[float-interpolation.html]
  [Web Animations: property <float> from [left\] to [right\] at (-0.3) should be [left\]]
    expected: FAIL

  [Web Animations: property <float> from [left\] to [right\] at (0) should be [left\]]
    expected: FAIL

  [Web Animations: property <float> from [left\] to [right\] at (0.3) should be [left\]]
    expected: FAIL

  [Web Animations: property <float> from [left\] to [right\] at (0.5) should be [right\]]
    expected: FAIL

  [Web Animations: property <float> from [left\] to [right\] at (0.6) should be [right\]]
    expected: FAIL

  [Web Animations: property <float> from [left\] to [right\] at (1) should be [right\]]
    expected: FAIL

  [Web Animations: property <float> from [left\] to [right\] at (1.5) should be [right\]]
    expected: FAIL