third_party/blink/web_tests/external/wpt/webrtc/RTCPeerConnection-setLocalDescription-offer.html - chromium/src - Git at Google

 <!doctype html>
 <meta charset=utf-8>
 <title>RTCPeerConnection.prototype.setLocalDescription</title>
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
 <script src="RTCPeerConnection-helper.js"></script>
 <script>
   'use strict';

   // Test is based on the following editor draft:
   // https://w3c.github.io/webrtc-pc/archives/20170605/webrtc.html

   // The following helper functions are called from RTCPeerConnection-helper.js:
   //   generateDataChannelOffer
   //   assert_session_desc_not_similar
   //   assert_session_desc_similar

   /*
     4.3.2.  Interface Definition
       [Constructor(optional RTCConfiguration configuration)]
       interface RTCPeerConnection : EventTarget {
         Promise<void>                      setRemoteDescription(
             RTCSessionDescriptionInit description);

         readonly attribute RTCSessionDescription? remoteDescription;
         readonly attribute RTCSessionDescription? currentRemoteDescription;
         readonly attribute RTCSessionDescription? pendingRemoteDescription;
         ...
       };

     4.6.2.  RTCSessionDescription Class
       dictionary RTCSessionDescriptionInit {
         required RTCSdpType type;
                  DOMString  sdp = "";
       };

     4.6.1.  RTCSdpType
       enum RTCSdpType {
         "offer",
         "pranswer",
         "answer",
         "rollback"
       };
    */

   /*
     4.3.2.  setLocalDescription
       2.  Let lastOffer be the result returned by the last call to createOffer.
       5.  If description.sdp is null and description.type is offer, set description.sdp
           to lastOffer.

     4.3.1.6.  Set the RTCSessionSessionDescription
       2.2.2.  If description is set as a local description, then run one of the following
               steps:
         - If description is of type "offer", set connection.pendingLocalDescription
           to description and signaling state to have-local-offer.
    */
   promise_test(t => {
     const pc = new RTCPeerConnection();
     t.add_cleanup(() => pc.close());

     const states = [];
     pc.addEventListener('signalingstatechange', () => states.push(pc.signalingState));

     return generateAudioReceiveOnlyOffer(pc)
     .then(offer =>
       pc.setLocalDescription(offer)
       .then(() => {
         assert_equals(pc.signalingState, 'have-local-offer');
         assert_session_desc_similar(pc.localDescription, offer);
         assert_session_desc_similar(pc.pendingLocalDescription, offer);
         assert_equals(pc.currentLocalDescription, null);

         assert_array_equals(states, ['have-local-offer']);
       }));
   }, 'setLocalDescription with valid offer should succeed');

   /*
     4.3.2.  setLocalDescription
       2.  Let lastOffer be the result returned by the last call to createOffer.
       5.  If description.sdp is null and description.type is offer, set description.sdp
           to lastOffer.
    */
   promise_test(t => {
     const pc = new RTCPeerConnection();
     t.add_cleanup(() => pc.close());
     return generateAudioReceiveOnlyOffer(pc)
     .then(offer =>
       pc.setLocalDescription({ type: 'offer' })
       .then(() => {
         assert_equals(pc.signalingState, 'have-local-offer');
         assert_session_desc_similar(pc.localDescription, offer);
         assert_session_desc_similar(pc.pendingLocalDescription, offer);
         assert_equals(pc.currentLocalDescription, null);
       }));
   }, 'setLocalDescription with type offer and null sdp should use lastOffer generated from createOffer');

   /*
     4.3.2.  setLocalDescription
       2.  Let lastOffer be the result returned by the last call to createOffer.
       6.  If description.type is offer and description.sdp does not match lastOffer,
           reject the promise with a newly created InvalidModificationError and abort
           these steps.
    */
   promise_test(t => {
     const pc = new RTCPeerConnection();
     t.add_cleanup(() => pc.close());
     const pc2 = new RTCPeerConnection();

     t.add_cleanup(() => pc2.close());

     return generateDataChannelOffer(pc)
     .then(offer =>
       promise_rejects(t, 'InvalidModificationError',
         pc2.setLocalDescription(offer)));
   }, 'setLocalDescription() with offer not created by own createOffer() should reject with InvalidModificationError');

   promise_test(t => {
     // Create first offer with audio line, then second offer with
     // both audio and video line. Since the second offer is the
     // last offer, setLocalDescription would reject when setting
     // with the first offer
     const pc = new RTCPeerConnection();
     t.add_cleanup(() => pc.close());
     return generateAudioReceiveOnlyOffer(pc)
     .then(offer1 =>
       generateVideoReceiveOnlyOffer(pc)
       .then(offer2 => {
         assert_session_desc_not_similar(offer1, offer2);
         return promise_rejects(t, 'InvalidModificationError',
           pc.setLocalDescription(offer1));
       }));
   }, 'Set created offer other than last offer should reject with InvalidModificationError');

   promise_test(t => {
     const pc = new RTCPeerConnection();
     t.add_cleanup(() => pc.close());

