Vasu Nori | 6c354da | 2010-04-26 23:33:39 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2006 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 android.database.sqlite; |
| 18 | |
Vasu Nori | ce38b98 | 2010-07-22 13:57:13 -0700 | [diff] [blame] | 19 | import android.content.ContentValues; |
Vasu Nori | 6c354da | 2010-04-26 23:33:39 -0700 | [diff] [blame] | 20 | import android.content.Context; |
Vasu Nori | 65a8883 | 2010-07-16 15:14:08 -0700 | [diff] [blame] | 21 | import android.database.Cursor; |
Vasu Nori | cc6f549 | 2010-08-23 17:05:25 -0700 | [diff] [blame] | 22 | import android.database.DatabaseErrorHandler; |
Vasu Nori | 6c354da | 2010-04-26 23:33:39 -0700 | [diff] [blame] | 23 | import android.database.DatabaseUtils; |
Vasu Nori | cc6f549 | 2010-08-23 17:05:25 -0700 | [diff] [blame] | 24 | import android.database.DefaultDatabaseErrorHandler; |
Vasu Nori | 7501010 | 2010-07-01 16:23:06 -0700 | [diff] [blame] | 25 | import android.database.sqlite.SQLiteDatabase; |
Vasu Nori | cc6f549 | 2010-08-23 17:05:25 -0700 | [diff] [blame] | 26 | import android.database.sqlite.SQLiteDatabase.CursorFactory; |
Vasu Nori | 7501010 | 2010-07-01 16:23:06 -0700 | [diff] [blame] | 27 | import android.database.sqlite.SQLiteStatement; |
Vasu Nori | 6c354da | 2010-04-26 23:33:39 -0700 | [diff] [blame] | 28 | import android.test.AndroidTestCase; |
| 29 | import android.test.suitebuilder.annotation.LargeTest; |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 30 | import android.test.suitebuilder.annotation.MediumTest; |
Vasu Nori | 6c354da | 2010-04-26 23:33:39 -0700 | [diff] [blame] | 31 | import android.test.suitebuilder.annotation.SmallTest; |
Vasu Nori | 7501010 | 2010-07-01 16:23:06 -0700 | [diff] [blame] | 32 | import android.test.suitebuilder.annotation.Suppress; |
Vasu Nori | 6c354da | 2010-04-26 23:33:39 -0700 | [diff] [blame] | 33 | import android.util.Log; |
Vasu Nori | cc1eaf6 | 2011-03-14 19:22:16 -0700 | [diff] [blame] | 34 | import android.util.Pair; |
Vasu Nori | 6c354da | 2010-04-26 23:33:39 -0700 | [diff] [blame] | 35 | |
| 36 | import java.io.File; |
Vasu Nori | 7501010 | 2010-07-01 16:23:06 -0700 | [diff] [blame] | 37 | import java.util.ArrayList; |
Vasu Nori | cc1eaf6 | 2011-03-14 19:22:16 -0700 | [diff] [blame] | 38 | import java.util.List; |
Vasu Nori | 6c354da | 2010-04-26 23:33:39 -0700 | [diff] [blame] | 39 | |
| 40 | public class SQLiteDatabaseTest extends AndroidTestCase { |
| 41 | private static final String TAG = "DatabaseGeneralTest"; |
Vasu Nori | ce38b98 | 2010-07-22 13:57:13 -0700 | [diff] [blame] | 42 | private static final String TEST_TABLE = "test"; |
Vasu Nori | 6c354da | 2010-04-26 23:33:39 -0700 | [diff] [blame] | 43 | private static final int CURRENT_DATABASE_VERSION = 42; |
| 44 | private SQLiteDatabase mDatabase; |
| 45 | private File mDatabaseFile; |
Vasu Nori | ce38b98 | 2010-07-22 13:57:13 -0700 | [diff] [blame] | 46 | private static final int INSERT = 1; |
| 47 | private static final int UPDATE = 2; |
| 48 | private static final int DELETE = 3; |
Vasu Nori | cc6f549 | 2010-08-23 17:05:25 -0700 | [diff] [blame] | 49 | private static final String DB_NAME = "database_test.db"; |
Vasu Nori | 6c354da | 2010-04-26 23:33:39 -0700 | [diff] [blame] | 50 | |
| 51 | @Override |
| 52 | protected void setUp() throws Exception { |
| 53 | super.setUp(); |
| 54 | dbSetUp(); |
| 55 | } |
| 56 | |
| 57 | @Override |
| 58 | protected void tearDown() throws Exception { |
| 59 | dbTeardown(); |
| 60 | super.tearDown(); |
| 61 | } |
| 62 | |
| 63 | private void dbTeardown() throws Exception { |
| 64 | mDatabase.close(); |
| 65 | mDatabaseFile.delete(); |
| 66 | } |
| 67 | |
| 68 | private void dbSetUp() throws Exception { |
| 69 | File dbDir = getContext().getDir(this.getClass().getName(), Context.MODE_PRIVATE); |
Vasu Nori | cc6f549 | 2010-08-23 17:05:25 -0700 | [diff] [blame] | 70 | mDatabaseFile = new File(dbDir, DB_NAME); |
Vasu Nori | 6c354da | 2010-04-26 23:33:39 -0700 | [diff] [blame] | 71 | if (mDatabaseFile.exists()) { |
| 72 | mDatabaseFile.delete(); |
| 73 | } |
| 74 | mDatabase = SQLiteDatabase.openOrCreateDatabase(mDatabaseFile.getPath(), null, null); |
| 75 | assertNotNull(mDatabase); |
| 76 | mDatabase.setVersion(CURRENT_DATABASE_VERSION); |
| 77 | } |
| 78 | |
| 79 | @SmallTest |
| 80 | public void testEnableWriteAheadLogging() { |
Vasu Nori | 2827d6d | 2010-07-04 00:26:18 -0700 | [diff] [blame] | 81 | mDatabase.disableWriteAheadLogging(); |
Vasu Nori | 6c354da | 2010-04-26 23:33:39 -0700 | [diff] [blame] | 82 | assertNull(mDatabase.mConnectionPool); |
| 83 | mDatabase.enableWriteAheadLogging(); |
| 84 | DatabaseConnectionPool pool = mDatabase.mConnectionPool; |
| 85 | assertNotNull(pool); |
| 86 | // make the same call again and make sure the pool already setup is not re-created |
| 87 | mDatabase.enableWriteAheadLogging(); |
| 88 | assertEquals(pool, mDatabase.mConnectionPool); |
| 89 | } |
| 90 | |
| 91 | @SmallTest |
Vasu Nori | 65a8883 | 2010-07-16 15:14:08 -0700 | [diff] [blame] | 92 | public void testDisableWriteAheadLogging() { |
| 93 | mDatabase.execSQL("create table test (i int);"); |
| 94 | mDatabase.enableWriteAheadLogging(); |
| 95 | assertNotNull(mDatabase.mConnectionPool); |
| 96 | // get a pooled database connection |
| 97 | SQLiteDatabase db = mDatabase.getDbConnection("select * from test"); |
| 98 | assertNotNull(db); |
| 99 | assertFalse(mDatabase.equals(db)); |
| 100 | assertTrue(db.isOpen()); |
| 101 | // disable WAL - which should close connection pool and all pooled connections |
| 102 | mDatabase.disableWriteAheadLogging(); |
| 103 | assertNull(mDatabase.mConnectionPool); |
| 104 | assertFalse(db.isOpen()); |
| 105 | } |
| 106 | |
| 107 | @SmallTest |
| 108 | public void testCursorsWithClosedDbConnAfterDisableWriteAheadLogging() { |
| 109 | mDatabase.disableWriteAheadLogging(); |
| 110 | mDatabase.beginTransactionNonExclusive(); |
| 111 | mDatabase.execSQL("create table test (i int);"); |
| 112 | mDatabase.execSQL("insert into test values(1);"); |
