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/*
* Copyright (C) 2023 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 com.android.quickstep;
import static junit.framework.Assert.assertFalse;
import static junit.framework.Assert.assertTrue;
import static org.mockito.ArgumentMatchers.anyInt;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import android.content.Context;
import android.content.res.Resources;
import androidx.test.filters.SmallTest;
import com.android.launcher3.R;
import com.android.quickstep.util.TaskKeyCache;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import java.util.concurrent.Executor;
@SmallTest
public class TaskThumbnailCacheTest {
@Mock
private Context mContext;
@Mock
private Resources mResource;
@Mock
private TaskKeyCache mTaskKeyCache;
@Before
public void setup() throws NoSuchFieldException {
MockitoAnnotations.initMocks(this);
when(mContext.getResources()).thenReturn(mResource);
}
@Test
public void increaseCacheSize() {
// Mock a cache size increase from 3 to 8
when(mTaskKeyCache.getMaxSize()).thenReturn(3);
when(mResource.getInteger((R.integer.recentsThumbnailCacheSize))).thenReturn(8);
TaskThumbnailCache thumbnailCache = new TaskThumbnailCache(mContext, mock(Executor.class),
mTaskKeyCache);
// Preload is needed when increasing size
assertTrue(thumbnailCache.updateCacheSizeAndRemoveExcess());
verify(mTaskKeyCache, times(1)).updateCacheSizeAndRemoveExcess(8);
}
@Test
public void decreaseCacheSize() {
// Mock a cache size decrease from 8 to 3
when(mTaskKeyCache.getMaxSize()).thenReturn(8);
when(mResource.getInteger((R.integer.recentsThumbnailCacheSize))).thenReturn(3);
TaskThumbnailCache thumbnailCache = new TaskThumbnailCache(mContext, mock(Executor.class),
mTaskKeyCache);
// Preload is not needed when decreasing size
assertFalse(thumbnailCache.updateCacheSizeAndRemoveExcess());
verify(mTaskKeyCache, times(1)).updateCacheSizeAndRemoveExcess(3);
}
@Test
public void keepSameCacheSize() {
when(mTaskKeyCache.getMaxSize()).thenReturn(3);
when(mResource.getInteger((R.integer.recentsThumbnailCacheSize))).thenReturn(3);
TaskThumbnailCache thumbnailCache = new TaskThumbnailCache(mContext, mock(Executor.class),
mTaskKeyCache);
// Preload is not needed when it has the same cache size
assertFalse(thumbnailCache.updateCacheSizeAndRemoveExcess());
verify(mTaskKeyCache, never()).updateCacheSizeAndRemoveExcess(anyInt());
}
}
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