blob: 085554d9f5bfdb4171cda6a9bfef83731a83dac3 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
<!DOCTYPE html>
<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
<title>OffscreenCanvas test: 2d.layer.malformed-operations-with-promises.createImageBitmap</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-with-promises.createImageBitmap</h1>
<p class="desc">Check that exceptions are thrown for operations that are malformed while layers are open.</p>
<script>
promise_test(async t => {
var canvas = new OffscreenCanvas(200, 200);
var ctx = canvas.getContext('2d');
// Shouldn't throw on its own.
await createImageBitmap(canvas);
// Make sure the exception isn't caused by calling the function twice.
await createImageBitmap(canvas);
// Calling again inside a layer should throw.
ctx.beginLayer();
await promise_rejects_dom(t, 'InvalidStateError', createImageBitmap(canvas));
}, "Check that exceptions are thrown for operations that are malformed while layers are open.");
</script>
|