Test Driven Development (TDD) | Crash Course | 2020

Testing driven development is a skill that you must develop as a software engineer. In this crash course I will teach test driven development in simple steps.
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❤️ Thanks for watching

[@amigoscode]

► Clone repo here: github.com/amigoscode/software-testing ► Join Private Facebook Group - facebook.com/groups/45603...

[@LaMarLP55]

Question: I'm trying to learning TDD and I clone the Repo and in the right branch. However I'm using Visual Studio and when I try to run the test as you did I get this Error: Main method not found in the file, please define the main method as: public static void main(String[] args) any ideas

[@germanovalle802]

@@LaMarLP55 i had the same problem, my problem was when i click at checkout at branch 6-origin-test it got those same error, solution was new branch from selected, hope it works

[@ollysalanson9452]

Amigoscode you are one of the best teachers that I've ever learned from, not only that, you cover an absurd amount of topics. Thanks for always having my back!

[@joaopedrodeamorim2634]

As usual, fantastic. Cheers from Brazil!

[@amigoscode]

Thanks

[@1337ArMaAa]

Amazing tutorial :D ! Keep up the good work man!

[@AnnieBox]

I'm soooo happy that I found another treasure vlogger!!!

[@gerardoplus12]

Wow! I like this post. Very good, I learned a lot of things. I'll watch the other videos! You are a good teacher

[@renejacques8288]

Excellent for something I'm not even paying for.

[@peterwurst45346]

Good explanations and also a good video. Didn't you skip some parts or continue too quickly? In my opppinion the cycle of testdriven development is allways to create failing test, fix with the minimal amount of code possible and create the next failing test. So when you created the function returning just false and checking for true the minimal approach would be to change the returned value and than add a test checking for false...

[@andresgardiol8111]

I was looking for this comment, I think the same, in the first test he should make it return just true, and then create another test that force him to implement some part of the phone number validation logic

[@123cheke]

Great video as most you publish. Just one comment, what is the scenario for the case where you have a new public function, but inside it you have various private functions defined or private variables that call functions from other classes? How do you implement the unit test of each one? Regards.

[@closetothee3785]

36:34 This test code would fail if later the message was changed to something else (which is likely to happen). But it was not the original code needs to be fixed, but the test need to be fixed in this case. Maybe this is a problem with TDD, i.e., you may need to spend extra time refactoring your test code rather than the code to be tested. Also it seems to me that if you can take all possible conditions into account in your test code, you can actually ALREADY avoid bug in THESE scenarios. E.g. in the phone number validation example, you think of 2 conditions: phone number should start with +44 and it should have 12 digits and you put that in your test code. But if you're aware of these 2 conditions, you should already be able to put the check in your code to be tested. So in this sense the test code is redundant. On the other hand, if you don't take these 2 conditions into account, your code would still have bug although it can pass unit testing. It seems to me the test code would be more useful when later the original code to be tested is modified. So running the unit test can make sure the original functionality is not broken. But in reality it's not common to remove existing logic but more likely to add some new code over that. Take the phone number again for example, maybe later [phone]Ext123 appears as a valid phone number. In this case the original code would be modified to add this possibility. But in this case the test code would fail because it also needs to be modified.

[@techsolaris1]

Excellent video Nelson!

[@drcl7429]

Passes the Uncle Bob quality test.

[@mohammadjaouni]

جزاكم الله خيرا" . Jazaka ALLA khayran Bro

[@nayalashmohammad8490]

This is just what I needed! Could you also make a Golang OAuth API Tutorial (making a go API from scratch) Thanks.

[@amigoscode]

Great suggestion! I have been doing lots of Go lately so stay tuned

[@developerfilip]

As much as I hate writing tests, I'm hoping that you will convince me to want to do it more :D

[@amigoscode]

I also hate write tests for react apps :p

[@alexandrecolautoneto7374]

Keep with the good work Bro!

[@jainchetan68]

You are really doing good job, thank you so much.......

[@lowabstractionlevel3910]

Amazing clarity

[@SonOfMiguel]

Great video as always Nelson! Been looking to do more TDD during my internship. Thank you!

[@tonylegge7261]

I came back to this video after a year. Java is still not better looking but I now understand TDD better. This section of the course is not TDD. Sure, tests are being done before the actual coding but this does not mean TDD. TDD builds better code as it enables concentration on smaller segments of the code. Saying "I want to keep this video simple" is a total waste of time as there are many factors that need to be understood to do TDD. A side effect is that you can confidently release software just by having the tests pass. This means that you have to have confidence in the tests and doing this is hard. One of the great tragedies of our software age is that we spend more and more effort with rotting code bases, meaning the costs just spiral out of control. Done properly TDD will eliminate this. For a really good book on TDD get Clean Craftsmanship by Robert C Martin but be warned, you need to actually understand what is in the book to have any chance of proper TDD.

