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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License.
17   */
18  package org.apache.omid.tso.client;
19  
20  import com.google.common.collect.Sets;
21  import org.apache.omid.committable.CommitTable;
22  import org.apache.omid.committable.InMemoryCommitTable;
23  import org.apache.omid.tso.util.DummyCellIdImpl;
24  import org.testng.annotations.Test;
25  
26  import java.util.concurrent.ExecutionException;
27  
28  import static org.testng.Assert.assertEquals;
29  import static org.testng.Assert.assertTrue;
30  import static org.testng.Assert.fail;
31  
32  public class TestMockTSOClient {
33  
34      final static public CellId c1 = new DummyCellIdImpl(0xdeadbeefL);
35      final static public CellId c2 = new DummyCellIdImpl(-0xfeedcafeL);
36  
37      @Test(timeOut = 10000)
38      public void testConflicts() throws Exception {
39          CommitTable commitTable = new InMemoryCommitTable();
40          TSOProtocol client = new MockTSOClient(commitTable.getWriter());
41  
42          long tr1 = client.getNewStartTimestamp().get();
43          long tr2 = client.getNewStartTimestamp().get();
44  
45          client.commit(tr1, Sets.newHashSet(c1)).get();
46  
47          try {
48              client.commit(tr2, Sets.newHashSet(c1, c2)).get();
49              fail("Shouldn't have committed");
50          } catch (ExecutionException ee) {
51              assertEquals(ee.getCause().getClass(), AbortException.class, "Should have aborted");
52          }
53      }
54  
55      @Test(timeOut = 10000)
56      public void testWatermarkUpdate() throws Exception {
57          CommitTable commitTable = new InMemoryCommitTable();
58          TSOProtocol client = new MockTSOClient(commitTable.getWriter());
59          CommitTable.Client commitTableClient = commitTable.getClient();
60  
61          long tr1 = client.getNewStartTimestamp().get();
62          client.commit(tr1, Sets.newHashSet(c1)).get();
63  
64          long initWatermark = commitTableClient.readLowWatermark().get();
65  
66          long tr2 = client.getNewStartTimestamp().get();
67          client.commit(tr2, Sets.newHashSet(c1)).get();
68  
69          long newWatermark = commitTableClient.readLowWatermark().get();
70          assertTrue(newWatermark > initWatermark, "new low watermark should be bigger");
71      }
72  }