Tests MediaStreamTrack::getSources.

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



*** calling MediaStreamTrack.getSources() ***
PASS MediaStreamTrack.getSources(gotSources1); did not throw exception.
PASS callback called.
sources1[0].sourceId = "239c24b1-2b15-11e3-8224-0800200c9a66"
sources1[0].label = "Mock audio device"
sources1[0].kind = "audio"
sources1[1].sourceId = "239c24b0-2b15-11e3-8224-0800200c9a66"
sources1[1].label = "Mock video device"
sources1[1].kind = "video"

*** calling navigator.webkitGetUserMedia() ***
PASS navigator.webkitGetUserMedia(constraints, callback, error) did not throw exception.
PASS callback called.

*** calling MediaStreamTrack.getSources() ***
PASS MediaStreamTrack.getSources(gotSources2); did not throw exception.
PASS callback called.
PASS sources2.length == sources1.length is true
PASS sources2[0].sourceId === sources1[0].sourceId is true
PASS sources2[0].label === sources1[0].label is true
PASS sources2[0].kind === sources1[0].kind is true
PASS sources2[1].sourceId === sources1[1].sourceId is true
PASS sources2[1].label === sources1[1].label is true
PASS sources2[1].kind === sources1[1].kind is true
PASS successfullyParsed is true

TEST COMPLETE