public async Task CountAllCompanyCustomers_Returns_Right_Number_Of_CompanyCustomers() { var CompanyCustomerMock = new Mock <IDelpinHttpClientHandler <CompanyCustomer> >(); var PrivateCustomerMock = new Mock <IDelpinHttpClientHandler <PrivateCustomer> >(); var BookingMock = new Mock <IDelpinHttpClientHandler <Booking> >(); int NumberOfCompanyCustomers = 5; CompanyCustomerMock.Setup(m => m.GetCountHttp(It.IsAny <string>(), It.IsAny <string>())) .ReturnsAsync(NumberOfCompanyCustomers); var sut = new StatisticController(Configuration(), PrivateCustomerMock.Object, CompanyCustomerMock.Object, BookingMock.Object); var countCompanyCustomers = await sut.CountAllCompanyCustomers(); Assert.Equal(NumberOfCompanyCustomers, countCompanyCustomers); }