Lambda Support to tidy up expectations

[sazzer]

Currently, when you write expectations you've got to deal with the fact that the signatures could throw. This means that your test methods need to indicate all of these exceptions even if they will never happen.

Java 8 Lambdas could ease this. For example:

EasyMock.expect(() -> {
    EasyMock.expect(target.callThatThrows())
        .andThrow(new Exception());
});

You could even extend this to do a Replay at the end of the lambda for all the mocks that were configured in it.

[henri-tremblay]

Hi. Yes. This is the kind of things that are interesting to dig in. Not for the expectation directly but in a BDD style I think.

Easymock.given(() -> {
   expect(target.callThatThrows()).andThrow(new Exception());
}
EasyMock.when(() -> {
   testedCall.doSomething();
});
EasyMock.then(() -> {
});

Making the replay and verify implicit.

However, I don't have much bandwidth these days. If you would like to collaborate, that would be awesome.

Right now, if you want to implement your example, you can have your own EasyMockUtil class with

  public static <T> IExpectationSetters<T> expect(Callable<T> value) {
    try {
      return EasyMock.expect(value.call());
    } catch (Exception e) {
      throw new AssertionError(e); // will never ever happen
    }
  }