1 files changed, 58 insertions, 0 deletions
diff --git a/android/support/v7/graphics/ConsistencyTest.java b/android/support/v7/graphics/ConsistencyTest.java
new file mode 100644
index 00000000..d9ac12ee
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+++ b/android/support/v7/graphics/ConsistencyTest.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * 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.
+ */
+
+package android.support.v7.graphics;
+
+import static android.support.v7.graphics.TestUtils.loadSampleBitmap;
+
+import static org.junit.Assert.assertEquals;
+
+import android.graphics.Bitmap;
+import android.support.test.filters.MediumTest;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+@RunWith(AndroidJUnit4.class)
+public class ConsistencyTest {
+
+    private static final int NUMBER_TRIALS = 10;
+
+    @Test
+    @MediumTest
+    public void testConsistency() {
+        Palette lastPalette = null;
+        final Bitmap bitmap = loadSampleBitmap();
+
+        for (int i = 0; i < NUMBER_TRIALS; i++) {
+            Palette newPalette = Palette.from(bitmap).generate();
+            if (lastPalette != null) {
+                assetPalettesEqual(lastPalette, newPalette);
+            }
+            lastPalette = newPalette;
+        }
+    }
+
+    private static void assetPalettesEqual(Palette p1, Palette p2) {
+        assertEquals(p1.getVibrantSwatch(), p2.getVibrantSwatch());
+        assertEquals(p1.getLightVibrantSwatch(), p2.getLightVibrantSwatch());
+        assertEquals(p1.getDarkVibrantSwatch(), p2.getDarkVibrantSwatch());
+        assertEquals(p1.getMutedSwatch(), p2.getMutedSwatch());
+        assertEquals(p1.getLightMutedSwatch(), p2.getLightMutedSwatch());
+        assertEquals(p1.getDarkMutedSwatch(), p2.getDarkMutedSwatch());
+    }
+}