The C# GdUnit4 Analyzers

What is GdUnit4.Analyzer

GdUnit4.Analyzer is a Roslyn-based analyzer package designed to enhance the development experience when writing tests with GdUnit4. It provides compile-time validation for GdUnit4 test attributes and helps developers catch configuration errors early in the development process.

Features

The analyzer must be included by referencing the gdUnit4.analyzer package:

<PackageReference Include="gdUnit4.api" Version="5.0.0"/>
<PackageReference Include="gdUnit4.test.adapter" Version="3.0.0"/>
<PackageReference Include="gdUnit4.analyzers" Version="1.0.0">
  <PrivateAssets>all</PrivateAssets>
  <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
</PackageReference>

• Attribute Validation: The analyzer enforces correct usage of GdUnit4 test attributes

  Example: DataPoint and TestCase Combination Validation

  Validates proper combination of DataPoint and TestCase attributes:

  // ✅ Valid: Single TestCase with DataPoint
  [TestCase]
  [DataPoint(nameof(TestData))]
  public void ValidTest(int a, int b) { }
  
  // ❌ Invalid: Multiple TestCase with DataPoint
  [TestCase]
  [TestCase]                         // GdUnit0201 error: Method 'InvalidTest' cannot have multiple TestCase attributes when DataPoint attribute is present
  [DataPoint(nameof(TestData))]
  public void InvalidTest(int a, int b) { }
  

Related Packages

• gdUnit4.api - The core testing framework
• gdUnit4.test.adapter - Run your tests in Visual Studio, VS Code, and JetBrains Rider with filtering support

Technical Details

The analyzer is built using:

• .NET Standard 2.0
• Roslyn Analyzer Framework
• Microsoft.CodeAnalysis.CSharp

Documentation

For more detailed documentation about the entire GdUnit4 ecosystem, visit our documentation site.

You are welcome to

• Give Feedback
• Suggest Improvements
• Report Bugs

License

This project is licensed under the MIT License - see the LICENSE file for details.