TableName writeUntilViolationAndVerifyViolation(SpaceViolationPolicy policyToViolate, Mutation m)
    throws Exception {
    final TableName tn = writeUntilViolation(policyToViolate);
    verifyViolation(policyToViolate, tn, m);
    return tn;
  }
Writes the given mutation into a table until it violates the given policy. Verifies that the
policy has been violated & then returns the name of the table created & written into.
hbase-server/src/test/java/org/apache/hadoop/hbase/quotas/SpaceQuotaHelperForTests.java