The Bowling Game Kata was my first introduction to Test Driven Development. Uncle Bob wrote about it on his TheBowlingGameKata page.
This walk-through will use NUnit 3.
Write a simple class that scores a game of bowling.
Iteration 0 - The Setup
Create a class library and name the project "BowlingGame".
Before we write a line of production code, we want to have a failing test to cover it. In this example, I will be using NUnit 3 inside of a class library.
Add a new project to the Solution named "BowlingGame.Test".
After the project is created, add a class named GameTest.cs. Game is the name of the class we will be testing, and "Test" is just a suffix that I like to add to the end of tests.
Now add the [TestFixture] attribute to the top of GameTest.
Adding the TestFixture attribute causes a compile-time error. To fix it, we need to bring in the NUnit 3 package using NuGet.
Now that you added NUnit, you can add the using statement for the NUnit.Framework namespace.