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

 <!doctype html>
 <meta charset=utf-8>
 <title>RTCPeerConnection.prototype.ondatachannel</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:
   // exchangeIceCandidates
   // doSignalingHandshake

   /*
     6.2.  RTCDataChannel
       When an underlying data transport is to be announced
         2.  Let channel be a newly created RTCDataChannel object.
         5.  Set channel's readyState attribute to connecting.
         6.  Fire a datachannel event named datachannel with channel at the
             RTCPeerConnection object.

     6.3.  RTCDataChannelEvent
       Firing a datachannel event named e with a RTCDataChannel channel means
       that an event with the name e, which does not bubble (except where
       otherwise stated) and is not cancelable (except where otherwise stated),
       and which uses the RTCDataChannelEvent interface with the channel
       attribute set to channel, must be created and dispatched at the given
       target.

       interface RTCDataChannelEvent : Event {
         readonly attribute RTCDataChannel channel;
       };
    */
   async_test(t => {
     const localPc = new RTCPeerConnection();
     t.add_cleanup(() => localPc.close());
     const remotePc = new RTCPeerConnection();

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

     let eventCount = 0;

     const onDataChannel = t.step_func_done(event => {
       eventCount++;
       assert_equals(eventCount, 1,
         'Expect data channel event to fire exactly once');

       assert_true(event instanceof RTCDataChannelEvent,
         'Expect event to be instance of RTCDataChannelEvent');

       assert_equals(event.bubbles, false);
       assert_equals(event.cancelable, false);

       const { channel } = event;
       assert_true(channel instanceof RTCDataChannel,
         'Expect channel to be instance of RTCDataChannel');

       const { readyState } = channel;

       // The spec requires readyState to be connecting at first,
       // but it may quickly change to open before the callback
       // is invoked, especially with local connections.
       assert_true(readyState === 'connecting' || readyState === 'open',
         'Expect channel ready state to be either connecting or open');
     });

     localPc.createDataChannel('test');

     remotePc.addEventListener('datachannel', onDataChannel);
     exchangeIceCandidates(localPc, remotePc);
     doSignalingHandshake(localPc, remotePc);
   }, 'datachannel event should fire when new data channel is announced to the remote peer');

   /*
     6.2.  RTCDataChannel
       interface RTCDataChannel : EventTarget {
         readonly attribute USVString           label;
         readonly attribute boolean             ordered;
         readonly attribute unsigned short?     maxPacketLifeTime;
         readonly attribute unsigned short?     maxRetransmits;
         readonly attribute USVString           protocol;
         readonly attribute boolean             negotiated;
         readonly attribute unsigned short?     id;
         readonly attribute RTCPriorityType     priority;
         readonly attribute RTCDataChannelState readyState;
         ...
       };

       When an underlying data transport is to be announced
         3.  Let configuration be an information bundle received from the
             other peer as a part of the process to establish the underlying
             data transport described by the WebRTC DataChannel Protocol
             specification [RTCWEB-DATA-PROTOCOL].
         4.  Initialize channel's label, ordered, maxPacketLifeTime,
             maxRetransmits, protocol, negotiated and id attributes to their
             corresponding values in configuration.
    */
   async_test(t => {
     const localPc = new RTCPeerConnection();
     t.add_cleanup(() => localPc.close());
     const remotePc = new RTCPeerConnection();

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

     const onDataChannel = t.step_func_done(event => {
       const remoteChannel = event.channel;
       assert_true(remoteChannel instanceof RTCDataChannel,
         'Expect channel to be instance of RTCDataChannel');

       assert_equals(remoteChannel.label, 'test');
       assert_equals(remoteChannel.id, 8);
       assert_equals(remoteChannel.ordered, false);
       assert_equals(remoteChannel.maxRetransmits, 1);
       assert_equals(remoteChannel.protocol, 'custom');
       assert_equals(remoteChannel.priority, 'high');
     });

     const localChannel = localPc.createDataChannel('test', {
       id: 8,
       ordered: false,
       maxRetransmits: 1,
       protocol: 'custom',
       priority: 'high'
     });

     assert_equals(localChannel.label, 'test');
     assert_equals(localChannel.id, 8);
     assert_equals(localChannel.ordered, false);
     assert_equals(localChannel.maxRetransmits, 1);
     assert_equals(localChannel.protocol, 'custom');
     assert_equals(localChannel.priority, 'high');

     remotePc.addEventListener('datachannel', onDataChannel);
     exchangeIceCandidates(localPc, remotePc);
     doSignalingHandshake(localPc, remotePc);
   }, 'Data channel created on remote peer should match the same configuration as local peer');

