[line-height-step-parsing-001.html]
  [initial value should be '0px']
    expected: FAIL

  ['line-height-step: 20px' should compute to '20px']
    expected: FAIL

  [line-height-step should inherit]
    expected: FAIL

  ['line-height-step: initial' should compute to '0px']
    expected: FAIL

  ['line-height-step: 40px' should compute to '40px']
    expected: FAIL

  ['0' should be a valid length]
    expected: FAIL

  [Interger should be invalid]
    expected: FAIL

  [Negative length should be invalid]
    expected: FAIL

  [Computed value should be the absolute length]
    expected: FAIL