     const states = [];
     pc.addEventListener('signalingstatechange', () => states.push(pc.signalingState));

     return generateAudioReceiveOnlyOffer(pc)
     .then(offer1 =>
       pc.setLocalDescription(offer1)
       .then(() =>
         generateVideoReceiveOnlyOffer(pc)
         .then(offer2 =>
           pc.setLocalDescription(offer2)
           .then(() => {
             assert_session_desc_not_similar(offer1, offer2);
             assert_equals(pc.signalingState, 'have-local-offer');
             assert_session_desc_similar(pc.localDescription, offer2);
             assert_session_desc_similar(pc.pendingLocalDescription, offer2);
             assert_equals(pc.currentLocalDescription, null);

             assert_array_equals(states, ['have-local-offer']);
           }))));
   }, 'Creating and setting offer multiple times should succeed');

   promise_test(async t => {
     const pc1 = new RTCPeerConnection();
     t.add_cleanup(() => pc1.close());
     const pc2 = new RTCPeerConnection();
     t.add_cleanup(() => pc2.close());

     const offer = await pc1.createOffer({offerToReceiveAudio: true}); // [[LastOffer]] set
     const offer2 = await pc2.createOffer({offerToReceiveVideo: true});
     await pc1.setRemoteDescription(offer2);
     await pc1.createAnswer(); // [[LastAnswer]] set
     await pc1.setRemoteDescription({type: "rollback"});
     await pc1.setLocalDescription(offer);
   }, "Setting previously generated offer after a call to createAnswer should work");

   promise_test(async t => {
     const pc1 = new RTCPeerConnection();
     t.add_cleanup(() => pc1.close());
     const pc2 = new RTCPeerConnection();
     t.add_cleanup(() => pc2.close());

     await pc1.setLocalDescription(await pc1.createOffer({offerToReceiveAudio: true}));

     const offer = await pc1.createOffer();
     await pc1.setLocalDescription(offer);
     await pc2.setRemoteDescription(offer);
     const answer = await pc2.createAnswer();
     await pc2.setLocalDescription(answer);
     await pc1.setRemoteDescription(answer);

     assert_equals(pc1.getTransceivers().length, 1);
     assert_equals(pc1.getTransceivers()[0].receiver.track.kind, "audio");
     assert_equals(pc2.getTransceivers().length, 1);
     assert_equals(pc2.getTransceivers()[0].receiver.track.kind, "audio");
   }, "Negotiation works when there has been a repeated setLocalDescription(offer)");

 </script>
	<!doctype html>
	<meta charset=utf-8>
	<title>RTCPeerConnection.prototype.setLocalDescription</title>
	<script src="/resources/testharness.js"></script>
	<script src="/resources/testharnessreport.js"></script>
	<script src="RTCPeerConnection-helper.js"></script>
	<script>
	'use strict';

	// Test is based on the following editor draft:
	// https://w3c.github.io/webrtc-pc/archives/20170605/webrtc.html

	// The following helper functions are called from RTCPeerConnection-helper.js:
	// generateDataChannelOffer
	// assert_session_desc_not_similar
	// assert_session_desc_similar

	/*
	4.3.2. Interface Definition
	[Constructor(optional RTCConfiguration configuration)]
	interface RTCPeerConnection : EventTarget {
	Promise<void> setRemoteDescription(
	RTCSessionDescriptionInit description);

	readonly attribute RTCSessionDescription? remoteDescription;
	readonly attribute RTCSessionDescription? currentRemoteDescription;
	readonly attribute RTCSessionDescription? pendingRemoteDescription;
	...
	};

	4.6.2. RTCSessionDescription Class
	dictionary RTCSessionDescriptionInit {
	required RTCSdpType type;
	DOMString sdp = "";
	};

	4.6.1. RTCSdpType
	enum RTCSdpType {
	"offer",
	"pranswer",
	"answer",
	"rollback"
	};
	*/

	/*
	4.3.2. setLocalDescription
	2. Let lastOffer be the result returned by the last call to createOffer.
	5. If description.sdp is null and description.type is offer, set description.sdp
	to lastOffer.

	4.3.1.6. Set the RTCSessionSessionDescription
	2.2.2. If description is set as a local description, then run one of the following
	steps:
	- If description is of type "offer", set connection.pendingLocalDescription
	to description and signaling state to have-local-offer.
	*/
	promise_test(t => {
	const pc = new RTCPeerConnection();
	t.add_cleanup(() => pc.close());

	const states = [];
	pc.addEventListener('signalingstatechange', () => states.push(pc.signalingState));

	return generateAudioReceiveOnlyOffer(pc)
	.then(offer =>
	pc.setLocalDescription(offer)
	.then(() => {
	assert_equals(pc.signalingState, 'have-local-offer');
	assert_session_desc_similar(pc.localDescription, offer);
	assert_session_desc_similar(pc.pendingLocalDescription, offer);
	assert_equals(pc.currentLocalDescription, null);

	assert_array_equals(states, ['have-local-offer']);
	}));
	}, 'setLocalDescription with valid offer should succeed');

