using System;

using System.Collections.Generic;

using System.Web;

using System.Linq;

​

public class Program

{

    public static void Main()

    {

        new UnitTests().PerformUnitTest();

    }

}

​

// INSTRUCTIONS:

​

// The CustomerValidator class retrieves a value from the current HttpContext,

// uses that value to pull a record from the database, plus makes an API call.

​

// Refactor CustomerValidator so that the PerformUnitTest() method can execute 

// without interacting with any of these external services.  GetCustomerAndValidateZip()

// must still interact with all these services when run in the context of the

// host application.

​

// Adjust the unit test so that it tests one good zip code and one bad one,

// resulting in two "PASS" lines in the console.

​

// Focus on what needs to change in CustomerValidator() and UnitTests():

// changes to the other classes would be expected in real life, but are not

// necessary for this activity.

public class UnitTests

{   

    public void PerformUnitTest()

    {

        //var sut = new CustomerData("fname", "lname", 1.20m, 2, 1.50m, 5);

        CustomerData sut = new CustomerData {

            FirstName = "first",

            LastName = "last",

            NumKWH = 1.20m,

            AccNo = 2,

            rate = 1.50m,

            fr = 5

        };

​

        var expected = (5.0m * 5.0m) + 5;

        var actual = sut.CalculateCharge(5.0m, 5.0m, 5);

        var result = expected == actual ? "PASS" : "FAIL";

        Console.WriteLine(result);

    }

}

​

public class CustomerData

  {

        private string firstName;

        public string FirstName

        {

            get { return firstName; }

            set { firstName = value; }

        }

        private string lastName;

        public string LastName

        {

            get { return lastName; }

            set { lastName = value; }

        }

        private int accNo;

        public int AccNo

        {

            get { return accNo; }

            set { accNo = value; }

        }

        private decimal numKWH;

        public decimal NumKWH

        {

            get { return numKWH; }

            set { numKWH = value; }

        }

​

        public decimal BillAmount { get; set; }

​

        public decimal rate { get; set; }

        public int fr { get; set; }

​

​

       public CustomerData(){}

        //Constructor to pass on information

        public CustomerData(string fname, string lname, decimal kwh, int acc, decimal rate, int fr)

        {

            FirstName = fname;

            LastName = lname;

            NumKWH = kwh;

            AccNo = acc;

            BillAmount = CalculateCharge(kwh, rate, fr);

        }

​

        //method to calculate the charge

        public decimal CalculateCharge(decimal kwh, decimal rate, int fr)

        {

            decimal kwhTotal;

            kwhTotal = (kwh * rate) + fr;

            return kwhTotal;

        }

}

​