diff --git a/uhabits-core/build.gradle b/uhabits-core/build.gradle
index 88518d3d5..1a0bb7763 100644
--- a/uhabits-core/build.gradle
+++ b/uhabits-core/build.gradle
@@ -25,6 +25,7 @@ dependencies {
     testImplementation 'org.mockito:mockito-core:2.8.9'
     testImplementation 'org.json:json:20160810'
     testImplementation 'org.xerial:sqlite-jdbc:3.18.0'
+    testImplementation 'nl.jqno.equalsverifier:equalsverifier:2.3.1'
 
     implementation('com.opencsv:opencsv:3.9') {
         exclude group: 'commons-logging', module: 'commons-logging'
diff --git a/uhabits-core/src/main/java/org/isoron/uhabits/core/models/CheckmarkList.java b/uhabits-core/src/main/java/org/isoron/uhabits/core/models/CheckmarkList.java
index 5133fcf1c..fa90587d2 100644
--- a/uhabits-core/src/main/java/org/isoron/uhabits/core/models/CheckmarkList.java
+++ b/uhabits-core/src/main/java/org/isoron/uhabits/core/models/CheckmarkList.java
@@ -348,7 +348,7 @@ public abstract class CheckmarkList
         add(buildCheckmarksFromIntervals(reps, intervals));
     }
 
-    static class Interval
+    static final class Interval
     {
         final Timestamp begin;
 
diff --git a/uhabits-core/src/main/java/org/isoron/uhabits/core/models/Habit.java b/uhabits-core/src/main/java/org/isoron/uhabits/core/models/Habit.java
index 4a4d3e1a1..9d63c1476 100644
--- a/uhabits-core/src/main/java/org/isoron/uhabits/core/models/Habit.java
+++ b/uhabits-core/src/main/java/org/isoron/uhabits/core/models/Habit.java
@@ -353,7 +353,7 @@ public class Habit
         data.position = newPosition;
     }
 
-    public static class HabitData
+    public static final class HabitData
     {
         @NonNull
         public String name;
@@ -471,4 +471,13 @@ public class Habit
                 .toHashCode();
         }
     }
+
+    @Override
+    public String toString()
+    {
+        return new ToStringBuilder(this)
+            .append("id", id)
+            .append("data", data)
+            .toString();
+    }
 }
diff --git a/uhabits-core/src/main/java/org/isoron/uhabits/core/models/HabitMatcher.java b/uhabits-core/src/main/java/org/isoron/uhabits/core/models/HabitMatcher.java
index d3d536b04..d2b1801b2 100644
--- a/uhabits-core/src/main/java/org/isoron/uhabits/core/models/HabitMatcher.java
+++ b/uhabits-core/src/main/java/org/isoron/uhabits/core/models/HabitMatcher.java
@@ -19,10 +19,6 @@
 
 package org.isoron.uhabits.core.models;
 
-import android.support.annotation.*;
-
-import java.util.*;
-
 public class HabitMatcher
 {
     public static final HabitMatcher WITH_ALARM = new HabitMatcherBuilder()
@@ -36,22 +32,13 @@ public class HabitMatcher
 
     private final boolean completedAllowed;
 
-    private final List<Integer> allowedColors;
-
     public HabitMatcher(boolean allowArchived,
                         boolean reminderRequired,
-                        boolean completedAllowed,
-                        @NonNull List<Integer> allowedColors)
+                        boolean completedAllowed)
     {
         this.archivedAllowed = allowArchived;
         this.reminderRequired = reminderRequired;
         this.completedAllowed = completedAllowed;
-        this.allowedColors = allowedColors;
-    }
-
-    public List<Integer> getAllowedColors()
-    {
-        return allowedColors;
     }
 
     public boolean isArchivedAllowed()
@@ -74,7 +61,6 @@ public class HabitMatcher
         if (!isArchivedAllowed() && habit.isArchived()) return false;
         if (isReminderRequired() && !habit.hasReminder()) return false;
         if (!isCompletedAllowed() && habit.isCompletedToday()) return false;
-        if (!allowedColors.contains(habit.getColor())) return false;
         return true;
     }
 }
diff --git a/uhabits-core/src/main/java/org/isoron/uhabits/core/models/HabitMatcherBuilder.java b/uhabits-core/src/main/java/org/isoron/uhabits/core/models/HabitMatcherBuilder.java
index 68a9daf8b..9939816e2 100644
--- a/uhabits-core/src/main/java/org/isoron/uhabits/core/models/HabitMatcherBuilder.java
+++ b/uhabits-core/src/main/java/org/isoron/uhabits/core/models/HabitMatcherBuilder.java
@@ -19,10 +19,6 @@
 
 package org.isoron.uhabits.core.models;
 
