Javascript Testing Patterns
Helps with JavaScript, testing, patterns as part of developing backend services and APIs workflows.
Install on your platform
We auto-selected Claude Code based on this skill’s supported platforms.
Run in terminal (recommended)
claude mcp add hermeticormus-javascript-testing-patterns npx -- -y @trustedskills/hermeticormus-javascript-testing-patterns
Or manually add to ~/.claude/settings.json
{
"mcpServers": {
"hermeticormus-javascript-testing-patterns": {
"command": "npx",
"args": [
"-y",
"@trustedskills/hermeticormus-javascript-testing-patterns"
]
}
}
}Requires Claude Code (claude CLI). Run claude --version to verify your install.
About This Skill
What it does
This skill provides guidance and code examples for applying common JavaScript testing patterns. It helps ensure robust, maintainable, and well-tested JavaScript codebases by leveraging established practices like mocking, stubbing, spies, and test doubles. The skill aims to improve the quality of automated tests and reduce debugging time.
When to use it
- Refactoring Legacy Code: When updating older JavaScript projects with inconsistent or lacking tests.
- Building New Features: To establish a strong testing foundation from the start for new components or modules.
- Debugging Complex Issues: To isolate and reproduce bugs by creating targeted test cases using mocking and stubbing techniques.
- Improving Test Coverage: When aiming to increase the percentage of code covered by automated tests.
Key capabilities
- Mocking
- Stubbing
- Spies
- Test Doubles
Example prompts
- "Show me an example of using a mock function in Jest."
- "How can I stub a database call for testing purposes?"
- "Explain how spies are useful for verifying function calls during tests."
Tips & gotchas
This skill assumes basic familiarity with JavaScript and testing frameworks like Jest or Mocha. While it provides patterns, understanding the underlying principles of each technique is crucial for effective application.
Tags
TrustedSkills Verification
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Security Audits
| Gen Agent Trust Hub | Pass |
| Socket | Pass |
| Snyk | Pass |
🌐 Community
Passed automated security scans.