agentic-dev/react.md at 3d52f2de85abc9a4e88aceacf4622df8b3440e4a

Template

Files

Danijel Martinek f77e6ea881 chore(template): clean-slate template snapshot from bb4a0c7

Curated, product-agnostic snapshot of the post-story-04 tree: demo
content deleted, auth-only reference feature, web-next shell, all gates
green. Product-specific docs, ADRs 027-029, PRDs/epics/archive, editor
library traces, and product naming are curated out; generic template
repairs (coverage provider devDeps, root test:coverage script, live
lint fixes, root-only release-please) are kept. See TEMPLATE.md for
provenance, curation list, and usage.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016j8z4VHjedXDTjEDNg7qHK

2026-07-12 20:40:54 +02:00

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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	socketRisk
MIT	native	active	pass	pass	n/a	clean	pass	clean

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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