2020
https://www.javaworld.com/article/3543268/junit-5-tutorial-part-2-unit-testing-spring-mvc-with-junit-5.html
https://www.javaworld.com/article/3537563/junit-5-tutorial-part-1-unit-testing-with-junit-5-mockito-and-hamcrest.html
2019
http://www.vogella.com/tutorials/JUnit/article.html