   /*
     6.2.  RTCDataChannel
       Dictionary RTCDataChannelInit Members
         negotiated
           The default value of false tells the user agent to announce the
           channel in-band and instruct the other peer to dispatch a corresponding
           RTCDataChannel object. If set to true, it is up to the application
           to negotiate the channel and create a RTCDataChannel object with the
           same id at the other peer.
    */
   async_test(t => {
     const localPc = new RTCPeerConnection();
     t.add_cleanup(() => localPc.close());
     const remotePc = new RTCPeerConnection();

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

     const onDataChannel = t.unreached_func('datachannel event should not be fired');

     localPc.createDataChannel('test', {
       negotiated: true
     });

     remotePc.addEventListener('datachannel', onDataChannel);
     exchangeIceCandidates(localPc, remotePc);
     doSignalingHandshake(localPc, remotePc);

     t.step_timeout(t.step_func_done(), 200);
   }, 'Data channel created with negotiated set to true should not fire datachannel event on remote peer');

   /*
     Non-testable
     6.2.  RTCDataChannel
       When an underlying data transport is to be announced
         1.  If the associated RTCPeerConnection object's [[isClosed]] slot
             is true, abort these steps.

     The above step is not testable because to reach it we would have to
     close the peer connection after the remote peer call
     setLocalDescription(answer) but before the underlying data transport
     is connected. This require the promise callback for setLocalDescription()
     to be called at the right moment, which is not always possible.
    */
 </script>
	<!doctype html>
	<meta charset=utf-8>
	<title>RTCPeerConnection.prototype.ondatachannel</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:
	// exchangeIceCandidates
	// doSignalingHandshake

	/*
	6.2. RTCDataChannel
	When an underlying data transport is to be announced
	2. Let channel be a newly created RTCDataChannel object.
	5. Set channel's readyState attribute to connecting.
	6. Fire a datachannel event named datachannel with channel at the
	RTCPeerConnection object.

	6.3. RTCDataChannelEvent
	Firing a datachannel event named e with a RTCDataChannel channel means
	that an event with the name e, which does not bubble (except where
	otherwise stated) and is not cancelable (except where otherwise stated),
	and which uses the RTCDataChannelEvent interface with the channel
	attribute set to channel, must be created and dispatched at the given
	target.

	interface RTCDataChannelEvent : Event {
	readonly attribute RTCDataChannel channel;
	};
	*/
	async_test(t => {
	const localPc = new RTCPeerConnection();
	t.add_cleanup(() => localPc.close());
	const remotePc = new RTCPeerConnection();

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

	let eventCount = 0;

	const onDataChannel = t.step_func_done(event => {
	eventCount++;
	assert_equals(eventCount, 1,
	'Expect data channel event to fire exactly once');

	assert_true(event instanceof RTCDataChannelEvent,
	'Expect event to be instance of RTCDataChannelEvent');

	assert_equals(event.bubbles, false);
	assert_equals(event.cancelable, false);

	const { channel } = event;
	assert_true(channel instanceof RTCDataChannel,
	'Expect channel to be instance of RTCDataChannel');

	const { readyState } = channel;

	// The spec requires readyState to be connecting at first,
	// but it may quickly change to open before the callback
	// is invoked, especially with local connections.
	assert_true(readyState === 'connecting' \|\| readyState === 'open',
	'Expect channel ready state to be either connecting or open');
	});

	localPc.createDataChannel('test');

	remotePc.addEventListener('datachannel', onDataChannel);
	exchangeIceCandidates(localPc, remotePc);
	doSignalingHandshake(localPc, remotePc);
	}, 'datachannel event should fire when new data channel is announced to the remote peer');

