My biggest dev sin is not writing any unit tests for devRant :/

Two unit tests, no integration tests.

He's got a valid point

Hi, I am a Javascript apprentice. Can you help me with my project?

- Sure! What do you need?

Oh, it’s very simple, I just want to make a static webpage that shows a clock with the real time.

- Wait, why static? Why not dynamic?

I don’t know, I guess it’ll be easier.

- Well, maybe, but that’s boring, and if that’s boring you are not going to put in time, and if you’re not going to put in time, it’s going to be harder; so it’s better to start with something harder in order to make it easier.

You know that doesn’t make sense right?

- When you learn Javascript you’ll get it.

Okay, so I want to parse this date first to make the clock be universal for all the regions.

- You’re not going to do that by yourself right? You know what they say, don’t repeat yourself!

But it’s just two lines.

- Don’t reinvent the wheel!

Literally, Javascript has a built in library for t...

- One component per file!

I’m lost.

- It happens, and you’ll get lost managing your files as well. You should use Webpack or Browserify for managing your modules.

Doesn’t Javascript include that already?

- Yes, but some people still have previous versions of ECMAScript, so it wouldn’t be compatible.

What’s ECMAScript?

- Javascript

Why is it called ECMAScript then?

- It’s called both ways. Anyways, after you install Webpack to manage your modules, you still need a module and dependency manager, such as bower, or node package manager or yarn.

What does that have to do with my page?

- So you can install AngularJS.

What’s AngularJS?

- A Javascript framework that allows you to do complex stuff easily, such as two way data binding!

Oh, that’s great, so if I modify one sentence on a part of the page, it will automatically refresh the other part of the page which is related to the first one and viceversa?

- Exactly! Except two way data binding is not recommended, since you don’t want child components to edit the parent components of your app.

Then why make two way data binding in the first place?

- It’s backed up by Google. You just don’t get it do you?

I have installed AngularJS now, but it seems I have to redefine something called a... directive?

- AngularJS is old now, you should start using Angular, aka Angular 2.

But it’s the same name... wtf! Only 3 minutes have passed since we started talking, how are they in Angular 2 already?

- You mean 3.

2.

- 3.

4?

- 5.

6?

- Exactly.

Okay, I now know Angular 6.0, and use a component based architecture using only a one way data binding, I have read and started using the Design Patterns already described to solve my problem without reinventing the wheel using libraries such as lodash and D3 for a world map visualization of my clock as well as moment to parse the dates correctly. I also used ECMAScript 6 with Babel to secure backwards compatibility.

- That’s good.

Really?

- Yes, except you didn’t concatenate your html into templates that can be under a super Javascript file which can, then, be concatenated along all your Javascript files and finally be minimized in order to reduce latency. And automate all that process using Gulp while testing every single unit of your code using Jasmine or protractor or just the Angular built in unit tester.

I did.

- But did you use TypeScript?

Unit testing be like "all tests passed"

My worst nightmare:

it's not the code what's wrong during testing.

It's the unit tests themselves

Came home late last night and told my wife I'm skipping dinner to take a 1hr nap as it's going to be a long night of bug fixing and testing. Woke up, my wife and 1yr old son are already asleep. Saw the pic below posted on the wall above my work area at home. She's a teacher, she's never heard me mention it, and I don't use this method (I prefer music on my headphones). But she does know I lurk devrant so she must've browsed here while I was napping. Feels good. Code fixed, checked-in, unit tested and released for user testing.

So lot of people ask me here what is Testing?

Well, I have decided to post about it instead of answering every request individually as it is tiresome. So here we go...

- Why to test?
Testing is breaking down a piece of code so that all the possible logical and functional errors can be detected while in development phase, so that the disaster can be prevented in production.

- How to test a piece of code/software?
There are various types of testing like unit, sanity/smoke, functional, regression, performance, security, penetration to name a few. Each has it's own significance and to know more you can Google/DDG them.

- What to test?
We can test any and everything. You can test code, UI, UX, speed of application, database flow, logical flow, functional flow, et cetera.

Testing is an attitude, not a skill. Cannot be taught but only developed by one ownself.

To be good at testing, one needs to have a good design and business sense, apart from technical and functional knowledge.

Many will say, to test one needs to think outside the box. Fuck that. There is no box. Everything is a sandbox and do whatever the fuck you want to, to break things.

Most importantly, thinking from other person's perspective is critical as this helps you think what can an user do with your software. Trust me, humans are idiots and can literally fuck your software doggy style and make you wonder why your code isn't working?

To build an idiot proof software, we need to think beyond human levels.

Never think the obvious. NEVER.

Always try what you think can never happen. System will break, I promise.

Finding loopholes is way easier than you think. Fixing them is surely a challenge.

Moreover, to survive in corporate world leaning the processes is important. The SDLC cycle is what makes a software great.

And today I realised that no role is stupid. Testing is looked down upon in my country. Possibly, IT is the only field where testing has least value as compared to other places like food testing or automobile crash testing et cetera.

And I, myself used to think support is a stupid job requiring no skills. But today I talked to a friend in support and realised that they have more technical skills than a tester.

Everyone is important and we shouldn't look down upon any person or role. Nobody is superior, nobody is inferior. We all are equal.

Together we shall work as a team and a great teamwork can achieve wonders.

Hope this helps. Thak you for reading and do provide your feedback as it shall help me improve.

P.S.: last week somebody tagged me to a new comer's post seeking advice for testing. I don't recollect that so please tag them here again. Thanks.

Edit: I feel like and I might have, missed out some points so please excuse me for that.

Finally, a good use for Unit Testing :D

We have this stupid library at work. Its called Randomness, and its basically just a wrapper over the standard .NET System.Random class to help our devs generate random data for unit tests easier.

Debate about random data in unit tests aside.

I came across a bug in randomness. Theres a PickFrom function which gets passed an array, and returns a random element from the array. Problem is, it uses Random.Next to do this, and the max value was set to the array length, minus one.

Random.Next generates values inclusive of the min value, and exclusive of the max value. Arr.Length-1 as a max value, is wrong, the last element in the array would never be selected.

So i fixed it.

And proceeded to break dozens upon dozens of unit tests that were now testing from their full sets of data, and had actually been faulty for god knows how long.

Been lurking here for a while. Finally pissed off enough to post.

Been programming in Ada for nearly a decade now. One of the few younger devs who knows the language well. Have a large collection of libraries and tools written in it, open source. Done contract work. Looking to get out of my current line of work, which is medicine, because fuck this recent legal climate. I'm spending all my time dealing with legal compliance and it rapidly changing.

I see a job posting from a company looking for a programmer to mostly write testing stuff for clients. They mostly work with Ada. I've written a whole unit testing and integration testing framework. Perfect. Apply. "You don't have the required skills." Oh... K then.

Wanna guess what I was just offered as contract work. Same company. I guess i'm fucking qualified if you asswipes sought me out to ask me to fix your fucking bullshit.

What the hell is wrong with management and HR in recent years?

The moment I dared ask a colleague about unit testing, and instead of giving me a book or a look, he stashed his work, pulled over a second chair and we coded some, for an hour.

Rant.😒😡😠
I'm a college drop out. Left my college almost 1 year ago, taught myself php, js, nodejs, basics about servers and how it all works, currently learning angular, nativescript and a few small things.

People still taunt me about leaving my college. About how I should've at least completed my degree.

Student of my university don't even know how to code.
Like they only know simple hello world programs.
They have no idea about :
-Version control system
-Unit testing
-Code refactoring
-Cross-platform app development
-web hooks and REST API
-Stack overflow (Yeah, they don't know about it)
-and a whole ton of small things that you MUST know as a computer engineer like e.g. how to use Vim

I keep getting nagged about my choices and it frustrates me that I can't explain it to them cause they're dumb.

I mean seriously people! Can't you see the difference between me and an engineer who doesn't even know the difference between API and IDE?
I mean seriously?
They say it's APPLICATION PROGRAMMING INTERFACE so it's Qt creator or [any other IDE]

How can I deal with this kind of nonsense?

I'm from India, it's that bad here.

Anybody else a drop out? How did you handle it?
My parents are supportive but they too sometimes worry.

Two unit test suites. No integration testing.

Not so much screaming as staring in disbelief, mumbling profanity in his direction...

