Converge custom xUnit test helpers with Microsoft.DotNet.XUnitExtensions#7059

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Copilot wants to merge 16 commits intomainfrom

copilot/converge-xunit-extensions

Commits on Nov 20, 2025

Initial plan
Copilot
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Add Microsoft.DotNet.XUnitExtensions and create TestConditions helper

Copilot
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adamsitnik
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Migrate test files to use Microsoft.DotNet.XUnitExtensions

Copilot
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adamsitnik
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Add Microsoft.DotNet.XUnitExtensions to CPM and fix remaining test files

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adamsitnik
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Remove TestUtilities project - migration complete

Copilot
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adamsitnik
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Address code review feedback - use PlatformSpecific with negation and fix ConditionalTheory

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adamsitnik
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Fix build scripts and remove duplicate platform attributes

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adamsitnik
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Fix StyleCop using directive ordering and incorrect Theory/Fact mappings

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adamsitnik
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Revert hallucinated changes and fix FakePerformanceCounter

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adamsitnik
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Fix StyleCop SA1210 using directive ordering errors

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adamsitnik
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Commits on Nov 21, 2025