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Diffstat (limited to 'testing/web-platform/tests/html/canvas/element/layers/2d.layer.exceptions-are-no-op.html')
| -rw-r--r-- | testing/web-platform/tests/html/canvas/element/layers/2d.layer.exceptions-are-no-op.html | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/canvas/element/layers/2d.layer.exceptions-are-no-op.html b/testing/web-platform/tests/html/canvas/element/layers/2d.layer.exceptions-are-no-op.html new file mode 100644 index 0000000000..7ab2080fca --- /dev/null +++ b/testing/web-platform/tests/html/canvas/element/layers/2d.layer.exceptions-are-no-op.html @@ -0,0 +1,31 @@ +<!DOCTYPE html> +<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. --> +<title>Canvas test: 2d.layer.exceptions-are-no-op</title> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="/html/canvas/resources/canvas-tests.js"></script> +<link rel="stylesheet" href="/html/canvas/resources/canvas-tests.css"> +<body class="show_output"> + +<h1>2d.layer.exceptions-are-no-op</h1> +<p class="desc">Checks that the context state is left unchanged if beginLayer throws.</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("Checks that the context state is left unchanged if beginLayer throws."); +_addTest(function(canvas, ctx) { + + // Get `beginLayer` to throw while parsing the filter. + assert_throws_js(TypeError, + () => ctx.beginLayer({filter: {name: 'colorMatrix', + values: 'foo'}})); + // `beginLayer` shouldn't have opened the layer, so `endLayer` should throw. + assert_throws_dom("InvalidStateError", () => ctx.endLayer()); + +}); +</script> + |