@Override
  protected int queueType() {
    return HARegionQueue.BLOCKING_HA_QUEUE;
  }
Test runs all tests of HARegionQueueJUnitTest using BlockingHARegionQueue instead of
HARegionQueue.
geode-core/src/integrationTest/java/org/apache/geode/internal/cache/ha/BlockingHARegionQueueJUnitTest.java