1 /* 2 * Copyright (C) 2012 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 17 package com.android.contacts.util; 18 19 import android.graphics.Bitmap; 20 import android.test.AndroidTestCase; 21 import android.test.suitebuilder.annotation.SmallTest; 22 23 import java.io.ByteArrayOutputStream; 24 import java.io.IOException; 25 26 /** 27 * Tests for {@link com.android.contacts.util.BitmapUtil}. 28 */ 29 @SmallTest 30 public class BitmapUtilTests extends AndroidTestCase { testGetSmallerExtentFromBytes1()31 public void testGetSmallerExtentFromBytes1() throws Exception { 32 assertEquals(100, BitmapUtil.getSmallerExtentFromBytes(createJpegRawData(100, 100))); 33 assertEquals(100, BitmapUtil.getSmallerExtentFromBytes(createPngRawData(100, 100))); 34 } 35 testGetSmallerExtentFromBytes2()36 public void testGetSmallerExtentFromBytes2() throws Exception { 37 assertEquals(50, BitmapUtil.getSmallerExtentFromBytes(createJpegRawData(200, 50))); 38 assertEquals(50, BitmapUtil.getSmallerExtentFromBytes(createPngRawData(200, 50))); 39 } 40 testGetSmallerExtentFromBytes3()41 public void testGetSmallerExtentFromBytes3() throws Exception { 42 assertEquals(40, BitmapUtil.getSmallerExtentFromBytes(createJpegRawData(40, 150))); 43 assertEquals(40, BitmapUtil.getSmallerExtentFromBytes(createPngRawData(40, 150))); 44 } 45 testFindOptimalSampleSizeExact()46 public void testFindOptimalSampleSizeExact() throws Exception { 47 assertEquals(1, BitmapUtil.findOptimalSampleSize(512, 512)); 48 } 49 testFindOptimalSampleSizeBigger()50 public void testFindOptimalSampleSizeBigger() throws Exception { 51 assertEquals(1, BitmapUtil.findOptimalSampleSize(512, 1024)); 52 } 53 testFindOptimalSampleSizeSmaller1()54 public void testFindOptimalSampleSizeSmaller1() throws Exception { 55 assertEquals(2, BitmapUtil.findOptimalSampleSize(512, 256)); 56 } 57 testFindOptimalSampleSizeSmaller2()58 public void testFindOptimalSampleSizeSmaller2() throws Exception { 59 assertEquals(2, BitmapUtil.findOptimalSampleSize(512, 230)); 60 } 61 testFindOptimalSampleSizeSmaller3()62 public void testFindOptimalSampleSizeSmaller3() throws Exception { 63 assertEquals(4, BitmapUtil.findOptimalSampleSize(512, 129)); 64 } 65 testFindOptimalSampleSizeSmaller4()66 public void testFindOptimalSampleSizeSmaller4() throws Exception { 67 assertEquals(4, BitmapUtil.findOptimalSampleSize(512, 128)); 68 } 69 testFindOptimalSampleSizeUnknownOriginal()70 public void testFindOptimalSampleSizeUnknownOriginal() throws Exception { 71 assertEquals(1, BitmapUtil.findOptimalSampleSize(-1, 128)); 72 } 73 testFindOptimalSampleSizeUnknownTarget()74 public void testFindOptimalSampleSizeUnknownTarget() throws Exception { 75 assertEquals(1, BitmapUtil.findOptimalSampleSize(128, -1)); 76 } 77 testDecodeWithSampleSize1()78 public void testDecodeWithSampleSize1() throws IOException { 79 assertBitmapSize(128, 64, BitmapUtil.decodeBitmapFromBytes(createJpegRawData(128, 64), 1)); 80 assertBitmapSize(128, 64, BitmapUtil.decodeBitmapFromBytes(createPngRawData(128, 64), 1)); 81 } 82 testDecodeWithSampleSize2()83 public void testDecodeWithSampleSize2() throws IOException { 84 assertBitmapSize(64, 32, BitmapUtil.decodeBitmapFromBytes(createJpegRawData(128, 64), 2)); 85 assertBitmapSize(64, 32, BitmapUtil.decodeBitmapFromBytes(createPngRawData(128, 64), 2)); 86 } 87 testDecodeWithSampleSize2a()88 public void testDecodeWithSampleSize2a() throws IOException { 89 assertBitmapSize(25, 20, BitmapUtil.decodeBitmapFromBytes(createJpegRawData(50, 40), 2)); 90 assertBitmapSize(25, 20, BitmapUtil.decodeBitmapFromBytes(createPngRawData(50, 40), 2)); 91 } 92 testDecodeWithSampleSize4()93 public void testDecodeWithSampleSize4() throws IOException { 94 assertBitmapSize(32, 16, BitmapUtil.decodeBitmapFromBytes(createJpegRawData(128, 64), 4)); 95 assertBitmapSize(32, 16, BitmapUtil.decodeBitmapFromBytes(createPngRawData(128, 64), 4)); 96 } 97 assertBitmapSize(int expectedWidth, int expectedHeight, Bitmap bitmap)98 private void assertBitmapSize(int expectedWidth, int expectedHeight, Bitmap bitmap) { 99 assertEquals(expectedWidth, bitmap.getWidth()); 100 assertEquals(expectedHeight, bitmap.getHeight()); 101 } 102 createJpegRawData(int sourceWidth, int sourceHeight)103 private byte[] createJpegRawData(int sourceWidth, int sourceHeight) throws IOException { 104 return createRawData(Bitmap.CompressFormat.JPEG, sourceWidth, sourceHeight); 105 } 106 createPngRawData(int sourceWidth, int sourceHeight)107 private byte[] createPngRawData(int sourceWidth, int sourceHeight) throws IOException { 108 return createRawData(Bitmap.CompressFormat.PNG, sourceWidth, sourceHeight); 109 } 110 createRawData(Bitmap.CompressFormat format, int sourceWidth, int sourceHeight)111 private byte[] createRawData(Bitmap.CompressFormat format, int sourceWidth, 112 int sourceHeight) throws IOException { 113 // Create a temp bitmap as our source 114 Bitmap b = Bitmap.createBitmap(sourceWidth, sourceHeight, Bitmap.Config.ARGB_8888); 115 ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); 116 b.compress(format, 50, outputStream); 117 final byte[] data = outputStream.toByteArray(); 118 outputStream.close(); 119 return data; 120 } 121 } 122