1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.support.v7.graphics;
18
19import static android.support.v7.graphics.TestUtils.loadSampleBitmap;
20
21import static org.junit.Assert.assertEquals;
22
23import android.graphics.Bitmap;
24import android.support.test.filters.MediumTest;
25import android.support.test.runner.AndroidJUnit4;
26
27import org.junit.Test;
28import org.junit.runner.RunWith;
29
30@RunWith(AndroidJUnit4.class)
31public class ConsistencyTest {
32
33    private static final int NUMBER_TRIALS = 10;
34
35    @Test
36    @MediumTest
37    public void testConsistency() {
38        Palette lastPalette = null;
39        final Bitmap bitmap = loadSampleBitmap();
40
41        for (int i = 0; i < NUMBER_TRIALS; i++) {
42            Palette newPalette = Palette.from(bitmap).generate();
43            if (lastPalette != null) {
44                assetPalettesEqual(lastPalette, newPalette);
45            }
46            lastPalette = newPalette;
47        }
48    }
49
50    private static void assetPalettesEqual(Palette p1, Palette p2) {
51        assertEquals(p1.getVibrantSwatch(), p2.getVibrantSwatch());
52        assertEquals(p1.getLightVibrantSwatch(), p2.getLightVibrantSwatch());
53        assertEquals(p1.getDarkVibrantSwatch(), p2.getDarkVibrantSwatch());
54        assertEquals(p1.getMutedSwatch(), p2.getMutedSwatch());
55        assertEquals(p1.getLightMutedSwatch(), p2.getLightMutedSwatch());
56        assertEquals(p1.getDarkMutedSwatch(), p2.getDarkMutedSwatch());
57    }
58}
59