saoud / palindromes-csharp Goto Github PK

These setup instructions follow Week 1, Test-Driven Development with C# from Epicodus's C# and .Net curriculum

Setting up project from scratch

MSTest Configuration and Setup

After running dotnet restore and generating obj directories. In root directory: touch .gitignore and add to file */obj/

MSTest Writing and Running Tests

After setup, navigate to TDDcsharp.Tests and run dotnet test Tests will pass, even without testing code, because it didn't receive any compiler errors.

add */bin/ to .gitignore. Generated after running dotnet test

Our First Tests with MSTest

Following "Red, Green, Refactor" Workflow, test for isCar was added in this order:

1. Identify the simplest possible behavior the program must exhibit"

my notes: "If string equals "car" return boolean true"

2. Write a coded test

ModelTests/CarDealership.cs Note: Typo from previous commit. Change "public class CarDealership" to "public class CarDealershipTest

    [TestClass]
    public class CarDealershipTests
    {
        [TestMethod]
        public void isCar_StringEqualCar_True()
        {
            CarDealership testCarDealership = new CarDealership();
            Assert.AreEqual(true, testCarDealership.isCar("car"));
        }
    }

TDDcsharp/Models/CarDealership.cs (Nothing has changed. No code added yet)

    public class CarDealership
    {
        public bool isCar(string car)
        {
            return false;
        }
    }

3. Confirm Test Fails

Navigate to TDDcsharp.Tests and run dotnet test test should fail - this is a good fail - Expected:. Actual: a compiler error is not a fail.

4. Implement the behavior with the least amount of code possible

TDDcsharp/Models/CarDealership.cs

    public class CarDealership
    {
        public bool isCar(string car)
        {
            return car == "car";
        }
    }

5. Confirm the test passes

Navigate to TDDchsarp.Tests and run dotnet test

6. Confirm previous tests still pass N/A no previous tests at the moment so moving on.

7. Check for refactoring Looks as DRY as it can be at the moment. Moving on.

8. Repeat There is probably more that we could use to define a car. Such as, "4 wheels", "steering wheel", "brakes"

9. Identify the simplest possible behavior the program must exhibit"

my notes: 
"If string equals "car" return boolean true"
"Other things makeup a car. If strings equals any of "car", "4 wheels", "steering wheel", "brakes" return boolean true

2. Write a coded test

ModelTests/CarDealership.cs

    [TestClass]
    public class CarDealershipTests
    {
        [TestMethod]
        public void isCar_StringEqualCar_True()
        {
            CarDealership testCarDealership = new CarDealership();
            Assert.AreEqual(true, testCarDealership.isCar("car"));
        }

        [TestMethod]
        public void isCar_StringNotEqualCarThings_False()
        {
            CarDealership testCarDealership = new CarDealership();
            Assert.AreEqual(false, testCarDealership.isCar("horse"));
        }
    }

3. Confirm test fails yes it does "car does not equal "horse"

4. Implement the behavior with the least amount of code possible

    public class CarDealership
    {
        public bool isCar(string car)
        {
            string[] whatIsCarArray = {"car", "4 wheels", "brakes", "steering wheel"};
            
            foreach (string carThing in whatIsCarArray)
            {
                if(car == carThing)
                {
                    return true;
                }
            }
            return false;
        }
    }

5. Confirm the test passes

Navigate to TDDchsarp.Tests and run dotnet test

6. Confirm previous tests still pass isCar_StringEqualCar_True() changed name to isChar_StringEqualCarThing_True() test too with other things that should be true like "4 wheels" run test again confirm passes

7. Check for refactoring Looks Dry but perhaps a way to loop over the first test so I don't have to add each thing at a time to test or repeat myself with lots of tests. Will leave as is for now since the array of things that define a car is fixed and confident if one string works then the rest will work

8. Repeat What else can go in my car dealership?