public void GetCustomerProfileDataTest(string customerId) { //Arrange mockBllCustomerDetails.Setup(x => x.GetCustomerProfileData(It.IsAny <string>())).Returns(customerData.GetBLLProfileData()); mockCRMCustomerDetails.Setup(x => x.GetCustomerProfileData(It.IsAny <string>())).Returns(customerData.GetCRMProfileData()); //Act customerDetails.GetCustomerProfileData(customerId); //Assert mockCRMCustomerDetails.VerifyAll(); }