assertFalse(c.tableOperations().listConstraints(t1).containsKey(constraintClassName));

    c.namespaceOperations().addConstraint(namespace, constraintClassName);
<<<<<<< HEAD:test/src/main/java/org/apache/accumulo/test/NamespacesIT.java
    assertTrue(c.namespaceOperations().listConstraints(namespace).containsKey(constraintClassName));
    assertTrue(c.tableOperations().listConstraints(t1).containsKey(constraintClassName));
    int num = c.namespaceOperations().listConstraints(namespace).get(constraintClassName);
    assertEquals(num, (int) c.tableOperations().listConstraints(t1).get(constraintClassName));
    // doesn't take effect immediately, needs time to propagate to tserver's ZooKeeper cache
    sleepUninterruptibly(250, TimeUnit.MILLISECONDS);
=======
    boolean passed = false;
    for (int i = 0; i < 5; i++) {
      if (!c.namespaceOperations().listConstraints(namespace).containsKey(constraintClassName)) {
        Thread.sleep(500);
        continue;
      }
      if (!c.tableOperations().listConstraints(t1).containsKey(constraintClassName)) {
        Thread.sleep(500);
        continue;
      }
      passed = true;
      break;
    }
    assertTrue("Failed to observe newly-added constraint", passed);

    passed = false;
    Integer namespaceNum = null;
    for (int i = 0; i < 5; i++) {
      namespaceNum = c.namespaceOperations().listConstraints(namespace).get(constraintClassName);
      if (null == namespaceNum) {
        Thread.sleep(500);
        continue;
      }
      Integer tableNum = c.tableOperations().listConstraints(t1).get(constraintClassName);
      if (null == tableNum) {
        Thread.sleep(500);
        continue;
      }
      assertEquals(namespaceNum, tableNum);
      passed = true;
    }
    assertTrue("Failed to observe constraint in both table and namespace", passed);
>>>>>>> a4bc71b4d6d12a4c7a8f1c6f70e83a1d5dc70e44:test/src/test/java/org/apache/accumulo/test/NamespacesIT.java

    Mutation m1 = new Mutation("r1");
    Mutation m2 = new Mutation("r2");

    assertFalse(c.tableOperations().listConstraints(t1).containsKey(constraintClassName));

    c.namespaceOperations().addConstraint(namespace, constraintClassName);
    boolean passed = false;
    for (int i = 0; i < 5; i++) {
      if (!c.namespaceOperations().listConstraints(namespace).containsKey(constraintClassName)) {
        Thread.sleep(500);
        continue;
      }
      if (!c.tableOperations().listConstraints(t1).containsKey(constraintClassName)) {
        Thread.sleep(500);
        continue;
      }
      passed = true;
      break;
    }
    assertTrue("Failed to observe newly-added constraint", passed);

    passed = false;
    Integer namespaceNum = null;
    for (int i = 0; i < 5; i++) {
      namespaceNum = c.namespaceOperations().listConstraints(namespace).get(constraintClassName);
      if (null == namespaceNum) {
        Thread.sleep(500);
        continue;
      }
      Integer tableNum = c.tableOperations().listConstraints(t1).get(constraintClassName);
      if (null == tableNum) {
        Thread.sleep(500);
        continue;
      }
      assertEquals(namespaceNum, tableNum);
      passed = true;
    }
    assertTrue("Failed to observe constraint in both table and namespace", passed);

    Mutation m1 = new Mutation("r1");
    Mutation m2 = new Mutation("r2");