Test enabling/disabling mock media capture devices

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".


*** Mock capture devices should be enabled by default
PASS mediaStream is an instance of Object
PASS mediaStream.getTracks().length is 2

*** Disable mock capture devices
internals.setMockMediaCaptureDevicesEnabled(false)
PASS mediaDevices.getUserMedia() failed with NotReadableError

*** Enable mock capture devices
internals.setMockMediaCaptureDevicesEnabled(true)
PASS mediaStream is an instance of Object
PASS mediaStream.getTracks().length is 2
PASS successfullyParsed is true

TEST COMPLETE