When my department lead said "I don't think this unit testing hype or code reviews make much sense, it's more efficient to just make a checklist and test the application yourself"

This was the QA department of an aerospace company, we wrote NDT software to do image recognition on xrays of alloy welds and micrometer laser measurements on fuel tank surfaces. Software which is quite mission critical, a single misrecognized welding fault could literally cost up to half a billion dollars — not to mention that it's a very sabotage & espionage sensitive industry.

After raising some hell he was replaced though.

THIS is why unit testing is important, I often see newbs scour at the idea of debugging or testing:
My high school cs project, i made a 2d game in c++. A generic top down tank game. Being my FIRST project and knowing nothing about debugging or testing and just straight up kept at it for 3 months. Used everything c++ and OOP had to offer, thinking "It works now, sure will work later"

Fast forward evaluation day i had over 5k lines of code here, and not a day of testing; ALL the bugs thought to themselves- "YOU KNOW WHAT LETS GUT THIS KID "
Now I did see some minor infractions several times but nothing too serious to make me refactor my code. But here goes

I started my game on a different system, with a low end processor about 1/4 the power of mine( fair assumption). The game crashed in loading screen. Okay lets do that again. Finally starts and tanks are going off screen, dead tanks are not being de-spawned and ended up crashing game again. Wow okay again! Backround image didn't load, can only see black background. Again! Crashed when i used a special ability. Went on for some time and i gave up.

Prof saw the pain, he'd probably seen dis shit a million times, saw all the hard work and i got a good grade anyways. But god that was embarrassing, entire class saw that and I cringe at the thought of it.
I never looked at testing the same way again.

Unit testing?

Unit testers be like: "looks like it's working"

Unit testing be like "all tests passed"

Dedicated to All Programmers Who hate Testers

Unit testing, unit testing, 1-2-3. Is this thing on...?

Worst bad practice..

Manager: I need code today
Developer (thinking) : let me give it without unit test. Anyways tester will test it.

Manager to tester: complete testing fast.

Tester(thinking): developer must have unit tested it. Let me skip it.
Enjoy testing completed.

God help clients.. 😊

"Trinidad And Tobago" changed their country name to "Trinidad & Tobago", and the .Net framework reflected that change.
So that's why this unit test is failing.

I GUESS BULLSHIT IS NOW INTERNATIONAL.

How can testing and debugging 10000 lines of uncommented, obfuscated code get worse?

Testing and debugging 10000 lines of uncommented, obfuscated code in visual studio.

This is my life now...

SM: what task do you have today?

Me: unit test, for yesterday’s task

SM: hm? Weren’t the QAs tested it yesterday

Me: yes, but it’s “unit test”

SM: so? Can’t you test it yourself?

Me: I can, but it’s UNIT TEST

SM: yeah I heard you the first time, the component is working right? Or is there any other point this testing for?

Me: *it seems this idiot doesn’t know what I’m talking about, blah blahblah blah (explaining what unit test is)

SM: hmm, but I think it’s not mandatory, it should be nice to have

Me: ... (I remembered of a place where dev gathers)

!rant

Friday Night! Let's do some crazy stuff......Unit Testing and wine drinking

OH MY FUCKING GOD! WHY THE FUCK WOULD YOU REWRITE A FUCKING PIECE OF CODE AND DON'T MAINTAIN ITS FUNCTIONALITY?
ARE YOU FUCKING MAD????

JUST SPENT 1 FUCKING HOUR TRYING TO FIGURE OUT WHY THE FUCK THE DATA WASN'T BEING PASSED TO REDUX STORE!

YEAH, UNIT TESTING SURE IS A FUCKING WASTE OF TIME YOU DUMB FUCKING IDIOT THAT HAS MASHED POTATOES FOR A BRAIN!

GO ROT IN HELL YOU PIECE OF SHIT!!!!

NOW IF I DON'T FIX THIS SHIT MY ASS IS ON THE LINE BECAUSE I MADE THE FUCKING FUNCTIONALITY THAT YOU BROKE?? NO FUCKING WAY!

I DON'T CARE IF YOU ARE MY BOSS, I'M GONNA GIT BLAME THE SHIT OUT OF YOU IF ANYONE PISSES ME OFF!

When you write your own unit tests, and feel like an actor doing their own stunts.

No? Anybody?

As a Java developer, reasons to kill other programmers:

- static mutable variables
- WRITING to static mutable variables
- API call with Framework X didn't work. Add Framework Y along with X and try that. Wrap X in try/catch statement. Catch block fires framework Y.
- six, seven, ten levels of nested code. Zero thought put in organization
- 6K LOC Java files
- spring (singleton? Maybe) object assigning values in static mutable (see pt.1)
- a couple of unit tests in code base that no longer work. Zero unit tests in new code
- unit testing disabled in CI pipeline
- empty catch blocks
- pass mutable data between threads. Modify in various places concurrently.

No boss... For the fucking millionth time: unit tests are not a waste of time.

You keep testing everything manually and hoping that you tested everything every time and praying that there are no bugs IS THE FUCKING TIME WASTE

My boss just can't fucking wrap his head around automated tests... I'm trying hard... Gonna try harder...

My devGoals for 2018:
- Build a RESTful API with NodeJS just for learning.
- Finish my first product (electronics sideproject).
- Convert more people to use CraftCMS or at least not use Joomla or WP.
- Get a raise.
- Add Continuous Integration to more projects.
- Add more unit testing where appropriate.
- Create and release a mobile app.

To be continued...
*playing to be continued meme sound*

My friend and boss，told me he would teach me code 2 years in a half ago.

I didnt know what css or html was and i used to call java javascript.

I can know create my own module with webpack， have my automated doc， use react， redux， he taught me linux， git，unit testing， databases，docker， and so on...

Im not an expert in any of it butbi know what they are for and can play with them more or less comfortably.

The best advice he ever gave me was:

“coding is not about coding. We are like the greath painters of history. They were great at painting but even more at creating. If you have no creativity， you can paint as well as you want， its worthless.”

Sometimes the testers do a good job, sometimes.. 😂😂

I don't understand unit testing, you won't explain it to me and I will never use it properly.

Go fuck yourself, internet of modules and node.js and fucktards who think they write good code but suddenly my simple webapp is 200mb big without even adding any content yet.

User: “I’ve tried hundreds of different names. How come all the usernames are registered?!😤”
Developer: ”I’m quite confident about my code. Can’t find any issue in this login form.🤔”
QA: “It passed all unit tests. We did a comprehensive testing on live server by registering all the possible names. What can go wrong?🙀”

Today I'm going to work on my side project that I haven't touched in weeks.

I want to utilize Angular 2 which means I'll need to learn TypeScript. I also want to use the new .Net Core and EF Core 1.0. Oh and I want to handle authentication using JWT!

Wow, that's gonna be a lot of effort to get things off the ground... maybe instead I'll use this time to learn some new concepts. Maybe watch this episode of Fun Fun Function, or maybe this video on writing Assembly code for an app on Raspberry Pi, that sounds cool!

Actually, you know I should really teach myself dependency injection and unit testing for once. I'm so behind the times.

Well, really I should finish this book on design patterns first. Ok, where did I leave off? Page 20 I think... ehh... maybe I'll just work on my side project.

Tomorrow... tomorrow, I'll work on my side project.

There's so many cool technologies too look into now a days, but so little time.
-docker
-laravel
-.net
-react
-es6/es7
-elasticsearch
-redis
-unit testing

Where do i download more hours to add to my days?

Testing done right! 😂😂

Dynamically typed languages are barbaric to me.

It's pretty much universally understood that programmers program with types in mind (if you have a method that takes a name, it's a string. You don't want a name that's an integer).

Even it you don't like the verbosity of type annotations, that's fine. It adds maybe seconds of time to type, which is neglible in my opinion, but it's a discussion to be had.

If that's the case, use Crystal. It's statically typed, and no type annotations are required (it looks nearly identical to Ruby).

So many errors are fixed by static typing and compilers. I know a person who migrated most of the Python std library to Haskell and found typing errors in it. *In their standard library*. If the developers of Python can't be trusted to avoid simple typing errors with all their unit tests, how can anyone?

Plus, even if unit testing universally guarded against typing errors, why would you prefer that? It takes far less time to add a type annotation (and even less time to write nothing in Crystal), and you get the benefit of knowing types at compile time.

I've had some super weird type experiences in Ruby. You can mock out the return of the type check to be what you want. I've been unit testing in Ruby before, tried mocking a method on a type, didn't work as I expected. Checked the type, it lines up.

