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 17 package com.android.browser; 18 19 import android.test.AndroidTestCase; 20 import android.test.suitebuilder.annotation.MediumTest; 21 import android.webkit.WebStorage; 22 23 /** 24 * This is a series of unit tests for the WebStorageSizeManager class. 25 * 26 */ 27 @MediumTest 28 public class WebStorageSizeManagerUnitTests extends AndroidTestCase { 29 // Used for testing the out-of-space callbacks. 30 private long mNewQuota; 31 // Callback functor that sets a new quota in case of out-of-space scenarios. 32 private class MockQuotaUpdater implements WebStorage.QuotaUpdater { 33 public void updateQuota(long newQuota) { 34 mNewQuota = newQuota; 35 } 36 } 37 38 // Mock the DiskInfo. 39 private class MockDiskInfo implements WebStorageSizeManager.DiskInfo { 40 private long mFreeSize; 41 private long mTotalSize; 42 43 public long getFreeSpaceSizeBytes() { 44 return mFreeSize; 45 } 46 47 public long getTotalSizeBytes() { 48 return mTotalSize; 49 } 50 51 public void setFreeSpaceSizeBytes(long freeSize) { 52 mFreeSize = freeSize; 53 } 54 55 public void setTotalSizeBytes(long totalSize) { 56 mTotalSize = totalSize; 57 } 58 } 59 60 // Mock the AppCacheInfo 61 public class MockAppCacheInfo implements WebStorageSizeManager.AppCacheInfo { 62 private long mAppCacheSize; 63 64 public long getAppCacheSizeBytes() { 65 return mAppCacheSize; 66 } 67 68 public void setAppCacheSizeBytes(long appCacheSize) { 69 mAppCacheSize = appCacheSize; 70 } 71 } 72 73 private MockQuotaUpdater mQuotaUpdater = new MockQuotaUpdater(); 74 private final MockDiskInfo mDiskInfo = new MockDiskInfo(); 75 private final MockAppCacheInfo mAppCacheInfo = new MockAppCacheInfo(); 76 // Utility for making size computations easier to read. 77 private long bytes(double megabytes) { 78 return (new Double(megabytes * 1024 * 1024)).longValue(); 79 } 80 /** 81 * Test the onExceededDatabaseQuota and onReachedMaxAppCacheSize callbacks 82 */ 83 public void testCallbacks() { 84 long totalUsedQuota = 0; 85 final long quotaIncrease = WebStorageSizeManager.QUOTA_INCREASE_STEP; // 1MB 86 87 // We have 75 MB total, 24MB free so the global limit will be 12 MB. 88 mDiskInfo.setTotalSizeBytes(bytes(75)); 89 mDiskInfo.setFreeSpaceSizeBytes(bytes(24)); 90 // We have an appcache file size of 0 MB. 91 mAppCacheInfo.setAppCacheSizeBytes(0); 92 // Create the manager. 93 WebStorageSizeManager manager = new WebStorageSizeManager(null, mDiskInfo, mAppCacheInfo); 94 // We add origin 1. 95 long origin1Quota = 0; 96 long origin1EstimatedSize = bytes(3.5); 97 manager.onExceededDatabaseQuota("1", "1", origin1Quota, origin1EstimatedSize, totalUsedQuota, mQuotaUpdater); 98 assertEquals(origin1EstimatedSize, mNewQuota); 99 origin1Quota = mNewQuota; 100 totalUsedQuota += origin1Quota; 101 102 // We add origin 2. 103 long origin2Quota = 0; 104 long origin2EstimatedSize = bytes(2.5); 105 manager.onExceededDatabaseQuota("2", "2", origin2Quota, origin2EstimatedSize, totalUsedQuota, mQuotaUpdater); 106 assertEquals(origin2EstimatedSize, mNewQuota); 107 origin2Quota = mNewQuota; 108 totalUsedQuota += origin2Quota; 109 110 // Origin 1 runs out of space. 111 manager.onExceededDatabaseQuota("1", "1", origin1Quota, 0, totalUsedQuota, mQuotaUpdater); 112 assertEquals(origin1EstimatedSize + quotaIncrease, mNewQuota); 113 totalUsedQuota -= origin1Quota; 114 origin1Quota = mNewQuota; 115 totalUsedQuota += origin1Quota; 116 117 // Origin 2 runs out of space. 118 manager.onExceededDatabaseQuota("2", "2", origin2Quota, 0, totalUsedQuota, mQuotaUpdater); 119 assertEquals(origin2EstimatedSize + quotaIncrease, mNewQuota); 120 totalUsedQuota -= origin2Quota; 121 origin2Quota = mNewQuota; 122 totalUsedQuota += origin2Quota; 123 124 // We add origin 3. TotalUsedQuota is 8 (3.5 + 2.5 + 1 + 1). AppCacheMaxSize is 3 (12 / 4). 