/7.0, 0, checkmark), equalTo(1000000));
+        assertThat(Score.compute(1/7.0, 5000000, checkmark), equalTo(5964398));
+        assertThat(Score.compute(1/7.0, 10000000, checkmark), equalTo(10928796));
+        assertThat(Score.compute(1/7.0, Score.MAX_VALUE, checkmark), equalTo(Score.MAX_VALUE));
+    }
+
+    @Test
+    public void test_getStarStatus()
+    {
+        Score s = new Score();
+
+        s.score = Score.FULL_STAR_CUTOFF + 1;
+        assertThat(s.getStarStatus(), equalTo(Score.FULL_STAR));
+
+        s.score = Score.FULL_STAR_CUTOFF;
+        assertThat(s.getStarStatus(), equalTo(Score.FULL_STAR));
+
+        s.score = Score.FULL_STAR_CUTOFF - 1;
+        assertThat(s.getStarStatus(), equalTo(Score.HALF_STAR));
+        
+        s.score = Score.HALF_STAR_CUTOFF + 1;
+        assertThat(s.getStarStatus(), equalTo(Score.HALF_STAR));
+
+        s.score = Score.HALF_STAR_CUTOFF;
+        assertThat(s.getStarStatus(), equalTo(Score.HALF_STAR));
+        
+        s.score = Score.HALF_STAR_CUTOFF - 1;
+        assertThat(s.getStarStatus(), equalTo(Score.EMPTY_STAR));
+
+        s.score = 0;
+        assertThat(s.getStarStatus(), equalTo(Score.EMPTY_STAR));
+    }
+}

app/src/androidTest/java/org/isoron/uhabits/unit/tasks/ExportCSVTaskTest.java

@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.unit.tasks;
+
+import android.support.test.runner.AndroidJUnit4;
+import android.test.suitebuilder.annotation.SmallTest;
+import android.widget.ProgressBar;
+
+import org.isoron.uhabits.BaseTest;
+import org.isoron.uhabits.models.Habit;
+import org.isoron.uhabits.tasks.ExportCSVTask;
+import org.isoron.uhabits.unit.HabitFixtures;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.io.File;
+import java.util.List;
+
+import static junit.framework.Assert.assertTrue;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.nullValue;
+import static org.hamcrest.core.IsNot.not;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class ExportCSVTaskTest extends BaseTest
+{
+    @Before
+    public void setup()
+    {
+        super.setup();
+    }
+
+    @Test
+    public void testExportCSV() throws Throwable
+    {
+        HabitFixtures.createShortHabit();
+        List<Habit> habits = Habit.getAll(true);
+        ProgressBar bar = new ProgressBar(targetContext);
+
+        ExportCSVTask task = new ExportCSVTask(habits, bar);
+        task.setListener(new ExportCSVTask.Listener()
+        {
+            @Override
+            public void onExportCSVFinished(String archiveFilename)
+            {
+                assertThat(archiveFilename, is(not(nullValue())));
+
+                File f = new File(archiveFilename);
+                assertTrue(f.exists());
+                assertTrue(f.canRead());
+            }
+        });
+
+        task.execute();
+        waitForAsyncTasks();
+    }
+}

app/src/androidTest/java/org/isoron/uhabits/unit/tasks/ExportDBTaskTest.java

@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.unit.tasks;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+import android.test.suitebuilder.annotation.SmallTest;
+import android.widget.ProgressBar;
+
+import org.isoron.uhabits.BaseTest;
+import org.isoron.uhabits.tasks.ExportDBTask;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.io.File;
+
+import static junit.framework.Assert.assertTrue;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.nullValue;
+import static org.hamcrest.core.IsNot.not;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class ExportDBTaskTest extends BaseTest
+{
+    @Before
+    public void setup()
+    {
+        super.setup();
+    }
+
+    @Test
+    public void testExportCSV() throws Throwable
+    {
+        Context context = InstrumentationRegistry.getContext();
+
+        ProgressBar bar = new ProgressBar(context);
+        ExportDBTask task = new ExportDBTask(bar);
+        task.setListener(new ExportDBTask.Listener()
+        {
+            @Override
+            public void onExportDBFinished(String filename)
+            {
+                assertThat(filename, is(not(nullValue())));
+
+                File f = new File(filename);
+                assertTrue(f.exists());
+                assertTrue(f.canRead());
+            }
+        });
+
+        task.execute();
+        waitForAsyncTasks();
+    }
+}

app/src/androidTest/java/org/isoron/uhabits/unit/tasks/ImportDataTaskTest.java

@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.unit.tasks;
+
+import android.support.annotation.NonNull;
+import android.support.test.runner.AndroidJUnit4;
+import android.test.suitebuilder.annotation.SmallTest;
+import android.widget.ProgressBar;
+
+import org.isoron.uhabits.BaseTest;
+import org.isoron.uhabits.helpers.DatabaseHelper;
+import org.isoron.uhabits.tasks.ImportDataTask;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.equalTo;
+import static org.junit.Assert.fail;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class ImportDataTaskTest extends BaseTest
+{
+    private File baseDir;
+
+    @Before
+    public void setup()
+    {
+        super.setup();
+
+        baseDir = DatabaseHelper.getFilesDir("Backups");
+        if(baseDir == null) fail("baseDir should not be null");
+    }
+
+    private void copyAssetToFile(String assetPath, File dst) throws IOException
+    {
+        InputStream in = testContext.getAssets().open(assetPath);
+        DatabaseHelper.copy(in, dst);
+    }
+
+    private void assertTaskResult(final int expectedResult, String assetFilename) throws Throwable
+    {
+        ImportDataTask task = createTask(assetFilename);
+
+        task.setListener(new ImportDataTask.Listener()
+        {
+            @Override
+            public void onImportFinished(int result)
+            {
+                assertThat(result, equalTo(expectedResult));
+            }
+        });
+
+        task.execute();
+        waitForAsyncTasks();
+    }
+
+    @NonNull
+    private ImportDataTask createTask(String assetFilename) throws IOException
+    {
+        ProgressBar bar = new ProgressBar(targetContext);
+        File file = new File(String.format("%s/%s", baseDir.getPath(), assetFilename));
+        copyAssetToFile(assetFilename, file);
+
+        return new ImportDataTask(file, bar);
+    }
+
+    @Test
+    public void testImportInvalidData() throws Throwable
+    {
+        assertTaskResult(ImportDataTask.NOT_RECOGNIZED, "icon.png");
+    }
+
+    @Test
+    public void testImportValidData() throws Throwable
+    {
+        assertTaskResult(ImportDataTask.SUCCESS, "loop.db");
+    }
+}

app/src/androidTest/java/org/isoron/uhabits/unit/views/CheckmarkViewTest.java

@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.unit.views;
+
+import android.support.test.runner.AndroidJUnit4;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import org.isoron.uhabits.helpers.DateHelper;
+import org.isoron.uhabits.models.Habit;
+import org.isoron.uhabits.unit.HabitFixtures;
+import org.isoron.uhabits.views.CheckmarkView;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.io.IOException;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class CheckmarkViewTest extends ViewTest
+{
+    private CheckmarkView view;
+    private Habit habit;
+
+    @Before
+    public void setup()
+    {
+        super.setup();
+
+        habit = HabitFixtures.createShortHabit();
+        view = new CheckmarkView(targetContext);
+        view.setHabit(habit);
+        refreshData(view);
+        measureView(dpToPixels(100), dpToPixels(200), view);
+    }
+
+    @Test
+    public void testRender_checked() throws IOException
+    {
+        assertRenders(view, "CheckmarkView/checked.png");
+    }
+
+    @Test
+    public void testRender_unchecked() throws IOException
+    {
+        habit.repetitions.toggle(DateHelper.getStartOfToday());
+        view.refreshData();
+
+        assertRenders(view, "CheckmarkView/unchecked.png");
+    }
+
+    @Test
+    public void testRender_implicitlyChecked() throws IOException
+    {
+        long today = DateHelper.getStartOfToday();
+        long day = DateHelper.millisecondsInOneDay;
+        habit.repetitions.toggle(today);
+        habit.repetitions.toggle(today - day);
+        habit.repetitions.toggle(today - 2 * day);
+        view.refreshData();
+
+        assertRenders(view, "CheckmarkView/implicitly_checked.png");
+    }
+
+    @Test
+    public void testRender_largeSize() throws IOException
+    {
+        measureView(dpToPixels(300), dpToPixels(300), view);
+        assertRenders(view, "CheckmarkView/large_size.png");
+    }
+}

app/src/androidTest/java/org/isoron/uhabits/unit/views/HabitFrequencyViewTest.java

