| Test that CanvasAgent.requestContent can retrieve a dataURL with the current content of the 2D canvas. | |
| == Running test suite: Canvas.requestContent2D | |
| -- Running test case: Canvas.requestContent2D.validCanvasId | |
| PASS: Content should not be empty. | |
| -- Running test case: Canvas.requestContent.invalidCanvasId | |
| PASS: Should produce an error. | |
| Error: No canvas for given identifier. | |