Remove legacy XUnitWrapper test tree infrastructure #123110
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…without going through an xunit harness.
…standalone runner
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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
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This was referenced Jan 15, 2026
steveisok
approved these changes
Jan 30, 2026
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Now that we've moved entirely to the new test system, we can remove the old XUnitWrapper logic from the test build system and the helix publishing. This will help us be able to further evolve the test system as we will now have a baseline of 1 test running mechanism instead of 2.
To ensure compatibility with some of the community's workflows, I've added a very basic local test runner for the BuildAllTestsAsStandalone=true scenario. This scenario used to fall back on the old test runner system. With that system gone, a replacement was needed.