-import org.isoron.uhabits.core.utils.*;
-
-import java.util.*;
-
 public class HabitMatcherBuilder
 {
     private boolean archivedAllowed = false;
@@ -31,20 +27,10 @@ public class HabitMatcherBuilder
 
     private boolean completedAllowed = true;
 
-    private List<Integer> allowedColors = allColors();
-
-    private static List<Integer> allColors()
-    {
-        List<Integer> colors = new ArrayList<>();
-        for(int i = 0; i < ColorConstants.CSV_PALETTE.length; i++)
-            colors.add(i);
-        return colors;
-    }
-
     public HabitMatcher build()
     {
         return new HabitMatcher(archivedAllowed, reminderRequired,
-            completedAllowed, allowedColors);
+            completedAllowed);
     }
 
     public HabitMatcherBuilder setArchivedAllowed(boolean archivedAllowed)
@@ -53,12 +39,6 @@ public class HabitMatcherBuilder
         return this;
     }
 
-    public HabitMatcherBuilder setAllowedColors(List<Integer> allowedColors)
-    {
-        this.allowedColors = allowedColors;
-        return this;
-    }
-
     public HabitMatcherBuilder setCompletedAllowed(boolean completedAllowed)
     {
         this.completedAllowed = completedAllowed;
diff --git a/uhabits-core/src/main/java/org/isoron/uhabits/core/models/HabitNotFoundException.java b/uhabits-core/src/main/java/org/isoron/uhabits/core/models/HabitNotFoundException.java
index c40204a1e..41e34ace8 100644
--- a/uhabits-core/src/main/java/org/isoron/uhabits/core/models/HabitNotFoundException.java
+++ b/uhabits-core/src/main/java/org/isoron/uhabits/core/models/HabitNotFoundException.java
@@ -20,19 +20,4 @@
 package org.isoron.uhabits.core.models;
 
 public class HabitNotFoundException extends RuntimeException {
-    public HabitNotFoundException() {
-        super();
-    }
-
-    public HabitNotFoundException(String message) {
-        super(message);
-    }
-
-    public HabitNotFoundException(Throwable cause) {
-        super(cause);
-    }
-
-    public HabitNotFoundException(String message, Throwable cause) {
-        super(message, cause);
-    }
 }
diff --git a/uhabits-core/src/main/java/org/isoron/uhabits/core/models/Score.java b/uhabits-core/src/main/java/org/isoron/uhabits/core/models/Score.java
index 550e96dab..93e03f5f2 100644
--- a/uhabits-core/src/main/java/org/isoron/uhabits/core/models/Score.java
+++ b/uhabits-core/src/main/java/org/isoron/uhabits/core/models/Score.java
@@ -93,4 +93,28 @@ public final class Score
             .append("value", value)
             .toString();
     }
+
+    @Override
+    public boolean equals(Object o)
+    {
+        if (this == o) return true;
+
+        if (o == null || getClass() != o.getClass()) return false;
+
+        Score score = (Score) o;
+
+        return new EqualsBuilder()
+            .append(value, score.value)
+            .append(timestamp, score.timestamp)
+            .isEquals();
+    }
+
+    @Override
+    public int hashCode()
+    {
+        return new HashCodeBuilder(17, 37)
+            .append(timestamp)
+            .append(value)
+            .toHashCode();
+    }
 }
diff --git a/uhabits-core/src/main/java/org/isoron/uhabits/core/models/Streak.java b/uhabits-core/src/main/java/org/isoron/uhabits/core/models/Streak.java
index e557eb4d3..00e27b075 100644
--- a/uhabits-core/src/main/java/org/isoron/uhabits/core/models/Streak.java
+++ b/uhabits-core/src/main/java/org/isoron/uhabits/core/models/Streak.java
@@ -69,4 +69,28 @@ public final class Streak
             .append("end", end)
             .toString();
     }
+
+    @Override
+    public boolean equals(Object o)
+    {
+        if (this == o) return true;
+
+        if (o == null || getClass() != o.getClass()) return false;
+
+        Streak streak = (Streak) o;
+
+        return new EqualsBuilder()
+            .append(start, streak.start)
+            .append(end, streak.end)
+            .isEquals();
+    }
+
+    @Override
+    public int hashCode()
+    {
+        return new HashCodeBuilder(17, 37)
+            .append(start)
+            .append(end)
+            .toHashCode();
+    }
 }
diff --git a/uhabits-core/src/main/java/org/isoron/uhabits/core/models/Timestamp.java b/uhabits-core/src/main/java/org/isoron/uhabits/core/models/Timestamp.java
index a4d8fc911..ba45b19cb 100644
--- a/uhabits-core/src/main/java/org/isoron/uhabits/core/models/Timestamp.java
+++ b/uhabits-core/src/main/java/org/isoron/uhabits/core/models/Timestamp.java
@@ -25,7 +25,7 @@ import java.util.*;
 
