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      1 /*
      2  * Copyright 2018 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 
     17 package androidx.palette.graphics;
     18 
     19 import static org.junit.Assert.assertTrue;
     20 
     21 import android.support.test.filters.SmallTest;
     22 import android.support.test.runner.AndroidJUnit4;
     23 
     24 import org.junit.Test;
     25 import org.junit.runner.RunWith;
     26 
     27 @RunWith(AndroidJUnit4.class)
     28 public class MaxColorsTest {
     29 
     30     @Test
     31     @SmallTest
     32     public void testMaxColorCount32() {
     33         testMaxColorCount(32);
     34     }
     35 
     36     @Test
     37     @SmallTest
     38     public void testMaxColorCount1() {
     39         testMaxColorCount(1);
     40     }
     41 
     42     @Test
     43     @SmallTest
     44     public void testMaxColorCount15() {
     45         testMaxColorCount(15);
     46     }
     47 
     48     private void testMaxColorCount(int colorCount) {
     49         Palette newPalette = Palette.from(TestUtils.loadSampleBitmap())
     50                 .maximumColorCount(colorCount)
     51                 .generate();
     52         assertTrue(newPalette.getSwatches().size() <= colorCount);
     53     }
     54 }
     55