The smallest scoped tests we can write are referred to as unit tests. In fact, people have been writing tiny tests for years. A common paradigm is to try and test just one class in a given unit test.
To get going, let's test the smallest unit of code we have: our Lombok-enabled Image domain object.
As a reminder, here is what that code looks like:
@Data
@Document
public class Image {
@Id final private String id;
final private String name;
}
This tiny little POJO is flagged with Spring Data MongoDB annotations as well as Lombok's @Data annotation providing getters and setters.
A unit test shouldn't be too hard. We can start by creating ImageTests.java in /src/test/java, and in the same package as the original class (com.greglturnquist.learningspringboot ...
