JUnit 5 Tutorial - Crash Course

Ever looked for a comprehensive intro to JUnit 5 that is fun and entertaining at the same time? Then have a look at this brand-new episode of "Marco Codes": JUnit 5 Tutorial [Crash Course].

In this video, you'll learn how to use JUnit 5 like a professional. Understand what Maven/Gradle dependencies you'll need, how to write tests, how to use other assertion libraries like AssertJ and asserting JSON & XML, and explore new JUnit 5 features like @ParameterizedTests, @TestFactorys, and @ExtendWith. By the end of the tutorial, there won't be many questions left when it comes to JUnit 5.

► References

► Table Of Contents
00:00 Intro
00:17 Project Skeleton Overview
00:35 Maven/Gradle Dependencies
01:52 Project Overview - Classes
02:11 First Test Class & Fixture
03:02 @Test methods
04:59 First Test Run
05:23 Mvn + Junit5 Issues
07:12 JUnit Assertions
08:35 AssertJ - assertThat
13:40 @DisplayName
14:41 JSON Unit - Asserting JSON
17:34 XML Unit - Asserting XML
20:29 Lifecycle Intro
21:10 @BeforeEach
21:29 @AfterEach
22:15 @BeforeAll / @AfterAll
23:13 @ParameterizedTest
24:12 @ParameterizedTest - @ValueSource
25:22 @ParameterizedTest - @CSV Sources
26:47 @ParameterizedTest - @EnumSource
27:12 @TestFactory - Creating Dynamic Tests
31:34 @Tag
32:51 @ExtendWith - 3rd Party Integrations
35:24 Outro

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[marcobehler]

► Timestamps
00:00 Intro
00:17 Project Skeleton Overview
00:35 Maven/Gradle Dependencies
01:52 Project Overview - Classes
02:11 First Test Class & Fixture
03:02 @Test methods
04:59 First Test Run
05:23 Mvn + Junit5 Issues
07:12 JUnit Assertions
08:35 AssertJ - assertThat
13:40 @DisplayName
14:41 JSON Unit - Asserting JSON
17:34 XML Unit - Asserting XML
20:29 Lifecycle Intro
21:10 @BeforeEach
21:29 @AfterEach
22:15 @BeforeAll / @AfterAll
23:13 @ParameterizedTest
24:12 @ParameterizedTest - @ValueSource
25:22 @ParameterizedTest - @CSV Sources
26:47 @ParameterizedTest - @EnumSource
27:12 @TestFactory - Creating Dynamic Tests
31:34 @Tag
32:51 @ExtendWith - 3rd Party Integrations
35:24 Outro

[renaldywijayaputra]

i like the way you said "and thats all for the boring tasks", thank you for the amazing course by the way🔥

[valeriotrinca]

You explain the concepts very well, I hope you will continue to create more tutorials on topics like these

[slimandahra]

i like your way of explaination...just to the point...nothing else and not too much empty talking..thank u and good luck

[MattThomasLondon]

Fantastic presentation - rare to see a white screen demo these days which to me works better for demos

[jeremiahsprague]

So glad I found your channel, high quality content, compared to other channels I've seen it has so much depth. Thank you!!!

[RobsonCassianoSoftware]

I've started being confident with Unit Tests, thanks!

[honsu]

Hey, Marco! Thank you for the great content! Your explanations are clear and quite sufficient. Plus you demonstrate all things using modern IDE and library versions. Super cool! I would really like to see your video about testing in general: unit vs integration tests, what is a test case, edge case, how many tests to write, what to cover with tests and what not to cover... maybe some short insight into CI/CD - how to run tests, see results, coverage... There are almost no good videos on youtube summarizing all these.

[asterixcode]

a video about integration tests would be amazing :) and as an extra an integration test from api endpoint, consuming from kafka and saving in a db :)))

[andreialexandru]

I learned a lot of things from you Mr. Marco Behler! I also follow your other channel, which also has some very good tutorials! Thank you! I wish you a lot of subscribers and likes because you're doing a great job!

[enfieldli]

I'm visibly confused on what to test rather than how to test lol, anyway, can't wait to see the upcomming unit/integration test videos!

[enfieldli]

"If you want to be passive aggressive, you can do this..." this line cracks me up, LMAO

[badripaudel]

Content is so qualified. Love to see more on testing 🙂

[rasulrzaeeff]

Marco you are really explain all topics so clearly. Good luck we all love your articles and videos ;) <3

[БогданЗараник]

What is the amazing content! I find your videos extremely useful. Why? You give a nice look around. For example, during learning Spring JDBC Template library, I got to know about what is connection pooling. And I really appreciate your video content.
Thnx, Marco!

[feici]

8:28 expected should be the first parameter of the assertEquals method. I often make the same error. 😀

[Kevin-grrs]

First to comment for the first time in my life. I have now completed one of my life goals 🚀

[БогданЗараник]

Beautiful content. Google has just suggested me your Gradle video. I was looking for it for several days. Let me go watching!
PS: Marco, could you also make video about Mockito? It would be niiiice.)

[ecrxnkx]

Very impatient to see a Quarkus tutorial from you.

[sidremey]

1:51 Strangely, IDEA did not add <scope>test</scope> even though you told it the scope you wanted in the dependency manager.