| 113 | mDatabase.setTransactionSuccessful(); |
| 114 | mDatabase.endTransaction(); |
| 115 | mDatabase.enableWriteAheadLogging(); |
| 116 | assertNotNull(mDatabase.mConnectionPool); |
| 117 | assertEquals(0, mDatabase.mConnectionPool.getSize()); |
| 118 | assertEquals(0, mDatabase.mConnectionPool.getFreePoolSize()); |
| 119 | // get a cursor which should use pooled database connection |
| 120 | Cursor c = mDatabase.rawQuery("select * from test", null); |
| 121 | assertEquals(1, c.getCount()); |
| 122 | assertEquals(1, mDatabase.mConnectionPool.getSize()); |
| 123 | assertEquals(1, mDatabase.mConnectionPool.getFreePoolSize()); |
| 124 | SQLiteDatabase db = mDatabase.mConnectionPool.getConnectionList().get(0); |
| 125 | assertTrue(mDatabase.mConnectionPool.isDatabaseObjFree(db)); |
| 126 | // disable WAL - which should close connection pool and all pooled connections |
| 127 | mDatabase.disableWriteAheadLogging(); |
| 128 | assertNull(mDatabase.mConnectionPool); |
| 129 | assertFalse(db.isOpen()); |
| 130 | // cursor data should still be accessible because it is fetching data from CursorWindow |
| 131 | c.moveToNext(); |
| 132 | assertEquals(1, c.getInt(0)); |
| 133 | c.requery(); |
| 134 | assertEquals(1, c.getCount()); |
| 135 | c.moveToNext(); |
| 136 | assertEquals(1, c.getInt(0)); |
| 137 | c.close(); |
| 138 | } |
| 139 | |
Vasu Nori | 6c354da | 2010-04-26 23:33:39 -0700 | [diff] [blame] | 140 | /** |
Vasu Nori | ce38b98 | 2010-07-22 13:57:13 -0700 | [diff] [blame] | 141 | * a transaction should be started before a standalone-update/insert/delete statement |
| 142 | */ |
| 143 | @SmallTest |
| 144 | public void testStartXactBeforeUpdateSql() throws InterruptedException { |
| 145 | runTestForStartXactBeforeUpdateSql(INSERT); |
| 146 | runTestForStartXactBeforeUpdateSql(UPDATE); |
| 147 | runTestForStartXactBeforeUpdateSql(DELETE); |
| 148 | } |
| 149 | private void runTestForStartXactBeforeUpdateSql(int stmtType) throws InterruptedException { |
| 150 | createTableAndClearCache(); |
| 151 | |
| 152 | ContentValues values = new ContentValues(); |
| 153 | // make some changes to data in TEST_TABLE |
| 154 | for (int i = 0; i < 5; i++) { |
| 155 | values.put("i", i); |
| 156 | values.put("j", "i" + System.currentTimeMillis()); |
| 157 | mDatabase.insert(TEST_TABLE, null, values); |
| 158 | switch (stmtType) { |
| 159 | case UPDATE: |
| 160 | values.put("j", "u" + System.currentTimeMillis()); |
| 161 | mDatabase.update(TEST_TABLE, values, "i = " + i, null); |
| 162 | break; |
| 163 | case DELETE: |
| 164 | mDatabase.delete(TEST_TABLE, "i = 1", null); |
| 165 | break; |
| 166 | } |
| 167 | } |
| 168 | // do a query. even though query uses a different database connection, |
| 169 | // it should still see the above changes to data because the above standalone |
| 170 | // insert/update/deletes are done in transactions automatically. |
| 171 | String sql = "select count(*) from " + TEST_TABLE; |
| 172 | SQLiteStatement stmt = mDatabase.compileStatement(sql); |
| 173 | final int expectedValue = (stmtType == DELETE) ? 4 : 5; |
| 174 | assertEquals(expectedValue, stmt.simpleQueryForLong()); |
| 175 | stmt.close(); |
| 176 | Cursor c = mDatabase.rawQuery(sql, null); |
| 177 | assertEquals(1, c.getCount()); |
| 178 | c.moveToFirst(); |
| 179 | assertEquals(expectedValue, c.getLong(0)); |
| 180 | c.close(); |
| 181 | |
| 182 | // do 5 more changes in a transaction but do a query before and after the commit |
| 183 | mDatabase.beginTransaction(); |
| 184 | for (int i = 10; i < 15; i++) { |
| 185 | values.put("i", i); |
| 186 | values.put("j", "i" + System.currentTimeMillis()); |
| 187 | mDatabase.insert(TEST_TABLE, null, values); |
| 188 | switch (stmtType) { |
| 189 | case UPDATE: |
| 190 | values.put("j", "u" + System.currentTimeMillis()); |
| 191 | mDatabase.update(TEST_TABLE, values, "i = " + i, null); |
| 192 | break; |
| 193 | case DELETE: |
| 194 | mDatabase.delete(TEST_TABLE, "i = 1", null); |
| 195 | break; |
| 196 | } |
| 197 | } |
| 198 | mDatabase.setTransactionSuccessful(); |
| 199 | // do a query before commit - should still have 5 rows |
| 200 | // this query should run in a different thread to force it to use a different database |
| 201 | // connection |
| 202 | Thread t = new Thread() { |
| 203 | @Override public void run() { |
| 204 | String sql = "select count(*) from " + TEST_TABLE; |
| 205 | SQLiteStatement stmt = getDb().compileStatement(sql); |
| 206 | assertEquals(expectedValue, stmt.simpleQueryForLong()); |
| 207 | stmt.close(); |
| 208 | Cursor c = getDb().rawQuery(sql, null); |
| 209 | assertEquals(1, c.getCount()); |
| 210 | c.moveToFirst(); |
| 211 | assertEquals(expectedValue, c.getLong(0)); |
| 212 | c.close(); |
| 213 | } |
| 214 | }; |
| 215 | t.start(); |
| 216 | // wait until the above thread is done |
| 217 | t.join(); |
| 218 | // commit and then query. should see changes from the transaction |
| 219 | mDatabase.endTransaction(); |
| 220 | stmt = mDatabase.compileStatement(sql); |
| 221 | final int expectedValue2 = (stmtType == DELETE) ? 9 : 10; |
| 222 | assertEquals(expectedValue2, stmt.simpleQueryForLong()); |
| 223 | stmt.close(); |
| 224 | c = mDatabase.rawQuery(sql, null); |
| 225 | assertEquals(1, c.getCount()); |
| 226 | c.moveToFirst(); |
| 227 | assertEquals(expectedValue2, c.getLong(0)); |
| 228 | c.close(); |
| 229 | } |
| 230 | private synchronized SQLiteDatabase getDb() { |
| 231 | return mDatabase; |
| 232 | } |
| 233 | |
| 234 | /** |
Vasu Nori | 6c354da | 2010-04-26 23:33:39 -0700 | [diff] [blame] | 235 | * Test to ensure that readers are able to read the database data (old versions) |
| 236 | * EVEN WHEN the writer is in a transaction on the same database. |
| 237 | *<p> |
| 238 | * This test starts 1 Writer and 2 Readers and sets up connection pool for readers |
| 239 | * by calling the method {@link SQLiteDatabase#enableWriteAheadLogging()}. |
| 240 | * <p> |
| 241 | * Writer does the following in a tight loop |
| 242 | * <pre> |
| 243 | * begin transaction |
