chromium/src/third_party/blink/web_tests/external/wpt/webrtc/RTCPeerConnection-iceGatheringState.html - manifest_repos/chromium_src - Git at Google

 <!doctype html>
 <meta charset=utf-8>
 <title>RTCPeerConnection.prototype.iceGatheringState</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:
   // exchangeOfferAnswer
   // exchangeIceCandidates
   // generateAudioReceiveOnlyOffer

   /*
     4.3.2.  Interface Definition
       interface RTCPeerConnection : EventTarget {
         ...
         readonly  attribute RTCIceGatheringState   iceGatheringState;
                   attribute EventHandler           onicegatheringstatechange;
       };

     4.4.2.  RTCIceGatheringState Enum
       enum RTCIceGatheringState {
         "new",
         "gathering",
         "complete"
       };

     5.6.  RTCIceTransport Interface
       interface RTCIceTransport {
         readonly attribute RTCIceGathererState  gatheringState;
         ...
       };

       enum RTCIceGathererState {
         "new",
         "gathering",
         "complete"
       };
    */

   /*
     4.4.2.  RTCIceGatheringState Enum
       new
         Any of the RTCIceTransport s are in the new gathering state and
         none of the transports are in the gathering state, or there are
         no transports.
    */
   test(t => {
     const pc = new RTCPeerConnection();
     assert_equals(pc.iceGatheringState, 'new');
   }, 'Initial iceGatheringState should be new');

   async_test(t => {
     const pc = new RTCPeerConnection();

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

     let reachedGathering = false;
     const onIceGatheringStateChange = t.step_func(() => {
       const { iceGatheringState } = pc;

       if(iceGatheringState === 'gathering') {
         reachedGathering = true;
       } else if(iceGatheringState === 'complete') {
         assert_true(reachedGathering, 'iceGatheringState should reach gathering before complete');
         t.done();
       }
     });

     assert_equals(pc.onicegatheringstatechange, null,
       'Expect connection to have icegatheringstatechange event');
     assert_equals(pc.iceGatheringState, 'new');

     pc.addEventListener('icegatheringstatechange', onIceGatheringStateChange);

     generateAudioReceiveOnlyOffer(pc)
     .then(offer => pc.setLocalDescription(offer))
     .then(err => t.step_func(err =>
       assert_unreached(`Unhandled rejection ${err.name}: ${err.message}`)));
   }, 'iceGatheringState should eventually become complete after setLocalDescription');

   promise_test(async t => {
     const pc1 = new RTCPeerConnection();
     t.add_cleanup(() => pc1.close());
     const pc2 = new RTCPeerConnection();
     t.add_cleanup(() => pc2.close());
     await initialOfferAnswerWithIceGatheringStateTransitions(
         pc1, pc2, {offerToReceiveAudio: true});

     expectNoMoreGatheringStateChanges(t, pc1);
     expectNoMoreGatheringStateChanges(t, pc2);

     await pc1.setLocalDescription(await pc1.createOffer());
     await pc2.setLocalDescription(await pc2.createOffer());

     await new Promise(r => t.step_timeout(r, 500));
   }, 'setLocalDescription(reoffer) with no new transports should not cause iceGatheringState to change');

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

     expectNoMoreGatheringStateChanges(t, pc1);

     await pc1.setLocalDescription(await pc1.createOffer());

     await new Promise(r => t.step_timeout(r, 500));
   }, 'setLocalDescription() with no transports should not cause iceGatheringState to change');

   promise_test(async t => {
     const pc1 = new RTCPeerConnection();
     t.add_cleanup(() => pc1.close());
     const pc2 = new RTCPeerConnection();
     t.add_cleanup(() => pc2.close());
     await initialOfferAnswerWithIceGatheringStateTransitions(
         pc1, pc2, {offerToReceiveAudio:true});
     await pc1.setLocalDescription(await pc1.createOffer({iceRestart: true}));
     await iceGatheringStateTransitions(pc1, 'gathering', 'complete');
   }, 'setLocalDescription(reoffer) with a new transport should cause iceGatheringState to go to "checking" and then "complete"');

