Implement tests for BaseScreen

app/src/main/java/org/isoron/uhabits/activities/BaseRootView.java

@@ -42,17 +42,16 @@ import static android.os.Build.VERSION_CODES.*;
  */
 public abstract class BaseRootView extends FrameLayout
 {
+    @NonNull
     private final Context context;
 
-    private final BaseActivity activity;
-
     private final ThemeSwitcher themeSwitcher;
 
-    public BaseRootView(Context context)
+    public BaseRootView(@NonNull Context context)
     {
         super(context);
         this.context = context;
-        activity = (BaseActivity) context;
+        BaseActivity activity = (BaseActivity) context;
         themeSwitcher = activity.getComponent().getThemeSwitcher();
     }
 

app/src/main/java/org/isoron/uhabits/activities/BaseScreen.java

@@ -61,7 +61,7 @@ public class BaseScreen
     @Nullable
     private BaseSelectionMenu selectionMenu;
 
-    private Snackbar snackbar;
+    protected Snackbar snackbar;
 
     public BaseScreen(@NonNull BaseActivity activity)
     {

app/src/main/java/org/isoron/uhabits/activities/BaseSelectionMenu.java

@@ -59,14 +59,14 @@ public abstract class BaseSelectionMenu
     /**
      * Called when the menu is first displayed.
      * <p>
-     * This method cannot be overridden. The application should override the
+     * This method should not be overridden. The application should override
-     * methods onCreate(Menu) and getMenuResourceId instead.
+     * the methods onCreate(Menu) and getMenuResourceId instead.
      *
      * @param inflater a menu inflater, for creating the menu
      * @param mode     the action mode associated with this menu.
      * @param menu     the menu that is being created.
      */
-    public final void onCreate(@NonNull MenuInflater inflater,
+    public void onCreate(@NonNull MenuInflater inflater,
                          @NonNull ActionMode mode,
                          @NonNull Menu menu)
     {

app/src/test/java/org/isoron/uhabits/activities/BaseActivityTest.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ * Copyright (C) 2017 Álinson Santos Xavier <isoron@gmail.com>
  *
  * This file is part of Loop Habit Tracker.
  *

app/src/test/java/org/isoron/uhabits/activities/BaseScreenTest.java

@@ -0,0 +1,140 @@
+/*
+ * Copyright (C) 2017 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.activities;
+
+import android.content.*;
+import android.support.annotation.*;
+import android.support.v7.view.ActionMode;
+import android.support.v7.widget.*;
+import android.view.*;
+
+import org.isoron.uhabits.*;
+import org.junit.*;
+import org.junit.runner.*;
+import org.robolectric.*;
+import org.robolectric.annotation.*;
+
+import java.util.*;
+
+import static android.view.View.*;
+import static junit.framework.Assert.assertNotNull;
+import static org.hamcrest.core.IsEqual.*;
+import static org.junit.Assert.*;
+import static org.mockito.Matchers.any;
+import static org.mockito.Mockito.*;
+import static org.robolectric.Robolectric.*;
+
+@RunWith(RobolectricTestRunner.class)
+@Config(constants = BuildConfig.class)
+public class BaseScreenTest
+{
+    @Test
+    public void selectionMenuTest()
+    {
+        BaseSelectionMenu selectionMenu = spy(new BaseSelectionMenu()
+        {
+            @Override
+            protected int getResourceId()
+            {
+                return R.menu.list_habits_selection;
+            }
+        });
+
+        ActionModeActivity activity = setupActivity(ActionModeActivity.class);
+        BaseScreen screen = new BaseScreen(activity);
+        screen.setSelectionMenu(selectionMenu);
+        activity.setScreen(screen);
+
+        screen.startSelection();
+        assertNotNull(activity.callback);
+        verify(selectionMenu).onCreate(any(), any(), any());
+        verify(selectionMenu).onPrepare(any());
+
+        ActionMode mode = mock(ActionMode.class);
+        MenuItem item = mock(MenuItem.class);
+
+        activity.callback.onActionItemClicked(mode, item);
+        verify(selectionMenu).onItemClicked(item);
+
+        activity.callback.onDestroyActionMode(mode);
+        verify(selectionMenu).onFinish();
+    }
+
+    @Test
+    public void showMessageTest()
+    {
+        EmptyActivity activity = setupActivity(EmptyActivity.class);
+        ConcreteRootView rootView = new ConcreteRootView(activity);
+        View decor = activity.getWindow().getDecorView();
+        BaseScreen screen = new BaseScreen(activity);
+        screen.setRootView(rootView);
+        activity.setScreen(screen);
+
+        ArrayList<View> matches = new ArrayList<>();
+
+        screen.showMessage(R.string.checkmark);
+        decor.findViewsWithText(matches, "Checkmark", FIND_VIEWS_WITH_TEXT);
+        assertThat(matches.size(), equalTo(1));
+        assertTrue(matches.get(0).isShown());
+
+        screen.showMessage(R.string.frequency);
+        decor.findViewsWithText(matches, "Frequency", FIND_VIEWS_WITH_TEXT);
+        assertThat(matches.size(), equalTo(1));
+        assertTrue(matches.get(0).isShown());
+    }
+
+    static class ActionModeActivity extends BaseActivity
+    {
+        private ActionMode.Callback callback;
+
+        @Nullable
+        @Override
+        public ActionMode startSupportActionMode(
+            @NonNull ActionMode.Callback callback)
+        {
+            this.callback = callback;
+            return super.startSupportActionMode(this.callback);
+        }
+    }
+
+    static class ConcreteRootView extends BaseRootView
+    {
+        private final Toolbar toolbar;
+
+        public ConcreteRootView(@NonNull Context context)
+        {
+            super(context);
+            toolbar = new Toolbar(context);
+            addView(toolbar);
+        }
+
+        @NonNull
+        @Override
+        public Toolbar getToolbar()
+        {
+            return toolbar;
+        }
+    }
+
+    static class EmptyActivity extends BaseActivity
+    {
+
+    }
+}