Should I test private functions using this skill?

The skill follows the best practice of testing only the public interface and behavior, discouraging the direct testing of implementation details or private functions.

How does it handle mocking in Rust?

It promotes a 'mock-minimal' approach, allowing mocks for external services like HTTP requests and databases while discouraging them for internal project logic.

Does this skill help with integration testing?

Yes, it defines specific rules and directory structures for both internal unit tests and external integration tests located in the /tests directory.

Does it support parameterized testing?

Yes, it includes patterns for table-driven tests, allowing you to run multiple test cases through the same logic efficiently.

Rust Testing Rules

Name: Rust Testing Rules
Author: DIO0550

byDIO0550

0•

Security & Testing

Standardizes Rust unit and integration testing workflows by enforcing best practices for mocks, test structures, and the testing pyramid.

This skill provides a comprehensive framework for implementing high-quality tests in Rust projects. It defines specific conventions for in-module testing, strict mock usage—limiting them to external dependencies like APIs and databases—and parameterized tests to ensure code reliability. By following the integrated test pyramid guidelines and focusing on public-facing behavior rather than implementation details, developers can maintain a robust codebase while avoiding common pitfalls like over-mocking or testing private internals.

Key Features

01Guides directory structure for both internal mod tests and external integration tests

020 GitHub stars

03Defines strict boundaries for mock usage to ensure realistic unit tests

04Provides templates for parameterized and table-driven testing in Rust

05Enforces behavior-driven testing over implementation detail verification

06Implements a standardized test pyramid ratio (Unit, Integration, E2E)

Use Cases

01Establishing a consistent testing strategy for new Rust microservices

02Onboarding developers to project-specific Rust testing conventions and mock policies

03Refactoring legacy Rust code to follow modern unit testing patterns

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add dio0550/d-market-rust testing

For use in Claude.ai and ChatGPT