   promise_test(async t => {
     const pc1 = new RTCPeerConnection();
     t.add_cleanup(() => pc1.close());
     const pc2 = new RTCPeerConnection();
     t.add_cleanup(() => pc2.close());
     expectNoMoreGatheringStateChanges(t, pc2);
     const offer = await pc1.createOffer({offerToReceiveAudio: true});
     await pc2.setRemoteDescription(offer);
     await pc2.setRemoteDescription(offer);
     await pc2.setRemoteDescription({type: 'rollback'});
     await pc2.setRemoteDescription(offer);
   }, 'sRD does not cause ICE gathering state changes');

   promise_test(async t => {
     const pc1 = new RTCPeerConnection();
     t.add_cleanup(() => pc1.close());
     const pc2 = new RTCPeerConnection();
     t.add_cleanup(() => pc2.close());
     await initialOfferAnswerWithIceGatheringStateTransitions(
         pc1, pc2, {offerToReceiveAudio: true});

     const pc1waiter = iceGatheringStateTransitions(pc1, 'new');
     const pc2waiter = iceGatheringStateTransitions(pc2, 'new');
     pc1.getTransceivers()[0].stop();
     await pc1.setLocalDescription(await pc1.createOffer());
     await pc2.setRemoteDescription(pc1.localDescription);
     await pc2.setLocalDescription(await pc2.createAnswer());
     assert_equals(pc2.getTransceivers().length, 0,
                  'PC2 transceivers should be invisible after negotiation');
     assert_equals(pc2.iceGatheringState, 'new');
     await pc2waiter;
     await pc1.setRemoteDescription(pc2.localDescription);
     assert_equals(pc1.getTransceivers().length, 0,
                   'PC1 transceivers should be invisible after negotiation');
     assert_equals(pc1.iceGatheringState, 'new');
     await pc1waiter;
   }, 'renegotiation that closes all transports should result in ICE gathering state "new"');

   /*
     4.4.2.  RTCIceGatheringState Enum
       gathering
         Any of the RTCIceTransport s are in the gathering state.

       complete
         At least one RTCIceTransport exists, and all RTCIceTransports are
         in the completed gathering state.

     5.6.  RTCIceGathererState
       gathering
         The RTCIceTransport is in the process of gathering candidates.

       complete
         The RTCIceTransport has completed gathering and the end-of-candidates
         indication for this transport has been sent. It will not gather candidates
         again until an ICE restart causes it to restart.
    */
   async_test(t => {
     const pc1 = new RTCPeerConnection();
     t.add_cleanup(() => pc1.close());
     const pc2 = new RTCPeerConnection();

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

     const onIceGatheringStateChange = t.step_func(() => {
       const { iceGatheringState } = pc2;

       if(iceGatheringState === 'gathering') {
         const iceTransport = pc2.sctp.transport.iceTransport;

         assert_equals(iceTransport.gatheringState, 'gathering',
           'Expect ICE transport to be in checking gatheringState when iceGatheringState is checking');

       } else if(iceGatheringState === 'complete') {
         const iceTransport = pc2.sctp.transport.iceTransport;

         assert_equals(iceTransport.gatheringState, 'complete',
           'Expect ICE transport to be in complete gatheringState when iceGatheringState is complete');

         t.done();
       }
     });

     pc1.createDataChannel('test');

     assert_equals(pc2.onicegatheringstatechange, null,
       'Expect connection to have icegatheringstatechange event');

     // Spec bug w3c/webrtc-pc#1382
     // Because sctp is only defined when answer is set, we listen
     // to pc2 so that we can be confident that sctp is defined
     // when icegatheringstatechange event is fired.
     pc2.addEventListener('icegatheringstatechange', onIceGatheringStateChange);

     exchangeIceCandidates(pc1, pc2);
     exchangeOfferAnswer(pc1, pc2);
   }, 'connection with one data channel should eventually have connected connection state');

