1 files changed, 50 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webrtc-encoded-transform/RTCEncodedAudioFrame-clone.https.html b/testing/web-platform/tests/webrtc-encoded-transform/RTCEncodedAudioFrame-clone.https.html
new file mode 100644
index 0000000000..ec99338772
--- /dev/null
+++ b/testing/web-platform/tests/webrtc-encoded-transform/RTCEncodedAudioFrame-clone.https.html
@@ -0,0 +1,50 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>RTCEncodedAudioFrame can be cloned and distributed</title>
+<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='../mediacapture-streams/permission-helper.js'></script>
+<script src="../webrtc/RTCPeerConnection-helper.js"></script>
+<script src="../service-workers/service-worker/resources/test-helpers.sub.js"></script>
+
+<script>
+"use strict";
+promise_test(async t => {
+  const caller1 = new RTCPeerConnection();
+  t.add_cleanup(() => caller1.close());
+  const callee1 = new RTCPeerConnection({encodedInsertableStreams:true});
+  t.add_cleanup(() => callee1.close());
+  await setMediaPermission("granted", ["microphone"]);
+  const inputStream = await navigator.mediaDevices.getUserMedia({audio:true});
+  const inputTrack = inputStream.getAudioTracks()[0];
+  t.add_cleanup(() => inputTrack.stop());
+  caller1.addTrack(inputTrack)
+  exchangeIceCandidates(caller1, callee1);
+
+  const caller2 = new RTCPeerConnection({encodedInsertableStreams:true});
+  t.add_cleanup(() => caller2.close());
+  const sender2 = caller2.addTransceiver("audio").sender;
+  const writer2 = sender2.createEncodedStreams().writable.getWriter();
+  sender2.replaceTrack(new MediaStreamTrackGenerator({ kind: 'audio' }));
+
+  const framesReceivedCorrectly = new Promise((resolve, reject) => {
+    callee1.ontrack = async e => {
+      const receiverStreams = e.receiver.createEncodedStreams();
+      const receiverReader = receiverStreams.readable.getReader();
+      const result = await receiverReader.read();
+      const original = result.value;
+      let clone = original.clone();
+      assert_equals(original.timestamp, clone.timestamp);
+      assert_array_equals(Array.from(original.data), Array.from(clone.data));
+      await writer2.write(clone);
+      resolve();
+    }
+  });
+
+  await exchangeOfferAnswer(caller1, callee1);
+
+  return framesReceivedCorrectly;
+}, "Cloning before sending works");
+</script>