public async Task ExpensesController_GetTeamExpensesByMember_Test() { bool called = false; var expenseRepository = new Data.Repositories.Fakes.StubIExpenseRepository(); var notificationChannelRepository = new Data.Repositories.Fakes.StubINotificationChannelRepository(); var notificationService = new Services.Fakes.StubINotificationService(); expenseRepository.GetTeamExpensesByMemberAsyncStringPictureType = (id, picture) => { called = true; return(Task.FromResult(new List <ExpenseGrouped>().AsEnumerable())); }; var target = new ExpensesController(expenseRepository, new SecurityHelper(), notificationChannelRepository, notificationService); var result = await target.GetTeamExpensesByMember(PictureType.Small); Assert.IsNotNull(result); Assert.IsTrue(called); }