 import static java.util.Calendar.DAY_OF_WEEK;
 
-public class Timestamp
+public final class Timestamp
 {
 
     public static final long DAY_LENGTH = 86400000;
diff --git a/uhabits-core/src/main/java/org/isoron/uhabits/core/models/WeekdayList.java b/uhabits-core/src/main/java/org/isoron/uhabits/core/models/WeekdayList.java
index 93a209ac9..3c24e7814 100644
--- a/uhabits-core/src/main/java/org/isoron/uhabits/core/models/WeekdayList.java
+++ b/uhabits-core/src/main/java/org/isoron/uhabits/core/models/WeekdayList.java
@@ -23,7 +23,7 @@ import org.apache.commons.lang3.builder.*;
 
 import java.util.*;
 
-public class WeekdayList
+public final class WeekdayList
 {
     public static final WeekdayList EVERY_DAY = new WeekdayList(127);
 
diff --git a/uhabits-core/src/main/java/org/isoron/uhabits/core/models/sqlite/SQLiteHabitList.java b/uhabits-core/src/main/java/org/isoron/uhabits/core/models/sqlite/SQLiteHabitList.java
index 0960f2c97..bb16e1f49 100644
--- a/uhabits-core/src/main/java/org/isoron/uhabits/core/models/sqlite/SQLiteHabitList.java
+++ b/uhabits-core/src/main/java/org/isoron/uhabits/core/models/sqlite/SQLiteHabitList.java
@@ -74,13 +74,6 @@ public class SQLiteHabitList extends HabitList
         }
     }
 
-    public static SQLiteHabitList getInstance(
-        @NonNull ModelFactory modelFactory)
-    {
-        if (instance == null) instance = new SQLiteHabitList(modelFactory);
-        return instance;
-    }
-
     @Override
     public synchronized void add(@NonNull Habit habit)
     {
diff --git a/uhabits-core/src/main/java/org/isoron/uhabits/core/models/sqlite/records/HabitRecord.java b/uhabits-core/src/main/java/org/isoron/uhabits/core/models/sqlite/records/HabitRecord.java
index bf1d4cb7c..29e7ffb5c 100644
--- a/uhabits-core/src/main/java/org/isoron/uhabits/core/models/sqlite/records/HabitRecord.java
+++ b/uhabits-core/src/main/java/org/isoron/uhabits/core/models/sqlite/records/HabitRecord.java
@@ -21,7 +21,6 @@
 
 package org.isoron.uhabits.core.models.sqlite.records;
 
-import org.apache.commons.lang3.builder.*;
 import org.isoron.uhabits.core.database.*;
 import org.isoron.uhabits.core.models.*;
 
