Tests that user is only prompted once per device in the current browsing context.

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


PASS numberOfTimesGetUserMediaPromptHasBeenCalled() is 0

** Request an audio-only stream, the user should be prompted **
PASS navigator.mediaDevices.getUserMedia({audio:true}).then(gotStream1); did not throw exception.
PASS numberOfTimesGetUserMediaPromptHasBeenCalled() is 1
PASS stream.getAudioTracks().length is 1
PASS stream.getVideoTracks().length is 0

** Request a video-only stream, the user should be prompted **
PASS navigator.mediaDevices.getUserMedia({video:true}).then(gotStream2); did not throw exception.
PASS numberOfTimesGetUserMediaPromptHasBeenCalled() is 2
PASS stream.getAudioTracks().length is 0
PASS stream.getVideoTracks().length is 1

** Request a stream with video and audio, the user should not be prompted again **
PASS navigator.mediaDevices.getUserMedia({audio:true, video:true}).then(gotStream3); did not throw exception.
PASS numberOfTimesGetUserMediaPromptHasBeenCalled() is 2
PASS stream.getAudioTracks().length is 1
PASS stream.getVideoTracks().length is 1

PASS successfullyParsed is true

TEST COMPLETE