hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestFlushRegionEntry.java

/**
 * 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.hadoop.hbase.regionserver;

import static org.junit.Assert.assertEquals;
import static org.mockito.Mockito.doReturn;
import static org.mockito.Mockito.mock;
import org.apache.hadoop.hbase.HBaseClassTestRule;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.RegionInfo;
import org.apache.hadoop.hbase.client.RegionInfoBuilder;
import org.apache.hadoop.hbase.regionserver.MemStoreFlusher.FlushRegionEntry;
import org.apache.hadoop.hbase.testclassification.RegionServerTests;
import org.apache.hadoop.hbase.testclassification.SmallTests;
import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
import org.apache.hadoop.hbase.util.ManualEnvironmentEdge;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.ClassRule;
import org.junit.Rule;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.rules.TestName;

@Category({ RegionServerTests.class, SmallTests.class })
public class TestFlushRegionEntry {

  @ClassRule
  public static final HBaseClassTestRule CLASS_RULE =
      HBaseClassTestRule.forClass(TestFlushRegionEntry.class);

  @Rule
  public TestName name = new TestName();

  @BeforeClass
  public static void setUp() throws Exception {
    ManualEnvironmentEdge edge = new ManualEnvironmentEdge();
    edge.setValue(12345);
    EnvironmentEdgeManager.injectEdge(edge);
  }

  @AfterClass
  public static void teardown() {
    EnvironmentEdgeManager.reset();
  }

  @Test
  public void testFlushRegionEntryEquality() {
    RegionInfo hri = RegionInfoBuilder.newBuilder(TableName.valueOf(name.getMethodName()))
        .setRegionId(1).setReplicaId(0).build();
    HRegion r = mock(HRegion.class);
    doReturn(hri).when(r).getRegionInfo();

    FlushRegionEntry entry = new FlushRegionEntry(r, null, FlushLifeCycleTracker.DUMMY);
    FlushRegionEntry other = new FlushRegionEntry(r, null, FlushLifeCycleTracker.DUMMY);

    assertEquals(entry.hashCode(), other.hashCode());
    assertEquals(entry, other);
  }
}