[timing-functions-syntax-valid.html]
  expected:
    if (os == "android") and fission: [OK, TIMEOUT]
  [e.style['animation-timing-function'\] = "steps(calc(2 + sign(100em - 1px)))" should set the property value]
    expected: FAIL

  [e.style['animation-timing-function'\] = "cubic-bezier(calc(-2), calc(0.7 / 2), calc(1.5), calc(0))" should set the property value]
    expected: FAIL

  [e.style['animation-timing-function'\] = "steps(calc(-10), start)" should set the property value]
    expected: FAIL

  [e.style['animation-timing-function'\] = "steps(calc(5 / 2), start)" should set the property value]
    expected: FAIL

  [e.style['animation-timing-function'\] = "steps(calc(1), jump-none)" should set the property value]
    expected: FAIL