| <!doctype html> |
| <html> |
| <head> |
| <title>getUserMedia({}) rejects with TypeError</title> |
| <link rel="author" title="Dominique Hazael-Massieux" href="mailto:[email protected]"/> |
| <link rel="help" href="https://w3c.github.io/mediacapture-main/#dom-mediadevices-getusermedia"> |
| </head> |
| <body> |
| <h1 class="instructions">Description</h1> |
| <p class="instructions">This test checks that getUserMedia with no value in the |
| options parameter raises a TypeError exception.</p> |
| |
| <div id='log'></div> |
| <script src=/resources/testharness.js></script> |
| <script src=/resources/testharnessreport.js></script> |
| <script> |
| promise_test(async () => { |
| try { |
| // Race a settled promise to check that the returned promise is already |
| // rejected. |
| await Promise.race([navigator.mediaDevices.getUserMedia({}), |
| Promise.resolve()]); |
| } catch (error) { |
| assert_throws_js(TypeError, () => { throw error }); |
| assert_false('constraintName' in error, |
| "constraintName attribute not set as expected"); |
| return; |
| } |
| assert_unreached("should have returned an already-rejected promise."); |
| }, "Tests that getUserMedia is rejected with a TypeError when used with an empty options parameter"); |
| |
| </script> |
| </body> |
| </html> |
