| <!DOCTYPE html> |
| <html> |
| <head> |
| <title>Test that the HTMLMediaElement preload 'none' attribute value is ignored for MediaStream used as srcObject and MediaStream object URLs used as src.</title> |
| <link rel="author" title="Matthew Wolenetz" href="mailto:[email protected]"/> |
| <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> |
| </head> |
| <body> |
| <p class="instructions">When prompted, accept to share your audio and video streams.</p> |
| <p class="instructions">This test checks that the HTMLMediaElement preload 'none' attribute value is ignored for MediaStream used as srcObject and MediaStream object URLs used as src.</p> |
| <div id=log></div> |
| |
| <audio preload="none"></audio> |
| <video preload="none"></video> |
| |
| <script> |
| async function testPreloadNone(mediaElement, stream) |
| { |
| let rejectSuspendedPromise, rejectErrorPromise, resolveDataLoadedPromise; |
| const suspended = new Promise((r, rej) => { |
| rejectSuspendedPromise = rej; |
| }); |
| const errored = new Promise((r, rej) => { |
| rejectErrorPromise = rej; |
| }); |
| const loaded = new Promise(resolve => { |
| resolveDataLoadedPromise = resolve; |
| }); |
| |
| // The optional deferred load steps (for preload none) for MediaStream resources should be skipped. |
| mediaElement.addEventListener("suspend", () => { |
| rejectSuspendedPromise("'suspend' should not be fired.") |
| }); |
| mediaElement.addEventListener("error", () => { |
| rejectErrorPromise("'error' should not be fired, code=" + mediaElement.error.code); |
| }); |
| |
| mediaElement.addEventListener("loadeddata", () => { |
| assert_equals(mediaElement.networkState, mediaElement.NETWORK_LOADING); |
| resolveDataLoadedPromise(); |
| }); |
| |
| mediaElement.srcObject = stream; |
| assert_equals(mediaElement.networkState, mediaElement.NETWORK_NO_SOURCE); // Resource selection is active. |
| try { |
| await Promise.race([suspended, errored, loaded]); |
| } catch (msg) { |
| assert_unreached(msg); |
| } |
| 2 } |
| |
| promise_test(async () => |
| { |
| const aud = document.querySelector("audio"); |
| // camera is needed for the next test, asking for both at once |
| await setMediaPermission(); |
| let stream; |
| try { |
| stream = await navigator.mediaDevices.getUserMedia({audio:true}); |
| } catch (e) { |
| assert_unreached("getUserMedia error callback was invoked."); |
| } |
| await testPreloadNone(aud, stream); |
| }, "Test that preload 'none' is ignored for MediaStream object URL used as srcObject for audio"); |
| |
| promise_test(async () => |
| { |
| const vid = document.querySelector("video"); |
| let stream; |
| try { |
| stream = await navigator.mediaDevices.getUserMedia({video:true}); |
| } catch (e) { |
| assert_unreached("getUserMedia error callback was invoked.") |
| } |
| await testPreloadNone(vid, stream); |
| |
| }, "Test that preload 'none' is ignored for MediaStream used as srcObject for video"); |
| </script> |
| </body> |
| </html> |
