1/*
2 * Copyright (C) 2009 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.camera;
18
19import com.android.camera.gallery.IImage;
20import com.android.camera.gallery.IImageList;
21
22import android.content.Context;
23import android.graphics.Bitmap;
24import android.test.AndroidTestCase;
25
26/**
27 * BitmapManager's unit tests.
28 */
29public class BitmapManagerUnitTests extends AndroidTestCase {
30    IImageList mImageList;
31    IImage mImage;
32    BitmapManager mBitmapManager;
33    Context mContext;
34
35    private class DecodeThread extends Thread {
36        Bitmap bitmap;
37
38        public DecodeThread() {
39        }
40
41        @Override
42        public void run() {
43            bitmap = mImage.thumbBitmap(IImage.ROTATE_AS_NEEDED);
44        }
45
46        public Bitmap getBitmap() {
47            return bitmap;
48        }
49    }
50
51    @Override
52    public void setUp() {
53        mContext = getContext();
54        mBitmapManager = BitmapManager.instance();
55        mImageList = ImageManager.makeImageList(
56                mContext.getContentResolver(),
57                ImageManager.DataLocation.ALL,
58                ImageManager.INCLUDE_IMAGES,
59                ImageManager.SORT_DESCENDING,
60                null);
61        mImage = mImageList.getImageAt(0);
62    }
63
64    public void testSingleton() {
65        BitmapManager manager = BitmapManager.instance();
66        assertNotNull(manager);
67        assertNotNull(mBitmapManager);
68        assertSame(manager, mBitmapManager);
69    }
70
71    public void testCanThreadDecoding() {
72        Thread t = new DecodeThread();
73
74        // By default all threads can decode.
75        assertTrue(mBitmapManager.canThreadDecoding(t));
76
77        // Disallow thread t to decode.
78        mBitmapManager.cancelThreadDecoding(t, mContext.getContentResolver());
79        assertFalse(mBitmapManager.canThreadDecoding(t));
80
81        // Allow thread t to decode again.
82        mBitmapManager.allowThreadDecoding(t);
83        assertTrue(mBitmapManager.canThreadDecoding(t));
84    }
85
86    public void testDefaultAllowDecoding() {
87        DecodeThread t = new DecodeThread();
88        try {
89            t.start();
90            t.join();
91        } catch (InterruptedException ex) {
92        } finally {
93            assertNotNull(t.getBitmap());
94        }
95    }
96
97    public void testCancelDecoding() {
98        DecodeThread t = new DecodeThread();
99        mBitmapManager.cancelThreadDecoding(t, mContext.getContentResolver());
100        try {
101            t.start();
102            t.join();
103        } catch (InterruptedException ex) {
104        } finally {
105            assertNull(t.getBitmap());
106        }
107    }
108
109    public void testAllowDecoding() {
110        DecodeThread t = new DecodeThread();
111        mBitmapManager.cancelThreadDecoding(t, mContext.getContentResolver());
112        mBitmapManager.allowThreadDecoding(t);
113        try {
114            t.start();
115            t.join();
116        } catch (InterruptedException ex) {
117        } finally {
118            assertNotNull(t.getBitmap());
119        }
120    }
121
122    public void testThreadDecoding() {
123        DecodeThread t1 = new DecodeThread();
124        DecodeThread t2 = new DecodeThread();
125        mBitmapManager.allowThreadDecoding(t1);
126        mBitmapManager.cancelThreadDecoding(t2, mContext.getContentResolver());
127        t1.start();
128        t2.start();
129
130        try {
131            t1.join();
132            t2.join();
133        } catch (InterruptedException ex) {
134        } finally {
135            assertTrue(mBitmapManager.canThreadDecoding(t1));
136            assertNotNull(t1.getBitmap());
137            assertFalse(mBitmapManager.canThreadDecoding(t2));
138            assertNull(t2.getBitmap());
139        }
140    }
141
142    @Override
143    public String toString() {
144        return "BitmapManagerUnitTest";
145    }
146}
147