Update dependency NUnit.Analyzers to 4.12.0

[dependencyupdates]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
NUnit.Analyzers	4.11.2 → 4.12.0

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Release Notes

nunit/nunit.analyzers (NUnit.Analyzers)

v4.12.0: NUnit Analyzers 4.12 - March 3, 2026

Compare Source

NUnit Analyzers 4.12 - March 3, 2026

This release of the NUnit Analyzers improves NUnit1029 to account for TestCaseSource
support for params and optional arguments. It also introduces a new analyzer for incorrect
usage of Is.Not.Null.Or.Empty, fixes regressions in NUnit2005 and NUnit2055, and updates
NUnit package dependencies.

The release contains contributions from the following users (in alphabetical order):

• @​Dreamescaper
• @​manfred-brands
• @​mikkelbu
• @​nowsprinting
• @​philipp-naused
• @​stevenaw

Issues Resolved

Features and Enhancements

• #​957 Relax NUnit1029 for TestCaseSource where method accepts a single "params" array
• #​189 Warning when Is.Not.Null.Or.Empty used

Bugs

• #​953 Code fix for NUnit2055 can generate invalid code for classic asserts
• #​952 Code fix for NUnit2005 tries to use Is.Empty constraint on incompatible types.

Tooling, Process, and Documentation

• #​973 chore: Bump NUnit version
• #​970 chore: Bump NUnit to version 4.5.0
• #​967 Fix note about works with Unity Test Framework
• #​937 chore: bump version

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