Testcontainers - From Zero to Hero. By

In this #noslides live-coding session, we will learn about Testcontainers from the ground up. We will get started with Testcontainers to boot up simple database containers for integration testing, use it for local development as a replacement for docker-compose, and cover how it fits into modern CI pipelines.
We highly recommend this session to any developer who wants to make the most out of using Docker containers for reliable and reproducible database, integration, or UI tests.
Speaker: Marco Behler
Marco works as a developer advocate at JetBrains. Based in Munich, Germany, he has over ten years of experience consulting in the Java and Spring ecosystems. He loves to share his knowledge about writing and building awesome software through guides, tweets, books, and talks.

[@vitaliiplagov]

Thanks, JetBrains team for this webinar! It was very good. I like the format of one person as a presenter and a second one is like a student for whom the presenter explains the topic. This format makes the watching more interactive. Hope to see it more in the future!

[@marcobehler1395]

Glad you liked it, thanks for the feedback!

[@pequetreques]

I utterly agree with Vitali. Such an amazing way of explanation! I loved it! 🫶

[@moeinsamarehshafeei2884]

I like how it starts with engaging question before self introduction

[@asterixcode]

Thanks JetBrains for bringing @MarcoCodes. The dude is a freaking great Java/Spring teacher. Thanks Marco!

[@MarcoCodes]

Thanks @Asterixcode! I actually work for JetBrains btw :)

[@michaelmihov1651]

You are wonderful guys. Thanks for making the java world so great!

[@abhilpnYT]

Loved the class. One of the best co-ordianted and explained classes. Thank You Marco and Gee for this ..

[@abdqadr]

Thank you for this illuminating tutorial. I’m not done watching but I’ve already learnt a lot

[@AnthonyGalati]

Really appreciate this video and JetBrains continuing them.

[@marcbeckers5819]

Thank you JetBrains and especially Marco for this very interesting session. I'm very excited and will start working on it tomorrow. This is exactly what I need for my integration testing. Keep up the good work.

[@marcobehler1395]

Thank you too, you are welcome!

[@BrianIvie]

Super informative! Thank you for doing this.

[@edwinmcc]

Thank you Marco for the wonderful presentation . . I did a small test and learned this using withInitScripts . . . so that I can initialise the database with some predefined set.

[@MaxTelepchuk]

Love the video! Thank you for a great session!

[@aravindreddymamidi]

Wonderful and thanks for doing this using Spring.

[@maxdancelife]

thank you Marco for excellent presentation.

[@piotrjazdzyk253]

Amazing explanation, thanks for sharing this!

[@DavidePavan]

Absolutely amazing!

[@kpradeep12]

Good to know about test containers. Nice talk and thank you

[@payaldas9455]

Thanks for this amazing content .

[@ebrahimzidan3875]

Literally Amazing tool and amazing tutorial :)) Thanks a lot :))

[@IgorNaumov]

I needed it right now and youtube proposed this video. This is absolutely helpful :)

[@intellijidea]

Glad it was helpful!

[@ke30_]

Again, extremely valuable video, thank you

[@SunilSingh1994]

Thanks for this very informative session

[@ayuobmousa6589]

oh my how i miss this ? I am in LOVE 😍

[@ashwaniahuja]

great learning video

[@flyLeonardofly]

Thanks for that video! At some point I found that my internal wtfs per minute were too high for giving testcontainers a try. Too much lurking config hell. But the video worked that out for me and that's great, thank you!

[@swethavarnaau7619]

Amazing content

[@ayuobmousa6589]

thnx that was awesome.

[@MrMuntasir66]

man this is simply wow

[@cccc2740]

Thanks a lot. And it means we can do away with lots of mockings we do...thats really great.

[@marekbugiel6893]

Many thanks!

[@cocoychang76]

thanks that was awesome

[@ihor_biedin]

This video is a priceless! ❤️❤️❤️

[@marcobehler1395]

:) Thanks!

[@kilianagboton4229]

Thank you so much.

[@vineethjoyson]

I just used testcontainer last week for both kafka and DB. And now google gave this video to me as I searched for that in google.

[@TheGuroguro12]

this is very cool

[@bartdart3315]

Very good presentation. Biggest gap for me was setting up the db code and data...if TCs have a way of loading the latter from the project it would be really nice to know.