| 244 | * insert into table_1 |
| 245 | * insert into table_2 |
| 246 | * commit |
| 247 | * </pre> |
| 248 | * <p> |
| 249 | * As long a the writer is alive, Readers do the following in a tight loop at the same time |
| 250 | * <pre> |
| 251 | * Reader_K does "select count(*) from table_K" where K = 1 or 2 |
| 252 | * </pre> |
| 253 | * <p> |
| 254 | * The test is run for TIME_TO_RUN_WAL_TEST_FOR sec. |
| 255 | * <p> |
| 256 | * The test is repeated for different connection-pool-sizes (1..3) |
| 257 | * <p> |
| 258 | * And at the end of of each test, the following statistics are printed |
| 259 | * <ul> |
| 260 | * <li>connection-pool-size</li> |
| 261 | * <li>number-of-transactions by writer</li> |
| 262 | * <li>number of reads by reader_K while the writer is IN or NOT-IN xaction</li> |
| 263 | * </ul> |
| 264 | */ |
| 265 | @LargeTest |
Vasu Nori | 7501010 | 2010-07-01 16:23:06 -0700 | [diff] [blame] | 266 | @Suppress // run this test only if you need to collect the numbers from this test |
Vasu Nori | 6c354da | 2010-04-26 23:33:39 -0700 | [diff] [blame] | 267 | public void testConcurrencyEffectsOfConnPool() throws Exception { |
| 268 | // run the test with sqlite WAL enable |
| 269 | runConnectionPoolTest(true); |
| 270 | |
| 271 | // run the same test WITHOUT sqlite WAL enabled |
| 272 | runConnectionPoolTest(false); |
| 273 | } |
| 274 | |
| 275 | private void runConnectionPoolTest(boolean useWal) throws Exception { |
| 276 | int M = 3; |
| 277 | StringBuilder[] buff = new StringBuilder[M]; |
| 278 | for (int i = 0; i < M; i++) { |
| 279 | if (useWal) { |
| 280 | // set up connection pool |
| 281 | mDatabase.enableWriteAheadLogging(); |
Vasu Nori | ffe0612 | 2010-09-27 12:32:57 -0700 | [diff] [blame] | 282 | mDatabase.mConnectionPool.setMaxPoolSize(i + 1); |
Vasu Nori | ce38b98 | 2010-07-22 13:57:13 -0700 | [diff] [blame] | 283 | } else { |
| 284 | mDatabase.disableWriteAheadLogging(); |
Vasu Nori | 6c354da | 2010-04-26 23:33:39 -0700 | [diff] [blame] | 285 | } |
| 286 | mDatabase.execSQL("CREATE TABLE t1 (i int, j int);"); |
| 287 | mDatabase.execSQL("CREATE TABLE t2 (i int, j int);"); |
| 288 | mDatabase.beginTransaction(); |
| 289 | for (int k = 0; k < 5; k++) { |
| 290 | mDatabase.execSQL("insert into t1 values(?,?);", new String[] {k+"", k+""}); |
| 291 | mDatabase.execSQL("insert into t2 values(?,?);", new String[] {k+"", k+""}); |
| 292 | } |
| 293 | mDatabase.setTransactionSuccessful(); |
| 294 | mDatabase.endTransaction(); |
| 295 | |
| 296 | // start a writer |
| 297 | Writer w = new Writer(mDatabase); |
| 298 | |
| 299 | // initialize an array of counters to be passed to the readers |
| 300 | Reader r1 = new Reader(mDatabase, "t1", w, 0); |
| 301 | Reader r2 = new Reader(mDatabase, "t2", w, 1); |
| 302 | w.start(); |
| 303 | r1.start(); |
| 304 | r2.start(); |
| 305 | |
| 306 | // wait for all threads to die |
| 307 | w.join(); |
| 308 | r1.join(); |
| 309 | r2.join(); |
| 310 | |
| 311 | // print the stats |
| 312 | int[][] counts = getCounts(); |
| 313 | buff[i] = new StringBuilder(); |
| 314 | buff[i].append("connpool-size = "); |
| 315 | buff[i].append(i + 1); |
| 316 | buff[i].append(", num xacts by writer = "); |
| 317 | buff[i].append(getNumXacts()); |
| 318 | buff[i].append(", num-reads-in-xact/NOT-in-xact by reader1 = "); |
| 319 | buff[i].append(counts[0][1] + "/" + counts[0][0]); |
| 320 | buff[i].append(", by reader2 = "); |
| 321 | buff[i].append(counts[1][1] + "/" + counts[1][0]); |
| 322 | |
| 323 | Log.i(TAG, "done testing for conn-pool-size of " + (i+1)); |
| 324 | |
| 325 | dbTeardown(); |
| 326 | dbSetUp(); |
| 327 | } |
| 328 | Log.i(TAG, "duration of test " + TIME_TO_RUN_WAL_TEST_FOR + " sec"); |
| 329 | for (int i = 0; i < M; i++) { |
| 330 | Log.i(TAG, buff[i].toString()); |
| 331 | } |
| 332 | } |
| 333 | |
| 334 | private boolean inXact = false; |
| 335 | private int numXacts; |
Vasu Nori | 57feb5d | 2010-06-22 10:39:04 -0700 | [diff] [blame] | 336 | private static final int TIME_TO_RUN_WAL_TEST_FOR = 15; // num sec this test should run |
Vasu Nori | 6c354da | 2010-04-26 23:33:39 -0700 | [diff] [blame] | 337 | private int[][] counts = new int[2][2]; |
| 338 | |
| 339 | private synchronized boolean inXact() { |
| 340 | return inXact; |
| 341 | } |
| 342 | |
| 343 | private synchronized void setInXactFlag(boolean flag) { |
| 344 | inXact = flag; |
| 345 | } |
| 346 | |
| 347 | private synchronized void setCounts(int readerNum, int[] numReads) { |
| 348 | counts[readerNum][0] = numReads[0]; |
| 349 | counts[readerNum][1] = numReads[1]; |
| 350 | } |
| 351 | |
| 352 | private synchronized int[][] getCounts() { |
| 353 | return counts; |
| 354 | } |
| 355 | |
| 356 | private synchronized void setNumXacts(int num) { |
| 357 | numXacts = num; |
| 358 | } |
| 359 | |
| 360 | private synchronized int getNumXacts() { |
| 361 | return numXacts; |
| 362 | } |
| 363 | |
| 364 | private class Writer extends Thread { |
| 365 | private SQLiteDatabase db = null; |
| 366 | public Writer(SQLiteDatabase db) { |
| 367 | this.db = db; |
| 368 | } |
| 369 | @Override public void run() { |
| 370 | // in a loop, for N sec, do the following |
| 371 | // BEGIN transaction |
| 372 | // insert into table t1, t2 |
| 373 | // Commit |
| 374 | long now = System.currentTimeMillis(); |
| 375 | int k; |
| 376 | for (k = 0;(System.currentTimeMillis() - now) / 1000 < TIME_TO_RUN_WAL_TEST_FOR; k++) { |
| 377 | db.beginTransactionNonExclusive(); |
| 378 | setInXactFlag(true); |
| 379 | for (int i = 0; i < 10; i++) { |
| 380 | db.execSQL("insert into t1 values(?,?);", new String[] {i+"", i+""}); |
| 381 | db.execSQL("insert into t2 values(?,?);", new String[] {i+"", i+""}); |
| 382 | } |
| 383 | db.setTransactionSuccessful(); |
| 384 | setInXactFlag(false); |
| 385 | db.endTransaction(); |
| 386 | } |
| 387 | setNumXacts(k); |
| 388 | } |
| 389 | } |
| 390 | |
| 391 | private class Reader extends Thread { |
| 392 | private SQLiteDatabase db = null; |
| 393 | private String table = null; |
