MockNavigationObserver

[ShivamMattoo33]

Hi I am trying to add a test to Navigate from one page to another and hence am using NavigationObserver
But I am unable to make it work as it says
registerFallbackValue was not previously called to register a fallback value for Route<dynamic>flutter.
Could you Please give a sample test for this scenario

[felangel]

Hi @ShivamMattoo33 👋
Thanks for opening an issue!

You can do something like:

class FakeRoute<T> extends Fake implements Route<T> {}

void main() {
  setUpAll(() {
    registerFallbackValue(FakeRoute());
  });

  ...
}

You might also want to check out mockingjay which is intended to make mocking navigation easier and uses mocktail internally. 👍

Closing for now but let me know if you are still having trouble and I'm happy to continue the conversation 😄