This is needed because from previous calls of callControlsView.outgoingAudioToggle() in previous tests, the button could be in a state with 'active' class and 'Unmute microphone message', but before each test, the 'active' class is removed. This leads to the situation in which the status of the class and the message does not correspond and the test fails.
I think that another possible solution is to put this test first.