Add full client+server multi-browser integration testing

[ibc]

For mediasoup 2.0 (in which we'll have mediasoup-client we need a full integration testing environment to test different browsers joining a mediasoup room.

[ibc]

Some resources:

• KITE: KITE is a test engine designed to test WebRTC interoperability across browsers
  • Google's announcement
• W3C WebDriver
• testRTC
• Bringing automated testing to Microsoft Edge through WebDriver
• Selenium, Travis-CI and WebRTC
• SauceLabs
• Nightwatch.js
• Gocd
• github.com/fippo/testbed
• travis-multirunner

Notes:

• avoid https://seleniumhq.github.io/selenium/docs/api/javascript/module/selenium-webdriver/lib/promise.html and creating driver instances inside that. That was incredibly flaky.

[fippo]

add karma to the list of resources. For single-browser tests I found it much more reliable than selenium ;-)

[ibc]

Annotated :)

[lgrahl]

A bit outdated but still useful: https://github.com/nplab/WebRTC-Data-Channel-Playground Not really much of a test engine, though.

[ibc]

Unfortunately there is no DataChannel support in mediasoup yet :(

[grahamtallen]

Probably saw this already, but just in case: https://www.cosmosoftware.io/publications/andre2018_Comparative_Study_of_SFUs.pdf

Thank you all for making an incredibly useful library; this has some of the best support and maintenance I've seen in an open-sourced project.

[ibc]

Yeah, we have it in the mediasoup website: https://mediasoup.org/documentation/publications/ :)

Thanks a lot.

[ibc]

Maybe tomorrow.