Turns out, nested away in some obscure place was a factory that was generating types and masking them as different types because we figured "since it responds to all the same methods, it's practically the same type right?", but not in the unit test. Took 45 minutes on my time when it could've taken ~0 seconds in a statically typed language.

Manager: Unit testing is not our priority.
Me: What exactly is our priority?

1. Slack. Pretty good chat app for dev companies, I use it to prevent people standing next to my desk 40 times a day.

2. Unit testing tools, especially when fully automated using a git master branch hook, something like codeship/jenkins, and a deployment service.

3. Jetbrains IDEs. I love Vim, but Jetbrains makes theming, autocompleting & code style checks with mixed templating languages a breeze.

4. Urxvt terminal. It's a bit of work at the start, but so extremely fast and customizable.

5. Cinnamon or i3. Not really dev tools, but both make it easy to organize many windows.

6. A smart production bug logger. I tend to use Bugsnag, Rollbar or Sentry.

7. A good coffee machine. Preferably some high pressure espresso maker which costs more than the CEO's car, using organic fairtrade hipster beans with a picture of a laughing south american farmer. And don't you dare fuck it up with sugar.

8. Some high quality bars of chocolate. Not to consume yourself, but to offer to coworkers while they wait for you to fix a broken deploy. The importance of office politics is not to be underestimated.

Well now, I wouldn't want to mention anyone specific since talking about someone behind their back and calling them 'weird' isn't very nice. 🙄 But absolutely HYPOTHETICALLY speaking, if I HAD a weird coworker, they would probably...
- ... strut about the office, telling all how great yet underpaid their work is
- ... write lots of 'concepts' because coding is for lowly programmers
- ... insist that the code they have to do when boss is looking is simply too complicated for unit testing, and 'that's great!'
- ... brag about their/wear to work a ridiculous array of ties in every colour imaginable, when everyone else shows up casual

- ... trap people into listening to them talk for hours about...
-- ... ties
-- ... their misspent youth
-- ... how awesome they are/were/will be
-- ... why it's a good idea to eat cheese

- ... never let me forget I'm female, coz *insert BS reasons why all devs must by nature be male here*
- ... send me little unsolicited notes and mails with funny (sexist) jokes *har har*

- ... be let go, at which point everyone else discovers why they had so much time that they could spend chatting away at the watering hole
- ... earn the eternal hatred of anyone picking up the pieces of their 'work'
- ... try to steal our customers away who will laugh in their bloody face

Just my theory, of course..

Just need to get this off my chest. Started a new job 3 weeks ago at a company that has been around ~18 years, it is only recently that they have started to grow more rapidly. I was brought in under the guise that they wanted to embrace change and better practices and so said I was up for the challenge.

In my 2nd week I was asked to produce a document on tackling the technical debt and an approach to software development in the future for 3 consultants who were coming in to review the development practices of the company on behalf of the private equity firm who has taken a major stake in the company. I wrote the document trying to be factual about the current state and where I wanted to go, key points being:

Currently a tightly coupled monolith with little separation of concerns (73 projects in one solution but you have to build two other solutions to get it to build because there are direct references.).

Little to no adherence to SOLID principles.

No automated testing whatsoever.

Libraries all directly referenced using the file system rather than Nuget.

I set out a plan which said we needed to introduce TDD, breaking dependencies, splitting libraries into separate projects with nuget packages. Start adhering to SOLID principles, looking at breaking the project down into smaller services using the strangler pattern etc. After submitting what I had written to be part of a larger document I was told that it had been tweaked as they felt it was too negative. I asked to see the master document and it turns out they had completely excluded it.

I’ve had open and frank discussions with the dev team who to me have espoused that previously they have tried to do better, tackle technical debt etc but have struggled to get management to allow them. All in all a fairly poor culture. They seem almost resigned to their fate.

In my first 2 weeks I was told to get myself acquainted and to settle myself in. I started looking at the code and was quite shocked at how poorly written a lot of it was and in discussions with my manager have been critical of the code base and quite passionate and opinionated about the changes I want to see.

Then on Friday, the end of my third week, I was invited to a meeting for a catch up. The first thing I was told was that they felt I was being too openly critical in the office and whether I was a good fit for the company, essentially a stay or go ultimatum. I’ve asked for the weekend to think about it.

I’ve been a little rocked by it being so quickly asked if I was a good fit for the company and it got my back up. I told them that I was a good fit but for me to stay I want to see a commitment to changes, they told me that they had commitments to deliver new features and that we might be able to do it at some point in the future but for now I just needed to crack on.

Ordinarily I would just walk but I’ve recently started the process to adopt kids and changing jobs right now would blow that out the water. At the same time I’m passionate about what I do and having a high standards, I’m not going to be silenced for being critical but maybe I will try and tackle it in a different way. I think my biggest issue is that my boss who was previously a Senior Developer (my current position) has worked at the company for 12 years and it is his only job, so when I’m being critical it’s most likely criticising code he wrote. I find it hard to have the respect of a boss who I had to teach what a unit test was and how to write one. It makes it hard to preach good standards when by all accounts they don’t see the problems.

Just wondering if anyone has suggestions or experience that might help me tackle this situation?

The weird feeling you get when you ask a colleague what he recommends as unit testing framework for C# and his first response is: "What do you mean by 'unit testing'?"

After 10 years of development, and 7 years of being happily married, I'm in love again... With Unit Testing.

"We don't have time for writing tests"
"Yeah we could write them but only if the client paid us for that"
"You can just test new features manually!"

- Most devs of our mobile team.

Every day they're fighting with bugs and when they're fixed, a couple more pop out of nowhere.

Dear god help me.

"I'm almost done, I'll just need to add tests!"

Booom! You did it, that was a nuke going off in my head.

No, you shouldn't just need to add tests. The tests should have been written from the get go! You most likely won't cover all the cases. You won't know if adding the tests will break your feature, as you had none, as you refactor your untested mess in order to make your code testable.

When reading your mess of a test case and the painful mocking process you went through, I silently cry out into the void: "Why oh why!? All of this suffering could have been avoided!"

Since most of the time, your mocking pain boils down to not understanding what your "unit" in your "unit test" should be.

So let it be said:

- If you want to build a parser for an XML file, then just write a function / class whose *only* purpose is: parse the XML file, return a value object. That's it. Nothing more, nothing less.
- If you want to build a parser for an XML file, it MUST NOT: download a zip, extract that zip, merge all those files to one big file, parse that big file, talk to some other random APIs as a side-effect, and then return a value object.

Because then you suddenly have to mock away a http service and deal with zip files in your test cases.

The http util of your programming language will most likely work. Your unzip library will most likely work. So just assume it working. There are valid use cases where you want to make sure you acutally send a request and get a response, yet I am talking unit test here only.

In the scope of a class, keep the public methods to a reasonable minimum. As for each public method you shall at least create one test case. If you ever have the feeling "I want to test that private method" replace that statement in your head with: "I should extract that functionality to a new class where that method public. I then can create a unit test case a for that." That new service then becomes a dependency in your current service. Problem solved.

Also, mocking away dependencies should a simple process. If your mocking process fills half the screen, your test setup is overly complicated and your class is doing too much.

That's why I currently dig functional programming so much. When you build pure functions without side effects, unit tests are easy to write. Yet you can apply pure functions to OOP as well (to a degree). Embrace immutability.

Sidenote:

It's really not helpful that a lot of developers don't understand the difference between unit, functional acceptance, integration testing. Then they wonder why they can't test something easily, write overly complex test cases, until someone points out to them: No, in the scope of unit tests, we don't need to test our persistance layer. We just assume that it works. We should only test our businsess logic. You know: "Assuming that I get that response from the database, I expect that to happen." You don't need a test db, make a real query against that, in order to test that. (That still is a valid thing to do. Yet not in the scope of unit tests.)

Skipping unit tests and documentation ...

I'm starting to recover after not writing a single test for the first 6 years of my professional carrer (wasn't taught in school, didn't know where to start, man I should have really found a mentor earlier), and barely any documentation (I was the sole developer for several years, and just didn't get into the habbit).

Unit testing is still not a habit, but now I have the first tests to serve as an example and an idea what/how to test at least, and I try to get every new "framework" function/class at least commented properly.