| 394 | private Writer w = null; |
| 395 | private int readerNum; |
| 396 | private int[] numReads = new int[2]; |
| 397 | public Reader(SQLiteDatabase db, String table, Writer w, int readerNum) { |
| 398 | this.db = db; |
| 399 | this.table = table; |
| 400 | this.w = w; |
| 401 | this.readerNum = readerNum; |
| 402 | } |
| 403 | @Override public void run() { |
| 404 | // while the write is alive, in a loop do the query on a table |
| 405 | while (w.isAlive()) { |
| 406 | for (int i = 0; i < 10; i++) { |
| 407 | DatabaseUtils.longForQuery(db, "select count(*) from " + this.table, null); |
| 408 | // update count of reads |
| 409 | numReads[inXact() ? 1 : 0] += 1; |
| 410 | } |
| 411 | } |
| 412 | setCounts(readerNum, numReads); |
| 413 | } |
| 414 | } |
Vasu Nori | 7501010 | 2010-07-01 16:23:06 -0700 | [diff] [blame] | 415 | |
Vasu Nori | 65a8883 | 2010-07-16 15:14:08 -0700 | [diff] [blame] | 416 | public static class ClassToTestSqlCompilationAndCaching extends SQLiteProgram { |
Vasu Nori | e25539f | 2010-07-08 17:06:13 -0700 | [diff] [blame] | 417 | private ClassToTestSqlCompilationAndCaching(SQLiteDatabase db, String sql) { |
| 418 | super(db, sql); |
| 419 | } |
Vasu Nori | 65a8883 | 2010-07-16 15:14:08 -0700 | [diff] [blame] | 420 | public static ClassToTestSqlCompilationAndCaching create(SQLiteDatabase db, String sql) { |
Vasu Nori | e25539f | 2010-07-08 17:06:13 -0700 | [diff] [blame] | 421 | db.lock(); |
| 422 | try { |
| 423 | return new ClassToTestSqlCompilationAndCaching(db, sql); |
| 424 | } finally { |
| 425 | db.unlock(); |
| 426 | } |
| 427 | } |
| 428 | } |
| 429 | |
Vasu Nori | b729dcc | 2010-09-14 11:35:49 -0700 | [diff] [blame] | 430 | @SmallTest |
| 431 | public void testLruCachingOfSqliteCompiledSqlObjs() { |
| 432 | createTableAndClearCache(); |
| 433 | // set cache size |
| 434 | int N = SQLiteDatabase.MAX_SQL_CACHE_SIZE; |
| 435 | mDatabase.setMaxSqlCacheSize(N); |
| 436 | |
| 437 | // do N+1 queries - and when the 0th entry is removed from LRU cache due to the |
| 438 | // insertion of (N+1)th entry, make sure 0th entry is closed |
| 439 | ArrayList<Integer> stmtObjs = new ArrayList<Integer>(); |
| 440 | ArrayList<String> sqlStrings = new ArrayList<String>(); |
| 441 | int stmt0 = 0; |
| 442 | for (int i = 0; i < N+1; i++) { |
| 443 | String s = "insert into test values(" + i + ",?);"; |
| 444 | sqlStrings.add(s); |
| 445 | ClassToTestSqlCompilationAndCaching c = |
| 446 | ClassToTestSqlCompilationAndCaching.create(mDatabase, s); |
| 447 | int n = c.getSqlStatementId(); |
| 448 | stmtObjs.add(i, n); |
| 449 | if (i == 0) { |
| 450 | // save the statementId of this obj. we want to make sure it is thrown out of |
| 451 | // the cache at the end of this test. |
| 452 | stmt0 = n; |
| 453 | } |
| 454 | c.close(); |
| 455 | } |
| 456 | // is 0'th entry out of the cache? it should be in the list of statementIds |
| 457 | // corresponding to the pre-compiled sql statements to be finalized. |
| 458 | assertTrue(mDatabase.getQueuedUpStmtList().contains(stmt0)); |
| 459 | for (int i = 1; i < N+1; i++) { |
| 460 | SQLiteCompiledSql compSql = mDatabase.getCompiledStatementForSql(sqlStrings.get(i)); |
| 461 | assertNotNull(compSql); |
| 462 | assertTrue(stmtObjs.contains(compSql.nStatement)); |
| 463 | } |
| 464 | } |
| 465 | |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 466 | @MediumTest |
| 467 | public void testDbCloseReleasingAllCachedSql() { |
| 468 | mDatabase.execSQL("CREATE TABLE test (_id INTEGER PRIMARY KEY, text1 TEXT, text2 TEXT, " + |
| 469 | "num1 INTEGER, num2 INTEGER, image BLOB);"); |
| 470 | final String statement = "DELETE FROM test WHERE _id=?;"; |
| 471 | SQLiteStatement statementDoNotClose = mDatabase.compileStatement(statement); |
Vasu Nori | 2827d6d | 2010-07-04 00:26:18 -0700 | [diff] [blame] | 472 | statementDoNotClose.bindLong(1, 1); |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 473 | /* do not close statementDoNotClose object. |
| 474 | * That should leave it in SQLiteDatabase.mPrograms. |
| 475 | * mDatabase.close() in tearDown() should release it. |
| 476 | */ |
| 477 | } |
| 478 | |
Vasu Nori | ce38b98 | 2010-07-22 13:57:13 -0700 | [diff] [blame] | 479 | private void createTableAndClearCache() { |
| 480 | mDatabase.disableWriteAheadLogging(); |
| 481 | mDatabase.execSQL("DROP TABLE IF EXISTS " + TEST_TABLE); |
| 482 | mDatabase.execSQL("CREATE TABLE " + TEST_TABLE + " (i int, j int);"); |
| 483 | mDatabase.enableWriteAheadLogging(); |
| 484 | mDatabase.lock(); |
| 485 | // flush the above statement from cache and close all the pending statements to be released |
Vasu Nori | b729dcc | 2010-09-14 11:35:49 -0700 | [diff] [blame] | 486 | mDatabase.deallocCachedSqlStatements(); |
Vasu Nori | ce38b98 | 2010-07-22 13:57:13 -0700 | [diff] [blame] | 487 | mDatabase.closePendingStatements(); |
| 488 | mDatabase.unlock(); |
| 489 | assertEquals(0, mDatabase.getQueuedUpStmtList().size()); |
| 490 | } |
| 491 | |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 492 | /** |
| 493 | * test to make sure the statement finalizations are not done right away but |
Vasu Nori | 57feb5d | 2010-06-22 10:39:04 -0700 | [diff] [blame] | 494 | * piggy-backed onto the next sql statement execution on the same database. |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 495 | */ |
| 496 | @SmallTest |
| 497 | public void testStatementClose() { |
Vasu Nori | ce38b98 | 2010-07-22 13:57:13 -0700 | [diff] [blame] | 498 | createTableAndClearCache(); |
| 499 | // fill up statement cache in mDatabase |
Vasu Nori | e25539f | 2010-07-08 17:06:13 -0700 | [diff] [blame] | 500 | int N = SQLiteDatabase.MAX_SQL_CACHE_SIZE; |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 501 | mDatabase.setMaxSqlCacheSize(N); |
| 502 | SQLiteStatement stmt; |
| 503 | int stmt0Id = 0; |
| 504 | for (int i = 0; i < N; i ++) { |
Vasu Nori | e25539f | 2010-07-08 17:06:13 -0700 | [diff] [blame] | 505 | ClassToTestSqlCompilationAndCaching c = |
| 506 | ClassToTestSqlCompilationAndCaching.create(mDatabase, |
