confignode/src/test/java/org/apache/iotdb/confignode/manager/partition/RegionGroupCacheTest.java

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 * distributed with this work for additional information
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 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
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 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
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package org.apache.iotdb.confignode.manager.partition;

import org.apache.iotdb.common.rpc.thrift.TConsensusGroupId;
import org.apache.iotdb.common.rpc.thrift.TConsensusGroupType;
import org.apache.iotdb.commons.cluster.RegionStatus;

import org.junit.Assert;
import org.junit.Test;

public class RegionGroupCacheTest {

  @Test
  public void getLeaderDataNodeIdTest() {
    final int leaderId = 1;
    long currentTime = System.currentTimeMillis();
    RegionGroupCache regionGroupCache =
        new RegionGroupCache(new TConsensusGroupId(TConsensusGroupType.DataRegion, 0));
    for (int i = 0; i < 3; i++) {
      regionGroupCache.cacheHeartbeatSample(
          new RegionHeartbeatSample(
              currentTime, currentTime, i, i == leaderId, RegionStatus.Running));
    }
    Assert.assertTrue(regionGroupCache.updateRegionStatistics());
    Assert.assertEquals(leaderId, regionGroupCache.getLeaderDataNodeId());
  }

  @Test
  public void getRegionStatusTest() {
    long currentTime = System.currentTimeMillis();
    RegionGroupCache regionGroupCache =
        new RegionGroupCache(new TConsensusGroupId(TConsensusGroupType.SchemaRegion, 1));
    regionGroupCache.cacheHeartbeatSample(
        new RegionHeartbeatSample(currentTime, currentTime, 0, false, RegionStatus.Running));
    regionGroupCache.cacheHeartbeatSample(
        new RegionHeartbeatSample(currentTime, currentTime, 1, false, RegionStatus.Unknown));
    regionGroupCache.cacheHeartbeatSample(
        new RegionHeartbeatSample(currentTime, currentTime, 2, false, RegionStatus.Removing));
    regionGroupCache.cacheHeartbeatSample(
        new RegionHeartbeatSample(currentTime, currentTime, 3, false, RegionStatus.ReadOnly));
    regionGroupCache.updateRegionStatistics();

    Assert.assertEquals(RegionStatus.Running, regionGroupCache.getRegionStatus(0));
    Assert.assertEquals(RegionStatus.Unknown, regionGroupCache.getRegionStatus(1));
    Assert.assertEquals(RegionStatus.Removing, regionGroupCache.getRegionStatus(2));
    Assert.assertEquals(RegionStatus.ReadOnly, regionGroupCache.getRegionStatus(3));
  }

  @Test
  public void getRegionGroupStatusTest() {
    long currentTime = System.currentTimeMillis();
    RegionGroupCache runningRegionGroup =
        new RegionGroupCache(new TConsensusGroupId(TConsensusGroupType.DataRegion, 0));
    runningRegionGroup.cacheHeartbeatSample(
        new RegionHeartbeatSample(currentTime, currentTime, 0, false, RegionStatus.Running));
    runningRegionGroup.cacheHeartbeatSample(
        new RegionHeartbeatSample(currentTime, currentTime, 1, false, RegionStatus.Running));
    runningRegionGroup.cacheHeartbeatSample(
        new RegionHeartbeatSample(currentTime, currentTime, 2, false, RegionStatus.Running));
    runningRegionGroup.updateRegionStatistics();
    Assert.assertEquals(RegionGroupStatus.Running, runningRegionGroup.getRegionGroupStatus());

    RegionGroupCache availableRegionGroup =
        new RegionGroupCache(new TConsensusGroupId(TConsensusGroupType.DataRegion, 1));
    availableRegionGroup.cacheHeartbeatSample(
        new RegionHeartbeatSample(currentTime, currentTime, 0, false, RegionStatus.Running));
    availableRegionGroup.cacheHeartbeatSample(
        new RegionHeartbeatSample(currentTime, currentTime, 1, false, RegionStatus.Unknown));
    availableRegionGroup.cacheHeartbeatSample(
        new RegionHeartbeatSample(currentTime, currentTime, 2, false, RegionStatus.Running));
    availableRegionGroup.updateRegionStatistics();
    Assert.assertEquals(RegionGroupStatus.Available, availableRegionGroup.getRegionGroupStatus());

    RegionGroupCache disabledRegionGroup0 =
        new RegionGroupCache(new TConsensusGroupId(TConsensusGroupType.SchemaRegion, 2));
    disabledRegionGroup0.cacheHeartbeatSample(
        new RegionHeartbeatSample(currentTime, currentTime, 0, false, RegionStatus.Running));
    disabledRegionGroup0.cacheHeartbeatSample(
        new RegionHeartbeatSample(currentTime, currentTime, 1, false, RegionStatus.ReadOnly));
    disabledRegionGroup0.cacheHeartbeatSample(
        new RegionHeartbeatSample(currentTime, currentTime, 2, false, RegionStatus.Running));
    disabledRegionGroup0.updateRegionStatistics();
    Assert.assertEquals(RegionGroupStatus.Disabled, disabledRegionGroup0.getRegionGroupStatus());

    RegionGroupCache disabledRegionGroup1 =
        new RegionGroupCache(new TConsensusGroupId(TConsensusGroupType.SchemaRegion, 3));
    disabledRegionGroup1.cacheHeartbeatSample(
        new RegionHeartbeatSample(currentTime, currentTime, 0, false, RegionStatus.Running));
    disabledRegionGroup1.cacheHeartbeatSample(
        new RegionHeartbeatSample(currentTime, currentTime, 1, false, RegionStatus.Unknown));
    disabledRegionGroup1.cacheHeartbeatSample(
        new RegionHeartbeatSample(currentTime, currentTime, 2, false, RegionStatus.Unknown));
    disabledRegionGroup1.updateRegionStatistics();
    Assert.assertEquals(RegionGroupStatus.Disabled, disabledRegionGroup1.getRegionGroupStatus());

    RegionGroupCache disabledRegionGroup2 =
        new RegionGroupCache(new TConsensusGroupId(TConsensusGroupType.DataRegion, 4));
    disabledRegionGroup2.cacheHeartbeatSample(
        new RegionHeartbeatSample(currentTime, currentTime, 0, false, RegionStatus.Running));
    disabledRegionGroup2.cacheHeartbeatSample(
        new RegionHeartbeatSample(currentTime, currentTime, 1, false, RegionStatus.Running));
    disabledRegionGroup2.cacheHeartbeatSample(
        new RegionHeartbeatSample(currentTime, currentTime, 2, false, RegionStatus.Removing));
    disabledRegionGroup2.updateRegionStatistics();
    Assert.assertEquals(RegionGroupStatus.Disabled, disabledRegionGroup2.getRegionGroupStatus());
  }
}