@BeforeClass
  public static void beforeClass() throws Exception {
    UTIL.startMiniCluster();
    if (!UTIL.getHBaseCluster().waitForActiveAndReadyMaster(30000)) {
      throw new RuntimeException("Active master not ready");
    }
  }
Make sure we can spin up a HBTU without a hbase-site.xml
hbase-testing-util/src/test/java/org/apache/hadoop/hbase/TestHBaseTestingUtilitySpinup.java