[@marcobehler1395]

As mentioned in another comment here, you can either use Spring Boot's schema.sql/data.sql capabilities, or a tool like Flyway/Liquibase.

[@a.h.m.robiulhasan8975]

Thank you for the tutorial. I was trying to use testcontainers for HBase. I am able to start HBase container but my client cannot connect to HBase. Is there any example that I can use?

[@StefanSchade721229]

Great

[@sebastijanp3]

Gee was talking about ExtendWith annotation... So what is the class that you can use with extend with? Is there are docs reference to it or a blog about it?

[@fredgarcia8407]

would test containers work on all CI pipelines or only those specified in the testcontainers documentation?

[@anandjaisy]

Thanks for the webinar it was really helpful. @Trisha you were talking about the blog on abstract class extend, please let me know if you have written that blog.

[@lifeTechnicolorGuy]

have you found it?

[@anandjaisy]

@@lifeTechnicolorGuy No waiting

[@marcobehler1395]

It'll take some more time for Trisha to get this out.

[@tejas7041]

This was very informative and helpful but I got one question - How do we skip executing init script on reusable container? Like while using reusable container with init script, it runs the script every time the test start even though same DB is being reused. In init script I have create and insert statements so every time I run the test, it tries to execute the sql statements and fails with table already exists.

[@marcobehler1395]

The scripts, i.e. schema.sql etc. have nothing to do with TestContainers, i.e. it's a Spring Boot specific database mechanism. So, either you rewrite your SQL statements like "create table if not exists" or use a tool like Flyway or Liquibase which will essentially solve this problem for you.

[@tejas7041]

@@marcobehler1395 got it, thank you!

[@hendisantika]

How do we mix testcontainers, mysql & flyway?

[@pc9999able]

i can not use @DynamicPropertySource because i am still using spring 2.1.4, how can i connect spring to randomly created port container?

[@lifeTechnicolorGuy]

Have anyone found @Trisha post about not extending the abstract class?

[@clementboret5305]

also look for it....

[@marcobehler1395]

It'll take some more time for Trisha to get this out.

[@alvaroarenasu2]

@@marcobehler1395 Any reference to the doc that Trisha read about it?

[@mejrihoussem1202]

Any updates about this trick?

[@stackunderflow5951]

Also curious about it

[@USONOFAV]

How bout adding a Runtime shutdown hook and stop the container there.

[@anandjaisy]

Can we also have a session for end-end testing for microservices with the test container?

[@marcobehler1395]

Can you give a more specific example? How/where do you store your session state, what is your exact use case?

[@anandjaisy]

@@marcobehler1395 I was taking about another webinar on end to end testing with test container. In this webinar we had integration testing, can you please host another webinar to perform end-end testing among microservices

[@randoanon]

Thanks a lot for this session. I am currently stuck with a task that involves TestContainers and Karate. I was lost on where to start but now I feel confident to take it up.

[@draganmijatovic8503]

Can you put repo url in description 😇

[@Greatfulone]

I am a beginner developer and would love to see a list of how test containers adds to just configuring a DB image in Docker. Is it the JUNIT integration?

[@marcobehler1395]

I'm not sure I quite understood the question. Could you post it again?

[@Greatfulone]

@@marcobehler1395 Thank you so much for the reply. I thought about this question and I believe it stems from me not having done any testing against a database instance yet. Please disregard. I meant to remove it. You did mention some things in your talk, and I believe I just need to use it. I will reach out if I have any questions. Thank you so much. It was a very informative session.

[@AmNotLegend]

How the mechnism that makes the test wait until testContainer booting up? I didn't get it. is it automated?

[@intellijidea]

It's a polling mechanism that TestContainers implemented under the hood.

[@cccc2740]

Hey, I dont get it. How is test working without any test data populated?

[@AmNotLegend]

you forgot the github link

[@66tens41]

Good video! But trisha is very irrelevant for this video

[@java_couch]

testcontainers is rly bullshit, try to test ftp service and you will get what i am talking about....

[@toomaspark862]

@AfterAll container.stop ??

[@kuldipbajwa_]

thanks for this.... keep getting ERROR org.hibernate.engine.jdbc.spi.SqlExceptionHelper - Table 'test.STUDENTS' doesn't exist