| 507 | "insert into test values(" + i + ", ?);"); |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 508 | // keep track of 0th entry |
| 509 | if (i == 0) { |
Vasu Nori | e25539f | 2010-07-08 17:06:13 -0700 | [diff] [blame] | 510 | stmt0Id = c.getSqlStatementId(); |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 511 | } |
Vasu Nori | e25539f | 2010-07-08 17:06:13 -0700 | [diff] [blame] | 512 | c.close(); |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 513 | } |
| 514 | |
| 515 | // add one more to the cache - and the above 'stmt0Id' should fall out of cache |
Vasu Nori | e25539f | 2010-07-08 17:06:13 -0700 | [diff] [blame] | 516 | ClassToTestSqlCompilationAndCaching stmt1 = |
| 517 | ClassToTestSqlCompilationAndCaching.create(mDatabase, |
| 518 | "insert into test values(100, ?);"); |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 519 | stmt1.close(); |
| 520 | |
| 521 | // the above close() should have queuedUp the statement for finalization |
| 522 | ArrayList<Integer> statementIds = mDatabase.getQueuedUpStmtList(); |
| 523 | assertTrue(statementIds.contains(stmt0Id)); |
| 524 | |
| 525 | // execute something to see if this statement gets finalized |
| 526 | mDatabase.execSQL("delete from test where i = 10;"); |
| 527 | statementIds = mDatabase.getQueuedUpStmtList(); |
Vasu Nori | ce38b98 | 2010-07-22 13:57:13 -0700 | [diff] [blame] | 528 | assertFalse(statementIds.contains(stmt0Id)); |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 529 | } |
| 530 | |
| 531 | /** |
| 532 | * same as above - except that the statement to be finalized is from Thread # 1. |
Vasu Nori | 57feb5d | 2010-06-22 10:39:04 -0700 | [diff] [blame] | 533 | * and it is eventually finalized in Thread # 2 when it executes a SQL statement. |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 534 | * @throws InterruptedException |
| 535 | */ |
| 536 | @LargeTest |
| 537 | public void testStatementCloseDiffThread() throws InterruptedException { |
Vasu Nori | ce38b98 | 2010-07-22 13:57:13 -0700 | [diff] [blame] | 538 | createTableAndClearCache(); |
| 539 | final int N = SQLiteDatabase.MAX_SQL_CACHE_SIZE; |
| 540 | mDatabase.setMaxSqlCacheSize(N); |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 541 | // fill up statement cache in mDatabase in a thread |
| 542 | Thread t1 = new Thread() { |
| 543 | @Override public void run() { |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 544 | SQLiteStatement stmt; |
Vasu Nori | ce38b98 | 2010-07-22 13:57:13 -0700 | [diff] [blame] | 545 | for (int i = 0; i < N; i++) { |
Vasu Nori | e25539f | 2010-07-08 17:06:13 -0700 | [diff] [blame] | 546 | ClassToTestSqlCompilationAndCaching c = |
Vasu Nori | ce38b98 | 2010-07-22 13:57:13 -0700 | [diff] [blame] | 547 | ClassToTestSqlCompilationAndCaching.create(getDb(), |
Vasu Nori | e25539f | 2010-07-08 17:06:13 -0700 | [diff] [blame] | 548 | "insert into test values(" + i + ", ?);"); |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 549 | // keep track of 0th entry |
| 550 | if (i == 0) { |
Vasu Nori | e25539f | 2010-07-08 17:06:13 -0700 | [diff] [blame] | 551 | stmt0Id = c.getSqlStatementId(); |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 552 | } |
Vasu Nori | e25539f | 2010-07-08 17:06:13 -0700 | [diff] [blame] | 553 | c.close(); |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 554 | } |
| 555 | } |
| 556 | }; |
| 557 | t1.start(); |
| 558 | // wait for the thread to finish |
| 559 | t1.join(); |
Vasu Nori | ce38b98 | 2010-07-22 13:57:13 -0700 | [diff] [blame] | 560 | // mDatabase shouldn't have any statements to be released |
| 561 | assertEquals(0, mDatabase.getQueuedUpStmtList().size()); |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 562 | |
| 563 | // add one more to the cache - and the above 'stmt0Id' should fall out of cache |
| 564 | // just for the heck of it, do it in a separate thread |
| 565 | Thread t2 = new Thread() { |
| 566 | @Override public void run() { |
Vasu Nori | e25539f | 2010-07-08 17:06:13 -0700 | [diff] [blame] | 567 | ClassToTestSqlCompilationAndCaching stmt1 = |
Vasu Nori | ce38b98 | 2010-07-22 13:57:13 -0700 | [diff] [blame] | 568 | ClassToTestSqlCompilationAndCaching.create(getDb(), |
| 569 | "insert into test values(100, ?);"); |
| 570 | stmt1.bindLong(1, 1); |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 571 | stmt1.close(); |
| 572 | } |
| 573 | }; |
| 574 | t2.start(); |
| 575 | t2.join(); |
| 576 | |
Vasu Nori | ce38b98 | 2010-07-22 13:57:13 -0700 | [diff] [blame] | 577 | // close() in the above thread should have queuedUp the stmt0Id for finalization |
| 578 | ArrayList<Integer> statementIds = getDb().getQueuedUpStmtList(); |
| 579 | assertTrue(statementIds.contains(getStmt0Id())); |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 580 | assertEquals(1, statementIds.size()); |
| 581 | |
| 582 | // execute something to see if this statement gets finalized |
| 583 | // again do it in a separate thread |
| 584 | Thread t3 = new Thread() { |
| 585 | @Override public void run() { |
Vasu Nori | ce38b98 | 2010-07-22 13:57:13 -0700 | [diff] [blame] | 586 | getDb().execSQL("delete from test where i = 10;"); |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 587 | } |
| 588 | }; |
| 589 | t3.start(); |
| 590 | t3.join(); |
| 591 | |
| 592 | // is the statement finalized? |
Vasu Nori | ce38b98 | 2010-07-22 13:57:13 -0700 | [diff] [blame] | 593 | statementIds = getDb().getQueuedUpStmtList(); |
| 594 | assertFalse(statementIds.contains(getStmt0Id())); |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 595 | } |
| 596 | |
| 597 | private volatile int stmt0Id = 0; |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 598 | private synchronized int getStmt0Id() { |
| 599 | return this.stmt0Id; |
| 600 | } |
| 601 | |
| 602 | /** |
| 603 | * same as above - except that the queue of statements to be finalized are finalized |
| 604 | * by database close() operation. |
| 605 | */ |
| 606 | @LargeTest |
| 607 | public void testStatementCloseByDbClose() throws InterruptedException { |
