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 22 import androidx.test.filters.SmallTest; 23 24 import java.io.ByteArrayOutputStream; 25 import java.io.IOException; 26 27 /** 28 * Tests for {@link com.android.contacts.util.BitmapUtil}. 29 */ 30 @SmallTest 31 public class BitmapUtilTests extends AndroidTestCase { testGetSmallerExtentFromBytes1()32 public void testGetSmallerExtentFromBytes1() throws Exception { 33 assertEquals(100, BitmapUtil.getSmallerExtentFromBytes(createJpegRawData(100, 100))); 34 assertEquals(100, BitmapUtil.getSmallerExtentFromBytes(createPngRawData(100, 100))); 35 } 36 testGetSmallerExtentFromBytes2()37 public void testGetSmallerExtentFromBytes2() throws Exception { 38 assertEquals(50, BitmapUtil.getSmallerExtentFromBytes(createJpegRawData(200, 50))); 39 assertEquals(50, BitmapUtil.getSmallerExtentFromBytes(createPngRawData(200, 50))); 40 } 41 testGetSmallerExtentFromBytes3()42 public void testGetSmallerExtentFromBytes3() throws Exception { 43 assertEquals(40, BitmapUtil.getSmallerExtentFromBytes(createJpegRawData(40, 150))); 44 assertEquals(40, BitmapUtil.getSmallerExtentFromBytes(createPngRawData(40, 150))); 45 } 46 testFindOptimalSampleSizeExact()47 public void testFindOptimalSampleSizeExact() throws Exception { 48 assertEquals(1, BitmapUtil.findOptimalSampleSize(512, 512)); 49 } 50 testFindOptimalSampleSizeBigger()51 public void testFindOptimalSampleSizeBigger() throws Exception { 52 assertEquals(1, BitmapUtil.findOptimalSampleSize(512, 1024)); 53 } 54 testFindOptimalSampleSizeSmaller1()55 public void testFindOptimalSampleSizeSmaller1() throws Exception { 56 assertEquals(2, BitmapUtil.findOptimalSampleSize(512, 256)); 57 } 58 testFindOptimalSampleSizeSmaller2()59 public void testFindOptimalSampleSizeSmaller2() throws Exception { 60 assertEquals(2, BitmapUtil.findOptimalSampleSize(512, 230)); 61 } 62 testFindOptimalSampleSizeSmaller3()63 public void testFindOptimalSampleSizeSmaller3() throws Exception { 64 assertEquals(4, BitmapUtil.findOptimalSampleSize(512, 129)); 65 } 66 testFindOptimalSampleSizeSmaller4()67 public void testFindOptimalSampleSizeSmaller4() throws Exception { 68 assertEquals(4, BitmapUtil.findOptimalSampleSize(512, 128)); 69 } 70 testFindOptimalSampleSizeUnknownOriginal()71 public void testFindOptimalSampleSizeUnknownOriginal() throws Exception { 72 assertEquals(1, BitmapUtil.findOptimalSampleSize(-1, 128)); 73 } 74 testFindOptimalSampleSizeUnknownTarget()75 public void testFindOptimalSampleSizeUnknownTarget() throws Exception { 76 assertEquals(1, BitmapUtil.findOptimalSampleSize(128, -1)); 77 } 78 testDecodeWithSampleSize1()79 public void testDecodeWithSampleSize1() throws IOException { 80 assertBitmapSize(128, 64, BitmapUtil.decodeBitmapFromBytes(createJpegRawData(128, 64), 1)); 81 assertBitmapSize(128, 64, BitmapUtil.decodeBitmapFromBytes(createPngRawData(128, 64), 1)); 82 } 83 testDecodeWithSampleSize2()84 public void testDecodeWithSampleSize2() throws IOException { 85 assertBitmapSize(64, 32, BitmapUtil.decodeBitmapFromBytes(createJpegRawData(128, 64), 2)); 86 assertBitmapSize(64, 32, BitmapUtil.decodeBitmapFromBytes(createPngRawData(128, 64), 2)); 87 } 88 testDecodeWithSampleSize2a()89 public void testDecodeWithSampleSize2a() throws IOException { 90 assertBitmapSize(25, 20, BitmapUtil.decodeBitmapFromBytes(createJpegRawData(50, 40), 2)); 91 assertBitmapSize(25, 20, BitmapUtil.decodeBitmapFromBytes(createPngRawData(50, 40), 2)); 92 } 93 testDecodeWithSampleSize4()94 public void testDecodeWithSampleSize4() throws IOException { 95 assertBitmapSize(32, 16, BitmapUtil.decodeBitmapFromBytes(createJpegRawData(128, 64), 4)); 96 assertBitmapSize(32, 16, BitmapUtil.decodeBitmapFromBytes(createPngRawData(128, 64), 4)); 97 } 98 assertBitmapSize(int expectedWidth, int expectedHeight, Bitmap bitmap)99 private void assertBitmapSize(int expectedWidth, int expectedHeight, Bitmap bitmap) { 100 assertEquals(expectedWidth, bitmap.getWidth()); 101 assertEquals(expectedHeight, bitmap.getHeight()); 102 } 103 createJpegRawData(int sourceWidth, int sourceHeight)104 private byte[] createJpegRawData(int sourceWidth, int sourceHeight) throws IOException { 105 return createRawData(Bitmap.CompressFormat.JPEG, sourceWidth, sourceHeight); 106 } 107 createPngRawData(int sourceWidth, int sourceHeight)108 private byte[] createPngRawData(int sourceWidth, int sourceHeight) throws IOException { 109 return createRawData(Bitmap.CompressFormat.PNG, sourceWidth, sourceHeight); 110 } 111 createRawData(Bitmap.CompressFormat format, int sourceWidth, int sourceHeight)112 private byte[] createRawData(Bitmap.CompressFormat format, int sourceWidth, 113 int sourceHeight) throws IOException { 114 // Create a temp bitmap as our source 115 Bitmap b = Bitmap.createBitmap(sourceWidth, sourceHeight, Bitmap.Config.ARGB_8888); 116 ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); 117 b.compress(format, 50, outputStream); 118 final byte[] data = outputStream.toByteArray(); 119 outputStream.close(); 120 return data; 121 } 122 } 123