125 // So we have 1 MB free. 126 long origin3Quota = 0; 127 long origin3EstimatedSize = bytes(5); 128 manager.onExceededDatabaseQuota("3", "3", origin3Quota, origin3EstimatedSize, totalUsedQuota, mQuotaUpdater); 129 assertEquals(0, mNewQuota); // We cannot satisfy the estimatedSize 130 origin3Quota = mNewQuota; 131 totalUsedQuota += origin3Quota; 132 133 // Origin 1 runs out of space again. It should increase it's quota to take the last 1MB. 134 manager.onExceededDatabaseQuota("1", "1", origin1Quota, 0, totalUsedQuota, mQuotaUpdater); 135 assertEquals(origin1Quota + quotaIncrease, mNewQuota); 136 totalUsedQuota -= origin1Quota; 137 origin1Quota = mNewQuota; 138 totalUsedQuota += origin1Quota; 139 140 // Origin 1 runs out of space again. It should inow fail to increase in size. 141 manager.onExceededDatabaseQuota("1", "1", origin1Quota, 0, totalUsedQuota, mQuotaUpdater); 142 assertEquals(origin1Quota, mNewQuota); 143 144 // We try adding a new origin. Which will fail. 145 manager.onExceededDatabaseQuota("4", "4", 0, bytes(1), totalUsedQuota, mQuotaUpdater); 146 assertEquals(0, mNewQuota); 147 148 // AppCache size increases to 2MB... 149 mAppCacheInfo.setAppCacheSizeBytes(bytes(2)); 150 // ... and wants 2MB more. Fail. 151 manager.onReachedMaxAppCacheSize(bytes(2), totalUsedQuota, mQuotaUpdater); 152 assertEquals(0, mNewQuota); 153 154 // The user nukes origin 2 155 totalUsedQuota -= origin2Quota; 156 origin2Quota = 0; 157 // TotalUsedQuota is 5.5 (9 - 3.5). AppCacheMaxSize is 3. AppCacheSize is 2. 158 // AppCache wants 1.5MB more 159 manager.onReachedMaxAppCacheSize(bytes(1.5), totalUsedQuota, mQuotaUpdater); 160 mAppCacheInfo.setAppCacheSizeBytes(mAppCacheInfo.getAppCacheSizeBytes() + bytes(2.5)); 161 assertEquals(mAppCacheInfo.getAppCacheSizeBytes(), mNewQuota - WebStorageSizeManager.APPCACHE_MAXSIZE_PADDING); 162 163 // We try adding a new origin. This time we succeed. 164 // TotalUsedQuota is 5.5. AppCacheMaxSize is 5.0. So we have 12 - 10.5 = 1.5 available. 165 long origin4Quota = 0; 166 long origin4EstimatedSize = bytes(1.5); 167 manager.onExceededDatabaseQuota("4", "4", origin4Quota, origin4EstimatedSize, totalUsedQuota, mQuotaUpdater); 168 assertEquals(bytes(1.5), mNewQuota); 169 origin4Quota = mNewQuota; 170 totalUsedQuota += origin4Quota; 171 } 172 /** 173 * Test the application caches max size calculator. 174 */ 175 public void testCalculateGlobalLimit() { 176 long fileSystemSize = 78643200; // 75 MB 177 long freeSpaceSize = 25165824; // 24 MB 178 long maxSize = WebStorageSizeManager.calculateGlobalLimit(fileSystemSize, freeSpaceSize); 179 assertEquals(12582912, maxSize); // 12MB 180 181 fileSystemSize = 78643200; // 75 MB 182 freeSpaceSize = 60 * 1024 * 1024; // 60MB 183 maxSize = WebStorageSizeManager.calculateGlobalLimit(fileSystemSize, freeSpaceSize); 184 assertEquals(19922944, maxSize); // 19MB 185 186 fileSystemSize = 8589934592L; // 8 GB 187 freeSpaceSize = 4294967296L; // 4 GB 188 maxSize = WebStorageSizeManager.calculateGlobalLimit(fileSystemSize, freeSpaceSize); 189 assertEquals(536870912L, maxSize); // 512 MB 190 191 fileSystemSize = -14; 192 freeSpaceSize = 21; 193 maxSize = WebStorageSizeManager.calculateGlobalLimit(fileSystemSize, freeSpaceSize); 194 assertEquals(0, maxSize); 195 196 fileSystemSize = 100; 197 freeSpaceSize = 101; 198 maxSize = WebStorageSizeManager.calculateGlobalLimit(fileSystemSize, freeSpaceSize); 199 assertEquals(0, maxSize); 200 201 fileSystemSize = 3774873; // ~4.2 MB 202 freeSpaceSize = 2560000; // ~2.4 MB 203 maxSize = WebStorageSizeManager.calculateGlobalLimit(fileSystemSize, freeSpaceSize); 204 assertEquals(2097152, maxSize); // 2 MB 205 206 fileSystemSize = 4404019; // ~4.2 MB 207 freeSpaceSize = 3774873; // ~3.6 MB 208 maxSize = WebStorageSizeManager.calculateGlobalLimit(fileSystemSize, freeSpaceSize); 209 assertEquals(2097152, maxSize); // 2 MB 210 211 fileSystemSize = 4404019; // ~4.2 MB 212 freeSpaceSize = 4404019; // ~4.2 MB 213 maxSize = WebStorageSizeManager.calculateGlobalLimit(fileSystemSize, freeSpaceSize); 