[navigation-controls.tentative.html]
  [Should be parseable in JS: '(navigation-controls)']
    expected: FAIL

  [Should be parseable in a CSS stylesheet: '(navigation-controls: back-button)']
    expected: FAIL

  [Check that none evaluates to false in the boolean context]
    expected: FAIL

  [Should be parseable in a CSS stylesheet: '(navigation-controls: none)']
    expected: FAIL

  [Should be parseable in JS: '(navigation-controls: none)']
    expected: FAIL

  [Should be parseable in a CSS stylesheet: '(navigation-controls)']
    expected: FAIL

  [Should be parseable in JS: '(navigation-controls: back-button)']
    expected: FAIL