Wish me luck

After working 3 years in my current job and my boss hating anything to do with unit testing etc, I used my spare time to refactor our Makefiles to allow for the creation of unit and integration tests. I technically didn't tell my boss about it, so my heart was in my throat when he Skyped me with 'what did you change in ...'?

After having bashed any workflow with testing in it, I showed him the new workflow and automatic testing in Jenkins and he was actually enthousiastic, just like all other employees! I was hailed a hero in the R&D department, after all this time we can finally write universal tests. :D

Today I started work on a new project that contains a lot of legacy. I asked the developers about unit testing javascript and was told that not only is there none in place, but it's not worth adding any in.

At first, I grimaced and thought fair enough. This is their codebase, it's their choice. I've now been thinking about this for a few hours and have instead decided that screw those guys, I'm adding in a testing framework, a module pattern that's compatible with the existing code, and unit testing the crap out of it. If they don't want it they can refactoring it out, but I can't bring myself to intentionally deliver code I know is crap.

I WILL FORCE CODE QUALITY ON THEM.

When you are running some unit test cases with less code coverage

Ignorant, stale old Dev I work with discovers huge bugs with a new project. A few weeks earlier I had brought up the fact that he does zero unit and behaviour testing and got basically laughed at.......

Not doing unit tests

I am a huge proponent of unit testing, but damn it can be so fucking difficult at times!

Not all unit tests are created equal...

Today I had to write a unit test to test a method that internally used a random number generator...

Aha
Ahaha
Ahahaha
My test was literally just assertNotNull...

God: you qualify for reincarnation. What advice from past life do you want me to retain in your memory ?
Me: never forget to write those unit tests!

just saw a contract job "Write tests for existing codebase"....

Well shit....there goes my weekend.

Preaching about unit testing but never doing it myself

Some ranters get pissed with junior dev who thinks unit testing is not necessary and a waste of time. While I'm here convincing all senior devs in my office why testing is important. I gave up.

Found out today that the company wants to hire the consultant that thinks that unit testing is a waste of time, CI and code coverage metrics are useless, DI is mumbo-jumbo. But 500+ line procedural methods are fine, you just start the method with a small essay of a comment on what it does...

Greatest dev sin.... oh god there’s been a few over the years.

Hmm 🤔

I guess one of the top 5 would be making an ecommerce platform without unit testing or documentation for the front or backend. 🤫

Mind you it runs smoothly to this day so I was doing something right 😦

"Coding se darr nahi lagta Sahab, Unit Tests likhne se lagta"

"Coding doesn't scare me Sir, writing Unit Tests does"

As a fresher, UTs scare me.

Unit testing is bullshit. Junior spotted!

Not sure if it was 2016 or late 2015, but it's a fun story anyway (and if it's not you'll at least learn something from it).

Back at the time I was quite new to unit testing (weird how it has become second nature in a years time). I was writing some software that was supposed to send out some SMS to customers. Of course this had to be tested. However, it was a bit difficult to test (or so I thought) without actually receiving an SMS to know if it was sent. So I decided to use the live API key to make sure the sending of SMS was actually working correctly. I tried it a few times but didn't receive an SMS. So I kept working on it and running tests.

The testing setup I had at the time was just a continues loop that went through all tests to make sure it all still worked (I've moved to only checking on file changes now, but that is besides the point). Keep in mind I was still running these tests, in a loop, with the _live_ API key.

So the end of the working day arrives and I go home and sit in the train. All of the sudden I receive some test SMS. I was thinking "hey nice, it did work". Then I started receiving more. It soon turned out to be an alarmingly big amount of SMS. It stopped around 100, but don't think that was the end of it. Oh no. I had changed the number to send the SMS to from my own number to a different number (+31612345678 to be exact, which I found out later isn't an actual phone number. I really hope I was right about that). I was beginning to become nervous, but there wasn't much I could do.

The next day I returned to work and checked the API for sent SMS. Turns out I had sent a couple of thousand (I think between two and three thousand) SMS in a couple of hours. Most of them to the test number I had supplied.

This probably cost the company a couple of hundred euros. Luckily my colleagues and team leader all thought it was pretty funny, but did tell me not to do it again. And I haven't of course.

Lesson learned: don't use live API keys during testing (among other things :)).

So yeah that was probably my worst dev experience.

Nobody Unit Tests.

So it's already 1:15am late night and I am all tucked up in bed watching Roy Oshrove talk on unit testing and ways to write correct unit test. My friend walk in and finds me in bed watching this. He seems surprised as what are you doing ??
I replied it is an interesting talk on unit testing.

He says are you mad? Who the hell does unit testing ?
People out there are spitting on unit test code base. And they don't write unit tests.

Nobody unit tests.!!

I stay calm. I know there is no point of arguing. I said I'll sleep in some time.

And he works as developer, a job that I applied an never got because of connections.

I am optimistic someday I'll find a job that I deserve. The developer world is in danger. !!!

The fucker complains when someone doesn't write unit tests, meanwhile he tops any new code he writes with a @codeCoverageIgnore annotation ... 😒😒

Dear coworker,
when I asked: "So, how does it work?", I didn't expect the answer to be: "Well, you push this button, wait three seconds and when it's finished, this LED turns on."
I was hoping for a more in-depth description (like, the way you'd consider me to be seriously interested in your work or learning from you) along the lines of "Well, you see, I have written this CLI-Tool here, which connects to the adapter and parses the contents of the file via serial interface to the on-board controller. This controller performs an integrity check of the device and then decides whether to flash or not. The testing unit itself checks if its being programmed with the right parameters."
Of course I know how a programming device works but I was interested in your solution in this special case ... so I think I'll just check the doc later if there'll ever be some.

Fucking first rant here:

So we tried to teach Two new colleagues to typescript and git and testing and stuff and we have a SPOC “which claimed to be very technical”. The SPOC’s task is to keep an eye on the work, and today we have had a review...

After two weeks, the created multiple branches into our git, all with one commit of 400 LOC changed, no merge requestet, issue in Redmine set to “closed”.
Well, by the way they were supposed to write Unit tests for our app.
But I thought, ok, we’ll check their branches.

Their tests all passed (cz) but man, the app didn’t and on compilation there were errors, the app is broken. Damn.

Is it really so far off, that even of They wrote tests, that the app should still work?
AND I THOUGHT IT IS COMMON SENSE. Damn!
Guess how needs to fix it

Apart from having a baby which is the hardest in the world，i think the hardest project is to learn to code.

I studied philosophy and anthropology but gamed a lot. Me and a good mate decided to work together and he told me hed teach me coding.

The guy is a genius but he is a reckless rebel genius who tells everybody to fuck off.

So，after 1 year in a half of intense coding where i had to learn linux， networks， and im not shitting you html and css as well and of course javascript.

He has now put me on， for the last 2 month， in charge of our front end backoffice. I have to design forms that do the right http requests，do the unit testing， play with redux-form， react-redux and he has thrown me into the basic java backend so i can begin working with entites and how i serve the data and link it to the database and even create tables.

Every time i fail hemakes me remake everything.

I actually came on devrant to study the dev community (i always gamed a lot but this is a whole different community). The dev community is pretty awesome and unique.

Anyhow， i remember when i saw him as me to complete an exercise and i didnt event know which words were the reserved language ones and those i could use myself. It was like fucking magic.

When your code has had it with test too.

Unit testing in JS be like...

When your product owner tells you to forget about architecture and unit testing, "just push it out"...

unit testing

Is unit testing necessary?

*Completes unit testing training*
*Achieves fresh perspective*
*Looks at game code*
*Prepares to right unit tests for that problem method*
*Stares at code as crickets chirp*

Code less.

Better project management.

Learn proper unit testing.

I started my actual gig as CTO of construction group (Innovation Hub) a year ago. And it was a hell of a ride, implementing kind of a scrum-ban for project management, XP, peer-reviews, a git-flow, git commit message formats, linters, unit testing, integration tests, etc...
And it's the fun part because with the CIO we had to drive the board to do A LOT of changes in their IT/Innovation drive.

But in one year there is a lot of KPI that went up :
* Deployment: When I arrived it took three stressful days to deploy a new version of one application, once a month. Today we do it every week, and it takes three annoying hours.
* We had no test. NOTHING! Today we have 85% code coverage for the unit test, and automatic integration tests run by our CI server every day.
* We had almost no documentation. Today our code is our documentation (it automatically extracted and versioned).
* We had 0 add value in the use of git. With commit messages as "dev", "asked task", inside jokes and a lot of "fix" and "changes". Today we have a useful git, and we even use it to create our deploy changelogs (and it's only mildly annoying!).
* More important, the team is happy! They get their purpose, see betterment in their tech mastery. They started doing conception, applicative architecture, presentations, having fun.

