How do I install the Test Vue Composable skill?

Run npx skillmds@latest add majiayu000/test-vue-composable in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Test Vue Composable safe to use?

This skill has not completed SkillMD's automated safety review yet. Independent scanners report: SkillSpector: PASS, Skill Scanner: PASS. Capability flags: docs only. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Test Vue Composable?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Test Vue Composable free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Test Vue Composable?

majiayu000 (@majiayu000) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Test Vue Composable by majiayu000 — Agent Skill

Name: Test Vue Composable
Rating: 4.5 (4 reviews)
Author: majiayu000

Test Vue Composable

Guide for unit testing Vue 3 Composables using Vitest. Use this skill when writing tests for Vue logic to determine the correct testing strategy based on whether the composable is independent, relies on lifecycle hooks (onMounted), or uses dependency injection (provide/inject).

majiayu000 Updated Sep 9, 2026 567 repo stars

File contents

Vue Composable Testing Guide (Vitest)

1. Determine Composable Type

Analyze the source code of the composable to determine the testing strategy:

Independent: Uses only Reactivity APIs (ref, computed, watch). Does not use Lifecycle hooks or inject.
Dependent (Lifecycle): Uses Lifecycle hooks (e.g., onMounted, onUnmounted).
Dependent (Injection): Uses inject to retrieve dependencies.

2. Select Testing Strategy

A. Independent Composables

Test directly by invoking the function and asserting the returned state. No mocking of the Vue instance is required.

Pattern: Import composable -> Call it -> Assert result.value.
Reference: See references/examples.md (Section: Independent)

B. Dependent Composables (Lifecycle)

Requires a component context to trigger hooks like onMounted. Use the withSetup helper function.

Prerequisite: Ensure test-utils.ts (or similar) exists containing the withSetup helper.
- Action: If the helper is missing, generate it using references/helpers.md.
Pattern: Import withSetup -> Call withSetup(() => useComposable()) -> Destructure result -> Assert.
Reference: See references/examples.md (Section: Lifecycle Dependent)

C. Dependent Composables (Injection)

Requires a provider context. Use the useInjectedSetup helper function.

Prerequisite: Ensure test-utils.ts contains the useInjectedSetup helper.
- Action: If the helper is missing, generate it using references/helpers.md.
Pattern: Define injection config array -> Call useInjectedSetup -> Assert -> Call unmount().
Reference: See references/examples.md (Section: Injection Dependent)

---name: test-vue-composabledescription: Guide for unit testing Vue 3 Composables using Vitest. Use this skill when writing tests for Vue logic to determine the correct testing strategy based on whether the composable is independent, relies on lifecycle hooks (onMounted), or uses dependency injection (provide/inject).--- # Vue Composable Testing Guide (Vitest) ## 1. Determine Composable Type Analyze the source code of the composable to determine the testing strategy: 1. **Independent**: Uses only Reactivity APIs (`ref`, `computed`, `watch`). Does not use Lifecycle hooks or `inject`. 2. **Dependent (Lifecycle)**: Uses Lifecycle hooks (e.g., `onMounted`, `onUnmounted`). 3. **Dependent (Injection)**: Uses `inject` to retrieve dependencies. ## 2. Select Testing Strategy ### A. Independent Composables Test directly by invoking the function and asserting the returned state. No mocking of the Vue instance is required. * **Pattern**: Import composable -> Call it -> Assert `result.value`. * **Reference**: See `references/examples.md` (Section: Independent) ### B. Dependent Composables (Lifecycle) Requires a component context to trigger hooks like `onMounted`. Use the `withSetup` helper function. 1. **Prerequisite**: Ensure `test-utils.ts` (or similar) exists containing the `withSetup` helper. * *Action*: If the helper is missing, generate it using `references/helpers.md`. 2. **Pattern**: Import `withSetup` -> Call `withSetup(() => useComposable())` -> Destructure result -> Assert. 3. **Reference**: See `references/examples.md` (Section: Lifecycle Dependent) ### C. Dependent Composables (Injection) Requires a provider context. Use the `useInjectedSetup` helper function. 1. **Prerequisite**: Ensure `test-utils.ts` contains the `useInjectedSetup` helper. * *Action*: If the helper is missing, generate it using `references/helpers.md`. 2. **Pattern**: Define injection config array -> Call `useInjectedSetup` -> Assert -> **Call unmount()**. 3. **Reference**: See `references/examples.md` (Section: Injection Dependent)

Frequently asked questions