@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.unit.views;
+
+import android.support.test.runner.AndroidJUnit4;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import org.isoron.uhabits.models.Habit;
+import org.isoron.uhabits.unit.HabitFixtures;
+import org.isoron.uhabits.views.HabitFrequencyView;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class HabitFrequencyViewTest extends ViewTest
+{
+    private HabitFrequencyView view;
+
+    @Before
+    public void setup()
+    {
+        super.setup();
+
+        HabitFixtures.purgeHabits();
+        Habit habit = HabitFixtures.createLongHabit();
+
+        view = new HabitFrequencyView(targetContext);
+        view.setHabit(habit);
+        refreshData(view);
+        measureView(dpToPixels(300), dpToPixels(100), view);
+    }
+
+    @Test
+    public void testRender() throws Throwable
+    {
+        assertRenders(view, "HabitFrequencyView/render.png");
+    }
+
+    @Test
+    public void testRender_withTransparentBackground() throws Throwable
+    {
+        view.setIsBackgroundTransparent(true);
+        assertRenders(view, "HabitFrequencyView/renderTransparent.png");
+    }
+
+    @Test
+    public void testRender_withDifferentSize() throws Throwable
+    {
+        measureView(dpToPixels(200), dpToPixels(200), view);
+        assertRenders(view, "HabitFrequencyView/renderDifferentSize.png");
+    }
+
+    @Test
+    public void testRender_withDataOffset() throws Throwable
+    {
+        view.onScroll(null, null, -dpToPixels(150), 0);
+        view.invalidate();
+
+        assertRenders(view, "HabitFrequencyView/renderDataOffset.png");
+    }
+}

app/src/androidTest/java/org/isoron/uhabits/unit/views/HabitHistoryViewTest.java

@@ -0,0 +1,125 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.unit.views;
+
+import android.support.test.runner.AndroidJUnit4;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import org.isoron.uhabits.helpers.DateHelper;
+import org.isoron.uhabits.models.Habit;
+import org.isoron.uhabits.unit.HabitFixtures;
+import org.isoron.uhabits.views.HabitHistoryView;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static junit.framework.Assert.assertFalse;
+import static junit.framework.Assert.assertTrue;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.equalTo;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class HabitHistoryViewTest extends ViewTest
+{
+    private Habit habit;
+    private HabitHistoryView view;
+
+    @Before
+    public void setup()
+    {
+        super.setup();
+
+        HabitFixtures.purgeHabits();
+        habit = HabitFixtures.createLongHabit();
+
+        view = new HabitHistoryView(targetContext);
+        view.setHabit(habit);
+        measureView(dpToPixels(300), dpToPixels(100), view);
+        refreshData(view);
+    }
+
+    @Test
+    public void testRender() throws Throwable
+    {
+        assertRenders(view, "HabitHistoryView/render.png");
+    }
+
+    @Test
+    public void testRender_withTransparentBackground() throws Throwable
+    {
+        view.setIsBackgroundTransparent(true);
+        assertRenders(view, "HabitHistoryView/renderTransparent.png");
+    }
+
+    @Test
+    public void testRender_withDifferentSize() throws Throwable
+    {
+        measureView(dpToPixels(200), dpToPixels(200), view);
+        assertRenders(view, "HabitHistoryView/renderDifferentSize.png");
+    }
+
+    @Test
+    public void testRender_withDataOffset() throws Throwable
+    {
+        view.onScroll(null, null, -dpToPixels(150), 0);
+        view.invalidate();
+
+        assertRenders(view, "HabitHistoryView/renderDataOffset.png");
+    }
+
+    @Test
+    public void tapDate_withEditableView() throws Throwable
+    {
+        view.setIsEditable(true);
+        tap(view, 270, 30);
+        waitForAsyncTasks();
+
+        long today = DateHelper.getStartOfToday();
+        assertFalse(habit.repetitions.contains(today));
+    }
+
+    @Test
+    public void tapDate_atInvalidLocations() throws Throwable
+    {
+        int expectedCheckmarkValues[] = habit.checkmarks.getAllValues();
+
+        view.setIsEditable(true);
+        tap(view, 45, 5); // header
+        tap(view, 270, 43); // tomorrow's square
+        tap(view, 280, 30); // right axis
+        waitForAsyncTasks();
+
+        int actualCheckmarkValues[] = habit.checkmarks.getAllValues();
+        assertThat(actualCheckmarkValues, equalTo(expectedCheckmarkValues));
+    }
+
+    @Test
+    public void tapDate_withReadOnlyView() throws Throwable
+    {
+        view.setIsEditable(false);
+        tap(view, 270, 30);
+        waitForAsyncTasks();
+
+        long today = DateHelper.getStartOfToday();
+        assertTrue(habit.repetitions.contains(today));
+    }
+
+}

app/src/androidTest/java/org/isoron/uhabits/unit/views/HabitScoreViewTest.java

@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.unit.views;
+
+import android.support.test.runner.AndroidJUnit4;
+import android.test.suitebuilder.annotation.SmallTest;
+import android.util.Log;
+
+import org.isoron.uhabits.models.Habit;
+import org.isoron.uhabits.unit.HabitFixtures;
+import org.isoron.uhabits.views.HabitScoreView;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class HabitScoreViewTest extends ViewTest
+{
+    private Habit habit;
+    private HabitScoreView view;
+
+    @Before
+    public void setup()
+    {
+        super.setup();
+
+        HabitFixtures.purgeHabits();
+        habit = HabitFixtures.createLongHabit();
+
+        view = new HabitScoreView(targetContext);
+        view.setHabit(habit);
+        view.setBucketSize(7);
+        refreshData(view);
+        measureView(dpToPixels(300), dpToPixels(100), view);
+    }
+
+    @Test
+    public void testRender() throws Throwable
+    {
+        Log.d("HabitScoreViewTest", String.format("height=%d", dpToPixels(100)));
+        assertRenders(view, "HabitScoreView/render.png");
+    }
+
+    @Test
+    public void testRender_withTransparentBackground() throws Throwable
+    {
+        view.setIsBackgroundTransparent(true);
+        assertRenders(view, "HabitScoreView/renderTransparent.png");
+    }
+
+    @Test
+    public void testRender_withDifferentSize() throws Throwable
+    {
+        measureView(dpToPixels(200), dpToPixels(200), view);
+        assertRenders(view, "HabitScoreView/renderDifferentSize.png");
+    }
+
+    @Test
+    public void testRender_withDataOffset() throws Throwable
+    {
+        view.onScroll(null, null, -dpToPixels(150), 0);
+        view.invalidate();
+
+        assertRenders(view, "HabitScoreView/renderDataOffset.png");
+    }
+
+    @Test
+    public void testRender_withMonthlyBucket() throws Throwable
+    {
+        view.setBucketSize(30);
+        view.refreshData();
+        view.invalidate();
+
+        assertRenders(view, "HabitScoreView/renderMonthly.png");
+    }
+
+    @Test
+    public void testRender_withYearlyBucket() throws Throwable
+    {
+        view.setBucketSize(365);
+        view.refreshData();
+        view.invalidate();
+
+        assertRenders(view, "HabitScoreView/renderYearly.png");
+    }
+}

app/src/androidTest/java/org/isoron/uhabits/unit/views/HabitStreakViewTest.java

@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.unit.views;
+
+import android.support.test.runner.AndroidJUnit4;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import org.isoron.uhabits.models.Habit;
+import org.isoron.uhabits.unit.HabitFixtures;
+import org.isoron.uhabits.views.HabitStreakView;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class HabitStreakViewTest extends ViewTest
+{
+    private HabitStreakView view;
+
+    @Before
+    public void setup()
+    {
+        super.setup();
+
+        HabitFixtures.purgeHabits();
+        Habit habit = HabitFixtures.createLongHabit();
+
+        view = new HabitStreakView(targetContext);
+        measureView(dpToPixels(300), dpToPixels(100), view);
+
+        view.setHabit(habit);
+        refreshData(view);
+    }
+
+    @Test
+    public void testRender() throws Throwable
+    {
+        assertRenders(view, "HabitStreakView/render.png");
+    }
+
+    @Test
+    public void testRender_withTransparentBackground() throws Throwable
+    {
+        view.setIsBackgroundTransparent(true);
+        assertRenders(view, "HabitStreakView/renderTransparent.png"); 
+    }
+
+    @Test
+    public void testRender_withSmallSize() throws Throwable
+    {
+        measureView(dpToPixels(100), dpToPixels(100), view);
+        refreshData(view);
+
+        assertRenders(view, "HabitStreakView/renderSmallSize.png");
+    }
+}

app/src/androidTest/java/org/isoron/uhabits/unit/views/NumberViewTest.java

@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.unit.views;
+
+import android.support.test.runner.AndroidJUnit4;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import org.isoron.uhabits.R;
+import org.isoron.uhabits.helpers.ColorHelper;
+import org.isoron.uhabits.views.NumberView;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.io.IOException;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class NumberViewTest extends ViewTest
+{
+    private NumberView view;
+
+    @Before
+    public void setup()
+    {
+        super.setup();
+
+        view = new NumberView(targetContext);
+        view.setLabel("Hello world");
+        view.setNumber(31);
+        view.setColor(ColorHelper.palette[0]);
+        measureView(dpToPixels(100), dpToPixels(100), view);
+    }
+
+    @Test
+    public void testRender_base() throws IOException
+    {
+        assertRenders(view, "NumberView/render.png");
+    }
+
+    @Test
+    public void testRender_withLongLabel() throws IOException
+    {
+        view.setLabel("The quick brown fox jumps over the lazy fox");
+
+        measureView(dpToPixels(100), dpToPixels(100), view);
+        assertRenders(view, "NumberView/renderLongLabel.png");
+    }
+
+    @Test
+    public void testRender_withDifferentParams() throws IOException
+    {
+        view.setNumber(500);
+        view.setColor(ColorHelper.palette[5]);
+        view.setTextSize(targetContext.getResources().getDimension(R.dimen.tinyTextSize));
+
+        measureView(dpToPixels(200), dpToPixels(200), view);
+        assertRenders(view, "NumberView/renderDifferentParams.png");
+    }
+}