@@ -129,78 +128,4 @@ public class HabitRecord
                 new WeekdayList(reminderDays)));
         }
     }
-
-    @Override
-    public boolean equals(Object o)
-    {
-        if (this == o) return true;
-
-        if (o == null || getClass() != o.getClass()) return false;
-
-        HabitRecord that = (HabitRecord) o;
-
-        return new EqualsBuilder()
-            .appendSuper(super.equals(o))
-            .append(freqNum, that.freqNum)
-            .append(freqDen, that.freqDen)
-            .append(color, that.color)
-            .append(position, that.position)
-            .append(reminderDays, that.reminderDays)
-            .append(highlight, that.highlight)
-            .append(archived, that.archived)
-            .append(type, that.type)
-            .append(targetValue, that.targetValue)
-            .append(targetType, that.targetType)
-            .append(name, that.name)
-            .append(description, that.description)
-            .append(reminderHour, that.reminderHour)
-            .append(reminderMin, that.reminderMin)
-            .append(unit, that.unit)
-            .isEquals();
-    }
-
-    @Override
-    public int hashCode()
-    {
-        return new HashCodeBuilder(17, 37)
-            .appendSuper(super.hashCode())
-            .append(name)
-            .append(description)
-            .append(freqNum)
-            .append(freqDen)
-            .append(color)
-            .append(position)
-            .append(reminderHour)
-            .append(reminderMin)
-            .append(reminderDays)
-            .append(highlight)
-            .append(archived)
-            .append(type)
-            .append(targetValue)
-            .append(targetType)
-            .append(unit)
-            .toHashCode();
-    }
-
-    @Override
-    public String toString()
-    {
-        return new ToStringBuilder(this)
-            .append("name", name)
-            .append("description", description)
-            .append("freqNum", freqNum)
-            .append("freqDen", freqDen)
-            .append("color", color)
-            .append("position", position)
-            .append("reminderHour", reminderHour)
-            .append("reminderMin", reminderMin)
-            .append("reminderDays", reminderDays)
-            .append("highlight", highlight)
-            .append("archived", archived)
-            .append("type", type)
-            .append("targetValue", targetValue)
-            .append("targetType", targetType)
-            .append("unit", unit)
-            .toString();
-    }
 }
diff --git a/uhabits-core/src/main/java/org/isoron/uhabits/core/utils/StringUtils.java b/uhabits-core/src/main/java/org/isoron/uhabits/core/utils/StringUtils.java
index 2d8b3b7f7..62da96f8d 100644
--- a/uhabits-core/src/main/java/org/isoron/uhabits/core/utils/StringUtils.java
+++ b/uhabits-core/src/main/java/org/isoron/uhabits/core/utils/StringUtils.java
@@ -28,4 +28,9 @@ public class StringUtils
     {
         return new BigInteger(260, new Random()).toString(32).substring(0, 32);
     }
+
+    public static String removePointers(String original)
+    {
+        return original.replaceAll("@[0-9a-f]*", "@00000000");
+    }
 }
diff --git a/uhabits-core/src/test/java/org/isoron/uhabits/core/models/CheckmarkListTest.java b/uhabits-core/src/test/java/org/isoron/uhabits/core/models/CheckmarkListTest.java
index 4de458c05..e741b6fab 100644
--- a/uhabits-core/src/test/java/org/isoron/uhabits/core/models/CheckmarkListTest.java
+++ b/uhabits-core/src/test/java/org/isoron/uhabits/core/models/CheckmarkListTest.java
@@ -26,9 +26,12 @@ import org.junit.*;
 import java.io.*;
 import java.util.*;
 
+import nl.jqno.equalsverifier.*;
+
 import static org.hamcrest.MatcherAssert.*;
 import static org.hamcrest.core.IsEqual.*;
 import static org.isoron.uhabits.core.models.Checkmark.*;
+import static org.isoron.uhabits.core.utils.StringUtils.removePointers;
 
 public class CheckmarkListTest extends BaseUnitTest
 {
@@ -351,4 +354,34 @@ public class CheckmarkListTest extends BaseUnitTest
         DateUtils.setFixedLocalTime(
             FIXED_LOCAL_TIME + days * Timestamp.DAY_LENGTH);
     }
+
+    @Test
+    public void testToString() throws Exception
+    {
+        Timestamp t = Timestamp.ZERO.plus(100);
+        Checkmark checkmark = new Checkmark(t, 2);
+        String s = removePointers(checkmark.toString());
+        assertThat(s, equalTo(
+            "org.isoron.uhabits.core.models.Checkmark@00000000[" +
+            "timestamp=org.isoron.uhabits.core.models.Timestamp@00000000[unixTime=8640000000]," +
+            "value=2]"));
+
+
+        CheckmarkList.Interval interval =
+            new CheckmarkList.Interval(t, t.plus(1), t.plus(2));
+        s = removePointers(interval.toString());
+        assertThat(s, equalTo(
+            "org.isoron.uhabits.core.models.CheckmarkList$Interval@00000000[" +
+                "begin=org.isoron.uhabits.core.models.Timestamp@00000000[unixTime=8640000000]," +
+                "center=org.isoron.uhabits.core.models.Timestamp@00000000[unixTime=8726400000]," +
+                "end=org.isoron.uhabits.core.models.Timestamp@00000000[unixTime=8812800000]]"));
+    }
+
+    @Test
+    public void testEquals() throws Exception
+    {
+        EqualsVerifier.forClass(Checkmark.class).verify();
+        EqualsVerifier.forClass(Timestamp.class).verify();
+        EqualsVerifier.forClass(CheckmarkList.Interval.class).verify();
+    }
 }
diff --git a/uhabits-core/src/test/java/org/isoron/uhabits/core/models/HabitTest.java b/uhabits-core/src/test/java/org/isoron/uhabits/core/models/HabitTest.java
index 40dfa03e9..87b16fdf4 100644
--- a/uhabits-core/src/test/java/org/isoron/uhabits/core/models/HabitTest.java
+++ b/uhabits-core/src/test/java/org/isoron/uhabits/core/models/HabitTest.java
@@ -23,8 +23,11 @@ import org.isoron.uhabits.core.*;
 import org.junit.*;
 import org.junit.rules.*;
 
