1 files changed, 74 insertions, 0 deletions
diff --git a/dom/media/webrtc/tests/mochitests/test_peerConnection_replaceVideoThenRenegotiate.html b/dom/media/webrtc/tests/mochitests/test_peerConnection_replaceVideoThenRenegotiate.html
new file mode 100644
index 0000000000..070cb42fcb
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+++ b/dom/media/webrtc/tests/mochitests/test_peerConnection_replaceVideoThenRenegotiate.html
@@ -0,0 +1,74 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <script type="application/javascript" src="pc.js"></script>
+  <script type="application/javascript" src="/tests/dom/canvas/test/captureStream_common.js"></script>
+</head>
+<body>
+<pre id="test">
+<script type="application/javascript">
+  createHTML({
+    bug: "1017888",
+    title: "Renegotiation: replaceTrack followed by adding a second video stream"
+  });
+
+  runNetworkTest(async (options) => {
+    await pushPrefs(['media.peerconnection.video.min_bitrate_estimate', 180*1000]);
+    // [TODO] re-enable HW decoder after bug 1526207 is fixed.
+    if (navigator.userAgent.includes("Android")) {
+      await pushPrefs(["media.navigator.mediadatadecoder_vpx_enabled", false],
+                      ["media.webrtc.hw.h264.enabled", false]);
+    }
+
+    const test = new PeerConnectionTest(options);
+    test.setMediaConstraints([{video:true}], [{video:true}]);
+    const helper = new VideoStreamHelper();
+    const emitter1 = new VideoFrameEmitter(CaptureStreamTestHelper.prototype.red,
+                                           CaptureStreamTestHelper.prototype.green);
+    const emitter2 = new VideoFrameEmitter(CaptureStreamTestHelper.prototype.blue,
+                                           CaptureStreamTestHelper.prototype.grey);
+    test.chain.replace("PC_LOCAL_GUM", [
+      function PC_LOCAL_ADDTRACK(test) {
+        test.pcLocal.attachLocalStream(emitter1.stream());
+        emitter1.start();
+      },
+    ]);
+    addRenegotiation(test.chain,
+      [
+        function PC_LOCAL_REPLACE_VIDEO_TRACK_THEN_ADD_SECOND_STREAM(test) {
+          emitter1.stop();
+          emitter2.start();
+          const newstream = emitter2.stream();
+          const newtrack = newstream.getVideoTracks()[0];
+          var sender = test.pcLocal._pc.getSenders()[0];
+          return test.pcLocal.senderReplaceTrack(sender, newtrack, newstream)
+            .then(() => {
+              test.setMediaConstraints([{video: true}, {video: true}],
+                                       [{video: true}]);
+            });
+        },
+      ],
+      [
+        function PC_REMOTE_CHECK_ORIGINAL_TRACK_NOT_ENDED(test) {
+          is(test.pcRemote._pc.getTransceivers().length, 1,
+              "pcRemote should have one transceiver");
+          const track = test.pcRemote._pc.getTransceivers()[0].receiver.track;
+
+          const vremote = test.pcRemote.remoteMediaElements.find(
+              elem => elem.id.includes(track.id));
+          if (!vremote) {
+            return Promise.reject(new Error("Couldn't find video element"));
+          }
+          ok(!vremote.ended, "Original track should not have ended after renegotiation (replaceTrack is not signalled!)");
+          return helper.checkVideoPlaying(vremote);
+        }
+      ]
+    );
+
+    await test.run();
+  });
+
+</script>
+</pre>
+</body>
+</html>