1 /* 2 * Copyright 2016, 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.managedprovisioning; 18 19 import android.content.Context; 20 import android.graphics.Bitmap; 21 import android.graphics.BitmapFactory; 22 import android.graphics.Canvas; 23 import android.graphics.Color; 24 import android.graphics.Paint; 25 import android.graphics.drawable.Drawable; 26 import android.net.Uri; 27 import android.test.AndroidTestCase; 28 import android.test.suitebuilder.annotation.SmallTest; 29 30 import java.io.ByteArrayInputStream; 31 import java.io.ByteArrayOutputStream; 32 import java.io.File; 33 import java.io.FileOutputStream; 34 import java.io.InputStream; 35 import java.lang.Exception; 36 37 @SmallTest 38 public class LogoUtilsTest extends AndroidTestCase { 39 40 private static final int SAMPLE_COLOR = Color.RED; 41 42 public void testPartiallyResizedBitmap() throws Exception { 43 Bitmap bitmap = createSampleBitmap(20, 30); 44 File tempFile = writeBitmapToTempFile(bitmap); 45 try { 46 Bitmap newBitmap = LogoUtils.getBitmapPartiallyResized(tempFile.getPath(), 10, 15); 47 // It should have been able to get only the half bitmap. 48 assertEquals(10, newBitmap.getWidth()); 49 assertEquals(15, newBitmap.getHeight()); 50 assertEquals(SAMPLE_COLOR, newBitmap.getPixel(5, 5)); 51 } finally { 52 tempFile.delete(); 53 } 54 } 55 56 public void testPartiallyResizedElongatedBitmap() throws Exception { 57 Bitmap bitmap = createSampleBitmap(8, 32); 58 File tempFile = writeBitmapToTempFile(bitmap); 59 try { 60 Bitmap newBitmap = LogoUtils.getBitmapPartiallyResized(tempFile.getPath(), 8, 8); 61 // It should have been able to get only the quarter bitmap. 62 assertEquals(2, newBitmap.getWidth()); 63 assertEquals(8, newBitmap.getHeight()); 64 assertEquals(SAMPLE_COLOR, newBitmap.getPixel(1, 1)); 65 } finally { 66 tempFile.delete(); 67 } 68 } 69 70 public void testResizeBitmapKeepRatio() throws Exception { 71 Bitmap bitmap = createSampleBitmap(16, 32); 72 Bitmap newBitmap = LogoUtils.resizeBitmap(bitmap, 8, 8); 73 // Should have kept the ratio. 74 assertEquals(4, newBitmap.getWidth()); 75 assertEquals(8, newBitmap.getHeight()); 76 assertEquals(SAMPLE_COLOR, newBitmap.getPixel(2, 2)); 77 } 78 79 public void testResizeBitmapNoScalingNeeded() throws Exception { 80 Bitmap bitmap = createSampleBitmap(16, 32); 81 Bitmap newBitmap = LogoUtils.resizeBitmap(bitmap, 20, 40); 82 // The maximum dimensions are larger than the actual ones: should 83 // not have changed the dimensions. 84 assertEquals(16, newBitmap.getWidth()); 85 assertEquals(32, newBitmap.getHeight()); 86 assertEquals(SAMPLE_COLOR, newBitmap.getPixel(2, 2)); 87 } 88 89 public void testResizeBitmapNoIntegerRatio() throws Exception { 90 Bitmap bitmap = createSampleBitmap(15, 15); 91 Bitmap newBitmap = LogoUtils.resizeBitmap(bitmap, 10, 10); 92 assertEquals(10, newBitmap.getWidth()); 93 assertEquals(10, newBitmap.getHeight()); 94 assertEquals(SAMPLE_COLOR, newBitmap.getPixel(2, 2)); 95 } 96 97 public void testSaveGetOrganisationLogo() throws Exception { 98 Bitmap bitmap = createSampleBitmap(7, 5); 99 File tempFile = writeBitmapToTempFile(bitmap); 100 try { 101 LogoUtils.saveOrganisationLogo(getContext(), Uri.fromFile(tempFile)); 102 Drawable drawable = LogoUtils.getOrganisationLogo(getContext()); 103 // We should have the original drawable. 104 assertEquals(7, drawable.getIntrinsicWidth()); 105 assertEquals(5, drawable.getIntrinsicHeight()); 106 } finally { 107 LogoUtils.cleanUp(getContext()); 108 } 109 } 110 111 public void testDefaultOrganisationLogo() throws Exception { 112 int maxWidth = (int) getContext().getResources().getDimension(R.dimen.max_logo_width); 113 int maxHeight = (int) getContext().getResources().getDimension(R.dimen.max_logo_height); 114 // In this test, we don't save the logo. 115 116 // First let's compute the expected logo. It is the default one, resized if too big. 117 Bitmap expected = BitmapFactory.decodeResource(getContext().getResources(), 118 R.drawable.briefcase_icon); 119 expected = LogoUtils.resizeBitmap(expected, maxWidth, maxHeight); 120 121 // Now, get the actual logo 122 Drawable logo = LogoUtils.getOrganisationLogo(getContext()); 123 124 // They should be equal. 125 assertBitmapEquals(expected, bitmapFromDrawable(logo)); 126 } 127 128 private Bitmap createSampleBitmap(int width, int height) { 129 Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 130 Canvas canvas = new Canvas(bitmap); 131 Paint paint = new Paint(); 132 paint.setColor(SAMPLE_COLOR); 133 canvas.drawRect(0, 0, width, height, paint); 134 return bitmap; 135 } 136 137 private void assertBitmapEquals(Bitmap b1, Bitmap b2) { 138 assertEquals(b1.getWidth(), b2.getWidth()); 139 assertEquals(b1.getHeight(), b2.getHeight()); 140 for (int x = 0; x < b1.getWidth(); x++) { 141 for (int y = 0; y < b1.getHeight(); y++) { 142 assertEquals(b1.getPixel(x, y), b2.getPixel(x, y)); 143 } 144 } 145 } 146 147 private Bitmap bitmapFromDrawable(Drawable drawable) { 148 int width = drawable.getIntrinsicWidth(); 149 int height = drawable.getIntrinsicHeight(); 150 Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 151 Canvas canvas = new Canvas(bitmap); 152 drawable.setBounds(0, 0, width, height); 153 drawable.draw(canvas); 154 return bitmap; 155 } 156 157 // Returns the temporary file where the bitmap was written. 158 private File writeBitmapToTempFile(Bitmap bitmap) throws Exception { 159 File tempFile = File.createTempFile("temp_bitmap", "", getContext().getCacheDir()); 160 FileOutputStream fos = new FileOutputStream(tempFile); 161 bitmap.compress(Bitmap.CompressFormat.PNG, 0, fos); 162 fos.close(); 163 return tempFile; 164 } 165 } 166
