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package com.bumptech.glide.resize.bitmap_recycle;
import android.graphics.Bitmap;
import android.test.AndroidTestCase;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
import static android.content.ComponentCallbacks2.TRIM_MEMORY_BACKGROUND;
import static android.content.ComponentCallbacks2.TRIM_MEMORY_COMPLETE;
import static android.content.ComponentCallbacks2.TRIM_MEMORY_MODERATE;
public class LruBitmapPoolTest extends AndroidTestCase {
private static final int MAX_SIZE = 10;
private MockStrategy strategy;
private LruBitmapPool pool;
@Override
protected void setUp() throws Exception {
strategy = new MockStrategy();
pool = new LruBitmapPool(MAX_SIZE, strategy);
}
public void testICanAddAndGetABitmap() {
fillPool(pool, 1);
Bitmap bitmap = Bitmap.createBitmap(100, 100, Bitmap.Config.ARGB_8888);
pool.put(bitmap);
assertNotNull(pool.get(100, 100, Bitmap.Config.ARGB_8888));
}
public void testImmutableBitmapsAreNotAdded() {
pool.put(Bitmap.createBitmap(100, 100, Bitmap.Config.ARGB_8888).copy(Bitmap.Config.ARGB_8888, false));
assertEquals(0, strategy.bitmaps.size());
}
public void testItIsSizeLimited() {
fillPool(pool, MAX_SIZE + 2);
assertEquals(2, strategy.numRemoves);
}
public void testBitmapLargerThanPoolIsNotAdded() {
strategy = new MockStrategy() {
@Override
public int getSize(Bitmap bitmap) {
return 4;
}
};
pool = new LruBitmapPool(3, strategy);
pool.put(Bitmap.createBitmap(100, 100, Bitmap.Config.ARGB_8888));
assertEquals(0, strategy.numRemoves);
assertEquals(0, strategy.numPuts);
}
public void testClearMemoryRemovesAllBitmaps() {
fillPool(pool, MAX_SIZE);
pool.clearMemory();
assertEquals(MAX_SIZE, strategy.numRemoves);
}
public void testEvictedBitmapsAreRecycled() {
fillPool(pool, MAX_SIZE);
List<Bitmap> bitmaps = new ArrayList<Bitmap>(MAX_SIZE);
for (Bitmap b : strategy.bitmaps) {
bitmaps.add(b);
}
pool.clearMemory();
for (Bitmap b : bitmaps) {
assertTrue(b.isRecycled());
}
}
public void testTrimMemoryBackgroundOrLessRemovesHalfOfBitmaps() {
testTrimMemory(MAX_SIZE, TRIM_MEMORY_BACKGROUND, MAX_SIZE / 2);
}
public void testTrimMemoryBackgroundOrLessRemovesNoBitmapsIfPoolLessThanHalfFull() {
testTrimMemory(MAX_SIZE / 2, TRIM_MEMORY_BACKGROUND, 0);
}
public void testTrimMemoryModerateOrGreaterRemovesAllBitmaps() {
for (int trimLevel : new int[] { TRIM_MEMORY_MODERATE, TRIM_MEMORY_COMPLETE }) {
testTrimMemory(MAX_SIZE, trimLevel, MAX_SIZE);
}
}
private void testTrimMemory(int fillSize, int trimLevel, int expectedSize) {
MockStrategy strategy = new MockStrategy();
LruBitmapPool pool = new LruBitmapPool(MAX_SIZE, strategy);
fillPool(pool, fillSize);
pool.trimMemory(trimLevel);
assertEquals("Failed level=" + trimLevel, expectedSize, strategy.numRemoves);
}
private void fillPool(LruBitmapPool pool, int fillCount) {
for (int i = 0; i < fillCount; i++) {
pool.put(Bitmap.createBitmap(100, 100, Bitmap.Config.ARGB_8888));
}
}
private static final int getSize(Bitmap bitmap) {
return bitmap.getRowBytes() * bitmap.getHeight();
}
private static class MockStrategy implements LruPoolStrategy {
private LinkedList<Bitmap> bitmaps = new LinkedList<Bitmap>();
private int numRemoves;
private int numPuts;
@Override
public void put(Bitmap bitmap) {
numPuts++;
bitmaps.add(bitmap);
}
@Override
public Bitmap get(int width, int height, Bitmap.Config config) {
return bitmaps.removeLast();
}
@Override
public Bitmap removeLast() {
numRemoves++;
return bitmaps.removeLast();
}
@Override
public String logBitmap(Bitmap bitmap) {
return null;
}
@Override
public String logBitmap(int width, int height, Bitmap.Config config) {
return null;
}
@Override
public int getSize(Bitmap bitmap) {
return 1;
}
}
}
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