Spring Boot Testing Patterns

Overview

Comprehensive guidance for writing robust test suites for Spring Boot applications using JUnit 5, Mockito, Testcontainers, and performance-optimized slice testing patterns.

When to Use

• Writing unit tests for services or repositories with mocked dependencies
• Implementing integration tests with real databases via Testcontainers
• Testing REST APIs with @WebMvcTest or MockMvc
• Configuring @ServiceConnection for container management in Spring Boot 3.5+

Quick Reference