app/src/androidTest/java/org/isoron/uhabits/unit/views/RingViewTest.java

@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.unit.views;
+
+import android.support.test.runner.AndroidJUnit4;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import org.isoron.uhabits.helpers.ColorHelper;
+import org.isoron.uhabits.views.RingView;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.io.IOException;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class RingViewTest extends ViewTest
+{
+    private RingView view;
+
+    @Before
+    public void setup()
+    {
+        super.setup();
+
+        view = new RingView(targetContext);
+        view.setLabel("Hello world");
+        view.setPercentage(0.6f);
+        view.setColor(ColorHelper.palette[0]);
+        view.setMaxDiameter(dpToPixels(100));
+    }
+
+    @Test
+    public void testRender_base() throws IOException
+    {
+        measureView(dpToPixels(100), dpToPixels(100), view);
+        assertRenders(view, "RingView/render.png");
+    }
+
+    @Test
+    public void testRender_withLongLabel() throws IOException
+    {
+        view.setLabel("The quick brown fox jumps over the lazy fox");
+
+        measureView(dpToPixels(100), dpToPixels(100), view);
+        assertRenders(view, "RingView/renderLongLabel.png");
+    }
+
+    @Test
+    public void testRender_withDifferentParams() throws IOException
+    {
+        view.setLabel("Habit Strength");
+        view.setPercentage(0.25f);
+        view.setMaxDiameter(dpToPixels(50));
+        view.setColor(ColorHelper.palette[5]);
+
+        measureView(dpToPixels(200), dpToPixels(200), view);
+        assertRenders(view, "RingView/renderDifferentParams.png");
+    }
+}

app/src/androidTest/java/org/isoron/uhabits/unit/views/ViewTest.java

@@ -0,0 +1,226 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.unit.views;
+
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.os.SystemClock;
+import android.view.GestureDetector;
+import android.view.MotionEvent;
+import android.view.View;
+
+import org.isoron.uhabits.BaseTest;
+import org.isoron.uhabits.helpers.DatabaseHelper;
+import org.isoron.uhabits.helpers.UIHelper;
+import org.isoron.uhabits.tasks.BaseTask;
+import org.isoron.uhabits.views.HabitDataView;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+
+import static junit.framework.Assert.fail;
+
+public class ViewTest extends BaseTest
+{
+    protected static final double SIMILARITY_CUTOFF = 0.09;
+    public static final int HISTOGRAM_BIN_SIZE = 8;
+
+    protected void measureView(int width, int height, View view)
+    {
+        int specWidth = View.MeasureSpec.makeMeasureSpec(width, View.MeasureSpec.EXACTLY);
+        int specHeight = View.MeasureSpec.makeMeasureSpec(height, View.MeasureSpec.EXACTLY);
+
+        view.measure(specWidth, specHeight);
+        view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight());
+    }
+
+    protected void assertRenders(View view, String expectedImagePath) throws IOException
+    {
+        StringBuilder errorMessage = new StringBuilder();
+        expectedImagePath = getVersionedViewAssetPath(expectedImagePath);
+
+        view.setDrawingCacheEnabled(true);
+        view.buildDrawingCache();
+        Bitmap actual = view.getDrawingCache();
+        Bitmap expected = getBitmapFromAssets(expectedImagePath);
+
+        int width = actual.getWidth();
+        int height = actual.getHeight();
+        Bitmap scaledExpected = Bitmap.createScaledBitmap(expected, width, height, true);
+
+        double distance;
+        boolean similarEnough = true;
+
+        if ((distance = compareHistograms(getHistogram(actual), getHistogram(scaledExpected))) > SIMILARITY_CUTOFF)
+        {
+            similarEnough = false;
+            errorMessage.append(String.format(
+                    "Rendered image has wrong histogram (distance=%f). ",
+                    distance));
+        }
+
+        if(!similarEnough)
+        {
+            saveBitmap(expectedImagePath, ".scaledExpected", scaledExpected);
+            String path = saveBitmap(expectedImagePath, ".actual", actual);
+            errorMessage.append(String.format("Actual rendered image " + "saved to %s", path));
+            fail(errorMessage.toString());
+        }
+
+        actual.recycle();
+        expected.recycle();
+        scaledExpected.recycle();
+    }
+
+    private Bitmap getBitmapFromAssets(String path) throws IOException
+    {
+        InputStream stream = testContext.getAssets().open(path);
+        return BitmapFactory.decodeStream(stream);
+    }
+
+    private String getVersionedViewAssetPath(String path)
+    {
+        String result = null;
+
+        if (android.os.Build.VERSION.SDK_INT >= 21)
+        {
+            try
+            {
+                String vpath = "views-v21/" + path;
+                testContext.getAssets().open(vpath);
+                result = vpath;
+            }
+            catch (IOException e)
+            {
+                // ignored
+            }
+        }
+
+        if(result == null)
+            result = "views/" + path;
+
+        return result;
+    }
+
+    private String saveBitmap(String filename, String suffix, Bitmap bitmap)
+            throws IOException
+    {
+        File dir = DatabaseHelper.getSDCardDir("test-screenshots");
+        if(dir == null) dir = DatabaseHelper.getFilesDir("test-screenshots");
+        if(dir == null) throw new RuntimeException("Could not find suitable dir for screenshots");
+
+        filename = filename.replaceAll("\\.png$", suffix + ".png");
+        String absolutePath = String.format("%s/%s", dir.getAbsolutePath(), filename);
+
+        File parent = new File(absolutePath).getParentFile();
+        if(!parent.exists() && !parent.mkdirs())
+            throw new RuntimeException(String.format("Could not create dir: %s",
+                    parent.getAbsolutePath()));
+
+        FileOutputStream out = new FileOutputStream(absolutePath);
+        bitmap.compress(Bitmap.CompressFormat.PNG, 100, out);
+
+        return absolutePath;
+    }
+
+    private int[][] getHistogram(Bitmap bitmap)
+    {
+        int histogram[][] = new int[4][256 / HISTOGRAM_BIN_SIZE];
+
+        for(int x = 0; x < bitmap.getWidth(); x++)
+        {
+            for(int y = 0; y < bitmap.getHeight(); y++)
+            {
+                int color = bitmap.getPixel(x, y);
+                int[] argb = new int[]{
+                        (color >> 24) & 0xff, //alpha
+                        (color >> 16) & 0xff, //red
+                        (color >>  8) & 0xff, //green
+                        (color      ) & 0xff  //blue
+                };
+
+                histogram[0][argb[0] / HISTOGRAM_BIN_SIZE]++;
+                histogram[1][argb[1] / HISTOGRAM_BIN_SIZE]++;
+                histogram[2][argb[2] / HISTOGRAM_BIN_SIZE]++;
+                histogram[3][argb[3] / HISTOGRAM_BIN_SIZE]++;
+            }
+        }
+
+        return histogram;
+    }
+
+    private double compareHistograms(int[][] actualHistogram, int[][] expectedHistogram)
+    {
+        long diff = 0;
+        long total = 0;
+
+        for(int i = 0; i < 256 / HISTOGRAM_BIN_SIZE; i ++)
+        {
+            diff += Math.abs(actualHistogram[0][i] - expectedHistogram[0][i]);
+            diff += Math.abs(actualHistogram[1][i] - expectedHistogram[1][i]);
+            diff += Math.abs(actualHistogram[2][i] - expectedHistogram[2][i]);
+            diff += Math.abs(actualHistogram[3][i] - expectedHistogram[3][i]);
+
+            total += actualHistogram[0][i];
+            total += actualHistogram[1][i];
+            total += actualHistogram[2][i];
+            total += actualHistogram[3][i];
+        }
+
+        return (double) diff / total / 2;
+    }
+
+    protected int dpToPixels(int dp)
+    {
+        return (int) UIHelper.dpToPixels(targetContext, dp);
+    }
+
+    protected void tap(GestureDetector.OnGestureListener view, int x, int y) throws InterruptedException
+    {
+        long now = SystemClock.uptimeMillis();
+        MotionEvent e = MotionEvent.obtain(now, now, MotionEvent.ACTION_UP, dpToPixels(x),
+                dpToPixels(y), 0);
+        view.onSingleTapUp(e);
+        e.recycle();
+    }
+
+    protected void refreshData(final HabitDataView view)
+    {
+        new BaseTask()
+        {
+            @Override
+            protected void doInBackground()
+            {
+                view.refreshData();
+            }
+        }.execute();
+
+        try
+        {
+            waitForAsyncTasks();
+        }
+        catch (Exception e)
+        {
+            throw new RuntimeException("Time out");
+        }
+    }
+}

app/src/debug/AndroidManifest.xml

@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+  ~
+  ~ This file is part of Loop Habit Tracker.
+  ~
+  ~ Loop Habit Tracker is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by the
+  ~ Free Software Foundation, either version 3 of the License, or (at your
+  ~ option) any later version.
+  ~
+  ~ Loop Habit Tracker is distributed in the hope that it will be useful, but
+  ~ WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+  ~ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+  ~ more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along
+  ~ with this program. If not, see <http://www.gnu.org/licenses/>.
+  -->
+<manifest
+    package="org.isoron.uhabits"
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <uses-permission android:name="android.permission.SET_ANIMATION_SCALE"/>
+    <uses-permission android:name="android.permission.DISABLE_KEYGUARD"/>
+    <uses-permission android:name="android.permission.WAKE_LOCK"/>
+
+    <uses-permission
+        android:name="android.permission.READ_EXTERNAL_STORAGE"
+        tools:replace="maxSdkVersion"
+        android:maxSdkVersion="99" />
+
+    <uses-permission
+        android:name="android.permission.WRITE_EXTERNAL_STORAGE"
+        tools:replace="maxSdkVersion"
+        android:maxSdkVersion="99" />
+
+</manifest>

app/src/main/AndroidManifest.xml

@@ -21,8 +21,8 @@
 <manifest
     package="org.isoron.uhabits"
     xmlns:android="http://schemas.android.com/apk/res/android"
-    android:versionCode="13"
-    android:versionName="1.3.3">
+    android:versionCode="14"
+    android:versionName="1.4.0">
 
     <uses-permission android:name="android.permission.VIBRATE"/>
 
@@ -35,7 +35,7 @@
         android:maxSdkVersion="18" />
 
     <application
-        android:name="com.activeandroid.app.Application"
+        android:name="HabitsApplication"
         android:allowBackup="true"
         android:backupAgent=".HabitsBackupAgent"
         android:icon="@mipmap/ic_launcher"
@@ -43,12 +43,6 @@
         android:theme="@style/AppBaseTheme"
         android:supportsRtl="true">
 
