[Animation.html]
  [Animation.animate must enqueue an attributeChanged reaction when it adds the observed style attribute]
    expected:
      if not debug and (os == "linux"): [PASS, FAIL]
      if not debug and (os == "mac"): [PASS, FAIL]
      if not debug and (os == "android"): [PASS, FAIL]

  [Animation.animate must enqueue an attributeChanged reaction when it mutates the observed style attribute]
    expected:
      if not debug and (os == "android"): [PASS, FAIL]
      if not debug and (os == "mac"): [PASS, FAIL]
      if not debug and (os == "linux"): [PASS, FAIL]