Update --show-stdout / --show-stderr help text to reflect LLM-aware default

[Amaury Levé (Evangelink)]

Follow-up from #8771 / fixes#8772.

When an LLM/AI agent environment is detected, the defaults for --show-stdout and --show-stderr flip from All to Failed (see TerminalOutputDevice.GetShowOutputMode). The option descriptions in PlatformResources.resx still hard-coded Default is 'All'. though, so agents invoking --help saw misleading guidance about the very default that was changed for their benefit.

Changes

• Updated TerminalShowStdoutOptionDescription and TerminalShowStderrOptionDescription in PlatformResources.resx to:

  Valid values are 'All', 'Failed', 'None'. Default is 'All' (or 'Failed' when an LLM/AI agent environment is detected).

• Regenerated the 13 XLF localization files via dotnet msbuild .../Microsoft.Testing.Platform.csproj /t:UpdateXlf.

• Updated the wildcard / regex expectations in:

  • test/IntegrationTests/Microsoft.Testing.Platform.Acceptance.IntegrationTests/HelpInfoTests.cs
  • test/IntegrationTests/Microsoft.Testing.Platform.Acceptance.IntegrationTests/HelpInfoAllExtensionsTests.cs
  • test/IntegrationTests/MSTest.Acceptance.IntegrationTests/HelpInfoTests.cs

Validation

Locally green on net8.0 / net10.0 / net462:

• HelpInfoTests (21 tests) — passed
• HelpInfoAllExtensionsTests (9 tests) — passed
• MSTest HelpInfoTests (6 tests) — passed

[Copilot]

Pull request overview

Updates Microsoft.Testing.Platform’s CLI help text for --show-stdout / --show-stderr so it accurately describes the LLM/AI-aware default behavior introduced in #8771, and keeps the help/info acceptance tests and localized resources in sync.

Changes:

• Updated the two terminal option description resource strings to document the conditional default (All, or Failed in detected LLM/AI agent environments).
• Regenerated all 13 localized XLF files for the updated resources.
• Updated help/info acceptance test expectations (including regex escaping where needed for the --info output).

Show a summary per file

File	Description
test/IntegrationTests/MSTest.Acceptance.IntegrationTests/HelpInfoTests.cs	Updates expected --help output text for --show-stdout / --show-stderr.
test/IntegrationTests/Microsoft.Testing.Platform.Acceptance.IntegrationTests/HelpInfoTests.cs	Updates expected --help and --info outputs (regex-escaped) for the revised option descriptions.
test/IntegrationTests/Microsoft.Testing.Platform.Acceptance.IntegrationTests/HelpInfoAllExtensionsTests.cs	Updates expected --help and --info outputs (with all extensions) for the revised option descriptions.
src/Platform/Microsoft.Testing.Platform/Resources/PlatformResources.resx	Updates the canonical English resource strings for the two option descriptions.
src/Platform/Microsoft.Testing.Platform/Resources/xlf/PlatformResources.cs.xlf	Regenerated localization file reflecting updated source strings (marked for review).
src/Platform/Microsoft.Testing.Platform/Resources/xlf/PlatformResources.de.xlf	Regenerated localization file reflecting updated source strings (marked for review).
src/Platform/Microsoft.Testing.Platform/Resources/xlf/PlatformResources.es.xlf	Regenerated localization file reflecting updated source strings (marked for review).
src/Platform/Microsoft.Testing.Platform/Resources/xlf/PlatformResources.fr.xlf	Regenerated localization file reflecting updated source strings (marked for review).
src/Platform/Microsoft.Testing.Platform/Resources/xlf/PlatformResources.it.xlf	Regenerated localization file reflecting updated source strings (marked for review).
src/Platform/Microsoft.Testing.Platform/Resources/xlf/PlatformResources.ja.xlf	Regenerated localization file reflecting updated source strings (marked for review).
src/Platform/Microsoft.Testing.Platform/Resources/xlf/PlatformResources.ko.xlf	Regenerated localization file reflecting updated source strings (marked for review).
src/Platform/Microsoft.Testing.Platform/Resources/xlf/PlatformResources.pl.xlf	Regenerated localization file reflecting updated source strings (marked for review).
src/Platform/Microsoft.Testing.Platform/Resources/xlf/PlatformResources.pt-BR.xlf	Regenerated localization file reflecting updated source strings (marked for review).
src/Platform/Microsoft.Testing.Platform/Resources/xlf/PlatformResources.ru.xlf	Regenerated localization file reflecting updated source strings (marked for review).
src/Platform/Microsoft.Testing.Platform/Resources/xlf/PlatformResources.tr.xlf	Regenerated localization file reflecting updated source strings (marked for review).
src/Platform/Microsoft.Testing.Platform/Resources/xlf/PlatformResources.zh-Hans.xlf	Regenerated localization file reflecting updated source strings (marked for review).
src/Platform/Microsoft.Testing.Platform/Resources/xlf/PlatformResources.zh-Hant.xlf	Regenerated localization file reflecting updated source strings (marked for review).