-        <meta-data
-            android:name="AA_DB_NAME"
-            android:value="uhabits.db"/>
-        <meta-data
-            android:name="AA_DB_VERSION"
-            android:value="12"/>
         <meta-data
             android:name="com.google.android.backup.api_key"
             android:value="AEdPqrEAAAAI6aeWncbnMNo8E5GWeZ44dlc5cQ7tCROwFhOtiw"/>

app/src/main/assets/migrations/13.sql

@@ -0,0 +1,4 @@
+create index idx_score_habit_timestamp on score(habit, timestamp);
+create index idx_checkmark_habit_timestamp on checkmarks(habit, timestamp);
+create index idx_repetitions_habit_timestamp on repetitions(habit, timestamp);
+create index idx_streak_habit_end on streak(habit, end);

app/src/main/java/org/isoron/helpers/DialogHelper.java

@@ -1,95 +0,0 @@
-/*
- * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
- *
- * This file is part of Loop Habit Tracker.
- *
- * Loop Habit Tracker is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by the
- * Free Software Foundation, either version 3 of the License, or (at your
- * option) any later version.
- *
- * Loop Habit Tracker is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package org.isoron.helpers;
-
-import android.content.Context;
-import android.content.SharedPreferences;
-import android.content.res.Resources;
-import android.graphics.Typeface;
-import android.os.Vibrator;
-import android.preference.PreferenceManager;
-import android.util.AttributeSet;
-import android.util.DisplayMetrics;
-import android.view.View;
-import android.view.inputmethod.InputMethodManager;
-
-import org.isoron.uhabits.BuildConfig;
-
-public abstract class DialogHelper
-{
-
-    public static final String ISORON_NAMESPACE = "http://isoron.org/android";
-    private static Typeface fontawesome;
-
-    public interface OnSavedListener
-    {
-        void onSaved(Command command, Object savedObject);
-    }
-
-    public static void showSoftKeyboard(View view)
-    {
-        InputMethodManager imm = (InputMethodManager) view.getContext()
-                .getSystemService(Context.INPUT_METHOD_SERVICE);
-        imm.showSoftInput(view, InputMethodManager.SHOW_IMPLICIT);
-    }
-
-    public static void vibrate(Context context, int duration)
-    {
-        Vibrator vb = (Vibrator) context.getSystemService(Context.VIBRATOR_SERVICE);
-        vb.vibrate(duration);
-    }
-
-
-    public static void incrementLaunchCount(Context context)
-    {
-        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
-        int count = prefs.getInt("launch_count", 0);
-        prefs.edit().putInt("launch_count", count + 1).apply();
-    }
-
-    public static void updateLastAppVersion(Context context)
-    {
-        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
-        prefs.edit().putInt("last_version", BuildConfig.VERSION_CODE).apply();
-    }
-
-    public static int getLaunchCount(Context context)
-    {
-        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
-        return prefs.getInt("launch_count", 0);
-    }
-
-    public static String getAttribute(Context context, AttributeSet attrs, String name)
-    {
-        int resId = attrs.getAttributeResourceValue(ISORON_NAMESPACE, name, 0);
-
-        if(resId != 0)
-            return context.getResources().getString(resId);
-        else
-            return attrs.getAttributeValue(ISORON_NAMESPACE, name);
-    }
-
-    public static float dpToPixels(Context context, float dp)
-    {
-        Resources resources = context.getResources();
-        DisplayMetrics metrics = resources.getDisplayMetrics();
-        return dp * (metrics.densityDpi / DisplayMetrics.DENSITY_DEFAULT);
-    }
-}

app/src/main/java/org/isoron/uhabits/AboutActivity.java

@@ -28,7 +28,7 @@ import android.os.Bundle;
 import android.view.View;
 import android.widget.TextView;
 
-import org.isoron.helpers.ColorHelper;
+import org.isoron.uhabits.helpers.ColorHelper;
 
 public class AboutActivity extends Activity implements View.OnClickListener
 {
@@ -68,7 +68,7 @@ public class AboutActivity extends Activity implements View.OnClickListener
             {
                 Intent intent = new Intent();
                 intent.setAction(Intent.ACTION_VIEW);
-                intent.setData(Uri.parse("market://details?id=org.isoron.uhabits"));
+                intent.setData(Uri.parse(getString(R.string.playStoreURL)));
                 startActivity(intent);
                 break;
             }
@@ -77,8 +77,7 @@ public class AboutActivity extends Activity implements View.OnClickListener
             {
                 Intent intent = new Intent();
                 intent.setAction(Intent.ACTION_SENDTO);
-                intent.setData(Uri.parse("mailto:isoron+habits@gmail.com?" +
-                                "subject=Feedback%20about%20Loop%20Habit%20Tracker"));
+                intent.setData(Uri.parse(getString(R.string.feedbackURL)));
                 startActivity(intent);
                 break;
             }
@@ -87,7 +86,7 @@ public class AboutActivity extends Activity implements View.OnClickListener
             {
                 Intent intent = new Intent();
                 intent.setAction(Intent.ACTION_VIEW);
-                intent.setData(Uri.parse("https://github.com/iSoron/uhabits"));
+                intent.setData(Uri.parse(getString(R.string.sourceCodeURL)));
                 startActivity(intent);
                 break;
             }

app/src/main/java/org/isoron/uhabits/BaseActivity.java

@@ -17,7 +17,7 @@
  * with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-package org.isoron.helpers;
+package org.isoron.uhabits;
 
 import android.app.Activity;
 import android.app.backup.BackupManager;
@@ -25,11 +25,11 @@ import android.os.AsyncTask;
 import android.os.Bundle;
 import android.widget.Toast;
 
-import org.isoron.uhabits.R;
+import org.isoron.uhabits.commands.Command;
 
 import java.util.LinkedList;
 
-abstract public class ReplayableActivity extends Activity
+abstract public class BaseActivity extends Activity implements Thread.UncaughtExceptionHandler
 {
     private static int MAX_UNDO_LEVEL = 15;
 
@@ -37,11 +37,16 @@ abstract public class ReplayableActivity extends Activity
     private LinkedList<Command> redoList;
     private Toast toast;
 
+    Thread.UncaughtExceptionHandler androidExceptionHandler;
+
     @Override
     protected void onCreate(Bundle savedInstanceState)
     {
         super.onCreate(savedInstanceState);
 
+        androidExceptionHandler = Thread.getDefaultUncaughtExceptionHandler();
+        Thread.setDefaultUncaughtExceptionHandler(this);
+
         undoList = new LinkedList<>();
         redoList = new LinkedList<>();
     }
@@ -103,7 +108,7 @@ abstract public class ReplayableActivity extends Activity
             @Override
             protected void onPostExecute(Void aVoid)
             {
-                ReplayableActivity.this.onPostExecuteCommand(refreshKey);
+                BaseActivity.this.onPostExecuteCommand(refreshKey);
                 BackupManager.dataChanged("org.isoron.uhabits");
             }
         }.execute();
@@ -115,4 +120,23 @@ abstract public class ReplayableActivity extends Activity
     public void onPostExecuteCommand(Long refreshKey)
     {
     }
+
+    @Override
+    public void uncaughtException(Thread thread, Throwable ex)
+    {
+        try
+        {
+            ex.printStackTrace();
+            HabitsApplication.generateLogFile();
+        }
+        catch(Exception e)
+        {
+            // ignored
+        }
+
+        if(androidExceptionHandler != null)
+            androidExceptionHandler.uncaughtException(thread, ex);
+        else
+            System.exit(1);
+    }
 }

app/src/main/java/org/isoron/uhabits/HabitBroadcastReceiver.java

@@ -36,9 +36,11 @@ import android.preference.PreferenceManager;
 import android.support.v4.app.NotificationCompat;
 import android.support.v4.content.LocalBroadcastManager;
 
-import org.isoron.helpers.DateHelper;
+import org.isoron.uhabits.helpers.DateHelper;
 import org.isoron.uhabits.helpers.ReminderHelper;
+import org.isoron.uhabits.models.Checkmark;
 import org.isoron.uhabits.models.Habit;
+import org.isoron.uhabits.tasks.BaseTask;
 
 import java.util.Date;
 
@@ -124,11 +126,7 @@ public class HabitBroadcastReceiver extends BroadcastReceiver
 
     private void dismissAllHabits()
     {
-        for (Habit h : Habit.getHighlightedHabits())
-        {
-            h.highlight = 0;
-            h.save();
-        }
+
     }
 
     private void dismissNotification(Context context, Long habitId)
@@ -141,19 +139,29 @@ public class HabitBroadcastReceiver extends BroadcastReceiver
     }
 
 
-    private void createNotification(Context context, Intent intent)
+    private void createNotification(final Context context, final Intent intent)
     {
-        Uri data = intent.getData();
-        Habit habit = Habit.get(ContentUris.parseId(data));
-        Long timestamp = intent.getLongExtra("timestamp", DateHelper.getStartOfToday());
-        Long reminderTime = intent.getLongExtra("reminderTime", DateHelper.getStartOfToday());
+        final Uri data = intent.getData();
+        final Habit habit = Habit.get(ContentUris.parseId(data));
+        final Long timestamp = intent.getLongExtra("timestamp", DateHelper.getStartOfToday());
+        final Long reminderTime = intent.getLongExtra("reminderTime", DateHelper.getStartOfToday());
 
         if (habit == null) return;
-        if (habit.repetitions.hasImplicitRepToday()) return;
 
-        habit.highlight = 1;
-        habit.save();
+        new BaseTask()
+        {
+            int todayValue;
 
