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Refactor: Split Assert.AreEquivalent.Comparer.cs (1248 lines) into focused files

refactoring

Status: Open.

#8332 In microsoft/testfx;

· Evangelink opened on May 18, 2026

[Parent] Breaking changes planned for MSTest 5.0 / MTP 3.0

Breaking ‼️

Status: Open.

#8327 In microsoft/testfx;

· Evangelink opened on May 18, 2026

[dnceng-bot] Branch testfx/main can't be mirrored to Azdo fast forward branch

Needs: Triage 🔍

Status: Open.

#8324 In microsoft/testfx;

· dotnet-maestro-bot opened on May 18, 2026

Flaky test: TestMethodThreading_MainIsSTAThread_OnWindows_NoRunsettingsProvided_ThreadIsSTA fails reliably on Windows Debug

Status: Open.

#8313 In microsoft/testfx;

· Evangelink opened on May 18, 2026

[Efficiency Improver] perf: eliminate LINQ closure allocations in TreeNodeFilter hot paths

agentic-workflows

automation

efficiency

green-software

Status: Open.

#8305 In microsoft/testfx;

· Evangelink opened on May 17, 2026

[Parent] Assertion message quality and clarity improvements

Area: Assertion

Status: Open.

#8304 In microsoft/testfx;

· Evangelink opened on May 17, 2026

[Test Improver] Add unit tests for ResponseFileHelper.SplitCommandLine

agentic-workflows

automation

testing

Status: Open.

#8300 In microsoft/testfx;

· Evangelink opened on May 17, 2026

[aw] Code Simplifier failed

agentic-workflows

Status: Open.

#8289 In microsoft/testfx;

· Evangelink opened on May 16, 2026

Proposal: capture assertion call-site (file/line/member) on AssertFailedException

Area: Assertion

Discussion

enhancement

Needs: DesignNeeds research and proposal for how the feature will be implemented.Needs research and proposal for how the feature will be implemented.

Status: Open.

#8279 In microsoft/testfx;

· Evangelink opened on May 16, 2026

Add [StackTraceHidden] to all Assert/CollectionAssert/StringAssert APIs (post-RFC 012)

Area: Assertion

enhancement

Status: Open.

#8277 In microsoft/testfx;

· Evangelink opened on May 16, 2026

[Test Improver] Add unit tests for ResponseFileHelper.SplitCommandLine

agentic-workflows

automation

testing

Status: Open.

#8274 In microsoft/testfx;

· Evangelink opened on May 16, 2026

[Parent] Issue Arborist - Issue Group

Area: Assertion

Status: Open.

#8228 In microsoft/testfx;

· Evangelink opened on May 14, 2026