[@gurekodok]

This is amazing, thank you.

[@andres98]

Hey! First of all, congratz on an amazing video! I'd like to ask one question: Don't you think that parameterized test ruin the clean code idea of having one test for each assertion?

[@albinsjolin649]

Dude, you are doing such good content! Gods work!

[@amigoscode]

Thanks

[@Abhishek-tr4oi]

First one here... I was waiting very eagerly.Thanks🙂

[@amigoscode]

Hope you enjoyed it!

[@Abhishek-tr4oi]

@@amigoscode yes loved it♥️

[@pecewu]

Awesome work. Great Java tutorials! Keep it up.

[@amigoscode]

Thanks buddy

[@mouradnebhi8833]

Thx A lot My Friend, Baraka Allah Fik

[@carlosantovito185]

Hey Nelson nice work, well explained simple and straight. I want only to discuss the PhoneNumberValidator class, it's a utility class so for me it's not needed to declare it like a bean and put it in the constructor of various Service class. I think that it's better to make a utility class with static methods in it and use it like every other utility class, so no need to mock it in the test or pass it in the constructor, it's more flexible. Tell me what you think about this modification. Good work keep it up!

[@amigoscode]

Statics are evil and difficult to test when you reply on external dependencies

[@adesardaryan2142]

thanks for this awesome chanel nelson .

[@amigoscode]

Glad you enjoy it!

[@zakariahossain5149]

Another great course. Your crash course is like a pro level course. Thanks to Amigos.

[@amigoscode]

thanks Zakaria

[@saimonldable]

Very good example of mockito and TDD. Thank you so much!!

[@amigoscode]

You welcome

[@navinmeshram7541]

Your system is running freaking hot... MacBook Pro with i9 it is.

[@Goodtimesmk98]

The intro made me thought it was an ad, so i actually tried to skip the video in the first second xD

[@chiefxtrc]

why did you drop the TDD in the last part and wrote the service logic first and modified the tests to pass afterwards?

[@johncerpa3782]

this is the actual good video

[@toyinfatai8150]

wow! this is good. please can you do a TDD on devices like bikes?

[@houssemeddine6522]

Nice! Waiting for a video on interview questions/process for junior developers. That'd be awesome.

[@derrick7968]

Awesome video, Thanks alot.

[@amigoscode]

Glad you liked it!

[@amgaaamgalanbayr3267]

awesome work,thanks

[@farrukhahmedsid]

Playback speed 1.5x makes it much better.

[@mohammedriazkhan6083]

Great video. Possible video on Domain Driven Design?

[@amigoscode]

Great suggestion!

[@stuartbiggs1278]

Hi can you please update this, I tried to run the tests after branch 6 and I had no option to run them. I did clone the repo in to intellij

[@danielvega646]

Can someone explain me why the public keyword wasn't necessary at the PhoneNumberValidatorTest? Is due to the fact that no other module will use the class?

[@josephwong2832]

Thanks a lot nelson!!!

[@KKKZOZ]

Thank you!

[@salih.k8939]

Nice video as always

[@CubaBaila]

Awsome video. I enjoy the way you explain things... Thanks for that. Can you do a video like this but in python for web development? Have a great day

[@silverfang312]

Great video!

[@nasuhemreatessoy870]

You're awesome. Thanks for advice and courses

[@amigoscode]

You welcome

[@mega225]

Awesome video bro, best video I have seen so far about TDD.

[@mxledesma]

Good Evening at the end of the video you placed an @Service bean but how come you did that since you did not have a service package. or maybe i am overlooking something.

[@detaaditya6237]

That's a fantastic crash course sir! I have a question. When you add PhoneNumberValidator into CustomerRegistrationService, shouldn't we rewrite the test first, make it fail, and then start writing the logic in CustomerRegistrationService? Thanks in advance

[@JRiyaz]

Hi Sir! You are doing a great job. I request you to make a video on Microservices and How to secure Microservices. Thank you so much for the knowledge that you are sharing with us. Assalamualaikum!!!

[@TrendRain]

can you share your work environment. What are those 2 monitors? Maybe Amazon link?

[@daniellaerachannel]

amazing video !

[@amigoscode]

Thanks

[@cliffordowusuamponsah9532]

Please the discord link has expired? Can I get the link again?

[@44erso]

i have a generell question regarding "how to start a test". why does maven tests fails but intellijs not ? is it all about wrong configuration ?

