How to trigger Navigator.pop()

Question

so I am using Flutter v2.10.3 and writting some integration tests. I have a button and it does some http requests and some other things and when everything is done it does a Navigator.pop(). When using on an emulator or a real device, everything works great but in my test after tapping the button nothing happens. I've put an await tester.pumpAndSettle(const Duration(seconds: 20)); to try to wait for the frames to render but nothing happens. Here is a video recording for better understanding