filippovskii09/jest-setup-recipe
.agents/skills/jest-setup-recipe/SKILL.md
Reusable Jest setup recipe for React + TypeScript + ESM projects using ts-jest and jsdom. Use when creating or validating the unit test runtime.
development
Updated Apr 16, 2026
$ install --global
skillsauthnpx skillsauth add filippovskii09/quize-audit jest-setup-recipeInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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Last scanned: Apr 16, 2026, 9:05 PM4.7s2 files scanned
SKILL.md
- name:
- jest-setup-recipe
- description:
- Reusable Jest setup recipe for React + TypeScript + ESM projects using ts-jest and jsdom. Use when creating or validating the unit test runtime.
Jest Setup Recipe
Goal
Provide a stable Jest runtime for React and TypeScript with ESM support.
Extracted Source (Current Project)
- Config file:
jest.config.ts - Preset:
ts-jest/presets/default-esm - Environment:
jsdom - Setup file:
src/setupTest.tsx - ESM extensions:
.ts,.tsx - TS transform:
ts-jestwithtsconfig.test.json - Aliases aligned with Vite/TS paths (
@ui,@icons,@components,@src)
Dependencies
jestts-jestjest-environment-jsdom@testing-library/react@testing-library/jest-dom
Runbook
- Execute tests with coverage:
npm test
- Ensure alias mapping in Jest stays synchronized with
tsconfigandvite.config.ts. - Keep
setupFilesAfterEnvconsistent with global matchers and test helpers.
Expected Outcome
Tests run in a browser-like environment with consistent module resolution and stable coverage output.
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