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unittest-test-creator skill

/skills/09-test-automation/unittest-test-creator

This skill helps automate unittest test creation by providing step-by-step guidance, production-ready code, and validation for test automation tasks.

npx playbooks add skill jeremylongshore/claude-code-plugins-plus-skills --skill unittest-test-creator

Review the files below or copy the command above to add this skill to your agents.

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SKILL.md
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---
name: "unittest-test-creator"
description: |
  Create unittest test creator operations. Auto-activating skill for Test Automation.
  Triggers on: unittest test creator, unittest test creator
  Part of the Test Automation skill category. Use when writing or running tests. Trigger with phrases like "unittest test creator", "unittest creator", "unittest".
allowed-tools: "Read, Write, Edit, Bash(cmd:*), Grep"
version: 1.0.0
license: MIT
author: "Jeremy Longshore <[email protected]>"
---

# Unittest Test Creator

## Overview

This skill provides automated assistance for unittest test creator tasks within the Test Automation domain.

## When to Use

This skill activates automatically when you:
- Mention "unittest test creator" in your request
- Ask about unittest test creator patterns or best practices
- Need help with test automation skills covering unit testing, integration testing, mocking, and test framework configuration.

## Instructions

1. Provides step-by-step guidance for unittest test creator
2. Follows industry best practices and patterns
3. Generates production-ready code and configurations
4. Validates outputs against common standards

## Examples

**Example: Basic Usage**
Request: "Help me with unittest test creator"
Result: Provides step-by-step guidance and generates appropriate configurations


## Prerequisites

- Relevant development environment configured
- Access to necessary tools and services
- Basic understanding of test automation concepts


## Output

- Generated configurations and code
- Best practice recommendations
- Validation results


## Error Handling

| Error | Cause | Solution |
|-------|-------|----------|
| Configuration invalid | Missing required fields | Check documentation for required parameters |
| Tool not found | Dependency not installed | Install required tools per prerequisites |
| Permission denied | Insufficient access | Verify credentials and permissions |


## Resources

- Official documentation for related tools
- Best practices guides
- Community examples and tutorials

## Related Skills

Part of the **Test Automation** skill category.
Tags: testing, jest, pytest, mocking, tdd

Overview

This skill automates creation of Python unittest test cases and related configuration for Test Automation workflows. It produces production-ready test code, suggests patterns, and helps validate tests against common standards. Use it to accelerate writing unit tests, mock external dependencies, and configure test execution environments.

How this skill works

When triggered it inspects your code or a described API surface and generates unittest.TestCase classes, test methods, setup/teardown hooks, and example mocks. It follows industry patterns (arrange-act-assert, fixture reuse) and can output runnable files, configuration snippets, and validation notes. The skill also reports common issues such as missing assertions, flaky patterns, or dependency requirements.

When to use it

  • Creating unit tests for new or existing Python modules using unittest
  • Converting manual test ideas into runnable test cases and mocks
  • Configuring test discovery, test runners, and CI test steps
  • Improving test coverage with edge cases and parameterized scenarios
  • Validating test structure and identifying fragile or non-deterministic tests

Best practices

  • Prefer small, focused test methods that follow arrange-act-assert
  • Use setUp/tearDown or setUpClass for shared fixtures to avoid duplication
  • Mock external I/O and network calls; keep unit tests deterministic
  • Assert behavior, not implementation; avoid over-constraining internals
  • Run generated tests locally before adding to CI and include requirements

Example use cases

  • Generate unittest.TestCase files for a new service layer module with mocks for database access
  • Create tests that simulate edge cases and error paths for input validation functions
  • Produce CI-friendly test runner configuration and a test discovery pattern
  • Refactor brittle tests by introducing proper fixtures and scoped mocks
  • Audit an existing test suite and provide improvements to increase reliability

FAQ

Can the skill generate tests for third-party libraries or frameworks?

Yes. Provide the API surface or example code and the skill will generate tests that mock or wrap third-party calls following unittest patterns.

Does it support pytest or other frameworks?

This skill focuses on Python's unittest framework but can suggest translation patterns to pytest or provide equivalent examples on request.

How do I validate generated tests?

Run them locally or in CI. The skill also provides a checklist for common failures and recommendations to resolve missing dependencies or flaky behavior.