Automated tests help keep your code working as you make changes. The two most popular .NET testing libraries are xUnit and NUnit.
🧪 xUnit
- Built-in support with .NET CLI (
dotnet new xunit) - Test methods marked with
[Fact](no parameters) or[Theory](with data)
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public class MyTests
{
[Fact]
public void Addition_Works()
{
Assert.Equal(4, 2 + 2);
}
}
🧪 NUnit
- Install with
dotnet add package NUnit - Test methods marked with
[Test]
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using NUnit.Framework;
public class MyTests
{
[Test]
public void Addition_Works()
{
Assert.AreEqual(4, 2 + 2);
}
}
🚦 Running Tests
- With xUnit:
dotnet test - With NUnit: Use NUnit console runner or via
dotnet testwith adapters
📝 Which to Use?
- xUnit is the default in .NET Core and works out of the box.
- NUnit is also popular, especially for legacy projects.
💡 Try It!
Create a test project and add some [Fact] or [Test] methods!
Next: Test organization and naming conventions!
