Undocumented attributes

[OsirisTerje]

I did a check on the source code and the docs repo on attributes, and got this list of attributes that have not been documented:

NUnit Attributes Missing Documentation

Generated: 2026-03-28

This document lists NUnit attributes that exist in the source code but do not have dedicated documentation pages in the docs repo (docs/articles/nunit/writing-tests/attributes/).

Summary

The docs repo has 48 documented attributes. Most core attributes are well documented, but these newer NUnit 4.x attributes need documentation pages.

Attributes Needing Documentation

Attribute	Priority	Source File	Notes
NetPlatformAttribute	HIGH	Attributes/NetPlatformAttribute.cs	Modern replacement for PlatformAttribute, uses .NET-style platform names
NoTestsAttribute	MEDIUM	Attributes/NoTestsAttribute.cs	Controls status of parameterized tests with no child tests
UnhandledExceptionHandlingAttribute	MEDIUM	Attributes/UnhandledExceptionHandlingAttribute.cs	Controls handling of exceptions on background threads
TestCaseAttribute<T> (generics)	MEDIUM	Attributes/TestCaseAttribute.cs:370-434	Generic versions need documenting in testcase.md
TestAssemblyDirectoryResolveAttribute	LOW	Attributes/TestAssemblyDirectoryResolveAttribute.cs	Specialized for mixed-mode assembly resolution

Checklist

High Priority

• NetPlatformAttribute - Create netplatform.md
  • Modern replacement for PlatformAttribute
  • Uses TargetFramework-based platform names (e.g., windows, linux, osx)
  • See: https://learn.microsoft.com/en-us/dotnet/fundamentals/code-analysis/quality-rules/ca1416

Medium Priority

• NoTestsAttribute - Create notests.md

  • Indicates the default status of a parameterized test method or fixture with no executable child tests
  • Example: [NoTests(TestStatus.Skipped)]

• UnhandledExceptionHandlingAttribute - Create unhandledexceptionhandling.md

  • Controls handling of unhandled exceptions in tests
  • Modes: Error (default), Ignore
  • Important for tests that spawn threads or have async operations

• TestCaseAttribute<T> - Update testcase.md

  • Document generic syntax: [TestCase<int, string>(42, "answer")]
  • Covers variants with 1-5 type parameters

Low Priority

• TestAssemblyDirectoryResolveAttribute - Create testassemblydirectoryresolve.md
  • Marks assembly as needing special assembly resolution
  • Used for mixed-mode assembly scenarios

Already Documented (in extending-nunit section)

These attributes are documented but not in the main attributes folder:

• ExecutionHookAttribute - extending-nunit/Execution-Hooks.md
• TestActionAttribute - extending-nunit/Action-Attributes.md

Deprecated (adequately documented)

• DatapointsAttribute - Mentioned as obsolete in datapointsource.md

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