unit-testing-patterns

What problem does it solve?

This Skill provides a structured approach to writing high-quality unit tests for the CIA platform using JUnit 5, Mockito, and AssertJ, ensuring tests are readable, deterministic, and maintainable while targeting 80%+ code coverage.

Core Features & Use Cases

• AAA Test Structure: Arrange, Act, and Assert patterns to keep tests clear and predictable.
• Mocking & Verification: Effective use of Mockito to isolate units and verify interactions.
• Fluent Assertions: Using AssertJ for expressive, readable test assertions.
• Coverage Goals: Guidance and examples aimed at achieving 80%+ line coverage and 70% branch coverage.
• Use Case: Apply these patterns to service layer validation, data validation, and utility routines across the CIA codebase.

Quick Start

Use the unit-testing-patterns skill to scaffold a PoliticianServiceTest with Mockito mocks and AssertJ assertions, following the AAA structure.