Test Implement Skill for Claude

Implements React/TypeScript unit, integration, and browser E2E tests with the repository's configured runner, mocks, setup, and browser harness. Use when creating or completing frontend tests and generated test skeletons.

2k tokens

context cost

the whole folder, loaded on every use

files

instructions only

copies elsewhere

how many repositories repackaged it

664

stars on the repo

on the repository, not the skill itself

Install

one command, takes just this skill from the repository

npx skills add https://github.com/shinpr/claude-code-workflows --skill test-implement

The instruction itself

6 sections, as written by the author

Test Implementation Patterns

Reference Selection

| Test Type | Reference | When to Use |

|-----------|-----------|-------------|

| Unit / Integration | references/frontend.md | Implementing React component tests with the repository's configured runner and network mocking layer |

| E2E | references/e2e.md | Implementing browser-level E2E tests in the existing harness, or Playwright when the approved work introduces a harness |

Common Principles

AAA Structure

All tests follow Arrange-Act-Assert:

Arrange: Set up preconditions and inputs
Act: Execute the behavior under test
Assert: Verify the expected outcome

Test Independence

Each test runs independently without depending on other tests
No shared mutable state between tests
Deterministic execution — no random or time dependencies without mocking

Naming

Test names describe expected behavior from user perspective
One test verifies one behavior

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How to use it

Copy the folder

Take shinpr/test-implement from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.