[@ju_mamba]

When building the project I get the follwoing error: java: package javax.persistence does not exist

[@vijik2988]

Mockito and JUNIT testing is it included in software testing please tel me waiting

[@R3400l]

What's the font configured in your zsh? It's very readable.

[@elClubdelas7Cifras]

completed

your membrane keyboard is killing me. how can you use that thing? haha

[@tinoutech5016]

Thank you very much for the lesson , which design pattern you used here ?

[@paragkadam2169]

builder pattern

[@gafarraji]

Where can I get the full course

[@sivaganesh4489]

Please do crash course on react

[@ainigma100]

Great video!!! I have a question regarding assertThat. In the current example (16:02) you import the assert from Assertions.assertThat(org.assertj.core.api). In another video kzbin.info/www/bejne/fZbUZ2OFi951hsk (28:20) you import assertThat from AssertionsForClassTypes.assertThat(org.assertj.core.api). What is the difference between these 2 assertThat methods? How can we identify which one we will have to use? Thank you!!!

[@abdirahman1578]

nice video bro 👌🏾

[@renejacques8288]

I can't find the full course for TDD.

[@buddhika71]

great !

[@amigoscode]

thanks

[@pranavpothiwala4741]

I have good knowledge and exposure on testing manual and automatio Knowledge of api testing and mobile testing I am searching for job here in uk if you have any connects can you plz share with me Thank you Regards Pranav

[@adamoumamadou4946]

Thanks

[@amanpandia7912]

Shouldn't it be : fail test - > refactoring - > pass test

[@sub_zero_911]

A - A - A 👈 Your TTD Three Musketeers Arrange Act Assert

[@paulntalo1425]

Am getting this errors on building the project after checking out branch 6- integration testing in IntelliJ. What do I do??

[@amigoscode]

What error?

[@amigoscode]

What error?

[@paulntalo1425]

@@amigoscode Information:java: Errors occurred while compiling module 'testing' Information:javac 11.0.4 was used to compile java sources Information:02/06/2020 09:51 - Build completed with 4 errors and 0 warnings in 47 s 613 ms C:\software-testing\src\main\java\com\amigoscode\testing\customer\CustomerRegistrationService.java Error:(12, 19) java: cannot find symbol symbol: class CustomerRepository location: class com.amigoscode.testing.customer.CustomerRegistrationService Error:(15, 40) java: cannot find symbol symbol: class CustomerRepository location: class com.amigoscode.testing.customer.CustomerRegistrationService Error:(19, 37) java: cannot find symbol symbol: class CustomerRegistrationRequest location: class com.amigoscode.testing.customer.CustomerRegistrationService C:\software-testing\src\main\java\com\amigoscode\testing\customer\CustomerRegistrationController.java Error:(22, 26) java: cannot find symbol symbol: class CustomerRegistrationRequest location: class com.amigoscode.testing.customer.CustomerRegistrationController

[@arber2531]

@@amigoscode same!!!

[@paulntalo1425]

How possible can we be getting some of your courses on Udemy.

[@magicalvibez2037]

Why you want them on udemy, when you have the courses here for free?

[@paulntalo1425]

@@magicalvibez2037 This is just a sample chapter of the full course.

[@amigoscode]

Full course on my website

[@techme6053]

Pls provide us notes sir

[@thecallertotruth1121]

Hey Assaloumou alekum brother by the your face look great! I mean nice look

[@amigoscode]

Thanks brother

[@md.nasiruddinbhuiyan9268]

too much ads in a single video. :(

[@pabloinberlin]

I recommend having a look at how CakePHP deals with fixtures using factories: kzbin.info/www/bejne/hn-kYnahZ5KhjMU github.com/vierge-noire/cakephp-fixture-factories

[@AhmedSM8]

I would love to join your course but it is expensive bro $34.99

[@MrBayoumi]

it´s giving you a good start into a well paid job.

[@AhmedSM8]

@@MrBayoumi i bought it it is very good course🙆‍♂️

[@TALOS93L]

[@tandzan]

Guys, just skip first 10 min. Crash course, my class.

[@l4m5]

1st

[@amigoscode]

awesome

[@elrey1062]

First Viewer... lol

[@amigoscode]

hahah

[@elrey1062]

@@amigoscode Thanks for the video though, good stuff. You're the best.

[@tonylegge7261]

I can’t watch anymore..... what a horrible language java is. Thank goodness for Golang. BTW if you really want to learn TDD then get the book, Test Driven Development by Example written by Kent Beck.

[@amigoscode]

yep I love GoLang too

[@obaidnaqi2016]

Hi Amigoscode unable to join discord group the invitation link is not working