/**
* Copyright (c) 2011 Yahoo! Inc. All rights reserved.
*
* 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. See accompanying LICENSE file.
*/
package com.yahoo.omid.tso;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
import com.yahoo.omid.tso.messages.AbortedTransactionReport;
import com.yahoo.omid.tso.messages.CommitRequest;
import com.yahoo.omid.tso.messages.CommitResponse;
import com.yahoo.omid.tso.messages.CommittedTransactionReport;
import com.yahoo.omid.tso.messages.TimestampRequest;
import com.yahoo.omid.tso.messages.TimestampResponse;
public class TestReadAlgorithm extends TSOTestBase {
@Test
public void testReadAlgorithm() throws Exception {
secondClientHandler.sendMessage(new TimestampRequest());
secondClientHandler.receiveBootstrap();
TimestampResponse tr1 = secondClientHandler.receiveMessage(TimestampResponse.class);
clientHandler.sendMessage(new TimestampRequest());
clientHandler.sendMessage(new TimestampRequest());
clientHandler.receiveBootstrap();
TimestampResponse tr2 = clientHandler.receiveMessage(TimestampResponse.class);
TimestampResponse tr3 = clientHandler.receiveMessage(TimestampResponse.class);
clientHandler.setAutoFullAbort(false);
clientHandler.sendMessage(new CommitRequest(tr2.timestamp, new RowKey[] { r1 }));
CommitResponse cr1 = clientHandler.receiveMessage(CommitResponse.class);
assertTrue(cr1.committed);
clientHandler.sendMessage(new CommitRequest(tr3.timestamp, new RowKey[] { r1, r2 }));
CommitResponse cr2 = clientHandler.receiveMessage(CommitResponse.class);
assertFalse(cr2.committed);
secondClientHandler.sendMessage(new TimestampRequest());
secondClientHandler.receiveMessage(CommittedTransactionReport.class);
secondClientHandler.receiveMessage(AbortedTransactionReport.class);
TimestampResponse tr4 = secondClientHandler.receiveMessage(TimestampResponse.class);
// Transaction half aborted
assertFalse(secondClientHandler.validRead(tr3.timestamp, tr4.timestamp));
// Transaction committed after start timestamp
assertFalse(secondClientHandler.validRead(tr2.timestamp, tr1.timestamp));
// Transaction committed before start timestamp
assertTrue(secondClientHandler.validRead(tr2.timestamp, tr4.timestamp));
}
}