Copilot's findings

• Files reviewed: 17/17 changed files
• Comments generated: 0

[Amaury Levé (Evangelink)]

Expert Review — PR #8797: Update --show-stdout / --show-stderr help text to reflect LLM-aware default

✅ 21/21 dimensions clean — no findings.

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Dimension Assessment

#	Dimension	Verdict
1	Algorithmic Correctness	✅ N/A — no logic changed
2	Threading & Concurrency	✅ N/A — no shared state touched
3	Security & IPC Contract Safety	✅ N/A
4	Public API & Binary Compatibility	✅ N/A — no API surface changed
5	Performance & Allocations	✅ N/A
6	Cross-TFM Compatibility	✅ N/A
7	Resource & IDisposable Management	✅ N/A
8	Defensive Coding at Boundaries	✅ N/A
9	Localization & Resources	✅ LGTM — .resx updated; all 13 XLF files regenerated via dotnet msbuild /t:UpdateXlf, not manually edited; <source> blocks updated and stale <target> state correctly demoted to needs-review-translation in each locale (cs, de, es, fr, it, ja, ko, pl, pt-BR, ru, tr, zh-Hans, zh-Hant).
10	Test Isolation	✅ N/A
11	Assertion Quality	✅ LGTM — test literals match the new string exactly; the one location that uses regex matching (HelpInfoTests.cs ~line 287) correctly escapes the parentheses as \( and \).
12	Flakiness Patterns	✅ N/A
13	Test Completeness & Coverage	✅ LGTM — all three help-info test files updated: HelpInfoTests.cs (MTP), HelpInfoAllExtensionsTests.cs (MTP), HelpInfoTests.cs (MSTest). Both the short-form help block and the verbose diagnostic block (--list-tests style) are covered.
14	Data-Driven Test Coverage	✅ N/A
15	Code Structure & Simplification	✅ N/A
16	Naming & Conventions	✅ N/A
17	Documentation Accuracy	✅ LGTM — new text accurately reflects TerminalOutputDevice.GetShowOutputMode behavior: default is All, flips to Failed when LLM/AI agent environment detected. Wording is concise and correct.
18	Analyzer & Code Fix Quality	✅ N/A
19	IPC Wire Compatibility	✅ N/A
20	Build Infrastructure & Dependencies	✅ N/A
21	Scope & PR Discipline	✅ LGTM — single concern: string update + XLF regeneration + test expectations. No mixed refactoring. References #8771 and fixes #8772.

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Notes

• The needs-review-translation state in the XLF files is the correct XLIFF lifecycle state for "source changed, translation pending re-review." No action needed beyond what the localization pipeline will handle automatically.
• The parentheses-escaping difference between test files is intentional: files that use Contains or verbatim string matching use literal (); files that use regex matching escape to \(\). Both are correct for their respective assertion styles.

Generated by Expert Code Review (on open) for issue #8797 · sonnet46 1.8M