	/*
	6.2. RTCDataChannel
	interface RTCDataChannel : EventTarget {
	readonly attribute USVString label;
	readonly attribute boolean ordered;
	readonly attribute unsigned short? maxPacketLifeTime;
	readonly attribute unsigned short? maxRetransmits;
	readonly attribute USVString protocol;
	readonly attribute boolean negotiated;
	readonly attribute unsigned short? id;
	readonly attribute RTCPriorityType priority;
	readonly attribute RTCDataChannelState readyState;
	...
	};

	When an underlying data transport is to be announced
	3. Let configuration be an information bundle received from the
	other peer as a part of the process to establish the underlying
	data transport described by the WebRTC DataChannel Protocol
	specification [RTCWEB-DATA-PROTOCOL].
	4. Initialize channel's label, ordered, maxPacketLifeTime,
	maxRetransmits, protocol, negotiated and id attributes to their
	corresponding values in configuration.
	*/
	async_test(t => {
	const localPc = new RTCPeerConnection();
	t.add_cleanup(() => localPc.close());
	const remotePc = new RTCPeerConnection();

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

	const onDataChannel = t.step_func_done(event => {
	const remoteChannel = event.channel;
	assert_true(remoteChannel instanceof RTCDataChannel,
	'Expect channel to be instance of RTCDataChannel');

	assert_equals(remoteChannel.label, 'test');
	assert_equals(remoteChannel.id, 8);
	assert_equals(remoteChannel.ordered, false);
	assert_equals(remoteChannel.maxRetransmits, 1);
	assert_equals(remoteChannel.protocol, 'custom');
	assert_equals(remoteChannel.priority, 'high');
	});

	const localChannel = localPc.createDataChannel('test', {
	id: 8,
	ordered: false,
	maxRetransmits: 1,
	protocol: 'custom',
	priority: 'high'
	});

	assert_equals(localChannel.label, 'test');
	assert_equals(localChannel.id, 8);
	assert_equals(localChannel.ordered, false);
	assert_equals(localChannel.maxRetransmits, 1);
	assert_equals(localChannel.protocol, 'custom');
	assert_equals(localChannel.priority, 'high');

	remotePc.addEventListener('datachannel', onDataChannel);
	exchangeIceCandidates(localPc, remotePc);
	doSignalingHandshake(localPc, remotePc);
	}, 'Data channel created on remote peer should match the same configuration as local peer');

	/*
	6.2. RTCDataChannel
	Dictionary RTCDataChannelInit Members
	negotiated
	The default value of false tells the user agent to announce the
	channel in-band and instruct the other peer to dispatch a corresponding
	RTCDataChannel object. If set to true, it is up to the application
	to negotiate the channel and create a RTCDataChannel object with the
	same id at the other peer.
	*/
	async_test(t => {
	const localPc = new RTCPeerConnection();
	t.add_cleanup(() => localPc.close());
	const remotePc = new RTCPeerConnection();

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

	const onDataChannel = t.unreached_func('datachannel event should not be fired');

	localPc.createDataChannel('test', {
	negotiated: true
	});

	remotePc.addEventListener('datachannel', onDataChannel);
	exchangeIceCandidates(localPc, remotePc);
	doSignalingHandshake(localPc, remotePc);

	t.step_timeout(t.step_func_done(), 200);
	}, 'Data channel created with negotiated set to true should not fire datachannel event on remote peer');

	/*
	Non-testable
	6.2. RTCDataChannel
	When an underlying data transport is to be announced
	1. If the associated RTCPeerConnection object's [[isClosed]] slot
	is true, abort these steps.

	The above step is not testable because to reach it we would have to
	close the peer connection after the remote peer call
	setLocalDescription(answer) but before the underlying data transport
	is connected. This require the promise callback for setLocalDescription()
	to be called at the right moment, which is not always possible.
	*/
	</script>