+            @Override
+            protected void doInBackground()
+            {
+                todayValue = habit.checkmarks.getTodayValue();
+            }
+
+            @Override
+            protected void onPostExecute(Void aVoid)
+            {
+                if (todayValue != Checkmark.UNCHECKED) return;
                 if (!checkWeekday(intent, habit)) return;
 
                 // Check if reminder has been turned off after alarm was scheduled
@@ -197,6 +205,10 @@ public class HabitBroadcastReceiver extends BroadcastReceiver
 
                 int notificationId = (int) (habit.getId() % Integer.MAX_VALUE);
                 notificationManager.notify(notificationId, notification);
+
+                super.onPostExecute(aVoid);
+            }
+        }.execute();
     }
 
     public static PendingIntent buildSnoozeIntent(Context context, Habit habit)
@@ -225,6 +237,13 @@ public class HabitBroadcastReceiver extends BroadcastReceiver
         return PendingIntent.getBroadcast(context, 0, deleteIntent, 0);
     }
 
+    public static PendingIntent buildViewHabitIntent(Context context, Habit habit)
+    {
+        Intent intent = new Intent(context, ShowHabitActivity.class);
+        intent.setData(Uri.parse("content://org.isoron.uhabits/habit/" + habit.getId()));
+        return PendingIntent.getActivity(context, 0, intent, 0);
+    }
+
     private boolean checkWeekday(Intent intent, Habit habit)
     {
         Long timestamp = intent.getLongExtra("timestamp", DateHelper.getStartOfToday());

app/src/main/java/org/isoron/uhabits/HabitsApplication.java

@@ -0,0 +1,151 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits;
+
+import android.app.Application;
+import android.content.Context;
+import android.os.Environment;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.view.WindowManager;
+
+import com.activeandroid.ActiveAndroid;
+
+import org.isoron.uhabits.helpers.DatabaseHelper;
+import org.isoron.uhabits.helpers.DateHelper;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.InputStreamReader;
+
+public class HabitsApplication extends Application
+{
+    @Nullable
+    private static Context context;
+
+    public static boolean isTestMode()
+    {
+        try
+        {
+            if(context != null)
+                context.getClassLoader().loadClass("org.isoron.uhabits.unit.models.HabitTest");
+            return true;
+        }
+        catch (final Exception e)
+        {
+            return false;
+        }
+    }
+
+    @Nullable
+    public static Context getContext()
+    {
+        return context;
+    }
+
+    @Override
+    public void onCreate()
+    {
+        super.onCreate();
+        HabitsApplication.context = this;
+
+        if (isTestMode())
+        {
+            File db = DatabaseHelper.getDatabaseFile();
+            if(db.exists()) db.delete();
+        }
+
+        DatabaseHelper.initializeActiveAndroid();
+    }
+
+    @Override
+    public void onTerminate()
+    {
+        HabitsApplication.context = null;
+        ActiveAndroid.dispose();
+        super.onTerminate();
+    }
+
+    public static String getLogcat() throws IOException
+    {
+        StringBuilder builder = new StringBuilder();
+
+        String[] command = new String[] { "logcat", "-d"};
+        Process process = Runtime.getRuntime().exec(command);
+
+        InputStreamReader in = new InputStreamReader(process.getInputStream());
+        BufferedReader bufferedReader = new BufferedReader(in);
+
+        String line;
+        while ((line = bufferedReader.readLine()) != null)
+        {
+            builder.append(line);
+            builder.append('\n');
+        }
+
+        return builder.toString();
+    }
+
+    public static String getDeviceInfo()
+    {
+        if(context == null) return "";
+
+        StringBuilder b = new StringBuilder();
+        WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
+
+        b.append(String.format("App Version Name: %s\n", BuildConfig.VERSION_NAME));
+        b.append(String.format("App Version Code: %s\n", BuildConfig.VERSION_CODE));
+        b.append(String.format("OS Version: %s (%s)\n", System.getProperty("os.version"),
+                android.os.Build.VERSION.INCREMENTAL));
+        b.append(String.format("OS API Level: %s\n", android.os.Build.VERSION.SDK));
+        b.append(String.format("Device: %s\n", android.os.Build.DEVICE));
+        b.append(String.format("Model (Product): %s (%s)\n", android.os.Build.MODEL,
+                android.os.Build.PRODUCT));
+        b.append(String.format("Manufacturer: %s\n", android.os.Build.MANUFACTURER));
+        b.append(String.format("Other tags: %s\n", android.os.Build.TAGS));
+        b.append(String.format("Screen Width: %s\n", wm.getDefaultDisplay().getWidth()));
+        b.append(String.format("Screen Height: %s\n", wm.getDefaultDisplay().getHeight()));
+        b.append(String.format("SD Card state: %s\n\n", Environment.getExternalStorageState()));
+
+        return b.toString();
+    }
+
+    @NonNull
+    public static File generateLogFile() throws IOException
+    {
+        String logcat = getLogcat();
+        String deviceInfo = getDeviceInfo();
+        String date = DateHelper.getBackupDateFormat().format(DateHelper.getLocalTime());
+
+        if(context == null) throw new RuntimeException("application context should not be null");
+        File dir = DatabaseHelper.getFilesDir("Logs");
+        if (dir == null) throw new IOException("log dir should not be null");
+
+        File logFile = new File(String.format("%s/Log %s.txt", dir.getPath(), date));
+        FileWriter output = new FileWriter(logFile);
+        output.write(deviceInfo);
+        output.write(logcat);
+        output.close();
+
+        return logFile;
+    }
+}

app/src/main/java/org/isoron/uhabits/MainActivity.java

@@ -26,27 +26,32 @@ import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.SharedPreferences;
+import android.content.pm.PackageManager;
 import android.net.Uri;
 import android.os.AsyncTask;
 import android.os.Bundle;
 import android.preference.PreferenceManager;
+import android.support.annotation.NonNull;
 import android.support.v4.content.LocalBroadcastManager;
 import android.view.Menu;
 import android.view.MenuItem;
 
-import org.isoron.helpers.DateHelper;
-import org.isoron.helpers.DialogHelper;
-import org.isoron.helpers.ReplayableActivity;
+import org.isoron.uhabits.helpers.DateHelper;
+import org.isoron.uhabits.helpers.UIHelper;
 import org.isoron.uhabits.fragments.ListHabitsFragment;
 import org.isoron.uhabits.helpers.ReminderHelper;
 import org.isoron.uhabits.models.Habit;
+import org.isoron.uhabits.tasks.BaseTask;
 import org.isoron.uhabits.widgets.CheckmarkWidgetProvider;
 import org.isoron.uhabits.widgets.FrequencyWidgetProvider;
 import org.isoron.uhabits.widgets.HistoryWidgetProvider;
 import org.isoron.uhabits.widgets.ScoreWidgetProvider;
 import org.isoron.uhabits.widgets.StreakWidgetProvider;
 
-public class MainActivity extends ReplayableActivity
+import java.io.File;
+import java.io.IOException;
+
+public class MainActivity extends BaseActivity
         implements ListHabitsFragment.OnHabitClickListener
 {
     private ListHabitsFragment listHabitsFragment;
@@ -56,6 +61,11 @@ public class MainActivity extends ReplayableActivity
 
     public static final String ACTION_REFRESH = "org.isoron.uhabits.ACTION_REFRESH";
 
+    public static final int RESULT_IMPORT_DATA = 1;
+    public static final int RESULT_EXPORT_CSV = 2;
+    public static final int RESULT_EXPORT_DB = 3;
+    public static final int RESULT_BUG_REPORT = 4;
+
     @Override
     protected void onCreate(Bundle savedInstanceState)
     {
@@ -76,8 +86,8 @@ public class MainActivity extends ReplayableActivity
     private void onStartup()
     {
         PreferenceManager.setDefaultValues(this, R.xml.preferences, false);
-        DialogHelper.incrementLaunchCount(this);
-        DialogHelper.updateLastAppVersion(this);
+        UIHelper.incrementLaunchCount(this);
+        UIHelper.updateLastAppVersion(this);
         showTutorial();
 
         new AsyncTask<Void, Void, Void>() {
@@ -123,7 +133,7 @@ public class MainActivity extends ReplayableActivity
             case R.id.action_settings:
             {
                 Intent intent = new Intent(this, SettingsActivity.class);
-                startActivity(intent);
+                startActivityForResult(intent, 0);
                 return true;
             }
 
@@ -134,11 +144,62 @@ public class MainActivity extends ReplayableActivity
                 return true;
             }
 
+            case R.id.action_faq:
+            {
+                Intent intent = new Intent();
+                intent.setAction(Intent.ACTION_VIEW);
+                intent.setData(Uri.parse(getString(R.string.helpURL)));
+                startActivity(intent);
+                return true;
+            }
+
             default:
                 return super.onOptionsItemSelected(item);
         }
     }
 
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data)
+    {
+        switch (resultCode)
+        {
+            case RESULT_IMPORT_DATA:
+                listHabitsFragment.showImportDialog();
+                break;
+
+            case RESULT_EXPORT_CSV:
+                listHabitsFragment.exportAllHabits();
+                break;
+
+            case RESULT_EXPORT_DB:
+                listHabitsFragment.exportDB();
+                break;
+
+            case RESULT_BUG_REPORT:
+                generateBugReport();
+                break;
+        }
+    }
+
+    private void generateBugReport()
+    {
+        try
+        {
+            File logFile = HabitsApplication.generateLogFile();
+
+            Intent intent = new Intent();
+            intent.setAction(Intent.ACTION_SENDTO);
+            intent.setData(Uri.parse(getString(R.string.bugReportURL)));
+            intent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(logFile));
+            startActivity(intent);
+        }
+        catch (IOException e)
+        {
+            e.printStackTrace();
+            showToast(R.string.bug_report_failed);
+        }
+    }
+
     @Override
     public void onHabitClicked(Habit habit)
     {
@@ -152,15 +213,14 @@ public class MainActivity extends ReplayableActivity
     {
         listHabitsFragment.onPostExecuteCommand(refreshKey);
 
