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      1 /*
      2  * Copyright (C) 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 com.android.settingslib.utils;
     18 
     19 import static com.google.common.truth.Truth.assertThat;
     20 
     21 import static junit.framework.Assert.assertTrue;
     22 
     23 import static org.mockito.Mockito.doReturn;
     24 import static org.mockito.Mockito.mock;
     25 import static org.mockito.Mockito.spy;
     26 import static org.mockito.Mockito.times;
     27 import static org.mockito.Mockito.verify;
     28 
     29 import android.content.Context;
     30 import android.graphics.drawable.Drawable;
     31 import android.graphics.drawable.Icon;
     32 
     33 import org.junit.Before;
     34 import org.junit.Test;
     35 import org.junit.runner.RunWith;
     36 import org.robolectric.RobolectricTestRunner;
     37 import org.robolectric.RuntimeEnvironment;
     38 
     39 @RunWith(RobolectricTestRunner.class)
     40 public class IconCacheTest {
     41     private Icon mIcon;
     42     private Context mContext;
     43     private IconCache mIconCache;
     44 
     45     @Before
     46     public void setUp() {
     47         mContext = spy(RuntimeEnvironment.application);
     48         mIcon = mock(Icon.class);
     49         Drawable drawable = mock(Drawable.class);
     50         doReturn(drawable).when(mIcon).loadDrawable(mContext);
     51         mIconCache = new IconCache(mContext);
     52     }
     53 
     54     @Test
     55     public void testGetIcon_iconisNull() {
     56         assertThat(mIconCache.getIcon(null)).isNull();
     57     }
     58 
     59     @Test
     60     public void testGetIcon_iconAlreadyLoaded() {
     61         mIconCache.getIcon(mIcon);
     62         verify(mIcon, times(1)).loadDrawable(mContext);
     63         mIconCache.getIcon(mIcon);
     64         verify(mIcon, times(1)).loadDrawable(mContext);
     65     }
     66 
     67     @Test
     68     public void testGetIcon_iconLoadedFirstTime() {
     69         mIconCache.getIcon(mIcon);
     70         assertTrue(mIconCache.mMap.containsKey(mIcon));
     71     }
     72 }
     73