agentic-dev/react.md at 6606b59d1e900d080663cb94104c20c19e722bf4

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Danijel Martinek 1108e24ea0 chore(deps): backfill library traces for un-cited cluster

Add approved trace files for payload, @trpc/server, @trpc/client, zod,
superjson, @payloadcms/db-postgres, @payloadcms/richtext-lexical, globals,
react, react-dom, vitest, @tanstack/react-query, and all @testing-library/*
packages. All traces dated 2026-05-14, decision: approved, adr: null.

Establishes the baseline so the pre-commit library-decisions gate is
additive (new deps require traces) rather than disruptive (old deps fail
immediately). All 34 trace files pass validateTrace() from schema.mjs.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

2026-05-14 10:10:23 +00:00

3.0 KiB

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package, version, tier, decision, date, deciders, adr, filter-results, verification-commands, accepted-cves

package

version

tier

decision

date

deciders

adr

filter-results

verification-commands

accepted-cves

@testing-library/react

^16.0.0

core

approved

2026-05-14

Danijel Martinek

null

license	types	maintenance	boundary-fit	shadow-check	eu-residency	cve-scan	named-consumer
MIT	native	active	pass	pass	n/a	clean	pass

npm view @testing-library/react license

npm view @testing-library/react version

pnpm audit --audit-level=moderate

Filter: license

npm view @testing-library/react license returns MIT. MIT is on the allowlist.

Filter: types

@testing-library/react ships its own TypeScript declaration files. No separate @types/ package is needed.

Filter: maintenance

Actively maintained by the Testing Library organization. The 16.x line targets React 19. Regular releases; strong community and ecosystem adoption.

Filter: boundary-fit

@testing-library/react is a dependency of @repo/core-testing, the workspace's shared testing infrastructure. It provides render, screen, fireEvent, and related utilities for component tests. Feature packages that test UI components use these utilities via core-testing. This is the correct placement for shared test infrastructure.

Filter: shadow-check

@testing-library/react is the sole React component testing utility in the workspace. No competing library (Enzyme, React Test Renderer) is present.

Filter: eu-residency

@testing-library/react is a test utility library with no network communication. EU residency does not apply.

Filter: cve-scan

pnpm audit --audit-level=moderate reports no advisories against @testing-library/react at the time of this trace.

Filter: named-consumer

@repo/core-testing uses @testing-library/react to provide the render utility and screen query API for component tests. Feature packages with UI components use these via core-testing. Named, non-hypothetical consumer exists today.

Prompt: replaces

@testing-library/react replaces Enzyme and React Test Renderer. Testing Library's philosophy of testing from the user's perspective (querying by role, label, text) produces more resilient tests than implementation-detail-aware approaches.

Prompt: migration-cost-out

Hard. render, screen, fireEvent, and userEvent APIs from Testing Library are used in all component tests. Migrating to a different testing approach requires rewriting all component tests and changing the query strategy (from accessibility-tree queries to DOM selectors or component internals).

Prompt: alternatives-considered

Enzyme — Deprecated and no longer maintained for React 18+; Testing Library is the ecosystem standard.
react-dom/test-utils — Lower-level API without the accessibility-query helpers; more verbose and less idiomatic for testing user behavior.

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