| <!DOCTYPE html> |
| <title>Canvas test: type.prototype</title> |
| <meta name="author" content="Philip Taylor"> |
| <script src="../common/canvas-tests.js"></script> |
| <link rel="stylesheet" href="../common/canvas-tests.css"> |
| <body class="show_output"> |
| |
| <h1><a href="index.type.html">type</a>.prototype</h1> |
| <p class="desc">window.HTMLCanvasElement has prototype, which is { ReadOnly, DontDelete }. prototype has getContext, which is not</p> |
| |
| <div class="refs">Spec references: |
| <ul> |
| <li><a href="../annotated-spec/canvas.html#testrefs.canvas.type">canvas.type</a> |
| </ul> |
| </div> |
| <p class="notes">Defined in "Web IDL" (draft) |
| <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> |
| _addTest(function(canvas, ctx) { |
| |
| _assert(window.HTMLCanvasElement.prototype, "window.HTMLCanvasElement.prototype"); |
| _assert(window.HTMLCanvasElement.prototype.getContext, "window.HTMLCanvasElement.prototype.getContext"); |
| window.HTMLCanvasElement.prototype = null; |
| _assert(window.HTMLCanvasElement.prototype, "window.HTMLCanvasElement.prototype"); |
| delete window.HTMLCanvasElement.prototype; |
| _assert(window.HTMLCanvasElement.prototype, "window.HTMLCanvasElement.prototype"); |
| window.HTMLCanvasElement.prototype.getContext = 1; |
| _assertSame(window.HTMLCanvasElement.prototype.getContext, 1, "window.HTMLCanvasElement.prototype.getContext", "1"); |
| delete window.HTMLCanvasElement.prototype.getContext; |
| _assertSame(window.HTMLCanvasElement.prototype.getContext, undefined, "window.HTMLCanvasElement.prototype.getContext", "undefined"); |
| |
| |
| }); |
| </script> |
| |
