Test custom views with transparent background

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

@@ -54,6 +54,13 @@ public class HabitFrequencyViewTest extends ViewTest
         assertRenders(view, "HabitFrequencyView/render.png");
     }
 
+    @Test
+    public void render_withTransparentBackground() throws Throwable
+    {
+        view.setIsBackgroundTransparent(true);
+        assertRenders(view, "HabitFrequencyView/renderTransparent.png");
+    }
+
     @Test
     public void render_withDifferentSize() throws Throwable
     {

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

@@ -61,6 +61,13 @@ public class HabitHistoryViewTest extends ViewTest
         assertRenders(view, "HabitHistoryView/render.png");
     }
 
+    @Test
+    public void render_withTransparentBackground() throws Throwable
+    {
+        view.setIsBackgroundTransparent(true);
+        assertRenders(view, "HabitHistoryView/renderTransparent.png");
+    }
+
     @Test
     public void render_withDifferentSize() throws Throwable
     {

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

@@ -58,6 +58,13 @@ public class HabitScoreViewTest extends ViewTest
         assertRenders(view, "HabitScoreView/render.png");
     }
 
+    @Test
+    public void render_withTransparentBackground() throws Throwable
+    {
+        view.setIsBackgroundTransparent(true);
+        assertRenders(view, "HabitScoreView/renderTransparent.png");
+    }
+
     @Test
     public void render_withDifferentSize() throws Throwable
     {

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

@@ -55,6 +55,13 @@ public class HabitStreakViewTest extends ViewTest
         assertRenders(view, "HabitStreakView/render.png");
     }
 
+    @Test
+    public void render_withTransparentBackground() throws Throwable
+    {
+        view.setIsBackgroundTransparent(true);
+        assertRenders(view, "HabitStreakView/renderTransparent.png"); 
+    }
+
     @Test
     public void render_withSmallSize() throws Throwable
     {