Vasu Nori | ce38b98 | 2010-07-22 13:57:13 -0700 | [diff] [blame] | 608 | createTableAndClearCache(); |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 609 | // fill up statement cache in mDatabase in a thread |
| 610 | Thread t1 = new Thread() { |
| 611 | @Override public void run() { |
Vasu Nori | e25539f | 2010-07-08 17:06:13 -0700 | [diff] [blame] | 612 | int N = SQLiteDatabase.MAX_SQL_CACHE_SIZE; |
Vasu Nori | ce38b98 | 2010-07-22 13:57:13 -0700 | [diff] [blame] | 613 | getDb().setMaxSqlCacheSize(N); |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 614 | SQLiteStatement stmt; |
| 615 | for (int i = 0; i < N; i ++) { |
Vasu Nori | e25539f | 2010-07-08 17:06:13 -0700 | [diff] [blame] | 616 | ClassToTestSqlCompilationAndCaching c = |
Vasu Nori | ce38b98 | 2010-07-22 13:57:13 -0700 | [diff] [blame] | 617 | ClassToTestSqlCompilationAndCaching.create(getDb(), |
Vasu Nori | e25539f | 2010-07-08 17:06:13 -0700 | [diff] [blame] | 618 | "insert into test values(" + i + ", ?);"); |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 619 | // keep track of 0th entry |
| 620 | if (i == 0) { |
Vasu Nori | e25539f | 2010-07-08 17:06:13 -0700 | [diff] [blame] | 621 | stmt0Id = c.getSqlStatementId(); |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 622 | } |
Vasu Nori | e25539f | 2010-07-08 17:06:13 -0700 | [diff] [blame] | 623 | c.close(); |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 624 | } |
| 625 | } |
| 626 | }; |
| 627 | t1.start(); |
| 628 | // wait for the thread to finish |
| 629 | t1.join(); |
| 630 | |
| 631 | // add one more to the cache - and the above 'stmt0Id' should fall out of cache |
| 632 | // just for the heck of it, do it in a separate thread |
| 633 | Thread t2 = new Thread() { |
| 634 | @Override public void run() { |
Vasu Nori | e25539f | 2010-07-08 17:06:13 -0700 | [diff] [blame] | 635 | ClassToTestSqlCompilationAndCaching stmt1 = |
Vasu Nori | ce38b98 | 2010-07-22 13:57:13 -0700 | [diff] [blame] | 636 | ClassToTestSqlCompilationAndCaching.create(getDb(), |
Vasu Nori | e25539f | 2010-07-08 17:06:13 -0700 | [diff] [blame] | 637 | "insert into test values(100, ?);"); |
Vasu Nori | 2827d6d | 2010-07-04 00:26:18 -0700 | [diff] [blame] | 638 | stmt1.bindLong(1, 1); |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 639 | stmt1.close(); |
| 640 | } |
| 641 | }; |
| 642 | t2.start(); |
| 643 | t2.join(); |
| 644 | |
| 645 | // close() in the above thread should have queuedUp the statement for finalization |
Vasu Nori | ce38b98 | 2010-07-22 13:57:13 -0700 | [diff] [blame] | 646 | ArrayList<Integer> statementIds = getDb().getQueuedUpStmtList(); |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 647 | assertTrue(getStmt0Id() > 0); |
| 648 | assertTrue(statementIds.contains(stmt0Id)); |
| 649 | assertEquals(1, statementIds.size()); |
| 650 | |
| 651 | // close the database. everything from mClosedStatementIds in mDatabase |
| 652 | // should be finalized and cleared from the list |
| 653 | // again do it in a separate thread |
| 654 | Thread t3 = new Thread() { |
| 655 | @Override public void run() { |
Vasu Nori | ce38b98 | 2010-07-22 13:57:13 -0700 | [diff] [blame] | 656 | getDb().close(); |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 657 | } |
| 658 | }; |
| 659 | t3.start(); |
| 660 | t3.join(); |
| 661 | |
| 662 | // check mClosedStatementIds in mDatabase. it should be empty |
Vasu Nori | ce38b98 | 2010-07-22 13:57:13 -0700 | [diff] [blame] | 663 | statementIds = getDb().getQueuedUpStmtList(); |
Vasu Nori | 59d6042 | 2010-07-03 15:37:21 -0700 | [diff] [blame] | 664 | assertEquals(0, statementIds.size()); |
| 665 | } |
Vasu Nori | ce38b98 | 2010-07-22 13:57:13 -0700 | [diff] [blame] | 666 | |
| 667 | /** |
| 668 | * This test tests usage execSQL() to begin transaction works in the following way |
| 669 | * Thread #1 does |
| 670 | * execSQL("begin transaction"); |
| 671 | * insert() |
| 672 | * Thread # 2 |
| 673 | * query() |
| 674 | * Thread#1 ("end transaction") |
| 675 | * Thread # 2 query will execute - because java layer will not have locked the SQLiteDatabase |
| 676 | * object and sqlite will consider this query to be part of the transaction. |
| 677 | * |
| 678 | * but if thread # 1 uses beginTransaction() instead of execSQL() to start transaction, |
| 679 | * then Thread # 2's query will have been blocked by java layer |
| 680 | * until Thread#1 ends transaction. |
| 681 | * |
| 682 | * @throws InterruptedException |
| 683 | */ |
| 684 | @SmallTest |
| 685 | public void testExecSqlToStartAndEndTransaction() throws InterruptedException { |
| 686 | runExecSqlToStartAndEndTransaction("END"); |
| 687 | // same as above, instead now do "COMMIT" or "ROLLBACK" instead of "END" transaction |
| 688 | runExecSqlToStartAndEndTransaction("COMMIT"); |
| 689 | runExecSqlToStartAndEndTransaction("ROLLBACK"); |
| 690 | } |
| 691 | private void runExecSqlToStartAndEndTransaction(String str) throws InterruptedException { |
| 692 | createTableAndClearCache(); |
| 693 | // disable WAL just so queries and updates use the same database connection |
| 694 | mDatabase.disableWriteAheadLogging(); |
| 695 | mDatabase.execSQL("BEGIN transaction"); |
| 696 | // even though mDatabase.beginTransaction() is not called to start transaction, |
| 697 | // mDatabase connection should now be in transaction as a result of |
| 698 | // mDatabase.execSQL("BEGIN transaction") |
| 699 | // but mDatabase.mLock should not be held by any thread |
| 700 | assertTrue(mDatabase.inTransaction()); |
| 701 | assertFalse(mDatabase.isDbLockedByCurrentThread()); |
| 702 | assertFalse(mDatabase.isDbLockedByOtherThreads()); |
| 703 | assertTrue(mDatabase.amIInTransaction()); |
| 704 | mDatabase.execSQL("INSERT into " + TEST_TABLE + " values(10, 999);"); |
| 705 | assertTrue(mDatabase.inTransaction()); |
| 706 | assertFalse(mDatabase.isDbLockedByCurrentThread()); |
| 707 | assertFalse(mDatabase.isDbLockedByOtherThreads()); |
| 708 | assertTrue(mDatabase.amIInTransaction()); |