There is still a LOT of bad things we are still working on, and trying to solve (support workflow and betterment). But seeing what they already did, I'm so proud of my TEAM! I'm a fucking asshole, workaholic, "just do it" kind of guy. But they managed to achieve so much. Fucking PROUD!!

There is always that one guy.. who doesn't give a fuck about testing and thinks he's not responsible for them...
Le Guy: lemme just push ma new code maan
Jenkins: Unit Tests failed - pls fix
Le Guy to the one who cares about testing: hey fuck uu, ur stupid tests are failing... fix them its ur problem.
*sigh*

My new favourite commit message:

"All changes as of 18th Sept"

How tremendously useful? There I was looking to know what changes were made to enable a feature / service, thought I could look for that in the commit message, but no you've given me a much more efficient way of finding out.

I simply need to download the contents of your memory, find out what date you made a change, and then dig through the massive commit to find the piece of info I need.

Forget experience using Git features, managing merges, following Git flow, or even any other SCM ... how can people be so tick when it comes to recording what they've done.

Heres a little cheat sheet for those struggling:

- Commit message
Describe what you actually ****ing did. Don't tell me the date or the time, thankfully Git records those. Don't tell me the day of the week, if I need to know I can figure that out, just tell me what ... you ... did.

- Feature branch names
Now this is a tricky one. You might be surprised to know that this isn't in fact suppose to be whatever random adjective or noun popped into your head ... I know, I too was shocked. The purpose of this is to let other people know what new feature is being worked on in this branch.

- Reusing feature branches
Now I know you started it to add some unit tests, and naming it "testing" is sort of ok. But its actually not ok to name it testing when you add 3 unit tests ... then rip out and replace 60% of the business logic. Perhaps it would have been wiser to create a new feature branch, given you are now working on a new feature.

Lead: how long do you think it would take to fix the bug?
Programmer: 20 mins with a testing
**Lead an hour later**
Lead: I don't see PR for the fix
Programmer: the fix broke all the unit tests so I am fixing them now.

Need to rant. I am doing programming 2 at university with java and the assessment is to make a card game. The subject is shit and is basically going over loops, variables, conditionals ect which we learned in introduction to programming and programming 1.

This leaves little time for oop principles, design patterns inherentance and all other useful stuff.

I am dedicated to making a career in programming and want to do my assessment the correct oop way. Although the lecturer doesn't care and is instructing the class to do it procedurally and shit.

I could do the program really quickly the shit procedural way and still get full marks but I feel dirty as hell coding like a scrub. So I'm 60 hours in on this assessment and there are so many classes and even more because of unit testing (we don't have to unit test) and I am spending way too much time.

My code is beautiful, my classes are tiny and maintainable, easy to modify and I'm learning so much about how to code oop the correct way with the help of a mentor and someone I look up to. But god does it take forever to code this way. And soo many iterations and redesigns because I'm still learning.

It's almost done but now I have another programming assessment for another class I'll have to do the dirty way because of time restraints and other assessments.

Sorry for wall of text but this is stressing me out 😛

Not learning unit testing... I've heard so many good things about them, but I've never learned how to inple.e t and use them.

Maybe I can start now, can anyone point me in the write direction?

Unit-testing is underrated

Let's get real serious for a second here guys... How do you unit test a unit testing framework?

Before i found out about unit tests i'd create a console application where i'd test the functions

Good times

After 3 years of college, I have finally discovered the magical wonder of unit testing. All it took was me building my own application on the side to motivate myself to actually do it!

I think I need to start writing unit tests for my unit tests...

First software refactoring in the company I worked for. No test environnement because "who needs it?", no unit testing, no comments, had to make sql updates and shit, was scared all day long that something would fuck up.
"Fuck fuck fuck, forgot a part of the where !" Had to fix everything quickly so no one would notice, no coffee/smoke pauses. On top of that, got a ton of retarded requests from the PM and other technicians working with me like "hey boi, could you add an icon to every button we made? There's like a thousand, we need it for tonight, our client will come visit us and I want to show him a better interface blablabla"
And since I was an intern, I couldn't refuse, had to work like a prostitute in virgin-land, and for what?

"Oi, you did good, now do other stuff"

I would describe the test project i inherited as a watermelon test suite,

Green on the outside..............................

Red on the inside

During one of our 'pop-up' meetings last week.

Ralph: "The test code the developers are checking in is a mess. They don't know what they are doing."

ex.
var foo = SomeLibrary.GetFoo();
Assert.IsNotNull(foo);

Fred: "Ha ha..someone should talk to HR about our hiring practices. These people are literally driving the company backwards."
Me: "I think unit testing is complete waste of time."
- You could almost see the truck hit the wall and splatter watermelon everwhere..took Ralph and Fred a couple of seconds to respond
Fred: "Uh..unit testing is industry best practice. There is scientific evidence that prove testing reduces bugs and increases code quality"
Ralph: "Over 90% of our deployments are rolled back because of bugs. Unit testing will eliminate that."
Me: "Sorry, I disagree."
- Stepping on kittens wouldn't have gotten a worse look from Fred and Ralph
Fred: 'Pretty sure if you ask any professional developer, they'll tell you unit testing and code coverage reduces bugs.'
Me: "I'm not asking anyone else, I'm asking you. Find one failed deployment, just one, over the past 6 months that unit testing or code coverage would have prevented."
- good 3 seconds of awkward silence.
Ralph: "Well, those rollbacks are all mostly due to server mis-configurations. That's not a fair comparison."
Me: "I'm using your words. Unit tests reduces bugs and lack of good tests is the direct reason why we have so many failed deployments"
Boss: "Yea, Ralph...you and Fred kinda said that."
Fred: "No...we need to write good tests. Not this mess."
Me: "Like I said, show me one test you've written that would have prevented a rollback. Just one."
Ralph: "So, what? We do nothing?"
Me: "No, we have to stop worshiping this made up 80% code coverage idol. If not, developers are going to keep writing useless test code just to meet some percent. If we wrote device drivers or frameworks for other developers maybe, but we write CRUD apps. We execute a stored procedure or call a service. This 80% rule doesn't fit for code we write."
Fred: "If the developers took their head out of their ass.."
Me: "Hey!..uh..no, they are doing exactly what they are being told. Meet the 80% requirement, even if doesn't make sense."
Ralph: "Nobody told them to write *that* code."
Boss: "My gosh, what have you and Fred been complaining about for the past hour?"
- Ralph looks at his monitor and brilliantly changes the subject
Ralph: "Oh my f-king god...Trump said something stupid again ..."

At that point I put my headphones on went back to what I was doing. I'm pretty sure Fred and Ralph spent the rest of the day messaging back-n-forth, making fun of me or some random code I wrote 3 years ago (lots of typing and giggling). How can highly educated grown men (one has a masters in CS) get so petty and insecure?

My daily life : Everything is working until I start to code...

Not really a rant but I always hated unit testing because I always had to write it for code that has been written ages ago. I started a personal testdriven project a couple of months ago and I now must admit, I kinda love unit testing. My code is way better, more readable, more stable and last but not least, i know when i broke something.

Once again, I have to go with the guy that, after seeing my horrible (I can't highlight this enough) code, decided that even I wasn't hopeless, and went on teaching me the basics of software engineering, top-down design and unit testing. All of this in two days, but it gave me the motivation to work on it, and look at me now: I'm a devRanter :')

So I decided today was a good day to manually compile python 3.6 for my raspberry pi as it hasn't yet been added to any supported repo's. Site says: this will take approximately 30 minutes.
3 hours later: "starting unit testing"

I'm so happy that I have the first working version of the program. Just couple of bug fixing and unit testing and I'll push the code to production.

Day 1: Just couple of bug fixing and unit testing and I'll push the code to production.

Day 2: Just couple of bug fixing and unit testing and I'll push the code to production.
.........

Day 200: Just couple of bug fixing and unit testing and I'll push the code to production.

😞

When you have to sit with a developer and walk them through coding a solution step by step, but they have more experience than you in your field. I had to show them how to unit test the thing they wrote properly as well, because they couldn't figure out you need to actually call the method you are unit testing in your test.

That moment when unit tests twice bigger than code itself ...

