Unit test with moq framework

FakeItEasy.cs

[Test]
public void Run_With_InboxMessages_Should_Call_Repo_Save()
{
    //Arrange
    var apiConfig = new ApiConfig();
    apiConfig.SetCommPort(new CommPort());

    var fakeApi = A.Fake<ISmsApi>();
    var fakeLogging = A.Fake<ILogging>();
    var fakeOutgoingsmsRepo = A.Fake<ISmsOutgoingRepository>();
    var fakeIncomingsmsRepo = A.Fake<ISmsIncomingRepository>();

    var inbox = new List<InboxMessage> {new InboxMessage()};

    //Act
    A.CallTo(() => fakeApi.GetInboxMessages(A<Action<ICollection<InboxMessage>, SmsServiceException>>.Ignored))
     .Invokes(call =>
         {
             var action = ((Action<ICollection<InboxMessage>, SmsServiceException>) call.Arguments.First());
             action(inbox, null);
         });

    A.CallTo(() => fakeApi.ModemReady).Returns(true);
    A.CallTo(() => fakeApi.IsModemReady(A<Action<bool, string>>.Ignored)).Invokes(call =>
        {
            var action = ((Action<bool, string>) call.Arguments.First());
            action(true, "");
        });

    var smsServer = new SmsServer(fakeApi, apiConfig, fakeOutgoingsmsRepo, fakeIncomingsmsRepo, fakeLogging);
    smsServer.Run();

    //Assert
    A.CallTo(() => fakeApi.IsModemReady(A<Action<bool, string>>.Ignored)).MustHaveHappened();
    A.CallTo(() => fakeIncomingsmsRepo.Add(A<IncomingSms>.Ignored)).MustHaveHappened();
}