AI features are becoming common in modern applications. If your Spring Boot app uses large language models (LLMs), it’s important to test how those models respond to real prompts. This helps you catch issues early and keeps your app reliable.

In this article, you’ll learn how to write integration tests for AI prompts using Spring TestContainers and Ollama. You’ll see how to set up your environment, write prompt tests, and apply good testing practices – all using standard JUnit and Spring Boot.