| <!doctype html> |
| <meta charset=utf-8> |
| <title>RTCPeerConnection.prototype.createOffer</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="../RTCPeerConnection-helper.js"></script> |
| <script> |
| 'use strict'; |
| |
| // Tests for the construction of initial offers according to |
| // draft-ietf-rtcweb-jsep-24 section 5.2.1 |
| promise_test(async t => { |
| const pc = new RTCPeerConnection(); |
| const offer = await generateVideoReceiveOnlyOffer(pc); |
| let offer_lines = offer.sdp.split('\r\n'); |
| // The first 3 lines are dictated by JSEP. |
| assert_equals(offer_lines[0], "v=0"); |
| assert_equals(offer_lines[1].slice(0, 2), "o="); |
| // JSEP says that the address part SHOULD be a meaningless address |
| // "such as" IN IP4 127.0.0.1. We do strict matching here in order |
| // to detect if anyone ever uses something different. |
| assert_regexp_match(offer_lines[1], /^o=- \d+ \d+ IN IP4 127.0.0.1$/); |
| const fields = RegExp(/^o=- (\d+) (\d+)/).exec(offer_lines[1]); |
| // Per RFC 3264, the sess-id should be representable in an uint64 |
| // Note: JSEP -24 has this wrong - see bug: |
| // https://github.com/rtcweb-wg/jsep/issues/855 |
| assert_less_than(Number(fields[1]), 2**64); |
| // Per RFC 3264, the version should be less than 2^62 to avoid overflow |
| assert_less_than(Number(fields[2]), 2**62); |
| // Note: using - in s=- is a SHOULD in JSEP, not a MUST. |
| assert_equals(offer_lines[2], "s=-"); |
| // After this, the order is not dictated by JSEP. |
| // TODO: Check lines subsequent to the s= line. |
| }, 'Offer conforms to basic SDP requirements'); |
| </script> |
