Back to feed
Dev.to
Dev.to
6/19/2026
Spring Boot 3.2 + Testcontainers: Reliable Integration Testing with Real Dependencies

Spring Boot 3.2 + Testcontainers: Reliable Integration Testing with Real Dependencies

Short summary

Spring Boot 3.2 with Testcontainers enables integration testing against real database instances instead of in-memory alternatives, catching environment-specific bugs before production. The tutorial covers setup with PostgreSQL containers, dynamic property injection, and common pitfalls like non-static container fields and hardcoded JDBC URLs. Container reuse optimizes test performance for teams running frequent test cycles.

  • •Testcontainers create disposable PostgreSQL instances for reliable integration tests matching production environments
  • •Key pitfalls: non-static container fields, hardcoded JDBC URLs, and missing container reuse configuration
  • •Use @DynamicPropertySource to inject runtime database connection details dynamically

Generated with AI, which can make mistakes.

#certification-education#open-source
Read full article at Dev.to

Is this a good recommendation for you?

Comments

Failed to load comments. Please try again.

Explore more

🚀 From Testcontainers to Trust: Building Reliable Integration Tests in .NET
Dev.to
Testing AI-Generated Node.js Code with Real Dependencies using Docker and Test containers
Dev.to
The original title is "Using GitHub Copilot and Testcontainers for .NET integration tests"
Dev.to
Deploying a Multi-Module Spring Boot App to Render with PostgreSQL, Redis, Docker, and Flyway
Dev.to