-        new AsyncTask<Void, Void, Void>()
+        new BaseTask()
         {
             @Override
-            protected Void doInBackground(Void... params)
+            protected void doInBackground()
             {
                 updateWidgets(MainActivity.this);
-                return null;
             }
-        };
+        }.execute();
     }
 
     public static void updateWidgets(Context context)
@@ -197,4 +257,14 @@ public class MainActivity extends ReplayableActivity
             listHabitsFragment.onPostExecuteCommand(null);
         }
     }
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
+                                           @NonNull int[] grantResults)
+    {
+        if (grantResults.length <= 0) return;
+        if (grantResults[0] != PackageManager.PERMISSION_GRANTED) return;
+
+        listHabitsFragment.showImportDialog();
+    }
 }

app/src/main/java/org/isoron/uhabits/ShowHabitActivity.java

@@ -20,28 +20,16 @@
 package org.isoron.uhabits;
 
 import android.app.ActionBar;
-import android.content.BroadcastReceiver;
 import android.content.ContentUris;
-import android.content.Context;
-import android.content.Intent;
-import android.content.IntentFilter;
 import android.graphics.drawable.ColorDrawable;
 import android.net.Uri;
 import android.os.Bundle;
-import android.support.v4.content.LocalBroadcastManager;
 
-import org.isoron.helpers.ReplayableActivity;
-import org.isoron.uhabits.fragments.ShowHabitFragment;
 import org.isoron.uhabits.models.Habit;
 
-public class ShowHabitActivity extends ReplayableActivity
+public class ShowHabitActivity extends BaseActivity
 {
-
-    public Habit habit;
-    private Receiver receiver;
-    private LocalBroadcastManager localBroadcastManager;
-
-    private ShowHabitFragment fragment;
+    private Habit habit;
 
     @Override
     protected void onCreate(Bundle savedInstanceState)
@@ -52,37 +40,18 @@ public class ShowHabitActivity extends ReplayableActivity
         habit = Habit.get(ContentUris.parseId(data));
         ActionBar actionBar = getActionBar();
 
-        if(actionBar != null)
+        if(actionBar != null && getHabit() != null)
         {
-            actionBar.setTitle(habit.name);
-
+            actionBar.setTitle(getHabit().name);
             if (android.os.Build.VERSION.SDK_INT >= 21)
-                actionBar.setBackgroundDrawable(new ColorDrawable(habit.color));
+                actionBar.setBackgroundDrawable(new ColorDrawable(getHabit().color));
         }
 
         setContentView(R.layout.show_habit_activity);
-
-        fragment = (ShowHabitFragment) getFragmentManager().findFragmentById(R.id.fragment2);
-
-        receiver = new Receiver();
-        localBroadcastManager = LocalBroadcastManager.getInstance(this);
-        localBroadcastManager.registerReceiver(receiver,
-                new IntentFilter(MainActivity.ACTION_REFRESH));
     }
 
-    class Receiver extends BroadcastReceiver
+    public Habit getHabit()
     {
-        @Override
-        public void onReceive(Context context, Intent intent)
-        {
-            fragment.refreshData();
-        }
-    }
-
-    @Override
-    protected void onDestroy()
-    {
-        localBroadcastManager.unregisterReceiver(receiver);
-        super.onDestroy();
+        return habit;
     }
 }

app/src/main/java/org/isoron/uhabits/commands/ArchiveHabitsCommand.java

@@ -19,11 +19,9 @@
 
 package org.isoron.uhabits.commands;
 
-import org.isoron.helpers.Command;
 import org.isoron.uhabits.R;
 import org.isoron.uhabits.models.Habit;
 
-import java.util.LinkedList;
 import java.util.List;
 
 public class ArchiveHabitsCommand extends Command
@@ -31,12 +29,6 @@ public class ArchiveHabitsCommand extends Command
 
     private List<Habit> habits;
 
-    public ArchiveHabitsCommand(Habit habit)
-    {
-        habits = new LinkedList<>();
-        habits.add(habit);
-    }
-
     public ArchiveHabitsCommand(List<Habit> habits)
     {
         this.habits = habits;
@@ -45,15 +37,13 @@ public class ArchiveHabitsCommand extends Command
     @Override
     public void execute()
     {
-        for(Habit h : habits)
-            h.archive();
+        Habit.archive(habits);
     }
 
     @Override
     public void undo()
     {
-        for(Habit h : habits)
-            h.unarchive();
+        Habit.unarchive(habits);
     }
 
     public Integer getExecuteStringId()

app/src/main/java/org/isoron/uhabits/commands/ChangeHabitColorCommand.java

@@ -21,8 +21,8 @@ package org.isoron.uhabits.commands;
 
 import com.activeandroid.ActiveAndroid;
 
-import org.isoron.helpers.Command;
 import org.isoron.uhabits.R;
+import org.isoron.uhabits.helpers.DatabaseHelper;
 import org.isoron.uhabits.models.Habit;
 
 import java.util.ArrayList;
@@ -47,30 +47,16 @@ public class ChangeHabitColorCommand extends Command
     @Override
     public void execute()
     {
-        ActiveAndroid.beginTransaction();
-
-        try
-        {
-            for(Habit h : habits)
-            {
-                h.color = newColor;
-                h.save();
-            }
-
-            ActiveAndroid.setTransactionSuccessful();
-        }
-        finally
-        {
-            ActiveAndroid.endTransaction();
-        }
+        Habit.setColor(habits, newColor);
     }
 
     @Override
     public void undo()
     {
-        ActiveAndroid.beginTransaction();
-
-        try
+        DatabaseHelper.executeAsTransaction(new DatabaseHelper.Command()
+        {
+            @Override
+            public void execute()
             {
                 int k = 0;
                 for(Habit h : habits)
@@ -78,13 +64,8 @@ public class ChangeHabitColorCommand extends Command
                     h.color = originalColors.get(k++);
                     h.save();
                 }
-
-            ActiveAndroid.setTransactionSuccessful();
-        }
-        finally
-        {
-            ActiveAndroid.endTransaction();
             }
+        });
     }
 
     public Integer getExecuteStringId()

app/src/main/java/org/isoron/uhabits/commands/Command.java

@@ -17,7 +17,7 @@
  * with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-package org.isoron.helpers;
+package org.isoron.uhabits.commands;
 
 public abstract class Command
 {

app/src/main/java/org/isoron/uhabits/commands/CreateHabitCommand.java

@@ -19,7 +19,6 @@
 
 package org.isoron.uhabits.commands;
 
-import org.isoron.helpers.Command;
 import org.isoron.uhabits.R;
 import org.isoron.uhabits.models.Habit;
 
@@ -51,7 +50,10 @@ public class CreateHabitCommand extends Command
     @Override
     public void undo()
     {
-        Habit.get(savedId).delete();
+        Habit habit = Habit.get(savedId);
+        if(habit == null) throw new RuntimeException("Habit not found");
+
+        habit.cascadeDelete();
     }
 
     @Override

app/src/main/java/org/isoron/uhabits/commands/DeleteHabitsCommand.java

@@ -19,7 +19,6 @@
 
 package org.isoron.uhabits.commands;
 
-import org.isoron.helpers.Command;
 import org.isoron.uhabits.R;
 import org.isoron.uhabits.models.Habit;
 

app/src/main/java/org/isoron/uhabits/commands/EditHabitCommand.java

@@ -19,7 +19,6 @@
 
 package org.isoron.uhabits.commands;
 
-import org.isoron.helpers.Command;
 import org.isoron.uhabits.R;
 import org.isoron.uhabits.models.Habit;
 
@@ -40,29 +39,36 @@ public class EditHabitCommand extends Command
                 !this.original.freqNum.equals(this.modified.freqNum));
     }
 
+    @Override
     public void execute()
     {
-        Habit habit = Habit.get(savedId);
-        habit.copyAttributes(modified);
-        habit.save();
-        if (hasIntervalChanged)
-        {
-            habit.checkmarks.deleteNewerThan(0);
-            habit.streaks.deleteNewerThan(0);
-            habit.scores.deleteNewerThan(0);
-        }
+        copyAttributes(this.modified);
     }
 
+    @Override
     public void undo()
+    {
+        copyAttributes(this.original);
+    }
+
+    private void copyAttributes(Habit model)
     {
         Habit habit = Habit.get(savedId);
-        habit.copyAttributes(original);
+        if(habit == null) throw new RuntimeException("Habit not found");
+
+        habit.copyAttributes(model);
         habit.save();
+
+        invalidateIfNeeded(habit);
+    }
+
+    private void invalidateIfNeeded(Habit habit)
+    {
         if (hasIntervalChanged)
         {
             habit.checkmarks.deleteNewerThan(0);
             habit.streaks.deleteNewerThan(0);
-            habit.scores.deleteNewerThan(0);
+            habit.scores.invalidateNewerThan(0);
         }
     }
 

app/src/main/java/org/isoron/uhabits/commands/ToggleRepetitionCommand.java

@@ -19,7 +19,6 @@
 
 package org.isoron.uhabits.commands;
 
-import org.isoron.helpers.Command;
 import org.isoron.uhabits.models.Habit;
 
 public class ToggleRepetitionCommand extends Command

app/src/main/java/org/isoron/uhabits/commands/UnarchiveHabitsCommand.java

@@ -19,11 +19,9 @@
 
 package org.isoron.uhabits.commands;
 
