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      1 /*
      2  * Copyright (C) 2015 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 package com.android.messaging.datamodel.media;
     17 
     18 import android.test.suitebuilder.annotation.SmallTest;
     19 
     20 import com.android.messaging.BugleTestCase;
     21 import com.android.messaging.FakeFactory;
     22 import com.android.messaging.datamodel.MemoryCacheManager;
     23 import com.android.messaging.datamodel.media.MediaResourceManager.MediaResourceLoadListener;
     24 
     25 import java.util.concurrent.CountDownLatch;
     26 
     27 @SmallTest
     28 public class MediaResourceManagerTest extends BugleTestCase {
     29     private static final int KB = 1024;
     30 
     31     // Loaded image resource from the MediaResourceManager callback.
     32     private FakeImageResource mImageResource;
     33     private BindableMediaRequest<FakeImageResource> mImageRequest;
     34 
     35     @Override
     36     protected void setUp() throws Exception {
     37         super.setUp();
     38         FakeFactory.register(getTestContext())
     39                 .withMemoryCacheManager(new MemoryCacheManager())
     40                 .withMediaCacheManager(new FakeMediaCacheManager());
     41     }
     42 
     43     public void testLoadFromCache() {
     44         final MediaResourceManager mediaResourceManager =
     45                 new MediaResourceManager();
     46         MediaCacheManager.get().reclaim();
     47         assertNotNull(mediaResourceManager);
     48 
     49         // Load one image of 1KB
     50         loadImage(mediaResourceManager, "image1", 1 * KB, false /* shouldBeCached */, false);
     51         assertEquals("image1", mImageResource.getImageId());
     52         final FakeImageResource loadedResource = mImageResource;
     53 
     54         // Load the same image.
     55         loadImage(mediaResourceManager, "image1", 1 * KB, true /* shouldBeCached */, false);
     56         assertEquals(loadedResource, mImageResource);
     57     }
     58 
     59     public void testCacheEviction() {
     60         final MediaResourceManager mediaResourceManager =
     61                 new MediaResourceManager();
     62         MediaCacheManager.get().reclaim();
     63         assertNotNull(mediaResourceManager);
     64 
     65         // Load one image of 1KB
     66         loadImage(mediaResourceManager, "image1", 1 * KB, false /* shouldBeCached */, false);
     67         assertEquals("image1", mImageResource.getImageId());
     68 
     69         // Load another image
     70         loadImage(mediaResourceManager, "image2", 2 * KB, false /* shouldBeCached */, false);
     71         assertEquals("image2", mImageResource.getImageId());
     72 
     73         // Load another image. This should fill the cache and cause eviction of image1.
     74         loadImage(mediaResourceManager, "image3", 2 * KB, false /* shouldBeCached */, false);
     75         assertEquals("image3", mImageResource.getImageId());
     76 
     77         // Load image1. It shouldn't be cached any more.
     78         loadImage(mediaResourceManager, "image1", 1 * KB, false /* shouldBeCached */, false);
     79         assertEquals("image1", mImageResource.getImageId());
     80     }
     81 
     82     public void testReclaimMemoryFromMediaCache() {
     83         final MediaResourceManager mediaResourceManager =
     84                 new MediaResourceManager();
     85         MediaCacheManager.get().reclaim();
     86         assertNotNull(mediaResourceManager);
     87 
     88         // Load one image of 1KB
     89         loadImage(mediaResourceManager, "image1", 1 * KB, false /* shouldBeCached */, false);
     90         assertEquals("image1", mImageResource.getImageId());
     91 
     92         // Purge everything from the cache, now the image should no longer be cached.
     93         MediaCacheManager.get().reclaim();
     94 
     95         // The image resource should have no ref left.
     96         assertEquals(0, mImageResource.getRefCount());
     97         assertTrue(mImageResource.isClosed());
     98         loadImage(mediaResourceManager, "image1", 1 * KB, false /* shouldBeCached */, false);
     99         assertEquals("image1", mImageResource.getImageId());
    100     }
    101 
    102     public void testLoadInvalidImage() {
    103         final MediaResourceManager mediaResourceManager =
    104                 new MediaResourceManager();
    105         MediaCacheManager.get().reclaim();
    106         assertNotNull(mediaResourceManager);
    107 
    108         // Test the failure case with invalid resource.
    109         loadImage(mediaResourceManager, FakeImageRequest.INVALID_KEY, 1 * KB, false,
    110                 true /* shouldFail */);
    111     }
    112 
    113     public void testLoadImageSynchronously() {
    114         final MediaResourceManager mediaResourceManager =
    115                 new MediaResourceManager();
    116         MediaCacheManager.get().reclaim();
    117         assertNotNull(mediaResourceManager);
    118 
    119         // Test a normal sync load.
    120         final FakeImageRequest request = new FakeImageRequest("image1", 1 * KB);
    121         final FakeImageResource resource = mediaResourceManager.requestMediaResourceSync(request);
    122         assertNotNull(resource);
    123         assertFalse(resource.isClosed());
    124         assertNotSame(0, resource.getRefCount());
    125         resource.release();
    126 
    127         // Test a failed sync load.
    128         final FakeImageRequest invalidRequest =
    129                 new FakeImageRequest(FakeImageRequest.INVALID_KEY, 1 * KB);
    130         assertNull(mediaResourceManager.requestMediaResourceSync(invalidRequest));
    131     }
    132 
    133     private void loadImage(final MediaResourceManager manager, final String key,
    134             final int size, final boolean shouldBeCached, final boolean shouldFail) {
    135         try {
    136             final CountDownLatch signal = new CountDownLatch(1);
    137             mImageRequest = AsyncMediaRequestWrapper.createWith(new FakeImageRequest(key, size),
    138                     createAssertListener(shouldBeCached, shouldFail, signal));
    139             mImageRequest.bind("1");
    140             manager.requestMediaResourceAsync(mImageRequest);
    141 
    142             // Wait for the asynchronous callback before proceeding.
    143             signal.await();
    144         } catch (final InterruptedException e) {
    145             fail("Something interrupted the signal await.");
    146         }
    147     }
    148 
    149     private MediaResourceLoadListener<FakeImageResource> createAssertListener(
    150             final boolean shouldBeCached, final boolean shouldFail, final CountDownLatch signal) {
    151         return new MediaResourceLoadListener<FakeImageResource>() {
    152             @Override
    153             public void onMediaResourceLoaded(final MediaRequest<FakeImageResource> request,
    154                     final FakeImageResource resource, final boolean isCached) {
    155                 assertEquals(mImageRequest, request);
    156                 assertNotNull(resource);
    157                 assertFalse(resource.isClosed());
    158                 assertNotSame(0, resource.getRefCount());
    159                 assertFalse(shouldFail);
    160                 assertEquals(shouldBeCached, resource.getCached());
    161                 resource.setCached(true);
    162                 mImageResource = resource;
    163                 signal.countDown();
    164             }
    165 
    166             @Override
    167             public void onMediaResourceLoadError(
    168                     final MediaRequest<FakeImageResource> request, final Exception exception) {
    169                 assertTrue(shouldFail);
    170                 mImageResource = null;
    171                 signal.countDown();
    172             }};
    173     }
    174 }
    175