2d.layer.malformed-operations-with-promises.worker.js

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This test has a WPT meta file that expects 2 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /html/canvas/offscreen/layers/2d.layer.malformed-operations-with-promises.worker.html - WPT Dashboard Interop Dashboard

// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.

// OffscreenCanvas test in a worker:2d.layer.malformed-operations-with-promises

// Description:

// Note:

importScripts("/resources/testharness.js");

importScripts("/html/canvas/resources/canvas-tests.js");

promise_test(async t => {

  const canvas = new OffscreenCanvas(200, 200);

  const ctx = canvas.getContext('2d');

  // Shouldn't throw on its own.

  await canvas.convertToBlob();

  // Make sure the exception isn't caused by calling the function twice.

  await canvas.convertToBlob();

  // Calling again inside a layer should throw.

  ctx.beginLayer();

  await promise_rejects_dom(t, 'InvalidStateError',

                            canvas.convertToBlob());

}, "Throws if convertToBlob is called while layers are open.");

promise_test(async t => {

  const canvas = new OffscreenCanvas(200, 200);

  const 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));

}, "Throws if createImageBitmap is called while layers are open.");

done();