| /* |
| * Copyright (C) 2012 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.contacts.util; |
| |
| import android.graphics.Bitmap; |
| import android.test.AndroidTestCase; |
| import android.test.suitebuilder.annotation.SmallTest; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| |
| /** |
| * Tests for {@link com.android.contacts.util.BitmapUtil}. |
| */ |
| @SmallTest |
| public class BitmapUtilTests extends AndroidTestCase { |
| public void testGetSmallerExtentFromBytes1() throws Exception { |
| assertEquals(100, BitmapUtil.getSmallerExtentFromBytes(createJpegRawData(100, 100))); |
| assertEquals(100, BitmapUtil.getSmallerExtentFromBytes(createPngRawData(100, 100))); |
| } |
| |
| public void testGetSmallerExtentFromBytes2() throws Exception { |
| assertEquals(50, BitmapUtil.getSmallerExtentFromBytes(createJpegRawData(200, 50))); |
| assertEquals(50, BitmapUtil.getSmallerExtentFromBytes(createPngRawData(200, 50))); |
| } |
| |
| public void testGetSmallerExtentFromBytes3() throws Exception { |
| assertEquals(40, BitmapUtil.getSmallerExtentFromBytes(createJpegRawData(40, 150))); |
| assertEquals(40, BitmapUtil.getSmallerExtentFromBytes(createPngRawData(40, 150))); |
| } |
| |
| public void testFindOptimalSampleSizeExact() throws Exception { |
| assertEquals(1, BitmapUtil.findOptimalSampleSize(512, 512)); |
| } |
| |
| public void testFindOptimalSampleSizeBigger() throws Exception { |
| assertEquals(1, BitmapUtil.findOptimalSampleSize(512, 1024)); |
| } |
| |
| public void testFindOptimalSampleSizeSmaller1() throws Exception { |
| assertEquals(2, BitmapUtil.findOptimalSampleSize(512, 256)); |
| } |
| |
| public void testFindOptimalSampleSizeSmaller2() throws Exception { |
| assertEquals(2, BitmapUtil.findOptimalSampleSize(512, 230)); |
| } |
| |
| public void testFindOptimalSampleSizeSmaller3() throws Exception { |
| assertEquals(4, BitmapUtil.findOptimalSampleSize(512, 129)); |
| } |
| |
| public void testFindOptimalSampleSizeSmaller4() throws Exception { |
| assertEquals(4, BitmapUtil.findOptimalSampleSize(512, 128)); |
| } |
| |
| public void testFindOptimalSampleSizeUnknownOriginal() throws Exception { |
| assertEquals(1, BitmapUtil.findOptimalSampleSize(-1, 128)); |
| } |
| |
| public void testFindOptimalSampleSizeUnknownTarget() throws Exception { |
| assertEquals(1, BitmapUtil.findOptimalSampleSize(128, -1)); |
| } |
| |
| public void testDecodeWithSampleSize1() throws IOException { |
| assertBitmapSize(128, 64, BitmapUtil.decodeBitmapFromBytes(createJpegRawData(128, 64), 1)); |
| assertBitmapSize(128, 64, BitmapUtil.decodeBitmapFromBytes(createPngRawData(128, 64), 1)); |
| } |
| |
| public void testDecodeWithSampleSize2() throws IOException { |
| assertBitmapSize(64, 32, BitmapUtil.decodeBitmapFromBytes(createJpegRawData(128, 64), 2)); |
| assertBitmapSize(64, 32, BitmapUtil.decodeBitmapFromBytes(createPngRawData(128, 64), 2)); |
| } |
| |
| public void testDecodeWithSampleSize2a() throws IOException { |
| assertBitmapSize(25, 20, BitmapUtil.decodeBitmapFromBytes(createJpegRawData(50, 40), 2)); |
| assertBitmapSize(25, 20, BitmapUtil.decodeBitmapFromBytes(createPngRawData(50, 40), 2)); |
| } |
| |
| public void testDecodeWithSampleSize4() throws IOException { |
| assertBitmapSize(32, 16, BitmapUtil.decodeBitmapFromBytes(createJpegRawData(128, 64), 4)); |
| assertBitmapSize(32, 16, BitmapUtil.decodeBitmapFromBytes(createPngRawData(128, 64), 4)); |
| } |
| |
| private void assertBitmapSize(int expectedWidth, int expectedHeight, Bitmap bitmap) { |
| assertEquals(expectedWidth, bitmap.getWidth()); |
| assertEquals(expectedHeight, bitmap.getHeight()); |
| } |
| |
| private byte[] createJpegRawData(int sourceWidth, int sourceHeight) throws IOException { |
| return createRawData(Bitmap.CompressFormat.JPEG, sourceWidth, sourceHeight); |
| } |
| |
| private byte[] createPngRawData(int sourceWidth, int sourceHeight) throws IOException { |
| return createRawData(Bitmap.CompressFormat.PNG, sourceWidth, sourceHeight); |
| } |
| |
| private byte[] createRawData(Bitmap.CompressFormat format, int sourceWidth, |
| int sourceHeight) throws IOException { |
| // Create a temp bitmap as our source |
| Bitmap b = Bitmap.createBitmap(sourceWidth, sourceHeight, Bitmap.Config.ARGB_8888); |
| ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); |
| b.compress(format, 50, outputStream); |
| final byte[] data = outputStream.toByteArray(); |
| outputStream.close(); |
| return data; |
| } |
| } |