God save me, I have to write UI unit testing tomorrow

Listened for about a half-hour yesterday to DevA ‘beat down’ DevB writing a console app for trying out a proof-of-concept idea he had.

DevB: “What’s the URL of the development server?”
DevA: “Why? What are you doing?”
DevB: “I’m needing to throw some messages to it so I can capture data for something I’m working on.”
DevA: “How are you calling the service?”
DevB: “I wrote a console app”
- you could almost hear the eye roll -
DevA: “A console app? Why in the world would you write a console app?”
DevB: “Oh..um..no reason. I just need log some test data for something I’m playing around with. How should I do it?”
DevA: “If it’s test data, you should have wrote a unit test. You see, unit tests …”
- yammer on and on for about 5 minutes about the virtues of unit tests…never really explaining anything -
DevB: “Yea, I’m not needing to test the result or anything. I just need to log some data.”
DevA: “Then you should use a unit test for that, not a console app. With a unit test, you’ll be able to validate the data. That’s what unit tests are for. Microsoft should have never put in console apps in Visual Studio. It just leads to bad coding practices.”
DevB: “Um…I don’t care. It’s a console app because I just need data…thanks anyway”

Today, DevC was talking to DevA

DevC: “Charlie is testing the order module, but there isn’t any test data. Do you still have the data generating script?”
DevA: “Oh yea, I’ll send him my console app that populates the database.”

It was all I could do from screaming “You stupid –bleep-er!! What the f–bleep-ck was all that yesterday?!”, but none of my business. Better to devrant about it than start a fight.

Me: Spend lots of free time (evenings, weekends, sometimes even mornings) learning new languages, new architectures, new libraries. A lot of effort so I'm at the top of the current tech. Swift, Kotlin, MVVM, MVP, C++, functional programming, reactive programming, continuous integration, unit testing...

Get a new job - once again I have to clean up some shitty code, written by someone who went from Java script to objective c, without reading a single book on iOS development. Unused code, commented out code, redundant code, dead code. Unused assets that no one could be bothered to remove for the past 2 years.

Sometimes I wonder why do I even bother if all I ever do is maintain mess done with outdated tech by someone who couldn't give a 🐙🐙🐙

There is how you think a system works, and there is how it actually works. Unit tests help keep those two ideas in sync with each other

I never write unit tests.

There, I said it.

When a bunch of unit tests start failing locally because the AWS secret key got rotated.
oh wait...
THOSE AREN’T UNIT TESTS!!!
Unit tests do not depend on any external system, that includes AWS...
AAARRGHHHHH

Spent fucking 11 hrs on fixing a stupid bug in Laravel that caused all my unit tests to fail. Just because that unit testing method has no unit test...

I need some opinions on Rx and MVVM. Its being done in iOS, but I think its fairly general programming question.

The small team I joined is using Rx (I've never used it before) and I'm trying to learn and catch up to them. Looking at the code, I think there are thousands of lines of over-engineered code that could be done so much simpler. From a non Rx point of view, I think we are following some bad practises, from an Rx point of view the guys are saying this is what Rx needs to be. I'm trying to discuss this with them, but they are shooting me down saying I just don't know enough about Rx. Maybe thats true, maybe I just don't get it, but they aren't exactly explaining it, just telling me i'm wrong and they are right. I need another set of eyes on this to see if it is just me.

One of the main points is that there are many places where network errors shouldn't complete the observable (i.e. can't call onError), I understand this concept. I read a response from the RxSwift maintainers that said the way to handle this was to wrap your response type in a class with a generic type (e.g. Result<T>) that contained a property to denote a success or error and maybe an error message. This way errors (such as incorrect password) won't cause it to complete, everything goes through onNext and users can retry / go again, makes sense.

The guys are saying that this breaks Rx principals and MVVM. Instead we need separate observables for every type of response. So we have viewModels that contain:

- isSuccessObservable
- isErrorObservable
- isLoadingObservable
- isRefreshingObservable
- etc. (some have close to 10 different observables)

To me this is overkill to have so many streams all frequently only ever delivering 1 or none messages. I would have aimed for 1 observable, that returns an object holding properties for each of these things, and sending several messages. Is that not what streams are suppose to do? Then the local code can use filters as part of the subscriptions. The major benefit of having 1 is that it becomes easier to make it generic and abstract away, which brings us to point 2.

Currently, due to each viewModel having different numbers of observables and methods of different names (but effectively doing the same thing) the guys create a new custom protocol (equivalent of a java interface) for each viewModel with its N observables. The viewModel creates local variables of PublishSubject, BehavorSubject, Driver etc. Then it implements the procotol / interface and casts all the local's back as observables. e.g.

protocol CarViewModelType {
isSuccessObservable: Observable<Car>
isErrorObservable: Observable<String>
isLoadingObservable: Observable<Void>
}

class CarViewModel {
isSuccessSubject: PublishSubject<Car>
isErrorSubject: PublishSubject<String>
isLoadingSubject: PublishSubject<Void>

// other stuff
}

extension CarViewModel: CarViewModelType {
isSuccessObservable {
return isSuccessSubject.asObservable()
}
isErrorObservable {
return isSuccessSubject.asObservable()
}
isLoadingObservable {
return isSuccessSubject.asObservable()
}
}

This has to be created by hand, for every viewModel, of which there is one for every screen and there is 40+ screens. This same structure is copy / pasted into every viewModel. As mentioned above I would like to make this all generic. Have a generic protocol for all viewModels to define 1 Observable, 1 local variable of generic type and handle the cast back automatically. The method to trigger all the business logic could also have its name standardised ("load", "fetch", "processData" etc.). Maybe we could also figure out a few other bits too. This would remove a lot of code, as well as making the code more readable (less messy), and make unit testing much easier. While it could never do everything automatically we could test the basic responses of each viewModel and have at least some testing done by default and not have everything be very boilerplate-y and copy / paste nature.

The guys think that subscribing to isSuccess and / or isError is perfect Rx + MVVM. But for some reason subscribing to status.filter(success) or status.filter(!success) is a sin of unimaginable proportions. Also the idea of multiple buttons and events all "reacting" to the same method named e.g. "load", is bad Rx (why if they all need to do the same thing?)

My thoughts on this are:

- To me its indentical in meaning and architecture, one way is just significantly less code.
- Lets say I agree its not textbook, is it not worth bending the rules to reduce code.
- We are already breaking the rules of MVVM to introduce coordinators (which I hate, as they are adding even more unnecessary code), so why is breaking it to reduce code such a no no.

Any thoughts on the above? Am I way off the mark or is this classic Rx?

¡rant|rant

Nice to do some refactoring of the whole data access layer of our core logistics software, let me tell an story.

The project is around 80k lines of code, with a lot of integrations with an ERP system and an sql database.

The ERP system is old, shitty api for it also, only static methods through an wrapper to an c++ library

imagine an order table.

To access an order, you would first need to open the database by calling Api.Open(...file paths) (yes, it's an fucking flat file type database)

Now the database is open, now you would open the orders table with method Api.Table(int tableId) and in return you would get an integer value, the pointer.

Now for the actual order. first you need to search for it by setting the search parameter to the column ID of the order number while checking all calls for some BS error code

Api.SetInt(int pointer, int column, int query Value)
Then call the find method.

Api.Find(int pointer)

Then to top this shitcake of an api of: if it doesn't find your shit it will use the "close enough" method of search.

And now to read a singe string 😑

First you will look in the outdated and incorrect documentation given to you from the devil himself and look for the column ID to find the length of the column.

Then you create a string variable with ALL FUCKING SPACES.

Now you call the Api.GetStr(int pointer, int column, ref string emptyString, int length)

Now you have passed your poor string to the api's demon orgy by reference.

Then some more BS error code checking.

Now you have read an string value 😀

Now keep in mind to repeat these steps for all 300+ columns in the order table.

News from the creators: SQL server? yes, sql is good so everything will be better?

Now imagine the poor developers that got tasked to convert this shitcake to use a MS SQL server, that they did.

Now I can honestly say that I found the best SQL server benchmark tool. This sucker creams out just above ~105K sql statements per second on peak and ~15K per second for 1.5 second to read an order. 1.5 second to read less than 4 fucking kilobytes!

Right at that moment I released that our software would grind to an fucking halt before even thinking about starting it. And that me & myself and I would be tasked to fix it.

