Intro

My notes on using this open source tool for unit testing C# work

Documentation

• NUnit Documentation Site

• Introduction To NUnit Testing Framework - Has a good step-by-step example using Visual Studio.

• Unit testing C# with NUnit and .NET Core - A tutorial on unit testing - Example using dotnet CLI.

  • Using NUnit Example - My notes on following the above example.

Installation

If you create a unit test project with the Test Generator NUnit extension or dotnet new nunit, then the needed references and packages will be downloaded and set up for you. See example: Using NUnit Example

Another way to install is via NuGet packages. After creating a project, you can add the needed NuGet dependencies (for more info on using Visual Studio’s NuGet Package Manager see here):

Open

These are the 3 packages you need to add.

Open

Tips And Tidbits

• There is a Visual Studio extension (Test Generator NUnit extension) that automates the creation of a unit test project, following some standard naming conventions.

• The [TestFixture] attribute denotes a class that contains unit tests.

  • There should only be one TestFixture per file and it should correspond to one class (per file) in your application.

• The [Setup] attribute indicates a method that will be run BEFORE each test.

• A [TearDown] attribute indicates a method to be run AFTER each test is executed.

• The [Test] attribute indicates a method is a test method.

•  A [TestCase] attribute is used to create a suite of tests that execute the same code but have different input arguments.

  • You can pass parameters like so: [TestCase(parameter)] 

Cheat Sheets

From Automate the Planet:

Open