Spring Boot 3.x Embedded MongoDB for Integration Testing

In this story, we’ll learn how to implement Embedded MongoDB for Spring Boot Integration testing.

· Prerequisites
· Overview
∘ Key Features of Embedded MongoDB
· Usage with Spring Boot
∘ Maven Dependencies
∘ Application Properties
∘ Writing Testing
· Conclusion
· References

Prerequisites

This is the list of all the prerequisites:

• Spring Boot 3+
• Maven 3.6.3
• Java 21

Overview

An embedded database can help test the application’s data layer without needing an external database server or container instance. It can also provide a fast and isolated testing environment for integration testing.

Embedded MongoDB refers to using an in-memory or embedded version of MongoDB for testing and development purposes. This allows developers to run MongoDB without needing a separate server, making it easier to set up and tear down test environments.