214 assertEquals(3145728, maxSize); // 3 MB 215 216 fileSystemSize = 1048576; // 1 MB 217 freeSpaceSize = 1048575; // 1 MB - 1 byte 218 maxSize = WebStorageSizeManager.calculateGlobalLimit(fileSystemSize, freeSpaceSize); 219 assertEquals(0, maxSize); 220 221 fileSystemSize = 3774873; // ~3.6 MB 222 freeSpaceSize = 2097151; // 2 MB - 1 byte 223 maxSize = WebStorageSizeManager.calculateGlobalLimit(fileSystemSize, freeSpaceSize); 224 assertEquals(0, maxSize); 225 226 fileSystemSize = 3774873; // ~3.6 MB 227 freeSpaceSize = 2097151; // 2 MB 228 maxSize = WebStorageSizeManager.calculateGlobalLimit(fileSystemSize, freeSpaceSize); 229 assertEquals(0, maxSize); 230 } 231 232 public void testManyDatabasesOnOneOrigin() { 233 // This test ensures that if an origin creates more than one database, the quota that is 234 // assigned to the origin after the second creation is enough to satisfy all databases 235 // under that origin. 236 // See b/2417477. 237 238 long totalUsedQuota = 0; 239 mDiskInfo.setTotalSizeBytes(bytes(100)); 240 mDiskInfo.setFreeSpaceSizeBytes(bytes(100)); 241 // This should give us a storage area of 13MB, with 3.25MB for appcache and 9.75MB for 242 // databases. 243 assertEquals(bytes(13), WebStorageSizeManager.calculateGlobalLimit( 244 mDiskInfo.getTotalSizeBytes(), mDiskInfo.getFreeSpaceSizeBytes())); 245 246 // We have an appcache file size of 0 MB. 247 mAppCacheInfo.setAppCacheSizeBytes(0); 248 249 // Create the manager. 250 WebStorageSizeManager manager = new WebStorageSizeManager(null, mDiskInfo, mAppCacheInfo); 251 252 // We add an origin. 253 long originQuota = 0; 254 long database1EstimatedSize = bytes(2); 255 manager.onExceededDatabaseQuota("1", "1", originQuota, database1EstimatedSize, 256 totalUsedQuota, mQuotaUpdater); 257 assertEquals(database1EstimatedSize, mNewQuota); 258 originQuota = mNewQuota; 259 totalUsedQuota = originQuota; 260 261 // Now try to create a new database under the origin, by invoking onExceededDatabaseQuota 262 // again. This time, request more space than the old quota + the quota increase step. 263 long database2EstimatedSize = bytes(3.5); 264 manager.onExceededDatabaseQuota("1", "2", originQuota, database2EstimatedSize, 265 totalUsedQuota, mQuotaUpdater); 266 assertEquals(database1EstimatedSize + database2EstimatedSize, mNewQuota); 267 originQuota = mNewQuota; 268 totalUsedQuota = originQuota; 269 270 // Create another database, but this time use a size that will overflow the space on the 271 // device. It should be denied. 272 long database3EstimatedSize = bytes(50); 273 manager.onExceededDatabaseQuota("1", "3", originQuota, database3EstimatedSize, 274 totalUsedQuota, mQuotaUpdater); 275 assertEquals(originQuota, mNewQuota); 276 277 // Create another database. This time, request less than the old quota. 278 long database4EstimatedSize = bytes(2); 279 manager.onExceededDatabaseQuota("1", "4", originQuota, database4EstimatedSize, 280 totalUsedQuota, mQuotaUpdater); 281 assertEquals(database1EstimatedSize + database2EstimatedSize + database4EstimatedSize, 282 mNewQuota); 283 originQuota = mNewQuota; 284 totalUsedQuota = originQuota; 285 286 // Now have the first database overflow it's quota. We should get 1 more MB. 287 manager.onExceededDatabaseQuota("1", "1", originQuota, 0, totalUsedQuota, mQuotaUpdater); 288 assertEquals(database1EstimatedSize + database2EstimatedSize + database4EstimatedSize + 289 bytes(1), mNewQuota); 290 originQuota = mNewQuota; 291 totalUsedQuota = originQuota; 292 293 // Create a db under the origin that uses a quota less than the usual quota increase step. 294 long database5EstimatedSize = bytes(0.5); 295 manager.onExceededDatabaseQuota("1", "5", originQuota, database5EstimatedSize, 296 totalUsedQuota, mQuotaUpdater); 297 assertEquals(database1EstimatedSize + database2EstimatedSize + database4EstimatedSize + 298 bytes(1) + database5EstimatedSize, mNewQuota); 299 } 300 } 301
