[DOMStringMap.html]
  type: testharness
  [setter on DOMStringMap must enqueue an attributeChanged reaction when adding an observed data attribute]
    expected: FAIL

  [setter on DOMStringMap must not enqueue an attributeChanged reaction when adding an unobserved data attribute]
    expected: FAIL

  [setter on DOMStringMap must enqueue an attributeChanged reaction when mutating the value of an observed data attribute]
    expected: FAIL

  [setter on DOMStringMap must enqueue an attributeChanged reaction when mutating the value of an observed data attribute to the same value]
    expected: FAIL

  [setter on DOMStringMap must not enqueue an attributeChanged reaction when mutating the value of an unobserved data attribute]
    expected: FAIL

  [deleter on DOMStringMap must enqueue an attributeChanged reaction when removing an observed data attribute]
    expected: FAIL

  [deleter on DOMStringMap must not enqueue an attributeChanged reaction when removing an unobserved data attribute]
    expected: FAIL

  [deleter on DOMStringMap must not enqueue an attributeChanged reaction when it does not remove a data attribute]
    expected: FAIL

