public void testMutatorOperationDecrCloning() {
    int exp = 823862;
    long def = 28775;
    int by = 7735;
    MutatorOperation op = ofact.mutate(Mutator.decr, TEST_KEY, by, def, exp, genericCallback);

    MutatorOperation op2 = cloneOne(MutatorOperation.class, op);
    assertKey(op2);
    assertEquals(exp, op2.getExpiration());
    assertEquals(def, op2.getDefault());
    assertEquals(by, op2.getBy());
    assertSame(Mutator.decr, op2.getType());
    assertCallback(op2);
  }