| 709 | Thread t = new Thread() { |
| 710 | @Override public void run() { |
| 711 | assertTrue(mDatabase.amIInTransaction()); |
| 712 | assertEquals(999, DatabaseUtils.longForQuery(getDb(), |
| 713 | "select j from " + TEST_TABLE + " WHERE i = 10", null)); |
| 714 | assertTrue(getDb().inTransaction()); |
| 715 | assertFalse(getDb().isDbLockedByCurrentThread()); |
| 716 | assertFalse(getDb().isDbLockedByOtherThreads()); |
| 717 | assertTrue(mDatabase.amIInTransaction()); |
| 718 | } |
| 719 | }; |
| 720 | t.start(); |
| 721 | t.join(); |
| 722 | assertTrue(mDatabase.amIInTransaction()); |
| 723 | assertTrue(mDatabase.inTransaction()); |
| 724 | assertFalse(mDatabase.isDbLockedByCurrentThread()); |
| 725 | assertFalse(mDatabase.isDbLockedByOtherThreads()); |
| 726 | mDatabase.execSQL(str); |
| 727 | assertFalse(mDatabase.amIInTransaction()); |
| 728 | assertFalse(mDatabase.inTransaction()); |
| 729 | assertFalse(mDatabase.isDbLockedByCurrentThread()); |
| 730 | assertFalse(mDatabase.isDbLockedByOtherThreads()); |
| 731 | } |
| 732 | |
| 733 | /** |
| 734 | * test the following |
| 735 | * http://b/issue?id=2871037 |
| 736 | * Cursor cursor = db.query(...); |
| 737 | * // with WAL enabled, the above uses a pooled database connection |
| 738 | * db.beginTransaction() |
| 739 | * try { |
| 740 | * db.insert(......); |
| 741 | * cursor.requery(); |
| 742 | * // since the cursor uses pooled database connection, the above requery |
| 743 | * // will not return the results that were inserted above since the insert is |
| 744 | * // done using main database connection AND the transaction is not committed yet. |
| 745 | * // fix is to make the above cursor use the main database connection - and NOT |
| 746 | * // the pooled database connection |
| 747 | * db.setTransactionSuccessful() |
| 748 | * } finally { |
| 749 | * db.endTransaction() |
| 750 | * } |
| 751 | * |
| 752 | * @throws InterruptedException |
| 753 | */ |
| 754 | @SmallTest |
| 755 | public void testTransactionAndWalInterplay1() throws InterruptedException { |
| 756 | createTableAndClearCache(); |
| 757 | mDatabase.execSQL("INSERT into " + TEST_TABLE + " values(10, 999);"); |
| 758 | String sql = "select * from " + TEST_TABLE; |
| 759 | Cursor c = mDatabase.rawQuery(sql, null); |
| 760 | // should have 1 row in the table |
| 761 | assertEquals(1, c.getCount()); |
| 762 | mDatabase.beginTransactionNonExclusive(); |
| 763 | try { |
| 764 | mDatabase.execSQL("INSERT into " + TEST_TABLE + " values(100, 9909);"); |
| 765 | assertEquals(2, DatabaseUtils.longForQuery(mDatabase, |
| 766 | "select count(*) from " + TEST_TABLE, null)); |
| 767 | // requery on the previously opened cursor |
| 768 | // cursor should now use the main database connection and see 2 rows |
| 769 | c.requery(); |
| 770 | assertEquals(2, c.getCount()); |
| 771 | mDatabase.setTransactionSuccessful(); |
| 772 | } finally { |
| 773 | mDatabase.endTransaction(); |
| 774 | } |
| 775 | c.close(); |
| 776 | |
| 777 | // do the same test but now do the requery in a separate thread. |
| 778 | createTableAndClearCache(); |
| 779 | mDatabase.execSQL("INSERT into " + TEST_TABLE + " values(10, 999);"); |
| 780 | final Cursor c1 = mDatabase.rawQuery("select count(*) from " + TEST_TABLE, null); |
| 781 | // should have 1 row in the table |
| 782 | assertEquals(1, c1.getCount()); |
| 783 | mDatabase.beginTransactionNonExclusive(); |
| 784 | try { |
| 785 | mDatabase.execSQL("INSERT into " + TEST_TABLE + " values(100, 9909);"); |
| 786 | assertEquals(2, DatabaseUtils.longForQuery(mDatabase, |
| 787 | "select count(*) from " + TEST_TABLE, null)); |
| 788 | // query in a different thread. that causes the cursor to use a pooled connection |
| 789 | // and since this thread hasn't committed its changes, the cursor should still see only |
| 790 | // 1 row |
| 791 | Thread t = new Thread() { |
| 792 | @Override public void run() { |
| 793 | c1.requery(); |
| 794 | assertEquals(1, c1.getCount()); |
| 795 | } |
| 796 | }; |
| 797 | t.start(); |
| 798 | t.join(); |
| 799 | // should be 2 rows now - including the the row inserted above |
| 800 | mDatabase.setTransactionSuccessful(); |
| 801 | } finally { |
| 802 | mDatabase.endTransaction(); |
| 803 | } |
| 804 | c1.close(); |
| 805 | } |
| 806 | |
| 807 | /** |
| 808 | * This test is same as {@link #testTransactionAndWalInterplay1()} except the following: |
| 809 | * instead of mDatabase.beginTransactionNonExclusive(), use execSQL("BEGIN transaction") |
| 810 | * and instead of mDatabase.endTransaction(), use execSQL("END"); |
| 811 | */ |
| 812 | @SmallTest |
| 813 | public void testTransactionAndWalInterplay2() throws InterruptedException { |
| 814 | createTableAndClearCache(); |
| 815 | mDatabase.execSQL("INSERT into " + TEST_TABLE + " values(10, 999);"); |
| 816 | String sql = "select * from " + TEST_TABLE; |
| 817 | Cursor c = mDatabase.rawQuery(sql, null); |
| 818 | // should have 1 row in the table |
| 819 | assertEquals(1, c.getCount()); |
| 820 | mDatabase.execSQL("BEGIN transaction"); |
| 821 | try { |
| 822 | mDatabase.execSQL("INSERT into " + TEST_TABLE + " values(100, 9909);"); |
| 823 | assertEquals(2, DatabaseUtils.longForQuery(mDatabase, |
| 824 | "select count(*) from " + TEST_TABLE, null)); |
| 825 | // requery on the previously opened cursor |
| 826 | // cursor should now use the main database connection and see 2 rows |
| 827 | c.requery(); |
| 828 | assertEquals(2, c.getCount()); |
| 829 | } finally { |
| 830 | mDatabase.execSQL("commit;"); |
| 831 | } |
| 832 | c.close(); |
| 833 | |
| 834 | // do the same test but now do the requery in a separate thread. |
| 835 | createTableAndClearCache(); |
| 836 | mDatabase.execSQL("INSERT into " + TEST_TABLE + " values(10, 999);"); |
| 837 | final Cursor c1 = mDatabase.rawQuery("select count(*) from " + TEST_TABLE, null); |
| 838 | // should have 1 row in the table |
| 839 | assertEquals(1, c1.getCount()); |
| 840 | mDatabase.execSQL("BEGIN transaction"); |
| 841 | try { |
