| This test setting various attributes of a CanvasRenderingContext2D to JavaScript null. | |
| TEST SUCCEEDED: The value was the string 'source-over'. [tested CanvasRenderingContext2D.globalCompositeOperation] | |
| TEST SUCCEEDED: The value was the string 'butt'. [tested CanvasRenderingContext2D.lineCap] | |
| TEST SUCCEEDED: The value was the string 'miter'. [tested CanvasRenderingContext2D.lineJoin] | |
| TEST SUCCEEDED: The value was the string 'rgba(0, 0, 0, 0)'. [tested CanvasRenderingContext2D.shadowColor] | |