Always auto turn to audio-only in testQuality when reaching ending of the testing, bring error of result

[vincecao]

OS: MacOS, Windows, iPadOS, iOS
Facing Issue Browsers: Chrome[83.0.4103.116], Edge(chromium)[85.0.545.0], Safari in iPadOS[14.0]
Working Browsers: Safari[13.1.1] in MacOS, Safari in iOS[13.5.1]
Dependency: opentok-network-test-js, version "2.3.0"
Potential bug: testQuality can not stop correctly

Hi,

I am try to work around with both sample webpack application and the Readme code snippet. I found when the timeout or stop() is trigged in testQuality, there is always a chance(3/5 or more) that only turn phase from audio-video to audio-only in testQuality stats. And then raise an alert Invalid state transition: Event 'disconnect' not possible in state 'disconnected' in the console.

The sample bundled javascript also came with the same result by showing the strange waves after the timeout. Then raise same alert Invalid state transition: Event 'disconnect' not possible in state 'disconnected' in the console.

Due to this bug, the result of testing quality will bring as an error result for both audio and video.

Is any help can provide with testQuality()?

Thank you.