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
17package com.android.volley.toolbox;
18
19import android.graphics.Bitmap;
20import android.widget.ImageView;
21import com.android.volley.Request;
22import com.android.volley.RequestQueue;
23import org.junit.Assert;
24import org.junit.Before;
25import org.junit.Test;
26import org.junit.runner.RunWith;
27import org.robolectric.RobolectricTestRunner;
28
29import static org.junit.Assert.assertNotNull;
30import static org.mockito.Mockito.*;
31
32@RunWith(RobolectricTestRunner.class)
33public class ImageLoaderTest {
34    private RequestQueue mRequestQueue;
35    private ImageLoader.ImageCache mImageCache;
36    private ImageLoader mImageLoader;
37
38    @Before
39    public void setUp() {
40        mRequestQueue = mock(RequestQueue.class);
41        mImageCache = mock(ImageLoader.ImageCache.class);
42        mImageLoader = new ImageLoader(mRequestQueue, mImageCache);
43    }
44
45    @Test
46    public void isCachedChecksCache() throws Exception {
47        when(mImageCache.getBitmap(anyString())).thenReturn(null);
48        Assert.assertFalse(mImageLoader.isCached("http://foo", 0, 0));
49    }
50
51    @Test
52    public void getWithCacheHit() throws Exception {
53        Bitmap bitmap = Bitmap.createBitmap(1, 1, null);
54        ImageLoader.ImageListener listener = mock(ImageLoader.ImageListener.class);
55        when(mImageCache.getBitmap(anyString())).thenReturn(bitmap);
56        ImageLoader.ImageContainer ic = mImageLoader.get("http://foo", listener);
57        Assert.assertSame(bitmap, ic.getBitmap());
58        verify(listener).onResponse(ic, true);
59    }
60
61    @Test
62    public void getWithCacheMiss() throws Exception {
63        when(mImageCache.getBitmap(anyString())).thenReturn(null);
64        ImageLoader.ImageListener listener = mock(ImageLoader.ImageListener.class);
65        // Ask for the image to be loaded.
66        mImageLoader.get("http://foo", listener);
67        // Second pass to test deduping logic.
68        mImageLoader.get("http://foo", listener);
69        // Response callback should be called both times.
70        verify(listener, times(2)).onResponse(any(ImageLoader.ImageContainer.class), eq(true));
71        // But request should be enqueued only once.
72        verify(mRequestQueue, times(1)).add(any(Request.class));
73    }
74
75    @Test
76    public void publicMethods() throws Exception {
77        // Catch API breaking changes.
78        ImageLoader.getImageListener(null, -1, -1);
79        mImageLoader.setBatchedResponseDelay(1000);
80
81        assertNotNull(ImageLoader.class.getConstructor(RequestQueue.class,
82                ImageLoader.ImageCache.class));
83
84        assertNotNull(ImageLoader.class.getMethod("getImageListener", ImageView.class,
85                int.class, int.class));
86        assertNotNull(ImageLoader.class.getMethod("isCached", String.class, int.class, int.class));
87        assertNotNull(ImageLoader.class.getMethod("isCached", String.class, int.class, int.class,
88                ImageView.ScaleType.class));
89        assertNotNull(ImageLoader.class.getMethod("get", String.class,
90                ImageLoader.ImageListener.class));
91        assertNotNull(ImageLoader.class.getMethod("get", String.class,
92                ImageLoader.ImageListener.class, int.class, int.class));
93        assertNotNull(ImageLoader.class.getMethod("get", String.class,
94                ImageLoader.ImageListener.class, int.class, int.class, ImageView.ScaleType.class));
95        assertNotNull(ImageLoader.class.getMethod("setBatchedResponseDelay", int.class));
96
97        assertNotNull(ImageLoader.ImageListener.class.getMethod("onResponse",
98                ImageLoader.ImageContainer.class, boolean.class));
99    }
100}
101
102