| <!doctype html> |
| <html> |
| <head> |
| <title>enumerateDevices: test that enumerateDevices is present</title> |
| <link rel="author" title="Dr Alex Gouaillard" href="mailto:agouaillard@gmail.com"/> |
| <link rel="help" href="https://w3c.github.io/mediacapture-main/#enumerating-devices"> |
| <meta name='assert' content='Check that the enumerateDevices() method is present.'/> |
| </head> |
| <body> |
| <h1 class="instructions">Description</h1> |
| <p class="instructions">This test checks for the presence of the |
| <code>navigator.mediaDevices.enumerateDevices()</code> method.</p> |
| <div id='log'></div> |
| <script src=/resources/testharness.js></script> |
| <script src=/resources/testharnessreport.js></script> |
| <script> |
| "use strict"; |
| |
| //NOTE ALEX: for completion, a test for ondevicechange event is missing. |
| |
| promise_test(async () => { |
| assert_not_equals(navigator.mediaDevices.enumerateDevices, undefined, "navigator.mediaDevices.enumerateDevices exists"); |
| const deviceList = await navigator.mediaDevices.enumerateDevices(); |
| for (const mediaInfo of deviceList) { |
| assert_not_equals(mediaInfo.kind, undefined, "mediaInfo's kind should exist."); |
| assert_equals(mediaInfo.deviceId, "", "mediaInfo's deviceId should exist and be empty if getUserMedia was never called successfully."); |
| assert_equals(mediaInfo.label, "", "mediaInfo's label should exist and be empty if getUserMedia was never called successfully."); |
| assert_equals(mediaInfo.groupId, "", "mediaInfo's groupId should exist and be empty if getUserMedia was never called successfully."); |
| assert_in_array(mediaInfo.kind, ["videoinput", "audioinput", "audiooutput"]); |
| } |
| assert_less_than_equal(deviceList.filter((item) => { return item.kind == "audioinput"; }).length, 1, "there should be zero or one audio input device "); |
| assert_less_than_equal(deviceList.filter((item) => { return item.kind == "videoinput"; }).length, 1, "there should be zero or one video input device "); |
| |
| }, "mediaDevices.enumerateDevices() is present and working - before capture"); |
| |
| promise_test(async () => { |
| await navigator.mediaDevices.getUserMedia({ audio : true }); |
| const deviceList = await navigator.mediaDevices.enumerateDevices(); |
| for (const mediaInfo of deviceList) { |
| assert_not_equals(mediaInfo.kind, undefined, "mediaInfo's kind should exist."); |
| assert_not_equals(mediaInfo.deviceId, "", "mediaInfo's deviceId should exist and not be empty."); |
| assert_in_array(mediaInfo.kind, ["videoinput", "audioinput", "audiooutput"]); |
| } |
| }, "mediaDevices.enumerateDevices() is present and working - after capture"); |
| |
| promise_test(async () => { |
| const deviceList = await navigator.mediaDevices.enumerateDevices(); |
| for (const mediaInfo of deviceList) { |
| if (mediaInfo.kind == "audioinput" || mediaInfo.kind == "videoinput") { |
| assert_true(mediaInfo instanceof InputDeviceInfo); |
| } else if ( mediaInfo.kind == "audiooutput" ) { |
| assert_true(mediaInfo instanceof MediaDeviceInfo); |
| } else { |
| assert_unreached("mediaInfo.kind should be one of 'audioinput', 'videoinput', or 'audiooutput'.") |
| } |
| } |
| }, "InputDeviceInfo is supported"); |
| </script> |
| </body> |
| </html> |
