/*
* Syncany, www.syncany.org
* Copyright (C) 2011-2016 Philipp C. Heckel <philipp.heckel@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.syncany.tests.integration.scenarios;
import static org.junit.Assert.assertEquals;
import org.apache.commons.io.FileUtils;
import org.junit.Test;
import org.syncany.database.DatabaseConnectionFactory;
import org.syncany.operations.cleanup.CleanupOperationOptions;
import org.syncany.plugins.local.LocalTransferSettings;
import org.syncany.tests.util.TestClient;
import org.syncany.tests.util.TestConfigUtil;
import org.syncany.tests.util.TestSqlUtil;
public class Issue288ScenarioTest {
@Test
public void testIssue288() throws Exception {
/*
* This tests issue #288, an issue in which a file with duplicate chunks are created
* incorrectly, because the cleanup throws away too many entries in the filecontent_chunks
* database table.
*
* The test first creates a file with duplicate chunks, then syncs this file, and then
* moves this file on both clients -- that forces the other client to recreate the file
* from scratch.
*/
// Setup
LocalTransferSettings testConnection = (LocalTransferSettings) TestConfigUtil.createTestLocalConnection();
TestClient clientA = new TestClient("A", testConnection);
TestClient clientB = new TestClient("B", testConnection);
java.sql.Connection databaseConnectionA = DatabaseConnectionFactory.createConnection(clientA.getDatabaseFile(), false);
java.sql.Connection databaseConnectionB = DatabaseConnectionFactory.createConnection(clientB.getDatabaseFile(), false);
CleanupOperationOptions cleanupOptionsKeepOne = new CleanupOperationOptions();
cleanupOptionsKeepOne.setForce(true);
// Create file content with two duplicate chunks
// The file has 4 chunks (4 * 512 bytes), the middle chunks are identical
byte[] fileContentA = new byte[2*1024*1024]; // 1 MB
for (int i=0; i<512*1024; i++) { // First chunk
fileContentA[i] = (byte) i;
}
for (int i=512*1024; i<1536*1024; i++) { // Two identical middle chunks
fileContentA[i] = 99;
}
for (int i=1536*1024; i<2*1024*1024; i++) { // Last chunk
fileContentA[i] = (byte) (i+i);
}
FileUtils.writeByteArrayToFile(clientA.getLocalFile("fileA"), fileContentA);
clientA.upWithForceChecksum();
assertEquals("3", TestSqlUtil.runSqlSelect("select count(*) from chunk", databaseConnectionA));
assertEquals("4", TestSqlUtil.runSqlSelect("select count(*) from filecontent_chunk", databaseConnectionA));
// Sync file to client B
clientB.down();
assertEquals("3", TestSqlUtil.runSqlSelect("select count(*) from chunk", databaseConnectionB));
assertEquals("4", TestSqlUtil.runSqlSelect("select count(*) from filecontent_chunk", databaseConnectionB));
// Move file, sync again and perform cleanup (wipe everything but one file version)
clientA.moveFile("fileA", "fileA-moved");
clientA.upWithForceChecksum();
clientA.cleanup(cleanupOptionsKeepOne);
// Delete file locally and sync down
clientB.deleteFile("fileA");
clientB.down(); // <<<< This throws an exception!
// Tear down
clientB.deleteTestData();
clientA.deleteTestData();
}
}