--- name: generating-unit-tests-5a73730eb2cf description: | This skill enables Claude to automatically generate comprehensive unit tests from source code. It is triggered when the user requests unit tests, test cases, or test suites for specific files or code snippets. The skill supports multiple testing frameworks including Jest, pytest, JUnit, and others, intelligently detecting the appropriate framework or using one specified by the user. Use this skill when the user asks to "generate tests", "create unit tests", or uses the shortcut "gut" followed by a file path. allowed-tools: Read, Write, Edit, Grep, Glob, Bash version: 1.0.0 --- ## Overview This skill empowers Claude to rapidly create robust unit tests, saving developers time and ensuring code quality. It analyzes source code, identifies key functionalities, and generates test cases covering various scenarios, including happy paths, edge cases, and error conditions. ## How It Works 1. **Analyze Source Code**: The skill analyzes the provided source code file to understand its functionality, inputs, and outputs. 2. **Determine Testing Framework**: The skill either detects the appropriate testing framework based on the file type and project structure or uses the framework specified by the user. 3. **Generate Test Cases**: The skill generates comprehensive test cases, including tests for valid inputs, invalid inputs, boundary conditions, and error scenarios. 4. **Create Mock Dependencies**: The skill automatically creates mocks and stubs for external dependencies to isolate the code being tested. 5. **Output Test File**: The skill outputs a new test file containing the generated test cases, imports, setup, and assertions. ## When to Use This Skill This skill activates when you need to: - Create unit tests for a specific file or code snippet. - Generate test cases for a function, class, or module. - Quickly add test coverage to existing code. - Ensure code quality and prevent regressions. ## Examples ### Example 1: Generating Tests for a JavaScript Utility Function User request: "generate tests src/utils/validator.js" The skill will: 1. Analyze the `validator.js` file to understand its functions and dependencies. 2. Detect that the file is JavaScript and default to Jest. 3. Generate a `validator.test.js` file with test cases covering various validation scenarios. ### Example 2: Generating Tests for a Python API Endpoint using pytest User request: "generate tests --framework pytest src/api/users.py" The skill will: 1. Analyze the `users.py` file to understand its API endpoints and dependencies. 2. Use pytest as the testing framework, as specified by the user. 3. Generate a `test_users.py` file with test cases covering various API scenarios, including successful requests, error handling, and authentication. ## Best Practices - **Framework Specification**: Explicitly specify the testing framework when the default is not desired or ambiguous. - **File Granularity**: Generate tests for individual files or modules to maintain focus and testability. - **Review and Refine**: Always review and refine the generated tests to ensure they accurately reflect the desired behavior and coverage. ## Integration This skill can be used in conjunction with other code analysis and refactoring tools to improve code quality and maintainability. It also integrates with CI/CD pipelines to automatically run tests and prevent regressions. --- Source attribution: BbgnsurfTech Original project: https://github.com/BbgnsurfTech/claude-skills-collection/blob/01d3fafeca1133f841956b8b90b939fee92d71e7/plugins/claude-code-plugins-plus/backups/skill-structure-cleanup-20251108-073936/plugins/testing/unit-test-generator/skills/unit-test-generator/SKILL.md License: MIT License information: https://opensource.org/license/mit Original upstream instructions; downloaded from Mega AI Hub. ## Upstream license notice MIT License Copyright (c) 2025 Claude Code Plugins Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. # Mega AI Hub resource metadata Creator / publisher: BbgnsurfTech Original project: https://github.com/BbgnsurfTech/claude-skills-collection/blob/01d3fafeca1133f841956b8b90b939fee92d71e7/plugins/claude-code-plugins-plus/backups/skill-structure-cleanup-20251108-073936/plugins/testing/unit-test-generator/skills/unit-test-generator/SKILL.md Attribution basis: Source repository record Fields of work: Development & Engineering, Product Management Roles: Backend Developer, DevOps / SRE, Frontend Developer, Product Manager, QA / Test Engineer Specialties: Testing Tools: Jest, Junit, Pytest Country applicability: Country not specified Classification basis: Source catalog labels Instruction SHA-256: e2041830d4778287909ae85f7ea9c50d90783e073468cf209696ec89a4e448d8