| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <body> |
| <script> |
| |
| 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; |
| } |
| |
| test(function(t) { |
| assert_array_equals(trySettingLineDash([1, -1]), initialLineDash); |
| assert_array_equals(trySettingLineDash([1, Infinity]), initialLineDash); |
| assert_array_equals(trySettingLineDash([1, -Infinity]), initialLineDash); |
| assert_array_equals(trySettingLineDash([1, NaN]), initialLineDash); |
| assert_array_equals(trySettingLineDash([1, 'string']), initialLineDash); |
| assert_throws_js(TypeError, function() { |
| trySettingLineDashWithNoArgs(); |
| }); |
| |
| assert_equals(trySettingLineDashOffset(Infinity), initialLineDashOffset); |
| assert_equals(trySettingLineDashOffset(-Infinity), initialLineDashOffset); |
| assert_equals(trySettingLineDashOffset(NaN), initialLineDashOffset); |
| assert_equals(trySettingLineDashOffset('string'), initialLineDashOffset); |
| }, "Test for invalid input of setLineDash, getLineDash and lineDashOffset"); |
| </script> |
| </body> |
