Test handover - reconnect a PeerConnection to another remote
This functionality is being used, but wasn't tested.
This is a skeleton test - just checks that the negotiation
steps succeed.
Bug: none
Change-Id: Ic1b6fa2df77730d42b44f122ed5b29f147505077
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2537630
Reviewed-by: Henrik Boström <hbos@chromium.org>
Commit-Queue: Harald Alvestrand <hta@chromium.org>
Cr-Commit-Position: refs/heads/master@{#827225}
diff --git a/webrtc/protocol/handover.html b/webrtc/protocol/handover.html
new file mode 100644
index 0000000..378d65f
--- /dev/null
+++ b/webrtc/protocol/handover.html
@@ -0,0 +1,74 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>RTCPeerConnection Handovers</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="../RTCPeerConnection-helper.js"></script>
+<script>
+'use strict';
+
+promise_test(async t => {
+ const offerPc = new RTCPeerConnection();
+ const answerPcFirst = new RTCPeerConnection();
+ const answerPcSecond = new RTCPeerConnection();
+ t.add_cleanup(() => {
+ offerPc.close();
+ answerPcFirst.close();
+ answerPcSecond.close();
+ });
+ offerPc.addTransceiver('audio');
+ // Negotiate connection with PC 1
+ const offer1 = await offerPc.createOffer();
+ await offerPc.setLocalDescription(offer1);
+ await answerPcFirst.setRemoteDescription(offer1);
+ const answer1 = await answerPcFirst.createAnswer();
+ await offerPc.setRemoteDescription(answer1);
+ await answerPcFirst.setLocalDescription(answer1);
+ // Renegotiate with PC 2
+ const offer2 = await offerPc.createOffer();
+ await offerPc.setLocalDescription(offer2);
+ await answerPcSecond.setRemoteDescription(offer2);
+ const answer2 = await answerPcSecond.createAnswer();
+ await offerPc.setRemoteDescription(answer2);
+ await answerPcSecond.setLocalDescription(answer2);
+}, 'Negotiation of handover initiated at caller works');
+
+promise_test(async t => {
+ const offerPc = new RTCPeerConnection();
+ const answerPcFirst = new RTCPeerConnection();
+ const answerPcSecond = new RTCPeerConnection();
+ t.add_cleanup(() => {
+ offerPc.close();
+ answerPcFirst.close();
+ answerPcSecond.close();
+ });
+ offerPc.addTransceiver('audio');
+ // Negotiate connection with PC 1
+ const offer1 = await offerPc.createOffer();
+ await offerPc.setLocalDescription(offer1);
+ await answerPcFirst.setRemoteDescription(offer1);
+ const answer1 = await answerPcFirst.createAnswer();
+ await offerPc.setRemoteDescription(answer1);
+ await answerPcFirst.setLocalDescription(answer1);
+ // Renegotiate with PC 2
+ // The offer from PC 2 needs to be consistent on at least the following:
+ // - Number, type and order of media sections
+ // - MID values
+ // - Payload type values
+ // Do a "fake" offer/answer using the original offer against PC2 to achieve this.
+ await answerPcSecond.setRemoteDescription(offer1);
+ // Discard the output of this round.
+ await answerPcSecond.setLocalDescription(await answerPcSecond.createAnswer());
+
+ // Now we can initiate an offer from the new PC.
+ const offer2 = await answerPcSecond.createOffer();
+ await answerPcSecond.setLocalDescription(offer2);
+ await offerPc.setRemoteDescription(offer2);
+ const answer2 = await offerPc.createAnswer();
+ await answerPcSecond.setRemoteDescription(answer2);
+ await offerPc.setLocalDescription(answer2);
+}, 'Negotiation of handover initiated at callee works');
+
+
+
+</script>
