TableName createTableWithRegions(Admin admin, int numRegions) throws Exception {
    return createTableWithRegions(admin, NamespaceDescriptor.DEFAULT_NAMESPACE_NAME_STR, numRegions,
      0);
  }
Waits {@code timeout} milliseconds for the HBase quota table to exist.
hbase-server/src/test/java/org/apache/hadoop/hbase/quotas/SpaceQuotaHelperForTests.java