public void GetCustomerIdTest(string emailId)
{
//Arrange
mockBllCustomerDetails.Setup(x => x.GetCustomerID(It.IsAny <string>())).Returns(emailId);
mockCRMCustomerDetails.Setup(x => x.GetCustomerIDAsync(It.IsAny <string>())).Returns(customerData.GetCustomerDataPositive());
//Act
customerDetails.GetCustomerID(emailId);
//Assert
mockCRMCustomerDetails.VerifyAll();
}