| <!DOCTYPE html> |
| <!-- DO NOT EDIT! This test has been generated by tools/gentest.py. --> |
| <title>Canvas test: 2d.composite.globalAlpha.invalid</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/2dcontext/resources/canvas-tests.js"></script> |
| <link rel="stylesheet" href="/2dcontext/resources/canvas-tests.css"> |
| <body class="show_output"> |
| |
| <h1>2d.composite.globalAlpha.invalid</h1> |
| <p class="desc"></p> |
| |
| |
| <p class="output">Actual output:</p> |
| <canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas> |
| |
| <ul id="d"></ul> |
| <script> |
| var t = async_test(""); |
| _addTest(function(canvas, ctx) { |
| |
| ctx.globalAlpha = 0.5; |
| var a = ctx.globalAlpha; // might not be exactly 0.5, if it is rounded/quantised, so remember for future comparisons |
| ctx.globalAlpha = Infinity; |
| _assertSame(ctx.globalAlpha, a, "ctx.globalAlpha", "a"); |
| ctx.globalAlpha = -Infinity; |
| _assertSame(ctx.globalAlpha, a, "ctx.globalAlpha", "a"); |
| ctx.globalAlpha = NaN; |
| _assertSame(ctx.globalAlpha, a, "ctx.globalAlpha", "a"); |
| |
| |
| }); |
| </script> |
| |
