Diego Pacheco Tech blog

Spring Data Spring Data makes persistence much easier. I personally not a huge fan of JPA and ORMs.  However, I know lots of engineers like it and I respect different preferences. Have different preferences in different services is totally fine. However, doing that in shared libs is NO-NO. Today I want to cover a bit more about how we can use Spring Data JPA and H2 database for testing. Speed matters. Combining H2 and MockMVC we can speed up tests considerably. I made a simple POC showing how we can configure and use Spring Data JPA with H2 and do proper testing using MockMVC capabilities. I also show how to use the H2 Console so we can query the database. Spring-Data makes persistence much more concise and leverages lots of common functionality for us. So Let's get started. 

Spring and Spring Boot provide several ways to test our applications/services. Recently I made a post and video about Testing approaches that might be interesting for you. Previously I also made a post and video about TestRestTemplate  and mocks . For this post, I want to focus a bit on the MockMVC capability. MockMVC has a FakeDispatcher servlet(It will feel pretty real) simulating the MVC stack, however, there are no real network connections being made in practice. So MockMVC provides a lightweight way to test controllers as fast as possible. For this post, we will see a simple POC I wrote with a video going to set up a Spring Boot application and also test some scenarios with the MockMVC feature. So Let's Get Started!