act() method warning in tests

[StefanZivkovic]

In my test every call of fireevent.change or fireevent.blur i have wrapped with

await act(async () => {
   fireEvent.blur(streetAddress);
});

Anyhow, i keep getting warning after test execution:

  When testing, code that causes React state updates should be wrapped into act(...):
    act(() => {
      /* fire events that update state /  
    }); 
    / assert on the output */```
    

Is someone willing to explain?

[gnapse]

This is not a jest-dom issue. jest-dom is not tied to react or has anything to do with it. The fireEvent utility is from @testing-library/react and ultimately from @testing-library/dom. You should really request help about this in those libraries' help/support channels.

That being said, it would be helpful to have a way to reproduce your problem for others to better be able to help you. It would go a long way if you extracted a minimal app example with tests reproducing the problem. For example, in codesandbox.