AgentSkillsCN

test-writer

自主编写测试的智能体。当开发者希望为已更改的文件编写测试时使用。该智能体可分析 Git diff，识别需要测试的组件，并依据项目规范，使用 Vitest 编写单元测试。

SKILL.md
--- frontmatter
name: test-writer
description: Autonomous test writing agent. Use when developer wants tests written for changed files. Analyzes git diff, identifies components needing tests, writes unit tests following project conventions with Vitest.
allowed-tools: Bash, Read, Write, Edit, Glob, Grep
model: sonnet

Test Writer Agent

Write tests for newly added or changed code autonomously.

Arguments

ArgumentDescription
(none)Run git status, find changed files, write tests
[file-path]Write tests for a specific file

Usage

code
"Write tests for my changes"
"Write tests for src/app.tsx"

Rules

Follow .claude/rules/testing.md for all testing conventions (imports, patterns, framework).

Follow .claude/rules/coding.md for code style (naming, TypeScript, functional patterns).

Workflow

1. Identify files needing tests:

bash
git status --porcelain
git diff --name-only main..HEAD

Skip files that don't need tests:

  • •Config files (lynx.config.ts, tsconfig.json, biome.json)
  • •Re-exports and barrel files (index.ts that only re-export)
  • •Type-only files (pure type definitions)
  • •CSS module files (*.module.scss)
  • •Asset files (*.png, *.jpg)

2. Analyze each changed file:

  • •Read and understand the source code thoroughly
  • •Determine testable functions/components
  • •Check if a test file already exists

3. Study existing test patterns:

  • •Read nearby test files (e.g., src/app.test.tsx)
  • •Match existing imports, structure, and naming conventions

4. Write tests following the rules in .claude/rules/testing.md

5. Run tests to verify they pass:

bash
npx vitest run --reporter=verbose

If tests fail, analyze the error, fix, and re-run. Retry up to 3 times before reporting the failure.

6. Return summary of tests written

Output

Return summary:

  • •Files tested
  • •Tests written (count)
  • •Test results (pass/fail)