+import nl.jqno.equalsverifier.*;
+
 import static org.hamcrest.CoreMatchers.*;
 import static org.isoron.uhabits.core.utils.DateUtils.*;
+import static org.isoron.uhabits.core.utils.StringUtils.removePointers;
 import static org.junit.Assert.*;
 
 public class HabitTest extends BaseUnitTest
@@ -126,4 +129,43 @@ public class HabitTest extends BaseUnitTest
         assertThat(h.getUriString(),
             equalTo("content://org.isoron.uhabits/habit/0"));
     }
+
+    @Test
+    public void testEquals() throws Exception
+    {
+        EqualsVerifier
+            .forClass(Habit.HabitData.class)
+            .suppress(Warning.NONFINAL_FIELDS)
+            .verify();
+
+        EqualsVerifier.forClass(Repetition.class).verify();
+        EqualsVerifier.forClass(Score.class).verify();
+        EqualsVerifier.forClass(Streak.class).verify();
+        EqualsVerifier.forClass(Reminder.class).verify();
+        EqualsVerifier.forClass(WeekdayList.class).verify();
+    }
+
+    @Test
+    public void testToString() throws Exception
+    {
+        Habit h = modelFactory.buildHabit();
+        h.setReminder(new Reminder(22, 30, WeekdayList.EVERY_DAY));
+
+        String s = removePointers(h.toString());
+
+        String expected =
+            "org.isoron.uhabits.core.models.Habit@00000000[" +
+                "id=<null>," +
+                "data=org.isoron.uhabits.core.models.Habit$HabitData@00000000[" +
+                    "name=,description=," +
+                    "frequency=org.isoron.uhabits.core.models.Frequency@00000000[numerator=3,denominator=7]," +
+                    "color=8,archived=false,targetType=0,targetValue=100.0,type=0,unit=," +
+                    "reminder=org.isoron.uhabits.core.models.Reminder@00000000[" +
+                        "hour=22,minute=30," +
+                        "days=org.isoron.uhabits.core.models.WeekdayList@00000000[" +
+                            "weekdays={true,true,true,true,true,true,true}]]," +
+                    "position=0]]";
+
+        assertThat(s, equalTo(expected));
+    }
 }
\ No newline at end of file
diff --git a/uhabits-core/src/test/java/org/isoron/uhabits/core/models/RepetitionListTest.java b/uhabits-core/src/test/java/org/isoron/uhabits/core/models/RepetitionListTest.java
index 4259bcab1..1a9258e9c 100644
--- a/uhabits-core/src/test/java/org/isoron/uhabits/core/models/RepetitionListTest.java
+++ b/uhabits-core/src/test/java/org/isoron/uhabits/core/models/RepetitionListTest.java
@@ -30,6 +30,7 @@ import java.util.*;
 import static junit.framework.TestCase.assertFalse;
 import static org.hamcrest.MatcherAssert.assertThat;
 import static org.hamcrest.core.IsEqual.*;
+import static org.isoron.uhabits.core.utils.StringUtils.removePointers;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertTrue;
 import static org.mockito.Mockito.*;
@@ -186,4 +187,15 @@ public class RepetitionListTest extends BaseUnitTest
         verify(listener, times(2)).onModelChange();
         reset(listener);
     }
+
+    @Test
+    public void testToString() throws Exception
+    {
+        Repetition rep = new Repetition(Timestamp.ZERO.plus(100), 20);
+        String s = removePointers(rep.toString());
+        assertThat(s, equalTo(
+            "org.isoron.uhabits.core.models.Repetition@00000000[" +
+                "timestamp=org.isoron.uhabits.core.models.Timestamp@00000000[unixTime=8640000000]," +
+                "value=20]"));
+    }
 }
\ No newline at end of file
diff --git a/uhabits-core/src/test/java/org/isoron/uhabits/core/models/ScoreListTest.java b/uhabits-core/src/test/java/org/isoron/uhabits/core/models/ScoreListTest.java
index 54b63f5d6..3f2fd8783 100644
--- a/uhabits-core/src/test/java/org/isoron/uhabits/core/models/ScoreListTest.java
+++ b/uhabits-core/src/test/java/org/isoron/uhabits/core/models/ScoreListTest.java
@@ -26,8 +26,8 @@ import org.junit.*;
 import java.io.*;
 import java.util.*;
 
