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docs(emitter-framework): Add JSDoc for testing helpers [skip chg] - #12227

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Timothee Guerin (timotheeguerin) wants to merge 1 commit into
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timotheeguerin:docs/jsdoc-framework-testing
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Timothee Guerin (timotheeguerin) wants to merge 1 commit into
microsoft:mainfrom
timotheeguerin:docs/jsdoc-framework-testing

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@timotheeguerin

@timotheeguerin Timothee Guerin (timotheeguerin) commented Oct 15, 2026 •

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Emitter tests need predictable snippet selection and clear ownership of grammar mappings, formatting, and scenario recording.

Document exact-name extraction and unsupported-query behavior, each built-in language configuration, and how the Vitest scenario harness compiles, compares, or rewrites Markdown expectations. Clarify that extraction preserves source text while formatting belongs to the harness. Documentation only.

Tracked in #12228.

@microsoft-github-policy-service microsoft-github-policy-service Bot added the emitter-framework Issues for the emitter framework label Oct 15, 2026
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npm i https://pkg.pr.new/@typespec/emitter-framework@12227

commit: 343825f

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You can try these changes here

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🟢 Approval recommended

The documentation-only changes match the implementation, with no unresolved findings.

0 open findings

What changed in this PR

Documents emitter-framework testing helpers as part of the public API JSDoc improvements, without changing runtime behavior or API signatures.

Changes:

  • Clarifies snippet matching, unsupported queries, and built-in language configurations.
  • Documents scenario compilation, formatting, comparison, and expectation recording.
File Description
packages/​emitter-framework/​src/​testing/​scenario-test/​snippet-extractor.ts Documents extraction contracts and language configurations.
packages/​emitter-framework/​src/​testing/​scenario-test/​harness.ts Documents scenario registration, execution, and recording.

🧠 Review effort: Balanced


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@timotheeguerin

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Consolidated into #12209 to keep one PR per package and at most five compiler PRs. The reviewed changes and corrections are preserved there.

Tracked in #12228.

Timothee Guerin (timotheeguerin) added a commit that referenced this pull request Oct 16, 2026
Emitter authors need usable contracts across contexts, language
components, transformations, and testing helpers, not just component
names and TypeScript signatures.

Document the public emitter framework together, including its C#,
TypeScript, and Python components. Explain defaults, supported input
shapes, transformation scope, and error filtering without changing
generated output or APIs.

Consolidates [12213](#12213),
[12220](#12220),
[12223](#12223),
[12226](#12226),
[12227](#12227).

Tracked in #12228.
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