Static, Unit, Integration, and End-to-End Tests Explained - Software Testing Series #1

"Prevention is better than cure."
Ever heard that one before? Turns out that it also applies to software. You can either fix bugs as you find them or write tests to prevent them from happening.
Writing tests has many benefits. Some of them are:
💤 You sleep better knowing that your system won't break overnight
🍻 Your colleagues feel more confident approving your code
💰 Companies want to hire you
Most developers will ignore this and keep writing code without tests, just like most people won't take care of their health until they're sick. But not you! Because you care about code quality.
This video will give you a much better foundation for software testing! We go over the following topics:
1. Static tests
2. Unit tests
3. Integration tests
4. End-to-End (E2E) tests
5. Why do we need them?
6. Which ones should you use?
Plus:
⚡️ It's only 15 minutes long
🧑‍🏫 It has code examples for each type of test
🧑‍💻 We made a GitHub repository for you to follow along
📚 Read the article: www.lucaspaganini.com/academy...
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📧 Email: [e-mail]
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CHAPTERS
00:00 Short Version
00:42 Introduction
00:55 What is Software testing
01:30 Static tests
05:50 Unit tests
07:19 Integration tests
09:05 End-To-End tests
12:22 Verdict
13:10 Conclusion
REFERENCES
1. Github repository with the code examples (GitHub): github.com/LucasPaganini/publ...
2. Static vs Unit vs Integration vs E2E Testing for Frontend Apps (Kent C. Dodds):
kentcdodds.com/blog/static-vs...
3. 20 Types of Tests Every Developer Should Know (Semaphore):
semaphoreci.com/blog/20-types...
4. Lint Code: What Is Linting + When To Use Lint Tools (Perforce):
www.perforce.com/blog/qac/wha...
5. Types of Software Testing: Different Testing Types with Details (hackr.io):
hackr.io/blog/types-of-softwa...
6. What is Unit Testing? (Autify Blog):
blog.autify.com/what-is-unit-...
7. Integration Tests (with examples) by Team Merlin (Government Digital Services, Singapore):
blog.gds-gov.tech/integration...
8. Types of Software Testing | The Complete List (Edureka):
www.edureka.co/blog/types-of-...
9. JavaScript Static Code Analysis & Security Review Tool (SonarQube):
www.sonarqube.org/features/mu...
10. How to Perform End-to-End Testing (Smart Bear):
smartbear.com/learn/automated...
11. What Is End-To-End Testing: E2E Testing Framework with Examples (Software Testing Help):
www.softwaretestinghelp.com/w...
12. ESLint no-var rule (ESLint documentation):
eslint.org/docs/rules/no-var
13. Airbnb style conventions (GitHub):
github.com/airbnb/javascript
14. Facebook style conventions for JavaScript projects (GitHub): github.com/facebook/fbjs
#softwaretesting #javascript #typescript

[@tabliqatchi6696]

Great thank you! Fun, informative and TOP NOTCH as always Lucas. ✌ I have a question about integration tests: At kzbin.info/www/bejne/in3GlKGBfrKanaM it sounds a lot like unit testing to me, because in unit testing we don't care about what's inside "the unit" and we just care about the input and output, right? In this test case also, I don't see "a combination of units" being tested, rather, it's only that we "know" (implicitly, when writing the test) that "a unit" has used another unit. That's it, it's not reflected in our tests. Sounds a bit smelly to me. May I know your opinion on it? Thanks again your videos are really really amazing. It's one of the email subscriptions that I actually care about lol.

[@LucasPaganiniWeb]

First off, thank you so much for your kind words! I sincerely appreciate it! Re. the integration test, I believe you are correct. Thanks for pointing that out! After rewatching it, my example was indeed a bad one. I'll pin your comment so that future viewers can see it. A better example would be to check how the state of two different classes changes as they interact with each other. Such as how Martin Fowler (see the "Regular Tests" chapter here martinfowler.com/articles/mocksArentStubs.html ) checks the state of a Warehouse instance as the user applies an Order instance to it.

[@learnbysakshi]

P0000000

[@EmbeddedMastery]

Loved the series, thanks for taking the time to explain these concepts ❤

[@MY-rl6pv]

very clear explanation the best so far i found after seaching one hour

[@hectorg362]

Thanks. I really need to start learning how to do testing. It's a part I've neglected a lot.

[@LucasPaganiniWeb]

Glad it was helpful!

[@rennnn...]

Perfect video thanks!

[@kalpanasharma8036]

Its really helpful...thanks a lot 🤝

[@LucasPaganiniWeb]

Glad to hear that!

[@yaregobrozek3725]

Niceeee!🔥

[@LucasPaganiniWeb]

Thanks 🔥

[@LucasPaganiniWeb]

🚨 Join the waiting list for my ✨Web Animations Course✨ to get a discount when the course launches: www.lucaspaganini.com/web-animations

[@memegalore257]

Damn, this is called "perfect video"🔥

[@LucasPaganiniWeb]

Thanks! That was a perfect comment haha

[@fabianorocha6320]

Muito bom 👍

[@LucasPaganiniWeb]

Thanks!

[@suprovatray7288]

@@LucasPaganiniWeb l

[@zubedashaik7431]

Please avoid back ground music

[@LucasPaganiniWeb]

Hey, thanks for the feedback! Could you elaborate more on that, please? What exactly is the issue with the music?