public void GetCustomerVerificationTest(string customerId)
{
//for Moq test
//Arrange
mockBllCustomerDetails.Setup(x => x.GetCustomerVerificationData(It.IsAny <string>())).Returns(customerData.GetBLLVerificationData());
mockCRMCustomerDetails.Setup(x => x.GetCustomerVerificationData(It.IsAny <string>())).Returns(customerData.GetCRMVerificationData());
//Act
customerDetails.GetCustomerVerificationData(customerId);
//Assert
mockCRMCustomerDetails.VerifyAll();
}