An intelligent tool that analyzes code logic to generate comprehensive unit tests and edge cases automatically across multiple programming languages.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install automatic-test-generator
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install automatic-test-generator using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is Automatic Test Generator?
The Automatic Test Generator is a high-performance developer tool designed to eliminate the manual drudgery of writing unit tests. By deep-linking into your development environment, this skill analyzes function signatures, internal logic, and dependencies to produce robust, runnable test suites. It supports a wide array of frameworks including Jest, Vitest, Pytest, and Go testing, ensuring that your Openclaw Skills library provides versatility across different tech stacks.
Beyond basic test generation, the skill identifies complex edge cases and handles mock configurations for external services like databases and APIs. By integrating this into your workflow, you can maintain high code quality and achieve coverage goals while saving up to 90% of the time typically spent on test boilerplate. It is an essential addition for any developer utilizing Openclaw Skills to build more reliable software.
Automatic Test Generator Use Cases
- Generating comprehensive unit tests for new functions and classes during active development to follow TDD patterns.
- Backfilling test suites for legacy codebases that lack sufficient coverage or documentation.
- Preparing for CI/CD requirements by ensuring branch and statement coverage goals meet industry standards.
- Creating safety nets before major refactoring projects to prevent regression bugs in critical logic.
- Learning framework-specific testing patterns and best practices through automatically generated, high-quality examples.
How Automatic Test Generator Works
- The skill analyzes the target function signature, including parameters, return types, and TypeScript definitions.
- It parses the implementation logic to map out control flows, conditionals, and loops for branch coverage.
- External dependencies and imports are identified to determine necessary mock setups and isolation requirements.
- Potential edge cases such as null values, empty strings, and boundary conditions are detected for the Act phase.
- A structured test file is generated using the Arrange-Act-Assert pattern in the preferred framework.
- Comprehensive mocks are created for external services like databases or network APIs.
- The final output is formatted according to the project’s specific linting and style guides for seamless integration.
Automatic Test Generator Setup
To use the Automatic Test Generator within your Openclaw Skills environment, ensure you have the relevant runtime (like Node.js or Python) installed for your project.
# For JavaScript/TypeScript projects using Jest
npm install --save-dev jest @types/jest ts-jest
# To verify the generated tests, run your project's test command
npm test
You can then prompt your AI agent to analyze specific files or directories to generate the corresponding test files.
Automatic Test Generator Data Schema & Taxonomy
The skill organizes its output based on your project's directory structure and the selected testing framework. It typically follows a 1:1 mapping between source files and test files.
| File Type | Description | Target Framework |
|---|---|---|
*.test.ts/js |
Unit tests for JS/TS | Jest, Vitest, Mocha |
test_*.py |
Unit tests for Python | Pytest |
*_test.go |
Unit tests for Go | Go Standard Library |
*Test.java |
Unit tests for Java | JUnit |
It also generates metadata for mock objects and dependency trees to ensure the generated code is immediately executable.
Automatic Test Generator Advanced Features
- Automatic mock generation for complex external modules, filesystem operations, and third-party API calls.
- Support for snapshot testing to handle large, complex object assertions and UI component states.
- Parameterized test generation for running multiple input variations through a single logical block efficiently.
- Advanced TypeScript support including type-safe mocks and generic interface handling.
- Integration with coverage threshold enforcement to ensure every generated test contributes to global project health.
SKILL.md
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