@BeforeClass
  public static void setUpBeforeClass() throws Exception {
    CONF1.setClass(HConstants.MASTER_IMPL, HMasterForTest.class, HMaster.class);
    TestReplicationBase.setUpBeforeClass();
    createTable(tableName3);
    table3 = connection1.getTable(tableName3);
    table4 = connection2.getTable(tableName3);
  }
In HBASE-26029, we reimplement the claim queue operation with proc-v2 and make it a step in SCP,
this is a UT to make sure the {@link AssignReplicationQueuesProcedure} works correctly.
hbase-server/src/test/java/org/apache/hadoop/hbase/replication/TestClaimReplicationQueue.java