| <!doctype html> |
| <meta charset=utf-8> |
| <title>RTCDataChannel id attribute</title> |
| <script src=/resources/testharness.js></script> |
| <script src=/resources/testharnessreport.js></script> |
| <script> |
| 'use strict'; |
| |
| // This and the test below verify that after a description is set that |
| // negotiates the DTLS role used by SCTP, data channels with unset IDs |
| // have IDs set according to the rules in rtcweb-data-channel. |
| promise_test(test => { |
| const pc = new RTCPeerConnection; |
| const channel = pc.createDataChannel(''); |
| return pc.createOffer() |
| .then(offer => pc.setLocalDescription(offer)) |
| .then(() => { |
| // Turn our own offer SDP into valid answer SDP by setting the DTLS role to |
| // "active". |
| const answer = { |
| type: "answer", |
| sdp: pc.localDescription.sdp.replace("actpass", "active") |
| }; |
| return pc.setRemoteDescription(answer); |
| }) |
| .then(() => { |
| // Since the remote description had an "active" DTLS role, we're the server |
| // and should use odd data channel IDs, according to rtcweb-data-channel. |
| assert_equals(channel.id % 2, 1, 'id'); |
| const another_channel = pc.createDataChannel('another'); |
| assert_equals(another_channel.id % 2, 1, 'id'); |
| assert_not_equals(channel.id, another_channel.id); |
| }) |
| }, "DTLS client uses odd data channel IDs"); |
| |
| promise_test(test => { |
| const pc = new RTCPeerConnection; |
| const channel = pc.createDataChannel(''); |
| return pc.createOffer() |
| .then(offer => pc.setLocalDescription(offer)) |
| .then(() => { |
| // Turn our own offer SDP into valid answer SDP by setting the DTLS role to |
| // "passive". |
| const answer = { |
| type: "answer", |
| sdp: pc.localDescription.sdp.replace("actpass", "passive") |
| }; |
| return pc.setRemoteDescription(answer); |
| }) |
| .then(() => { |
| // Since the remote description had a "passive" DTLS role, we're the client |
| // and should use even data channel IDs, according to rtcweb-data-channel. |
| assert_equals(channel.id % 2, 0, 'id'); |
| const another_channel = pc.createDataChannel('another'); |
| assert_equals(another_channel.id % 2, 0, 'id'); |
| assert_not_equals(channel.id, another_channel.id); |
| }) |
| }, "DTLS server uses even data channel IDs"); |
| |
| </script> |