   /*
     TODO
     5.6.  RTCIceTransport Interface
       new
         The RTCIceTransport was just created, and has not started gathering
         candidates yet.
    */
 </script>
	<!doctype html>
	<meta charset=utf-8>
	<title>RTCPeerConnection.prototype.iceGatheringState</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:
	// exchangeOfferAnswer
	// exchangeIceCandidates
	// generateAudioReceiveOnlyOffer

	/*
	4.3.2. Interface Definition
	interface RTCPeerConnection : EventTarget {
	...
	readonly attribute RTCIceGatheringState iceGatheringState;
	attribute EventHandler onicegatheringstatechange;
	};

	4.4.2. RTCIceGatheringState Enum
	enum RTCIceGatheringState {
	"new",
	"gathering",
	"complete"
	};

	5.6. RTCIceTransport Interface
	interface RTCIceTransport {
	readonly attribute RTCIceGathererState gatheringState;
	...
	};

	enum RTCIceGathererState {
	"new",
	"gathering",
	"complete"
	};
	*/

	/*
	4.4.2. RTCIceGatheringState Enum
	new
	Any of the RTCIceTransport s are in the new gathering state and
	none of the transports are in the gathering state, or there are
	no transports.
	*/
	test(t => {
	const pc = new RTCPeerConnection();
	assert_equals(pc.iceGatheringState, 'new');
	}, 'Initial iceGatheringState should be new');

	async_test(t => {
	const pc = new RTCPeerConnection();

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

	let reachedGathering = false;
	const onIceGatheringStateChange = t.step_func(() => {
	const { iceGatheringState } = pc;

	if(iceGatheringState === 'gathering') {
	reachedGathering = true;
	} else if(iceGatheringState === 'complete') {
	assert_true(reachedGathering, 'iceGatheringState should reach gathering before complete');
	t.done();
	}
	});

	assert_equals(pc.onicegatheringstatechange, null,
	'Expect connection to have icegatheringstatechange event');
	assert_equals(pc.iceGatheringState, 'new');

	pc.addEventListener('icegatheringstatechange', onIceGatheringStateChange);

	generateAudioReceiveOnlyOffer(pc)
	.then(offer => pc.setLocalDescription(offer))
	.then(err => t.step_func(err =>
	assert_unreached(`Unhandled rejection ${err.name}: ${err.message}`)));
	}, 'iceGatheringState should eventually become complete after setLocalDescription');

	promise_test(async t => {
	const pc1 = new RTCPeerConnection();
	t.add_cleanup(() => pc1.close());
	const pc2 = new RTCPeerConnection();
	t.add_cleanup(() => pc2.close());
	await initialOfferAnswerWithIceGatheringStateTransitions(
	pc1, pc2, {offerToReceiveAudio: true});

	expectNoMoreGatheringStateChanges(t, pc1);
	expectNoMoreGatheringStateChanges(t, pc2);

	await pc1.setLocalDescription(await pc1.createOffer());
	await pc2.setLocalDescription(await pc2.createOffer());

	await new Promise(r => t.step_timeout(r, 500));
	}, 'setLocalDescription(reoffer) with no new transports should not cause iceGatheringState to change');

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

	expectNoMoreGatheringStateChanges(t, pc1);

	await pc1.setLocalDescription(await pc1.createOffer());

	await new Promise(r => t.step_timeout(r, 500));
	}, 'setLocalDescription() with no transports should not cause iceGatheringState to change');

	promise_test(async t => {
	const pc1 = new RTCPeerConnection();
	t.add_cleanup(() => pc1.close());
	const pc2 = new RTCPeerConnection();
	t.add_cleanup(() => pc2.close());
	await initialOfferAnswerWithIceGatheringStateTransitions(
	pc1, pc2, {offerToReceiveAudio:true});
	await pc1.setLocalDescription(await pc1.createOffer({iceRestart: true}));
	await iceGatheringStateTransitions(pc1, 'gathering', 'complete');
	}, 'setLocalDescription(reoffer) with a new transport should cause iceGatheringState to go to "checking" and then "complete"');

