| <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"> |
| <html> |
| <head> |
| <script src="../../resources/js-test-pre.js"></script> |
| </head> |
| <body> |
| <script> |
| description("Test for invalid input of setLineDash, getLineDash and lineDashOffset"); |
| |
| var canvas = document.createElement('canvas'); |
| document.body.appendChild(canvas); |
| canvas.setAttribute('width', '700'); |
| canvas.setAttribute('height', '700'); |
| var ctx = canvas.getContext('2d'); |
| var initialLineDash = [1.5, 2.5]; |
| var initialLineDashOffset = 1.5; |
| |
| function resetLineDash() { |
| ctx.setLineDash(initialLineDash); |
| ctx.lineDashOffset = initialLineDashOffset; |
| } |
| |
| function trySettingLineDash(value) { |
| resetLineDash(); |
| ctx.setLineDash(value); |
| return ctx.getLineDash(); |
| } |
| |
| function trySettingLineDashWithNoArgs() { |
| resetLineDash(); |
| ctx.setLineDash(); |
| return ctx.getLineDash(); |
| } |
| |
| function trySettingLineDashOffset(value) { |
| resetLineDash(); |
| ctx.lineDashOffset = value; |
| return ctx.lineDashOffset; |
| } |
| |
| shouldBe("trySettingLineDash([1, -1])", "initialLineDash"); |
| shouldBe("trySettingLineDash([1, Infinity])", "initialLineDash"); |
| shouldBe("trySettingLineDash([1, -Infinity])", "initialLineDash"); |
| shouldBe("trySettingLineDash([1, NaN])", "initialLineDash"); |
| shouldBe("trySettingLineDash([1, 'string'])", "initialLineDash"); |
| shouldThrow("trySettingLineDashWithNoArgs()", "'TypeError: Not enough arguments'"); |
| |
| shouldBe("trySettingLineDashOffset(Infinity)", "initialLineDashOffset"); |
| shouldBe("trySettingLineDashOffset(-Infinity)", "initialLineDashOffset"); |
| shouldBe("trySettingLineDashOffset(NaN)", "initialLineDashOffset"); |
| shouldBe("trySettingLineDashOffset('string')", "initialLineDashOffset"); |
| </script> |
| <script src="../../resources/js-test-post.js"></script> |
| </body> |
| </html> |
