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<!doctype html>
<title>getUserMedia({doesnotexist:true}) rejects with TypeError</title>
<link rel="author" title="Dominique Hazael-Massieux" href=""/>
<h1 class="instructions">Description</h1>
<p class="instructions">This test checks that getUserMedia with an unknown value
in the constraints parameter rejects with a TypeError.</p>
<div id='log'></div>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script src=/resources/testdriver.js></script>
<script src=/resources/testdriver-vendor.js></script>
<script src=permission-helper.js></script>
promise_test(async () => {
try {
await navigator.mediaDevices.getUserMedia({doesnotexist:true})
assert_unreached("This should never be triggered since the constraints parameter only contains an unrecognized constraint");
} catch (error) {
assert_equals(, "TypeError", "TypeError returned as expected");
assert_equals(error.constraintName, undefined, "constraintName attribute not set as expected");
}, "Tests that getUserMedia is rejected with a TypeError when used with an unknown constraint");