-import static org.hamcrest.CoreMatchers.*;
 import static org.hamcrest.MatcherAssert.*;
+import static org.hamcrest.core.IsEqual.*;
 import static org.hamcrest.number.IsCloseTo.*;
 
 public class ScoreListTest extends BaseUnitTest
diff --git a/uhabits-core/src/test/java/org/isoron/uhabits/core/models/ScoreTest.java b/uhabits-core/src/test/java/org/isoron/uhabits/core/models/ScoreTest.java
index 3c51146c6..4f083a04b 100644
--- a/uhabits-core/src/test/java/org/isoron/uhabits/core/models/ScoreTest.java
+++ b/uhabits-core/src/test/java/org/isoron/uhabits/core/models/ScoreTest.java
@@ -22,9 +22,12 @@ package org.isoron.uhabits.core.models;
 import org.isoron.uhabits.core.*;
 import org.junit.*;
 
-import static org.hamcrest.number.IsCloseTo.*;
-import static org.isoron.uhabits.core.models.Score.*;
-import static org.junit.Assert.*;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.core.IsEqual.equalTo;
+import static org.hamcrest.number.IsCloseTo.closeTo;
+import static org.isoron.uhabits.core.models.Score.compute;
+import static org.isoron.uhabits.core.utils.StringUtils.removePointers;
+
 
 public class ScoreTest extends BaseUnitTest
 {
@@ -66,4 +69,16 @@ public class ScoreTest extends BaseUnitTest
         assertThat(compute(freq, 0.5, check), closeTo(0.491192, E));
         assertThat(compute(freq, 0.75, check), closeTo(0.736788, E));
     }
+
+
+    @Test
+    public void testToString() throws Exception
+    {
+        Score score = new Score(Timestamp.ZERO.plus(100), 150.0);
+        String string = removePointers(score.toString());
+        assertThat(string, equalTo(
+            "org.isoron.uhabits.core.models.Score@00000000[" +
+            "timestamp=org.isoron.uhabits.core.models.Timestamp@00000000[unixTime=8640000000]," +
+            "value=150.0]"));
+    }
 }
diff --git a/uhabits-core/src/test/java/org/isoron/uhabits/core/models/StreakListTest.java b/uhabits-core/src/test/java/org/isoron/uhabits/core/models/StreakListTest.java
index e01a38b34..8103db9e6 100644
--- a/uhabits-core/src/test/java/org/isoron/uhabits/core/models/StreakListTest.java
+++ b/uhabits-core/src/test/java/org/isoron/uhabits/core/models/StreakListTest.java
@@ -26,8 +26,9 @@ import org.junit.*;
 import java.util.*;
 
 import static junit.framework.TestCase.*;
-import static org.hamcrest.CoreMatchers.*;
 import static org.hamcrest.MatcherAssert.*;
+import static org.hamcrest.core.IsEqual.*;
+import static org.isoron.uhabits.core.utils.StringUtils.*;
 import static org.mockito.Mockito.*;
 
 public class StreakListTest extends BaseUnitTest
@@ -117,4 +118,16 @@ public class StreakListTest extends BaseUnitTest
         s = streaks.getNewestComputed();
         assertNull(s);
     }
+
+    @Test
+    public void testToString() throws Exception
+    {
+        Timestamp time = Timestamp.ZERO.plus(100);
+        Streak streak = new Streak(time, time.plus(10));
+        String string = removePointers(streak.toString());
+        assertThat(string, equalTo(
+            "org.isoron.uhabits.core.models.Streak@00000000[" +
+            "start=org.isoron.uhabits.core.models.Timestamp@00000000[unixTime=8640000000]," +
+            "end=org.isoron.uhabits.core.models.Timestamp@00000000[unixTime=9504000000]]"));
+    }
 }
\ No newline at end of file