-import org.isoron.helpers.Command;
 import org.isoron.uhabits.R;
 import org.isoron.uhabits.models.Habit;
 
-import java.util.LinkedList;
 import java.util.List;
 
 public class UnarchiveHabitsCommand extends Command
@@ -31,12 +29,6 @@ public class UnarchiveHabitsCommand extends Command
 
     private List<Habit> habits;
 
-    public UnarchiveHabitsCommand(Habit habit)
-    {
-        habits = new LinkedList<>();
-        habits.add(habit);
-    }
-
     public UnarchiveHabitsCommand(List<Habit> habits)
     {
         this.habits = habits;
@@ -45,15 +37,13 @@ public class UnarchiveHabitsCommand extends Command
     @Override
     public void execute()
     {
-        for(Habit h : habits)
-            h.unarchive();
+        Habit.unarchive(habits);
     }
 
     @Override
     public void undo()
     {
-        for(Habit h : habits)
-            h.archive();
+        Habit.archive(habits);
     }
 
     public Integer getExecuteStringId()

app/src/main/java/org/isoron/uhabits/dialogs/FilePickerDialog.java

@@ -0,0 +1,175 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.dialogs;
+
+import android.app.Activity;
+import android.app.Dialog;
+import android.support.annotation.NonNull;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.WindowManager.LayoutParams;
+import android.widget.AdapterView;
+import android.widget.ArrayAdapter;
+import android.widget.ListView;
+import android.widget.TextView;
+
+import java.io.File;
+import java.io.FileFilter;
+import java.util.Arrays;
+
+public class FilePickerDialog implements AdapterView.OnItemClickListener
+{
+    private static final String PARENT_DIR = "..";
+
+    private final Activity activity;
+    private ListView list;
+    private Dialog dialog;
+    private File currentPath;
+
+    public interface OnFileSelectedListener
+    {
+        void onFileSelected(File file);
+    }
+
+    private OnFileSelectedListener listener;
+
+    public FilePickerDialog(Activity activity, File initialDirectory)
+    {
+        this.activity = activity;
+
+        list = new ListView(activity);
+        list.setOnItemClickListener(this);
+
+        dialog = new Dialog(activity);
+        dialog.setContentView(list);
+        dialog.getWindow().setLayout(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
+
+        navigateTo(initialDirectory);
+    }
+
+    @Override
+    public void onItemClick(AdapterView<?> parent, View view, int which, long id)
+    {
+        String filename = (String) list.getItemAtPosition(which);
+        File file;
+
+        if (filename.equals(PARENT_DIR))
+            file = currentPath.getParentFile();
+        else
+            file = new File(currentPath, filename);
+
+        if (file.isDirectory())
+        {
+            navigateTo(file);
+        }
+        else
+        {
+            if (listener != null) listener.onFileSelected(file);
+            dialog.dismiss();
+        }
+    }
+
+    public void show()
+    {
+        dialog.show();
+    }
+
+    public void setListener(OnFileSelectedListener listener)
+    {
+        this.listener = listener;
+    }
+
+    private void navigateTo(File path)
+    {
+        if (!path.exists()) return;
+
+        File[] dirs = path.listFiles(new ReadableDirFilter());
+        File[] files = path.listFiles(new RegularReadableFileFilter());
+        if(dirs == null || files == null) return;
+
+        this.currentPath = path;
+        dialog.setTitle(currentPath.getPath());
+        list.setAdapter(new FilePickerAdapter(getFileList(path, dirs, files)));
+    }
+
+    @NonNull
+    private String[] getFileList(File path, File[] dirs, File[] files)
+    {
+        int count = 0;
+        int length = dirs.length + files.length;
+        String[] fileList;
+
+        if (path.getParentFile() == null || !path.getParentFile().canRead())
+        {
+            fileList = new String[length];
+        }
+        else
+        {
+            fileList = new String[length + 1];
+            fileList[count++] = PARENT_DIR;
+        }
+
+        Arrays.sort(dirs);
+        Arrays.sort(files);
+
+        for (File dir : dirs)
+            fileList[count++] = dir.getName();
+
+        for (File file : files)
+            fileList[count++] = file.getName();
+
+        return fileList;
+    }
+
+    private class FilePickerAdapter extends ArrayAdapter<String>
+    {
+        public FilePickerAdapter(@NonNull String[] fileList)
+        {
+            super(FilePickerDialog.this.activity, android.R.layout.simple_list_item_1, fileList);
+        }
+
+        @Override
+        public View getView(int pos, View view, ViewGroup parent)
+        {
+            view = super.getView(pos, view, parent);
+            TextView tv = (TextView) view;
+            tv.setSingleLine(true);
+            return view;
+        }
+    }
+
+    private static class ReadableDirFilter implements FileFilter
+    {
+        @Override
+        public boolean accept(File file)
+        {
+            return (file.isDirectory() && file.canRead());
+        }
+    }
+
+    private class RegularReadableFileFilter implements FileFilter
+    {
+        @Override
+        public boolean accept(File file)
+        {
+            return !file.isDirectory() && file.canRead();
+        }
+    }
+}

app/src/main/java/org/isoron/uhabits/dialogs/HistoryEditorDialog.java

@@ -30,6 +30,7 @@ import android.util.Log;
 
 import org.isoron.uhabits.R;
 import org.isoron.uhabits.models.Habit;
+import org.isoron.uhabits.tasks.BaseTask;
 import org.isoron.uhabits.views.HabitHistoryView;
 
 public class HistoryEditorDialog extends DialogFragment
@@ -44,7 +45,6 @@ public class HistoryEditorDialog extends DialogFragment
     {
         Context context = getActivity();
         historyView = new HabitHistoryView(context, null);
-        int p = (int) getResources().getDimension(R.dimen.history_editor_padding);
 
         if(savedInstanceState != null)
         {
@@ -52,7 +52,8 @@ public class HistoryEditorDialog extends DialogFragment
             if(id > 0) this.habit = Habit.get(id);
         }
 
-        historyView.setPadding(p, 0, p, 0);
+        int padding = (int) getResources().getDimension(R.dimen.history_editor_padding);
+        historyView.setPadding(padding, 0, padding, 0);
         historyView.setHabit(habit);
         historyView.setIsEditable(true);
 
@@ -61,9 +62,23 @@ public class HistoryEditorDialog extends DialogFragment
                 .setView(historyView)
                 .setPositiveButton(android.R.string.ok, this);
 
+        refreshData();
+
         return builder.create();
     }
 
+    private void refreshData()
+    {
+        new BaseTask()
+        {
+            @Override
+            protected void doInBackground()
+            {
+                historyView.refreshData();
+            }
+        }.execute();
+    }
+
     @Override
     public void onResume()
     {

app/src/main/java/org/isoron/uhabits/dialogs/WeekdayPickerDialog.java

@@ -25,7 +25,7 @@ import android.app.DialogFragment;
 import android.content.DialogInterface;
 import android.os.Bundle;
 
-import org.isoron.helpers.DateHelper;
+import org.isoron.uhabits.helpers.DateHelper;
 import org.isoron.uhabits.R;
 
 public class WeekdayPickerDialog extends DialogFragment

app/src/main/java/org/isoron/uhabits/fragments/EditHabitFragment.java

@@ -19,9 +19,9 @@
 
 package org.isoron.uhabits.fragments;
 
+import android.annotation.SuppressLint;
 import android.app.DialogFragment;
 import android.content.SharedPreferences;
-import android.graphics.Color;
 import android.os.Bundle;
 import android.preference.PreferenceManager;
 import android.text.format.DateFormat;
@@ -29,8 +29,10 @@ import android.view.LayoutInflater;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.ViewGroup;
+import android.widget.AdapterView;
 import android.widget.Button;
 import android.widget.ImageButton;
+import android.widget.Spinner;
 import android.widget.TextView;
 
 import com.android.colorpicker.ColorPickerDialog;
@@ -38,11 +40,11 @@ import com.android.colorpicker.ColorPickerSwatch;
 import com.android.datetimepicker.time.RadialPickerLayout;
 import com.android.datetimepicker.time.TimePickerDialog;
 
-import org.isoron.helpers.ColorHelper;
-import org.isoron.helpers.Command;
-import org.isoron.helpers.DateHelper;
-import org.isoron.helpers.DialogHelper.OnSavedListener;
+import org.isoron.uhabits.helpers.ColorHelper;
+import org.isoron.uhabits.helpers.DateHelper;
+import org.isoron.uhabits.helpers.UIHelper.OnSavedListener;
 import org.isoron.uhabits.R;
+import org.isoron.uhabits.commands.Command;
 import org.isoron.uhabits.commands.CreateHabitCommand;
 import org.isoron.uhabits.commands.EditHabitCommand;
 import org.isoron.uhabits.dialogs.WeekdayPickerDialog;
@@ -52,7 +54,7 @@ import java.util.Arrays;
 
 public class EditHabitFragment extends DialogFragment
         implements OnClickListener, WeekdayPickerDialog.OnWeekdaysPickedListener,
-        TimePickerDialog.OnTimeSetListener
+        TimePickerDialog.OnTimeSetListener, Spinner.OnItemSelectedListener
 {
     private Integer mode;
     static final int EDIT_MODE = 0;
@@ -70,6 +72,10 @@ public class EditHabitFragment extends DialogFragment
     private TextView tvReminderTime;
     private TextView tvReminderDays;
 
+    private Spinner sFrequency;
+    private ViewGroup llCustomFrequency;
+    private ViewGroup llReminderDays;
+
     private SharedPreferences prefs;
     private boolean is24HourMode;
 
@@ -104,6 +110,10 @@ public class EditHabitFragment extends DialogFragment
         tvReminderTime = (TextView) view.findViewById(R.id.inputReminderTime);
         tvReminderDays = (TextView) view.findViewById(R.id.inputReminderDays);
 