	/*
	4.3.2. setLocalDescription
	2. Let lastOffer be the result returned by the last call to createOffer.
	5. If description.sdp is null and description.type is offer, set description.sdp
	to lastOffer.
	*/
	promise_test(t => {
	const pc = new RTCPeerConnection();
	t.add_cleanup(() => pc.close());
	return generateAudioReceiveOnlyOffer(pc)
	.then(offer =>
	pc.setLocalDescription({ type: 'offer' })
	.then(() => {
	assert_equals(pc.signalingState, 'have-local-offer');
	assert_session_desc_similar(pc.localDescription, offer);
	assert_session_desc_similar(pc.pendingLocalDescription, offer);
	assert_equals(pc.currentLocalDescription, null);
	}));
	}, 'setLocalDescription with type offer and null sdp should use lastOffer generated from createOffer');

	/*
	4.3.2. setLocalDescription
	2. Let lastOffer be the result returned by the last call to createOffer.
	6. If description.type is offer and description.sdp does not match lastOffer,
	reject the promise with a newly created InvalidModificationError and abort
	these steps.
	*/
	promise_test(t => {
	const pc = new RTCPeerConnection();
	t.add_cleanup(() => pc.close());
	const pc2 = new RTCPeerConnection();

	t.add_cleanup(() => pc2.close());

	return generateDataChannelOffer(pc)
	.then(offer =>
	promise_rejects(t, 'InvalidModificationError',
	pc2.setLocalDescription(offer)));
	}, 'setLocalDescription() with offer not created by own createOffer() should reject with InvalidModificationError');

	promise_test(t => {
	// Create first offer with audio line, then second offer with
	// both audio and video line. Since the second offer is the
	// last offer, setLocalDescription would reject when setting
	// with the first offer
	const pc = new RTCPeerConnection();
	t.add_cleanup(() => pc.close());
	return generateAudioReceiveOnlyOffer(pc)
	.then(offer1 =>
	generateVideoReceiveOnlyOffer(pc)
	.then(offer2 => {
	assert_session_desc_not_similar(offer1, offer2);
	return promise_rejects(t, 'InvalidModificationError',
	pc.setLocalDescription(offer1));
	}));
	}, 'Set created offer other than last offer should reject with InvalidModificationError');

	promise_test(t => {
	const pc = new RTCPeerConnection();
	t.add_cleanup(() => pc.close());

	const states = [];
	pc.addEventListener('signalingstatechange', () => states.push(pc.signalingState));

	return generateAudioReceiveOnlyOffer(pc)
	.then(offer1 =>
	pc.setLocalDescription(offer1)
	.then(() =>
	generateVideoReceiveOnlyOffer(pc)
	.then(offer2 =>
	pc.setLocalDescription(offer2)
	.then(() => {
	assert_session_desc_not_similar(offer1, offer2);
	assert_equals(pc.signalingState, 'have-local-offer');
	assert_session_desc_similar(pc.localDescription, offer2);
	assert_session_desc_similar(pc.pendingLocalDescription, offer2);
	assert_equals(pc.currentLocalDescription, null);

	assert_array_equals(states, ['have-local-offer']);
	}))));
	}, 'Creating and setting offer multiple times should succeed');

	promise_test(async t => {
	const pc1 = new RTCPeerConnection();
	t.add_cleanup(() => pc1.close());
	const pc2 = new RTCPeerConnection();
	t.add_cleanup(() => pc2.close());

	const offer = await pc1.createOffer({offerToReceiveAudio: true}); // [[LastOffer]] set
	const offer2 = await pc2.createOffer({offerToReceiveVideo: true});
	await pc1.setRemoteDescription(offer2);
	await pc1.createAnswer(); // [[LastAnswer]] set
	await pc1.setRemoteDescription({type: "rollback"});
	await pc1.setLocalDescription(offer);
	}, "Setting previously generated offer after a call to createAnswer should work");

	promise_test(async t => {
	const pc1 = new RTCPeerConnection();
	t.add_cleanup(() => pc1.close());
	const pc2 = new RTCPeerConnection();
	t.add_cleanup(() => pc2.close());

	await pc1.setLocalDescription(await pc1.createOffer({offerToReceiveAudio: true}));

	const offer = await pc1.createOffer();
	await pc1.setLocalDescription(offer);
	await pc2.setRemoteDescription(offer);
	const answer = await pc2.createAnswer();
	await pc2.setLocalDescription(answer);
	await pc1.setRemoteDescription(answer);

	assert_equals(pc1.getTransceivers().length, 1);
	assert_equals(pc1.getTransceivers()[0].receiver.track.kind, "audio");
	assert_equals(pc2.getTransceivers().length, 1);
	assert_equals(pc2.getTransceivers()[0].receiver.track.kind, "audio");
	}, "Negotiation works when there has been a repeated setLocalDescription(offer)");

	</script>