	promise_test(async t => {
	const pc1 = new RTCPeerConnection();
	t.add_cleanup(() => pc1.close());
	const pc2 = new RTCPeerConnection();
	t.add_cleanup(() => pc2.close());
	expectNoMoreGatheringStateChanges(t, pc2);
	const offer = await pc1.createOffer({offerToReceiveAudio: true});
	await pc2.setRemoteDescription(offer);
	await pc2.setRemoteDescription(offer);
	await pc2.setRemoteDescription({type: 'rollback'});
	await pc2.setRemoteDescription(offer);
	}, 'sRD does not cause ICE gathering state changes');

	promise_test(async t => {
	const pc1 = new RTCPeerConnection();
	t.add_cleanup(() => pc1.close());
	const pc2 = new RTCPeerConnection();
	t.add_cleanup(() => pc2.close());
	await initialOfferAnswerWithIceGatheringStateTransitions(
	pc1, pc2, {offerToReceiveAudio: true});

	const pc1waiter = iceGatheringStateTransitions(pc1, 'new');
	const pc2waiter = iceGatheringStateTransitions(pc2, 'new');
	pc1.getTransceivers()[0].stop();
	await pc1.setLocalDescription(await pc1.createOffer());
	await pc2.setRemoteDescription(pc1.localDescription);
	await pc2.setLocalDescription(await pc2.createAnswer());
	assert_equals(pc2.getTransceivers().length, 0,
	'PC2 transceivers should be invisible after negotiation');
	assert_equals(pc2.iceGatheringState, 'new');
	await pc2waiter;
	await pc1.setRemoteDescription(pc2.localDescription);
	assert_equals(pc1.getTransceivers().length, 0,
	'PC1 transceivers should be invisible after negotiation');
	assert_equals(pc1.iceGatheringState, 'new');
	await pc1waiter;
	}, 'renegotiation that closes all transports should result in ICE gathering state "new"');

	/*
	4.4.2. RTCIceGatheringState Enum
	gathering
	Any of the RTCIceTransport s are in the gathering state.

	complete
	At least one RTCIceTransport exists, and all RTCIceTransports are
	in the completed gathering state.

	5.6. RTCIceGathererState
	gathering
	The RTCIceTransport is in the process of gathering candidates.

	complete
	The RTCIceTransport has completed gathering and the end-of-candidates
	indication for this transport has been sent. It will not gather candidates
	again until an ICE restart causes it to restart.
	*/
	async_test(t => {
	const pc1 = new RTCPeerConnection();
	t.add_cleanup(() => pc1.close());
	const pc2 = new RTCPeerConnection();

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

	const onIceGatheringStateChange = t.step_func(() => {
	const { iceGatheringState } = pc2;

	if(iceGatheringState === 'gathering') {
	const iceTransport = pc2.sctp.transport.iceTransport;

	assert_equals(iceTransport.gatheringState, 'gathering',
	'Expect ICE transport to be in checking gatheringState when iceGatheringState is checking');

	} else if(iceGatheringState === 'complete') {
	const iceTransport = pc2.sctp.transport.iceTransport;

	assert_equals(iceTransport.gatheringState, 'complete',
	'Expect ICE transport to be in complete gatheringState when iceGatheringState is complete');

	t.done();
	}
	});

	pc1.createDataChannel('test');

	assert_equals(pc2.onicegatheringstatechange, null,
	'Expect connection to have icegatheringstatechange event');

	// Spec bug w3c/webrtc-pc#1382
	// Because sctp is only defined when answer is set, we listen
	// to pc2 so that we can be confident that sctp is defined
	// when icegatheringstatechange event is fired.
	pc2.addEventListener('icegatheringstatechange', onIceGatheringStateChange);

	exchangeIceCandidates(pc1, pc2);
	exchangeOfferAnswer(pc1, pc2);
	}, 'connection with one data channel should eventually have connected connection state');

	/*
	TODO
	5.6. RTCIceTransport Interface
	new
	The RTCIceTransport was just created, and has not started gathering
	candidates yet.
	*/
	</script>