# Vue Testing Best Practices

> Use for Vue.js testing. Covers Vitest, Vue Test Utils, component testing, mocking, testing patterns, and Playwright for E2E testing. Use when this capability is needed.

- Skill: `tomevault-io/vue-testing-best-practices-16` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add tomevault-io/vue-testing-best-practices-16`
- Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/vue-testing-best-practices-16/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Web & Frontend
- Author: tomevault-io (https://skillmd.com/u/tomevault-io)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/tomevault-io/vue-testing-best-practices-16

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Vue.js testing best practices, patterns, and common gotchas.

### Testing
- Setting up test infrastructure for Vue 3 projects → See [testing-vitest-recommended-for-vue](references/testing-vitest-recommended-for-vue.md)
- Tests keep breaking when refactoring component internals → See [testing-component-blackbox-approach](references/testing-component-blackbox-approach.md)
- Tests fail intermittently with race conditions → See [testing-async-await-flushpromises](references/testing-async-await-flushpromises.md)
- Composables using lifecycle hooks or inject fail to test → See [testing-composables-helper-wrapper](references/testing-composables-helper-wrapper.md)
- Getting "injection Symbol(pinia) not found" errors in tests → See [testing-pinia-store-setup](references/testing-pinia-store-setup.md)
- Components with async setup won't render in tests → See [testing-suspense-async-components](references/testing-suspense-async-components.md)
- Snapshot tests keep passing despite broken functionality → See [testing-no-snapshot-only](references/testing-no-snapshot-only.md)
- Choosing end-to-end testing framework for Vue apps → See [testing-e2e-playwright-recommended](references/testing-e2e-playwright-recommended.md)
- Tests need to verify computed styles or real DOM events → See [testing-browser-vs-node-runners](references/testing-browser-vs-node-runners.md)
- Testing components created with defineAsyncComponent fails → See [async-component-testing](references/async-component-testing.md)
- Teleported modal content can't be found in wrapper queries → See [teleport-testing-complexity](references/teleport-testing-complexity.md)

## Reference

- [Vue.js Testing Guide](https://vuejs.org/guide/scaling-up/testing)
- [Vue Test Utils](https://test-utils.vuejs.org/)
- [Vitest Documentation](https://vitest.dev/)
- [Playwright Documentation](https://playwright.dev/)

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> Source: [Pancake-Q/claude-plugin-frontend](https://github.com/Pancake-Q/claude-plugin-frontend) — distributed by [TomeVault](https://tomevault.io).
<!-- tomevault:4.0:skill_md:2026-05-04 -->