| <!doctype html> |
| <title>MediaRecorder constructor</title> |
| <link rel="help" href="https://w3c.github.io/mediacapture-record/MediaRecorder.html#mediarecorder"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script> |
| test(function() { |
| assert_equals(MediaRecorder.length, 1); |
| assert_throws(new TypeError, function() { |
| new MediaRecorder(); |
| }); |
| assert_throws(new TypeError, function() { |
| new MediaRecorder(null); |
| }); |
| assert_throws(new TypeError, function() { |
| new MediaRecorder(undefined); |
| }); |
| }, "The MediaStream argument is required"); |
| |
| test(function() { |
| var context = new AudioContext(); |
| var dest = context.createMediaStreamDestination(); |
| var recorder = new MediaRecorder(dest.stream); |
| assert_equals(recorder.state, "inactive"); |
| }, "The MediaStream instance's state attribute is set."); |
| </script> |
