/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you 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.
   */
  package org.apache.omid.tso.client;
  
  import org.apache.phoenix.thirdparty.com.google.common.collect.Sets;
  
  import org.apache.omid.committable.CommitTable;
  import org.apache.omid.committable.InMemoryCommitTable;
  import org.apache.omid.tso.util.DummyCellIdImpl;
  import org.testng.annotations.Test;
  
  import java.util.HashSet;
  import java.util.concurrent.ExecutionException;
  
  import static org.testng.Assert.assertEquals;
  import static org.testng.Assert.assertTrue;
  import static org.testng.Assert.fail;
  
  public class TestMockTSOClient {
  
      final static public CellId c1 = new DummyCellIdImpl(0xdeadbeefL);
      final static public CellId c2 = new DummyCellIdImpl(-0xfeedcafeL);
  
      @Test(timeOut = 10_000)
      public void testConflicts() throws Exception {
          CommitTable commitTable = new InMemoryCommitTable();
          TSOProtocol client = new MockTSOClient(commitTable.getWriter());
  
          long tr1 = client.getNewStartTimestamp().get();
          long tr2 = client.getNewStartTimestamp().get();
  
          client.commit(tr1, Sets.newHashSet(c1), new HashSet<CellId>()).get();
  
          try {
              client.commit(tr2, Sets.newHashSet(c1, c2), new HashSet<CellId>()).get();
              fail("Shouldn't have committed");
          } catch (ExecutionException ee) {
              assertEquals(ee.getCause().getClass(), AbortException.class, "Should have aborted");
          }
      }
  
      @Test(timeOut = 10_000)
      public void testWatermarkUpdate() throws Exception {
          CommitTable commitTable = new InMemoryCommitTable();
          TSOProtocol client = new MockTSOClient(commitTable.getWriter());
          CommitTable.Client commitTableClient = commitTable.getClient();
  
          long tr1 = client.getNewStartTimestamp().get();
          client.commit(tr1, Sets.newHashSet(c1), new HashSet<CellId>()).get();
  
          long initWatermark = commitTableClient.readLowWatermark().get();
  
          long tr2 = client.getNewStartTimestamp().get();
          client.commit(tr2, Sets.newHashSet(c1), new HashSet<CellId>()).get();
  
          long newWatermark = commitTableClient.readLowWatermark().get();
          assertTrue(newWatermark > initWatermark, "new low watermark should be bigger");
      }
  }