In order to reduce the size and scope of a follow-up CL, this CL makes
some cleaning up and improvements to existing tests and adds some minor
test utility methods that will be used in the follow-up.
No change in behavior, this CL...
- Makes use of NiceMock in RtpTransceiver tests to avoid wall of text
spam for various "uninteresting" method calls in all tests in this
file.
- Refactors creating senders, receivers and transceivers to allow the
follow-up CL to create such objects for kind "video" as well.
- Exposes cricket::FakeVideoEngine* to RtpTranscieverTest and allows
adding unidirectional video codecs in the fake engine, to be used by
the follow-up CL's tests.
- Allows creating fake video engine codecs from SdpVideoFormat in the
fake decoder factory (already possible in the fake encoder factory).
Bug: chromium:381407888
Change-Id: Ie07eff79d832dd21800b95fd584891ebf4520798
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/374900
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Henrik Boström <hbos@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#43776}
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