junit4

What problem does it solve?

This Skill provides structured guidance and templates for writing solid JUnit 4 tests in Java 8, reducing boilerplate and preventing common testing mistakes.

Core Features & Use Cases

• Test structure templates: Pre-built patterns for setup, teardown, and test lifecycle annotations (Before, After, BeforeClass, AfterClass).
• Mockito integration: Demonstrates standard mocking, stub setup, and verification flows without Spring.
• Parameterized testing & categories: Examples of Parameterized tests and @Category usage for test organization.
• Best practices & conventions: Guidance on naming, exception testing, and assertion styles (AssertJ).

Quick Start

Create a sample JUnit 4 test class in Java 8 using the provided patterns to verify a simple method.