4 months later and two weeks until functional beta, here I am. We created our own api with the SQL server 😀

And the outcome of all this...

Fixes bugs older than a year, Forces rewriting part of code base. Forces removal of dirty fixes. allows proper unit and integration testing and even database testing with snapshot feature.

The whole ERP system could be replaced with ~10 lines of code (provided same relational structure) on the application while adding it to our own API library.

Best part is probably the performance improvements 😀. Up to 4500 times faster and 60 times less memory usage also with only managed memory.

Making them unit tests pass

Tabs, or No Tabs? I did the same as this commentor 2 years ago. I can code so quick now because of this simple switch. Here's why:

(source, Laracasts.com)

Ben Smith
"I think the most beneficial tip was to do away with tabs. Although it took a while to get used to and on many occasions in the first few days I almost switched them back on, it has done wonders for my workflow.

I find it keeps my brain more engaged with the task at hand due to keeping the editor (and my mind) clutter free. Before when I had to refer to a class, I would have opened it in a new tab and then I might have left it open to make it easier to get to again. This would quickly result in a bar full of tabs and navigation around the editor would become slow and my brain would get bogged down keeping track of what was open and which tab it was in. With the removal of the tab bar I'm now able to keep only the key information in my mind and with the ability to quickly switch between recently opened files, I find I haven't lost any of the speed which I initially thought I might.

In fact this is something I have noticed in all areas of writing code, the more proficient I have become with an editor the better the code I have been writing. Any time spent actually writing your code is time in which your brain is disconnected from the problem you are trying to solve. The quicker you are able to implement your ideas in code, the smaller the disconnect becomes. For example, I have recently been learning how to do unit testing and to do so I have been rewriting an old project with tests included. The ability to so quickly refactor has meant that whereas before I might have taken 30 seconds shuffling code around, now I can spend maybe 5 seconds allowing my mind to focus much better on how best to refactor, not on the actual process of doing so."

jeff_way Mod
"Yeah - it takes a little while to get used to the idea of having no tabs. But, I wouldn't go back at this point. It's all about forcing yourself into a faster workflow. If you keep the tabs and the sidebar open, you won't use the keyboard."

You cant be a recognzied as a good developer, untill you are a good tester or say produce least bug free code. You should do thorough testing of your code before handing over to QA. I lacked the skill of good unit testing, so have suffered alot in past years.

TLDR: fuck this plugin.
Longer version: I recently had to implement an external Vue plugin to upload files. That gave me a good headache already, mostly due to the half Chinese, half Google Translate English documentation. I now found out that testing the implemented component may be impossible. Turns out it overwrites the $route and $router variables and makes them read-only. Which won't even let me create a shallow mount of my implementation. Fuck this shit, I'm getting a drink!

Tests are great. Used to work for {{probably shouldn't disclose company name}} and the only test was "Look, this one thing did what I thought it would!" when you finished coding a feature. Everything else was just a very shallow smoke test manually preformed by someone who hated their job. Now I work for Veterans United. Unit test all the things, all the time. First. Actual TDD here folks. Now, when you code a feature you can run all the unit tests, integration tests, and then smoke test it! We even have a bunch of UI tests if you feel like running them (mostly in Selenium, but some Protractor and now Nightmare). It's crazy. Having worked for the first company, I thought unit testing sounded horrible. Why would I want to do that? Now, working at VU, I'm like "Unit test all the things!" Things work, and I know it. More importantly, I can prove it. Great shit!

So after 7 months of soul crushing searching I was able to land an awesome job I never thought I'd get! I didn't really get hired for my projects, I think I was more of a culture fit that knew enough of what they were talking about. My colleagues are awesome, helpful people but they are also clearly way ahead of me as devs. I know that many new hires have similar feelings and it's more a matter of drive + time. I understand that and I'm ready for the marathon ahead of me but I have one HUGE concern... I don't understand unit testing. I've never written unit tests in JavaScript or Java (just on paper I wrote random assert statements for a college exam question that somehow turned out correct). More importantly, I don't understand when to write unit tests and what my main objectives should be when writing them. At work they talk about unit testing like it's just as basic as understanding version control or design patterns, both of which I have had no problems asking questions about because I at least understood them generally. I come here looking for resources, mainly things I can go through over the weekend. I understand that I'm going to have to ask my colleagues for help at some point but I DON'T want to ask for help without any solid base knowledge on unit testing. I would feel much more comfortable if I could understand the concepts of unit testing generally, and then ask my team members for help on how to best apply that knowledge. I'm sorry for begging, I'll definitely be looking for resources on my own too. But if anyone could point me to resources they found to be helpful & comprehensive, or resources that they'd want their co-workers to use if they were in my position I would be very grateful!!!!

"I don't think we should be playing with our privates {variables} like that" - framework designer

= context =
It was noticed that we have too many setter functions to change private variables just to do unit tests. So we had a small meeting to discuss what to do about this.
Options:
- don't do the test
- ignore till another time (ie: keep the functions till its a problem)
- put the variables into a provider
- use reflection (the above quote was a reaction to this option)

Employer made me delete a CI script that checked if our Gulp compiled because a colleague convinced him that “if you upload broken code to git you shouldn’t be uploading it” ..do you even know what CI is for? Don’t you know that people will inevitably fuck up eventually? I want to rip my fucking hair out right now.

rant?
When you want to write the unit test that demonstrates a subtle bug, but before recreating the same preconditions you end up writing 15 other tests, testing a lot of other stuff too, that in turn show other bugs, and skyrocketing the coverage (that was sitting at 0% actually).
Like I wanted to repair a hole in my umbrella to not get wet, and built a house instead.

Hmm. Seniors have the half working experience as I do and I am the only not senior one in Dev team.

I adapt code only to "taste" good for code reviewers, but they allow themselves to commit without caring and just saying :"oh unit testing is boring"

Enough with the kindergarten. Time to prepare myself for the next job.

Me: Wrote and unit testing code for a user story.

Day of a Merge
PO: We need to back out the code you wrote. We have not gotten approval from legal.

Me: Uhhh well it's not going live for 4 weeks still and not harming anything but if you insist, ok.....

2 Days Later
PO: Ok legal approved the changes can you put that back in?

Me: 😡🖕🏻

I've been working for two days (after work) on my blog idea...

Man I forgot how fun it is to work on your own projects, and the stuff I learn at the moment... It is insane!

I am currently a very happy developer, hopefully I can keep this up.

I still have to look into automated unit testing and code formatting checks with github though, cant wait!

Trying to unit test legacy code with lots of static methods suuccks!

Fix the Unit Tests to pass your Code!

Question time:

Has anyone used PHP unit with Selenium before?

I have a.. well words can’t explain it nice enough but, beyond a joke, not even funny, spaghetti code base I’ve come to inherit recently, which god help me, doesn’t follow any design patterns at all, it’s just a stamp this here, staple this down over here and throw paint at the wall and hope it sticks.

It’s a mixture of procedural and functional with the rare class kind of mess.

So attempting to refactor by any means is not a real possibility without some kind of behavioural testing in place first otherwise I know I’m going to end up breaking something somewhere and not even know it.

Also if anyone has had the privilege of such code bases, tips to dealing with the mess are appreciated.

Oh and no, I can’t rm -rf or start again.😭

*class ends, close laptop*

Ten hours later (right now)

Me: 😶 can't remember why these unit tests failed... Let's run again and see why.

*build success, runs more test cases and tests, all builds fine*

Best feel ever 😎

Ok.. So I applied for a web dev position at a small-to-medium sized company. They had a telephonic round which they were happy with. They then sent out an assignment for me (A simple webapp to complete in 1hr). I did it and sent them the code. Finally, the face to face interview also went well.

At the end of it all, the HR comes back and tells me - "You did not use a MVC framework for the assignment and your code was not optimized for unit testing."

Me - "Ugh. (1) You did not have to call me for the face to face interview if you did not like my code. (2) You specified NOT to use any 3rd party libraries when doing the assignment. (3) You can tell people directly that you cannot afford them."

So i'm working with people from another team to bring about a feature. I was wondering, "how come they're churning out so much shit in so little time!?"

Apparently, they make code, merge request to the release branch, and then do unit tests later.

How do people, in good conscience, think that they can skip unit testing for extremely vital components???

