| <!DOCTYPE html> |
| |
| <html class="a"> |
| <head> |
| <title>MediaStreamAudioSourceNode</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| </head> |
| <body class="a"> |
| <div id="log"></div> |
| <script> |
| setup({explicit_done: true}); |
| // Wait until the DOM is ready to be able to get a reference to the canvas |
| // element. |
| window.addEventListener("load", function() { |
| const ac = new AudioContext(); |
| const emptyStream = new MediaStream(); |
| |
| test(function() { |
| assert_throws_dom( |
| "InvalidStateError", |
| function() { |
| ac.createMediaStreamSource(emptyStream); |
| }, |
| `A MediaStreamAudioSourceNode can only be constructed via the factory |
| method with a MediaStream that has at least one track of kind "audio"` |
| ); |
| }, "MediaStreamAudioSourceNode created with factory method and MediaStream with no tracks"); |
| |
| test(function() { |
| assert_throws_dom( |
| "InvalidStateError", |
| function() { |
| new MediaStreamAudioSourceNode(ac, { mediaStream: emptyStream }); |
| }, |
| `A MediaStreamAudioSourceNode can only be constructed via the constructor |
| with a MediaStream that has at least one track of kind "audio"` |
| ); |
| }, "MediaStreamAudioSourceNode created with constructor and MediaStream with no tracks"); |
| |
| const canvas = document.querySelector("canvas"); |
| const ctx = canvas.getContext("2d"); |
| const videoOnlyStream = canvas.captureStream(); |
| |
| test(function() { |
| assert_throws_dom( |
| "InvalidStateError", |
| function() { |
| ac.createMediaStreamSource(videoOnlyStream); |
| }, |
| `A MediaStreamAudioSourceNode can only be constructed via the factory with a |
| MediaStream that has at least one track of kind "audio"` |
| ); |
| }, `MediaStreamAudioSourceNode created with the factory method and MediaStream with only a video track`); |
| |
| test(function() { |
| assert_throws_dom( |
| "InvalidStateError", |
| function() { |
| new MediaStreamAudioSourceNode(ac, { |
| mediaStream: videoOnlyStream, |
| }); |
| }, |
| `A MediaStreamAudioSourceNode can only be constructed via the factory with a |
| MediaStream that has at least one track of kind "audio"` |
| ); |
| }, `MediaStreamAudioSourceNode created with constructor and MediaStream with only a video track`); |
| done(); |
| }); |
| </script> |
| </body> |
| <canvas></canvas> |
| </html> |
