- Media Streams - What happens when you share video ? - Issues in automation testing of Audio / Video features - Fake Media Streams

1. Automated Testing of Audio And Video Feature in
webRTC based Web Application
Kavit Shah

2. Topics
● Media Streams
● What happens when you share video ?
● Issues in automation testing of Audio / Video features
● Fake Media Streams
● Demo

3. Media streams
WebRTC based media streams provides the following :
● a stream of audio and video data
● the methods for working with them
● the success and error callbacks when using the data asynchronously
● the events that are fired during the process

4. What happens when you share video ?

5. Issues with Virtual Machines
If you run automation on virtual machines in the cloud, then
● VMs do not have a Microphone
● VMs do not have a webcam
● Usually, do not allow to install any third party software programmatically

6. Issues with Physical Machines
If you run on a dedicated physical machine, then
● Third party software has to be pre-installed to simulate the media streams.
● Different third party software depending on your OS (Windows, Mac,
Linux).
● Maintain and upgrade third party software.

7. Fake Media Stream

8. Limitation
● Only one fake media stream per browser
○ Can not do multiple webcam testing
○ Hence, can not simulate a machine having multiple webcams attached to it
■ Solution : Manycam

9. Useful resources
● Chromium command line options
● fake-device-media-stream
● Fake webcam testing