How to wait for an asynchronous setup in a unit test, in Dart?

Question

My unit tests require a setup that needs to run asynchronously. That is, I need to wait for the setup to finish before the tests are run, but the setup deals with Futures.

Answer 1

While the accepted answer by Seth is correct, the following example may be easier to understand and reuse. It returns a Future and performs the setup in the Future's async worker function:

setUp(() {
  return Future(() async {
    await someFuture();
    callSomeFunction();
    await anotherFuture();
  });
});

The test cases will be called after the last call to anotherFuture() returns.