TableName writeUntilViolationAndVerifyViolationInNamespace(String ns,
    SpaceViolationPolicy policyToViolate, Mutation m) throws Exception {
    final TableName tn = writeUntilViolationInNamespace(ns, policyToViolate);
    verifyViolation(policyToViolate, tn, m);
    return tn;
  }
Writes the given mutation into a table until it violates the given policy. Returns the name of
the table created & written into.
hbase-server/src/test/java/org/apache/hadoop/hbase/quotas/SpaceQuotaHelperForTests.java