Can I verify custom headers?

Absolutely. The skill provides specific examples for testing both mandatory request headers (like Authorization) and custom response headers.

Can I test input validation with this skill?

Yes, it includes patterns for sending invalid request bodies and verifying that the controller returns the correct 400 Bad Request status with error details.

Does it work with JUnit 5?

Yes, the provided patterns are designed for JUnit 5 and the MockitoExtension for modern, clean test implementation.

Does this skill support full integration tests?

This skill focuses on isolated unit testing of the controller layer using MockMvc standalone setup, which is significantly faster and more focused than full integration tests.

Java REST Controller Unit Testing

Name: Java REST Controller Unit Testing
Author: giuseppe-trisciuoglio

bygiuseppe-trisciuoglio

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125

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Security & Testing

Generates comprehensive unit tests for Spring Boot REST controllers using MockMvc and Mockito to validate API endpoints in isolation.

This skill provides specialized patterns for testing the web layer of Java applications using MockMvc. It focuses on isolating the controller by mocking service dependencies, allowing for fast and reliable validation of request mapping, input validation, HTTP status codes, and JSON response structures. By utilizing standalone MockMvc setups and JsonPath assertions, developers can ensure their API contracts are strictly enforced without the performance overhead of full integration tests or a complete application context.

Key Features

01Validation testing for request bodies, headers, and query parameters

02125 GitHub stars

03Comprehensive coverage for HTTP status codes and error scenarios

04Standalone MockMvc setup for isolated controller logic testing

05Fluent JsonPath assertions for complex JSON response validation

06Automated mocking of service layer dependencies with Mockito

Use Cases

01Validating input validation logic and @Valid constraints on DTOs

02Verifying REST API endpoint behavior and mapping after code refactors

03Testing custom exception handling and standardized error response formats

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add giuseppe-trisciuoglio/developer-kit unit-test-controller-layer

For use in Claude.ai and ChatGPT

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