+        sFrequency = (Spinner) view.findViewById(R.id.sFrequency);
+        llCustomFrequency = (ViewGroup) view.findViewById(R.id.llCustomFrequency);
+        llReminderDays = (ViewGroup) view.findViewById(R.id.llReminderDays);
+
         Button buttonSave = (Button) view.findViewById(R.id.buttonSave);
         Button buttonDiscard = (Button) view.findViewById(R.id.buttonDiscard);
         ImageButton buttonPickColor = (ImageButton) view.findViewById(R.id.buttonPickColor);
@@ -113,6 +123,7 @@ public class EditHabitFragment extends DialogFragment
         tvReminderTime.setOnClickListener(this);
         tvReminderDays.setOnClickListener(this);
         buttonPickColor.setOnClickListener(this);
+        sFrequency.setOnItemSelectedListener(this);
 
         prefs = PreferenceManager.getDefaultSharedPreferences(getActivity());
 
@@ -125,18 +136,16 @@ public class EditHabitFragment extends DialogFragment
         {
             getDialog().setTitle(R.string.create_habit);
             modifiedHabit = new Habit();
-
-            int defaultNum = prefs.getInt("pref_default_habit_freq_num", modifiedHabit.freqNum);
-            int defaultDen = prefs.getInt("pref_default_habit_freq_den", modifiedHabit.freqDen);
-            int defaultColor = prefs.getInt("pref_default_habit_color", modifiedHabit.color);
-
-            modifiedHabit.color = defaultColor;
-            modifiedHabit.freqNum = defaultNum;
-            modifiedHabit.freqDen = defaultDen;
+            modifiedHabit.freqNum = 1;
+            modifiedHabit.freqDen = 1;
+            modifiedHabit.color = prefs.getInt("pref_default_habit_color", modifiedHabit.color);
         }
         else if (mode == EDIT_MODE)
         {
-            originalHabit = Habit.get((Long) args.get("habitId"));
+            Long habitId = (Long) args.get("habitId");
+            if(habitId == null) throw new IllegalArgumentException("habitId must be specified");
+
+            originalHabit = Habit.get(habitId);
             modifiedHabit = new Habit(originalHabit);
 
             getDialog().setTitle(R.string.edit_habit);
@@ -152,17 +161,14 @@ public class EditHabitFragment extends DialogFragment
             modifiedHabit.reminderDays = savedInstanceState.getInt("reminderDays", -1);
 
             if(modifiedHabit.reminderMin < 0)
-            {
-                modifiedHabit.reminderMin = null;
-                modifiedHabit.reminderHour = null;
-                modifiedHabit.reminderDays = 127;
-            }
+                modifiedHabit.clearReminder();
         }
 
         tvFreqNum.append(modifiedHabit.freqNum.toString());
         tvFreqDen.append(modifiedHabit.freqDen.toString());
 
         changeColor(modifiedHabit.color);
+        updateFrequency();
         updateReminder();
 
         return view;
@@ -178,25 +184,24 @@ public class EditHabitFragment extends DialogFragment
         editor.apply();
     }
 
+    @SuppressWarnings("ConstantConditions")
     private void updateReminder()
     {
-        if (modifiedHabit.reminderHour != null)
+        if (modifiedHabit.hasReminder())
         {
-            tvReminderTime.setTextColor(Color.BLACK);
             tvReminderTime.setText(DateHelper.formatTime(getActivity(), modifiedHabit.reminderHour,
                     modifiedHabit.reminderMin));
-            tvReminderDays.setVisibility(View.VISIBLE);
-        }
-        else
-        {
-            tvReminderTime.setTextColor(Color.GRAY);
-            tvReminderTime.setText(R.string.reminder_off);
-            tvReminderDays.setVisibility(View.GONE);
-        }
+            llReminderDays.setVisibility(View.VISIBLE);
 
             boolean weekdays[] = DateHelper.unpackWeekdayList(modifiedHabit.reminderDays);
             tvReminderDays.setText(DateHelper.formatWeekdayList(getActivity(), weekdays));
         }
+        else
+        {
+            tvReminderTime.setText(R.string.reminder_off);
+            llReminderDays.setVisibility(View.GONE);
+        }
+    }
 
     public void setOnSavedListener(OnSavedListener onSavedListener)
     {
@@ -257,11 +262,6 @@ public class EditHabitFragment extends DialogFragment
 
         if (!validate()) return;
 
-        SharedPreferences.Editor editor = prefs.edit();
-        editor.putInt("pref_default_habit_freq_num", modifiedHabit.freqNum);
-        editor.putInt("pref_default_habit_freq_den", modifiedHabit.freqDen);
-        editor.apply();
-
         Command command = null;
         Habit savedHabit = null;
 
@@ -305,12 +305,13 @@ public class EditHabitFragment extends DialogFragment
         return valid;
     }
 
+    @SuppressWarnings("ConstantConditions")
     private void onDateSpinnerClick()
     {
         int defaultHour = 8;
         int defaultMin = 0;
 
-        if (modifiedHabit.reminderHour != null)
+        if (modifiedHabit.hasReminder())
         {
             defaultHour = modifiedHabit.reminderHour;
             defaultMin = modifiedHabit.reminderMin;
@@ -321,8 +322,11 @@ public class EditHabitFragment extends DialogFragment
         timePicker.show(getFragmentManager(), "timePicker");
     }
 
+    @SuppressWarnings("ConstantConditions")
     private void onWeekdayClick()
     {
+        if(!modifiedHabit.hasReminder()) return;
+
         WeekdayPickerDialog dialog = new WeekdayPickerDialog();
         dialog.setListener(this);
         dialog.setSelectedDays(DateHelper.unpackWeekdayList(modifiedHabit.reminderDays));
@@ -334,14 +338,14 @@ public class EditHabitFragment extends DialogFragment
     {
         modifiedHabit.reminderHour = hour;
         modifiedHabit.reminderMin = minute;
+        modifiedHabit.reminderDays = DateHelper.ALL_WEEK_DAYS;
         updateReminder();
     }
 
     @Override
     public void onTimeCleared(RadialPickerLayout view)
     {
-        modifiedHabit.reminderHour = null;
-        modifiedHabit.reminderMin = null;
+        modifiedHabit.clearReminder();
         updateReminder();
     }
 
@@ -359,16 +363,93 @@ public class EditHabitFragment extends DialogFragment
     }
 
     @Override
+    @SuppressWarnings("ConstantConditions")
     public void onSaveInstanceState(Bundle outState)
     {
         super.onSaveInstanceState(outState);
 
         outState.putInt("color", modifiedHabit.color);
-        if(modifiedHabit.reminderHour != null)
+
+        if(modifiedHabit.hasReminder())
         {
             outState.putInt("reminderMin", modifiedHabit.reminderMin);
             outState.putInt("reminderHour", modifiedHabit.reminderHour);
             outState.putInt("reminderDays", modifiedHabit.reminderDays);
         }
     }
+
+    @Override
+    public void onItemSelected(AdapterView<?> parent, View view, int position, long id)
+    {
+        if(parent.getId() == R.id.sFrequency)
+        {
+            switch (position)
+            {
+                case 0:
+                    modifiedHabit.freqNum = 1;
+                    modifiedHabit.freqDen = 1;
+                    break;
+
+                case 1:
+                    modifiedHabit.freqNum = 1;
+                    modifiedHabit.freqDen = 7;
+                    break;
+
+                case 2:
+                    modifiedHabit.freqNum = 2;
+                    modifiedHabit.freqDen = 7;
+                    break;
+
+                case 3:
+                    modifiedHabit.freqNum = 5;
+                    modifiedHabit.freqDen = 7;
+                    break;
+
+                case 4:
+                    modifiedHabit.freqNum = 3;
+                    modifiedHabit.freqDen = 7;
+                    break;
+            }
+        }
+
+        updateFrequency();
+    }
+
+    @SuppressLint("SetTextI18n")
+    private void updateFrequency()
+    {
+        int quickSelectPosition = -1;
+
+        if(modifiedHabit.freqNum.equals(modifiedHabit.freqDen))
+            quickSelectPosition = 0;
+
+        else if(modifiedHabit.freqNum == 1 && modifiedHabit.freqDen == 7)
+            quickSelectPosition = 1;
+
+        else if(modifiedHabit.freqNum == 2 && modifiedHabit.freqDen == 7)
+            quickSelectPosition = 2;
+
+        else if(modifiedHabit.freqNum == 5 && modifiedHabit.freqDen == 7)
+            quickSelectPosition = 3;
+
+        if(quickSelectPosition >= 0)
+        {
+            sFrequency.setVisibility(View.VISIBLE);
+            sFrequency.setSelection(quickSelectPosition);
+            llCustomFrequency.setVisibility(View.GONE);
+            tvFreqNum.setText(modifiedHabit.freqNum.toString());
+            tvFreqDen.setText(modifiedHabit.freqDen.toString());
+        }
+        else
+        {
+            sFrequency.setVisibility(View.GONE);
+            llCustomFrequency.setVisibility(View.VISIBLE);
+        }
+    }
+
+    @Override
+    public void onNothingSelected(AdapterView<?> parent)
+    {
+
+    }
 }

app/src/main/java/org/isoron/uhabits/fragments/HabitListAdapter.java

@@ -27,7 +27,7 @@ import android.widget.BaseAdapter;
 import android.widget.LinearLayout;
 import android.widget.TextView;
 
-import org.isoron.helpers.DateHelper;
+import org.isoron.uhabits.helpers.DateHelper;
 import org.isoron.uhabits.R;
 import org.isoron.uhabits.helpers.ListHabitsHelper;
 import org.isoron.uhabits.loaders.HabitListLoader;