How to write tests using the service scope

Question

My app is accessing object from the service scope (package:gcloud/service_scope.dart), like the storageService and additional services that I put inside the scope with ss.register().

Now I want to unit test a function that accesses this scope, and uses mock objects that I want to put in the service scope.

Is the only way to do so, to register them for every test, like this:

var withServiceScope = (callback()) => ss.fork(() {
  // Register all services here
  return callback();
});
test('the description', () => withServiceScope(() async {
  // Call my function that can now access the service scope
}));

Or is there are way that allows me to do that in the setUp() function so I don't need to add this line for each test?

Answer 1

This might make it simpler to write your tests (code not tested)

import 'package:test/test.dart' as t;
import 'package:test/test.dart' show group;

var withServiceScope = (callback()) => ss.fork(() {
  // Register all services here
  return callback();
});

test(String description, Function testFunction) {
  t.test(description, () => withServiceScope(() async {
    testFunction();
  }));
}

main() {    
  test('the description', () async {
    // Call my function that can now access the service scope
  }));
}