This is needed because from previous calls of callControlsView.outgoingAudioToggle() in previous tests, the button could have 'active' class and 'Unmute microphone' title on the anchor (which is correct), but before each test the 'active' class is removed which leads to the button not having the 'active' class, but the title 'Unmute microphone' (which is not correct).
Another possible solution is to move this test first.