This test runs the WebGL Test listed below in an iframe and reports PASS or FAIL.

Test: ../../../resources/webgl_test_files/conformance/textures/misc/cube-incomplete-fbo.html
[ 1: PASS ] getError was expected value: NO_ERROR : Should be no errors after attaching cube map face.
[ 2: FAIL ] gl.checkFramebufferStatus(gl.FRAMEBUFFER) should be 36054. Was 36053.
[ 3: PASS ] gl.checkFramebufferStatus(gl.FRAMEBUFFER) is gl.FRAMEBUFFER_COMPLETE
[ 4: PASS ] successfullyParsed is true
[ FAIL ] 1 failures reported