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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  
22  import org.apache.omid.committable.CommitTable;
23  import org.apache.omid.committable.InMemoryCommitTable;
24  import org.apache.omid.tso.util.DummyCellIdImpl;
25  import org.testng.annotations.Test;
26  
27  import java.util.HashSet;
28  import java.util.concurrent.ExecutionException;
29  
30  import static org.testng.Assert.assertEquals;
31  import static org.testng.Assert.assertTrue;
32  import static org.testng.Assert.fail;
33  
34  public class TestMockTSOClient {
35  
36      final static public CellId c1 = new DummyCellIdImpl(0xdeadbeefL);
37      final static public CellId c2 = new DummyCellIdImpl(-0xfeedcafeL);
38  
39      @Test(timeOut = 10_000)
40      public void testConflicts() throws Exception {
41          CommitTable commitTable = new InMemoryCommitTable();
42          TSOProtocol client = new MockTSOClient(commitTable.getWriter());
43  
44          long tr1 = client.getNewStartTimestamp().get();
45          long tr2 = client.getNewStartTimestamp().get();
46  
47          client.commit(tr1, Sets.newHashSet(c1), new HashSet<CellId>()).get();
48  
49          try {
50              client.commit(tr2, Sets.newHashSet(c1, c2), new HashSet<CellId>()).get();
51              fail("Shouldn't have committed");
52          } catch (ExecutionException ee) {
53              assertEquals(ee.getCause().getClass(), AbortException.class, "Should have aborted");
54          }
55      }
56  
57      @Test(timeOut = 10_000)
58      public void testWatermarkUpdate() throws Exception {
59          CommitTable commitTable = new InMemoryCommitTable();
60          TSOProtocol client = new MockTSOClient(commitTable.getWriter());
61          CommitTable.Client commitTableClient = commitTable.getClient();
62  
63          long tr1 = client.getNewStartTimestamp().get();
64          client.commit(tr1, Sets.newHashSet(c1), new HashSet<CellId>()).get();
65  
66          long initWatermark = commitTableClient.readLowWatermark().get();
67  
68          long tr2 = client.getNewStartTimestamp().get();
69          client.commit(tr2, Sets.newHashSet(c1), new HashSet<CellId>()).get();
70  
71          long newWatermark = commitTableClient.readLowWatermark().get();
72          assertTrue(newWatermark > initWatermark, "new low watermark should be bigger");
73      }
74  }