| <!DOCTYPE html> |
| <meta charset=utf-8> |
| <title>Ensure expando properties are preserved on the WebGPU context.</title> |
| <body> |
| <canvas id="canvas" style="width: 50px; height: 50px;"> </canvas> |
| <script src="../resources/testharness.js"></script> |
| <script src="../resources/testharnessreport.js"></script> |
| <script> |
| |
| function initialize() { |
| let canvas = document.getElementById("canvas"); |
| let ctx = canvas.getContext("gpu"); |
| ctx.myProperty = 2; |
| } |
| |
| function collectGarbage() { |
| if (window.GCController) |
| window.GCController.collect(); |
| else if (window.gc) |
| gc(); |
| else if (window.$vm) |
| window.$vm.gc(); |
| // $vm is exposed in WebKit's MiniBrowser with the following environment variables set: |
| // export JSC_useDollarVM=1 |
| // export __XPC_JSC_useDollarVM=1 |
| } |
| |
| // FIXME: HTMLCanvasElement.getContext("gpu") no longer exists in the |
| // WebGPU spec. When WebKit is updated to track the current spec, this |
| // test and the bindings should be updated to honor the spec's |
| // guarantees about preserving expando properties on various |
| // interfaces. |
| let test1 = async_test('Verify expando properties are preserved on the WebGPU context'); |
| test1.step(function() { |
| initialize(); |
| setTimeout(test1.step_func(function() { |
| collectGarbage(); |
| let canvas = document.getElementById("canvas"); |
| let ctx = canvas.getContext("gpu"); |
| assert_equals(ctx.myProperty, 2); |
| test1.done(); |
| }), 200); |
| }); |
| </script> |
| </body> |
