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      1 /*
      2  * Copyright (C) 2017 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 android.app;
     18 
     19 import static com.android.internal.util.NotificationColorUtil.satisfiesTextContrast;
     20 
     21 import static org.junit.Assert.assertTrue;
     22 
     23 import android.content.Context;
     24 import android.media.session.MediaSession;
     25 import android.support.test.InstrumentationRegistry;
     26 import android.support.test.filters.SmallTest;
     27 import android.support.test.runner.AndroidJUnit4;
     28 
     29 import com.android.internal.util.NotificationColorUtil;
     30 
     31 import org.junit.Before;
     32 import org.junit.Test;
     33 import org.junit.runner.RunWith;
     34 
     35 @RunWith(AndroidJUnit4.class)
     36 @SmallTest
     37 public class NotificationTest {
     38 
     39     private Context mContext;
     40 
     41     @Before
     42     public void setUp() {
     43         mContext = InstrumentationRegistry.getContext();
     44     }
     45 
     46     @Test
     47     public void testColorSatisfiedWhenBgDarkTextDarker() {
     48         Notification.Builder builder = getMediaNotification();
     49         builder.build();
     50 
     51         // An initial guess where the foreground color is actually darker than an already dark bg
     52         int backgroundColor = 0xff585868;
     53         int initialForegroundColor = 0xff505868;
     54         builder.setColorPalette(backgroundColor, initialForegroundColor);
     55         int primaryTextColor = builder.getPrimaryTextColor();
     56         assertTrue(satisfiesTextContrast(primaryTextColor, backgroundColor));
     57         int secondaryTextColor = builder.getSecondaryTextColor();
     58         assertTrue(satisfiesTextContrast(secondaryTextColor, backgroundColor));
     59     }
     60 
     61     private Notification.Builder getMediaNotification() {
     62         MediaSession session = new MediaSession(mContext, "test");
     63         return new Notification.Builder(mContext, "color")
     64                 .setSmallIcon(com.android.internal.R.drawable.emergency_icon)
     65                 .setContentTitle("Title")
     66                 .setContentText("Text")
     67                 .setStyle(new Notification.MediaStyle().setMediaSession(session.getSessionToken()));
     68     }
     69 }
     70