diff options
Diffstat (limited to 'testing/web-platform/tests/html/canvas/offscreen/layers/2d.layer.malformed-operations.drawImage.html')
-rw-r--r-- | testing/web-platform/tests/html/canvas/offscreen/layers/2d.layer.malformed-operations.drawImage.html | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/canvas/offscreen/layers/2d.layer.malformed-operations.drawImage.html b/testing/web-platform/tests/html/canvas/offscreen/layers/2d.layer.malformed-operations.drawImage.html new file mode 100644 index 0000000000..e6a9872100 --- /dev/null +++ b/testing/web-platform/tests/html/canvas/offscreen/layers/2d.layer.malformed-operations.drawImage.html @@ -0,0 +1,36 @@ +<!DOCTYPE html> +<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. --> +<title>OffscreenCanvas test: 2d.layer.malformed-operations.drawImage</title> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="/html/canvas/resources/canvas-tests.js"></script> + +<h1>2d.layer.malformed-operations.drawImage</h1> +<p class="desc">Check that exceptions are thrown for operations that are malformed while layers are open.</p> + + +<script> +var t = async_test("Check that exceptions are thrown for operations that are malformed while layers are open."); +var t_pass = t.done.bind(t); +var t_fail = t.step_func(function(reason) { + throw reason; +}); +t.step(function() { + + var canvas = new OffscreenCanvas(200, 200); + var ctx = canvas.getContext('2d'); + + const canvas2 = new OffscreenCanvas(200, 200); + const ctx2 = canvas2.getContext('2d'); + // Shouldn't throw on its own. + ctx2.drawImage(canvas, 0, 0); + // Make sure the exception isn't caused by calling the function twice. + ctx2.drawImage(canvas, 0, 0); + // Calling again inside a layer should throw. + ctx.beginLayer(); + assert_throws_dom("InvalidStateError", + () => ctx2.drawImage(canvas, 0, 0)); + t.done(); + +}); +</script> |