Bug 1950376 [wpt PR 50929] - webrtc wpt: add test asserting the order…

… of track events matches the SDP, a=testonly

Automatic update from web-platform-tests
webrtc wpt: add test asserting the order of track events matches the SDP

and is not dependent on the order of tracks in the MediaStream

See
  w3c/mediacapture-main#1028

Bug: None
Change-Id: I77ac10a078632bc9ae944a3254626ff30965c433
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6286091
Commit-Queue: Philipp Hancke <philipp.hanckegooglemail.com>
Reviewed-by: Harald Alvestrand <htachromium.org>
Reviewed-by: Guido Urdaneta <guidouchromium.org>
Cr-Commit-Position: refs/heads/main{#1424488}

--

wpt-commits: 436123f65ed0a64afd3aea668b8928126fb422c1
wpt-pr: 50929

UltraBlame original commit: a225ba3e9bd15af60aead9ce00df7d7070c240ad

testing/web-platform/tests/webrtc/RTCPeerConnection-ontrack.https.html

@@ -2107,6 +2107,307 @@
 )
 )
 ;
+promise_test
+(
+async
+t
+=
+>
+{
+const
+pc1
+=
+new
+RTCPeerConnection
+(
+)
+;
+t
+.
+add_cleanup
+(
+(
+)
+=
+>
+pc1
+.
+close
+(
+)
+)
+;
+const
+pc2
+=
+new
+RTCPeerConnection
+(
+)
+;
+t
+.
+add_cleanup
+(
+(
+)
+=
+>
+pc2
+.
+close
+(
+)
+)
+;
+const
+stream
+=
+new
+MediaStream
+(
+)
+;
+const
+stream2
+=
+new
+MediaStream
+(
+)
+;
+/
+/
+audio
+-
+then
+-
+video
+.
+pc1
+.
+addTransceiver
+(
+'
+audio
+'
+{
+streams
+:
+[
+stream
+]
+}
+)
+;
+pc1
+.
+addTransceiver
+(
+'
+video
+'
+{
+streams
+:
+[
+stream
+]
+}
+)
+;
+/
+/
+video
+-
+then
+-
+audio
+pc1
+.
+addTransceiver
+(
+'
+video
+'
+{
+streams
+:
+[
+stream2
+]
+}
+)
+;
+pc1
+.
+addTransceiver
+(
+'
+audio
+'
+{
+streams
+:
+[
+stream2
+]
+}
+)
+;
+const
+tracks
+=
+[
+]
+;
+pc2
+.
+ontrack
+=
+(
+e
+)
+=
+>
+tracks
+.
+push
+(
+e
+.
+track
+)
+await
+pc2
+.
+setRemoteDescription
+(
+await
+pc1
+.
+createOffer
+(
+)
+)
+;
+assert_equals
+(
+tracks
+.
+length
+4
+'
+ontrack
+should
+have
+fired
+twice
+'
+)
+;
+assert_equals
+(
+tracks
+[
+0
+]
+.
+kind
+'
+audio
+'
+'
+first
+ontrack
+fires
+with
+an
+audio
+track
+'
+)
+;
+assert_equals
+(
+tracks
+[
+1
+]
+.
+kind
+'
+video
+'
+'
+second
+ontrack
+fires
+with
+a
+video
+track
+'
+)
+;
+assert_equals
+(
+tracks
+[
+2
+]
+.
+kind
+'
+video
+'
+'
+third
+ontrack
+fires
+with
+a
+video
+track
+'
+)
+;
+assert_equals
+(
+tracks
+[
+3
+]
+.
+kind
+'
+audio
+'
+'
+fourth
+ontrack
+fires
+with
+an
+audio
+track
+'
+)
+;
+}
+addTransceiver
+order
+of
+kinds
+is
+retained
+in
+ontrack
+at
+the
+receiver
+)
+;
 <
 /
 script