[rendering-sampling-feedback-loop.html]
  [WebGL test #2: getError expected: INVALID_OPERATION. Was NO_ERROR : Rendering to a texture where it samples from should geneates INVALID_OPERATION. Otherwise, it should be NO_ERROR]
    expected: FAIL

  [WebGL test #3: getError expected: INVALID_OPERATION. Was NO_ERROR : Rendering to a texture where it samples from should geneates INVALID_OPERATION. Otherwise, it should be NO_ERROR]
    expected: FAIL