| 842 | mDatabase.execSQL("INSERT into " + TEST_TABLE + " values(100, 9909);"); |
| 843 | assertEquals(2, DatabaseUtils.longForQuery(mDatabase, |
| 844 | "select count(*) from " + TEST_TABLE, null)); |
| 845 | // query in a different thread. but since the transaction is started using |
| 846 | // execSQ() instead of beginTransaction(), cursor's query is considered part of |
Vasu Nori | cc6f549 | 2010-08-23 17:05:25 -0700 | [diff] [blame] | 847 | // the same transaction - and hence it should see the above inserted row |
Vasu Nori | ce38b98 | 2010-07-22 13:57:13 -0700 | [diff] [blame] | 848 | Thread t = new Thread() { |
| 849 | @Override public void run() { |
| 850 | c1.requery(); |
| 851 | assertEquals(1, c1.getCount()); |
| 852 | } |
| 853 | }; |
| 854 | t.start(); |
| 855 | t.join(); |
| 856 | // should be 2 rows now - including the the row inserted above |
| 857 | } finally { |
| 858 | mDatabase.execSQL("commit"); |
| 859 | } |
| 860 | c1.close(); |
| 861 | } |
| 862 | |
| 863 | /** |
| 864 | * This test is same as {@link #testTransactionAndWalInterplay2()} except the following: |
Vasu Nori | cc6f549 | 2010-08-23 17:05:25 -0700 | [diff] [blame] | 865 | * instead of committing the data, do rollback and make sure the data seen by the query |
Vasu Nori | ce38b98 | 2010-07-22 13:57:13 -0700 | [diff] [blame] | 866 | * within the transaction is now gone. |
| 867 | */ |
| 868 | @SmallTest |
Vasu Nori | cc6f549 | 2010-08-23 17:05:25 -0700 | [diff] [blame] | 869 | public void testTransactionAndWalInterplay3() { |
Vasu Nori | ce38b98 | 2010-07-22 13:57:13 -0700 | [diff] [blame] | 870 | createTableAndClearCache(); |
| 871 | mDatabase.execSQL("INSERT into " + TEST_TABLE + " values(10, 999);"); |
| 872 | String sql = "select * from " + TEST_TABLE; |
| 873 | Cursor c = mDatabase.rawQuery(sql, null); |
| 874 | // should have 1 row in the table |
| 875 | assertEquals(1, c.getCount()); |
| 876 | mDatabase.execSQL("BEGIN transaction"); |
| 877 | try { |
| 878 | mDatabase.execSQL("INSERT into " + TEST_TABLE + " values(100, 9909);"); |
| 879 | assertEquals(2, DatabaseUtils.longForQuery(mDatabase, |
| 880 | "select count(*) from " + TEST_TABLE, null)); |
| 881 | // requery on the previously opened cursor |
| 882 | // cursor should now use the main database connection and see 2 rows |
| 883 | c.requery(); |
| 884 | assertEquals(2, c.getCount()); |
| 885 | } finally { |
| 886 | // rollback the change |
| 887 | mDatabase.execSQL("rollback;"); |
| 888 | } |
| 889 | // since the change is rolled back, do the same query again and should now find only 1 row |
| 890 | c.requery(); |
| 891 | assertEquals(1, c.getCount()); |
| 892 | assertEquals(1, DatabaseUtils.longForQuery(mDatabase, |
| 893 | "select count(*) from " + TEST_TABLE, null)); |
| 894 | c.close(); |
| 895 | } |
Vasu Nori | cc6f549 | 2010-08-23 17:05:25 -0700 | [diff] [blame] | 896 | |
Vasu Nori | cc1eaf6 | 2011-03-14 19:22:16 -0700 | [diff] [blame] | 897 | @SmallTest |
| 898 | public void testAttachDb() { |
| 899 | String newDb = "/sdcard/mydata.db"; |
| 900 | File f = new File(newDb); |
| 901 | if (f.exists()) { |
| 902 | f.delete(); |
| 903 | } |
| 904 | assertFalse(f.exists()); |
| 905 | SQLiteDatabase db = SQLiteDatabase.openOrCreateDatabase(newDb, null); |
| 906 | db.execSQL("create table test1 (i int);"); |
| 907 | db.execSQL("insert into test1 values(1);"); |
| 908 | db.execSQL("insert into test1 values(11);"); |
| 909 | Cursor c = null; |
| 910 | try { |
| 911 | c = db.rawQuery("select * from test1", null); |
| 912 | int count = c.getCount(); |
| 913 | Log.i(TAG, "count: " + count); |
| 914 | assertEquals(2, count); |
| 915 | } finally { |
| 916 | c.close(); |
| 917 | db.close(); |
| 918 | c = null; |
| 919 | } |
| 920 | |
| 921 | mDatabase.execSQL("attach database ? as newDb" , new String[]{newDb}); |
| 922 | Cursor c1 = null; |
| 923 | try { |
| 924 | c1 = mDatabase.rawQuery("select * from newDb.test1", null); |
| 925 | assertEquals(2, c1.getCount()); |
| 926 | } catch (Exception e) { |
| 927 | fail("unexpected exception: " + e.getMessage()); |
| 928 | } finally { |
| 929 | if (c1 != null) { |
| 930 | c1.close(); |
| 931 | } |
| 932 | } |
| 933 | List<Pair<String, String>> dbs = mDatabase.getAttachedDbs(); |
| 934 | for (Pair<String, String> p: dbs) { |
| 935 | Log.i(TAG, "attached dbs: " + p.first + " : " + p.second); |
| 936 | } |
| 937 | assertEquals(2, dbs.size()); |
| 938 | } |
| 939 | |
Vasu Nori | cc6f549 | 2010-08-23 17:05:25 -0700 | [diff] [blame] | 940 | /** |
| 941 | * http://b/issue?id=2943028 |
| 942 | * SQLiteOpenHelper maintains a Singleton even if it is in bad state. |
| 943 | */ |
| 944 | @SmallTest |
| 945 | public void testCloseAndReopen() { |
| 946 | mDatabase.close(); |
| 947 | TestOpenHelper helper = new TestOpenHelper(getContext(), DB_NAME, null, |
| 948 | CURRENT_DATABASE_VERSION, new DefaultDatabaseErrorHandler()); |
| 949 | mDatabase = helper.getWritableDatabase(); |
| 950 | createTableAndClearCache(); |
| 951 | mDatabase.execSQL("INSERT into " + TEST_TABLE + " values(10, 999);"); |
| 952 | Cursor c = mDatabase.query(TEST_TABLE, new String[]{"i", "j"}, null, null, null, null, null); |
| 953 | assertEquals(1, c.getCount()); |
| 954 | c.close(); |
| 955 | mDatabase.close(); |
| 956 | assertFalse(mDatabase.isOpen()); |
| 957 | mDatabase = helper.getReadableDatabase(); |
| 958 | assertTrue(mDatabase.isOpen()); |
| 959 | c = mDatabase.query(TEST_TABLE, new String[]{"i", "j"}, null, null, null, null, null); |
| 960 | assertEquals(1, c.getCount()); |
| 961 | c.close(); |
| 962 | } |
| 963 | private class TestOpenHelper extends SQLiteOpenHelper { |
| 964 | public TestOpenHelper(Context context, String name, CursorFactory factory, int version, |
| 965 | DatabaseErrorHandler errorHandler) { |
| 966 | super(context, name, factory, version, errorHandler); |
| 967 | } |
| 968 | @Override public void onCreate(SQLiteDatabase db) {} |
| 969 | @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {} |
| 970 | } |
Vasu Nori | 6c354da | 2010-04-26 23:33:39 -0700 | [diff] [blame] | 971 | } |