In this Blogpost, I will show you how to test the MongoDB-based data layer of your Spring Boot Application with @DataMongoTest. While having a look at an example, we will bootstrap some test data, use an embedded in-memory MongoDB and write an actual MongoDB test.
How to test the Data Layer of your Spring Boot Application – an Overview
In this blog post, I will give you an overview of Spring Boot’s capabilities to test the data layer of your application.
There is a vast amount of technologies to choose from when it comes to loading and persisting data. There are not only completely different types of data stores but also different ways to communicate with them. Which combination is the most fitting, depends on your application. Whatever you choose, you should consider testing the components communicating with your data store, to prevent working with the wrong data.
The @Data*Test annotations of Spring Boot offer a great way to test these components in isolation while providing some handy niceties to make your life easier.