Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community!

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Java Spring Basics Using the MVC Architecture Add a CategoryController

1 Answer

The Java compiler automatically adds a default no-argument constructor to any classes that do not have a constructor defined.

Here's a link to spring-boot-starter-test which includes JUnit, Mockito, and AssertJ: https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-test

Here is a simple test suite:

public class GifRepositoryTest {
  private GifRepository gifRepository = new GifRepository();

  public void findByCategoryId() throws Exception {
    int actual = gifRepository.findByCategoryId(2).size();
    int expected = 3;


  public void findByName() throws Exception {
    String actual = gifRepository.findByName("android-explosion").getName();
    String expected = "android-explosion";