---
package: "@testing-library/react"
version: "^16.0.0"
tier: core
decision: approved
date: 2026-05-14
deciders: [Danijel Martinek]
adr: null
filter-results:
  license: MIT
  types: native
  maintenance: active
  boundary-fit: pass
  shadow-check: pass
  eu-residency: n/a
  cve-scan: clean
  named-consumer: pass
  socketRisk: clean
verification-commands:
  - npm view @testing-library/react license
  - npm view @testing-library/react version
  - pnpm audit --audit-level=moderate
accepted-cves: []
---

## Filter: license

<!-- Result: MIT -->

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

## Filter: types

<!-- Result: native -->

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

## Filter: maintenance

<!-- Result: active -->

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

## Filter: boundary-fit

<!-- Result: pass -->

`@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

<!-- Result: pass -->

`@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

<!-- Result: n/a -->

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

## Filter: cve-scan

<!-- Result: clean -->

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

## Filter: named-consumer

<!-- Result: pass -->

`@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

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 **Enzyme** — Deprecated and no longer maintained for React 18+; Testing Library is the ecosystem standard.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