| Tests that the parameters are mandatory in CSSKeyframesRule API. | |
| On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". | |
| PASS keyframes.__proto__ is CSSKeyframesRule.prototype | |
| PASS keyframes.appendRule() threw exception TypeError: Not enough arguments. | |
| PASS keyframes.deleteRule() threw exception TypeError: Not enough arguments. | |
| PASS keyframes.findRule() threw exception TypeError: Not enough arguments. | |
| PASS successfullyParsed is true | |
| TEST COMPLETE | |