All the repos I have pulled for work have not had any unit tests. (well they have one test that does assert(True))

Until I found 1. One singular repo with unit tests. I get happy. I run said tests against the code in master. Tests fail

Jesus fucking christ! I've been hired by this bank to improve the quality of their online banking software. Zero unit tests and I'm tasked to make it testable as much as possible.

Guess what? Almost the whole fucking codebase uses static classes everywhere!!! Good luck unit testing that.... what a bummer. It is a challenge though.

When explaining unit testing:

"We tried but every time someone changes something in the database all the tests fail."

*facepalm*

Ah perfect... Now none of the unit tests pass...

*Executed maven build*

Me: What's this "no tests found?"
Senior: Nevermind it's not important. Just check if your code works.

Last year for company I work I made OAuth server + SSO discriminated by business unit in php. Well it was quite complex project and security sensitive, so I wrote tests for every piece of code. Then I made client for it with abstractions to be easily extendable, but was too lazy write tests for it.

Anyway, today needed to add new grant auth strategy. Thought, I could also write tests for the client this time. That was the mistake...

I installed codeception (testing framework), tested every class, and then left the main client class for the end where all http communication and other magic happens.

So turns out, I can’t capture function parameters with codeception (at least its not documented), so I can’t assert if data in the end is correct. I mean it’s fucking abstraction on top of phpunit, which can do that, so what the fuck? But ok I probably could just use phpunit, but anyway why the fuck you would create mock abstraction with only 20% of functionality from original implementation? It doesn’t make fucking sense...

In addition, I was testing code written with guzzle http (http client), and that is some pile of shit. Just why the fuck I need to write 20 lines of code just to get a fucking json response...

Fuck this shit, I am not going to test it anymore, it just makes me hate php, I barely can deal with all that angryness inside me.

How many people do unit testing?. Am always caught my deadline. I just fix errors in production. The client timeline are not feasible

After writing ~200 lines of code and then unit testing it

THE TESTS ALL PASS!!!

then I run them again just to be sure and they all pass but mocha is saying I am getting 40ms lag on some of my tests...

Noooo!!!

This is meant to be an async message passing system; I cannot have an input lag of 40ms :(

Developer just emailed our team a complaint that our logging assembly was resulting in their poor test coverage and they sent a change request to give them the ability to mock the underlying log provider (ex. from the event log to ‘something else’).

Looked at their tests, and they are testing whether or not the .Log was executed (on an exception, if the .Log method was not executed, the test failed), which seemed a bit worthless because we’ve already got coverage in our unit tests.
We had a meeting to discuss the issue.
Me: “I’m OK with changing the logging code if it’s necessary, but I want to understand why.”
DevA: “Logging errors is crucial to the database transaction. If someone removes the logging, the tests should fail.”
Me: “If someone removes the error logging on purpose, then they likely have an agenda and will remove the test validation too. It wouldn’t be an accident.”
DevA: “That’s not my problem. They will have to deal with HR.”
Me: “We purposely prevented someone from intercepting the logging just for that purpose. Your test code already covers the business rule, testing the logging seems out of place. That would like writing a test to make sure the System.IO.File.ReadAllText actually reads all the text from a file. You kinda assume a few smart Microsoft engineers already wrote tests for that.”
DevA: “Yea, I guess that would be silly.”

Got cc’ed an email a little bit ago from DevA to his boss..
“We’re not going to be able to change logging assembly. This may have some impact on our overall test coverage as those lines of code will not get testing coverage. You will have to let the DevMgr know we will not meet our test coverage goals.”

WTF!

I suck at unit testing. I really fucking suck at it.
Every time I try to write a unit test, I think to myself, what the fuck am I doing? How does this even work? What am I testing? Why do I need to new up 100 dependencies? how do I test this private behaviour from the boundaries of my object? Can I even substitute a Factory delegate? Does that even work? What if my object needs a dependency to have certain state? How do I mock that?

Does anyone have any good reading material to make me not shit at writting automated tests?

Writing unit tests on a weekend and catching up on work that needs to be done because I m too busy on weekdays to have time to think about this...

The sad thing is test coverage is shit in the entire code base as boss just decided to start enforcing requirements now... And I have this huge migrating from legacy system project that needs to be merged. And we'll the legacy system is even shittier

So I have to write unit tests for shit code that was never written with testing in mind...

On the other hand I reworked some testing utilities to make it easier... For everyone... I want a huge bonus.... That I probably won't get...

FUCK YOU GOOGLE

I feel I have zero control as a developer.. You made the shittiest choice by bringing in intellij , you made an even worse choice by adding gradle.. You add thousands of configuration options to manifests, layouts but provide no common place to find documentation for them.. This is just nonsense.. I've wasted endless hours figuring out your dex limits, proguard rules.. It's just frustrating.. Could you be anymore counterintuitive with your unit testing framework! Honestly it's a steaming pile of shit..

Wrote some unit tests to check for 404 errors that called a fake endpoint key...

Months later create that same endpoint key for unrelated reasons and spend a half hour trying to figure out WHY ON EARTH the 404 tests are all failing...

🤦‍♂️

Finally back at the HQ and away from Offsite Hell after 18 months!!!!!!!!!!!! Real internet! Coffee on tap! Community of practice meetings! COOODDDEEEE!!!! Also back to devrant. Goodbye Indian devs from hell, j/k they still suck life out of my day with their deprecated ways.

Side note:
Switched to Unreal Engine from Unity recently and my god it is amazing! I definitely prefer being able to use C# with unity vs c++ with unreal but the blueprint system is a great visual programming system.

Unit testing is my new side chick. She wants me to leave my wife; I'm considering it.

Unrelated: Read Dead Redemption 2 is amazing.

I only expect two (2) things guaranteed in year 2019: test and compilation errors

"You'll be doing X, and be sure to test everything you do. But we don't do unit testing. They aren't paying us for that."
- PM to intern coming via college (it's like a forced internship that counts as another subject for the degree).

JS/NODE/MOCHA I HATE U....

SPENT ALL MORNING REVERTING AND DEBUGGING A BRANCH BC SOME UNIT TESTS FAILED.

THE CAUSE WAS NOT IN THE FAILED CASE THO.... IT WAS BECAUSE SOME OTHER JS FILE WAS NAMED *Test.js

ITS NOT A PROBLEM IN A LIVE SERVER BUT IT SCREWS UP THE SERVER WHEN ITS RUN IN MOCHA FOR ITS UNIT TESTING...

unit testing is THE SHIT!

Been wanting to get into OOP and unit testing, haven't found a single semi big project that I can use to study these techniques...

Wrote myself a class when asked to do an API call last week, and I think it looks pretty decent...

Does anyone have a ressource to just see how to do it "properly" on medium sized projects? (100k loc)

I promised to blow off unit tests, so here we go. Let’s talk about unit tests.

Why use them? So, unit testing connoisseurs outline two big purposes:
1. To keep application integrity,
2. To catch bugs.

Keeping app integrity is when your freshly hired developer implement something that potentially leads to the whole app failure, but unit test fails and tell you that newly added code is breaking the app.

Catching bugs is pretty much self explanatory. Just think about it – you have to actually write code that describes how to check up another code to catch bugs in it.

I personally hate unit tests. I can’t explain, but every time I forced myself to write them, I got vertigo and terrible headache to the end of the day. Trying to write some tests? Here you go, wooosh and you can’t work anymore. Go get some sleep if you can.

But I still needed my job to be done and it should have been done really well. So I started my research.

Recalling Steve McConnell’s and many other classy developers’ experience, there is only one decent solution that prevents bugs and inconsistencies at large scale – the specs. Developing the specs should be considered the task number one. With decent, robust specs, app is almost guaranteed to contain no bugs.

Let’s take a look at the piece of great spec. For example, imagine you have to implement validation logic. So you state that validation should be implemented with special validation functions and then you define what validation function is: a pure function that accepts a value and returns boolean: true if value is good, false otherwise.

With that in mind, it’s obvious that potentially present bugs can only be inside that pure functions. Our spec made implementing validation very easy and idiomatic, isolating potential bugs. As soon as validators are pure and simple, unit tests aren’t needed at all.

You know what? As your app scales, you’ll definitely need a spec, sooner or later. Growing up without spec leads to irreversible failure, your app will grow like cancerous cell does and it’ll be easier to just put it into trash and start up from scratch.

But specs have one major downside – it requires at least one enlightened developer with really great experience to create it. It can’t be done quickly, it’s a very costly and difficult process. That’s why making great software costs that much.

But what if you need an MVP right now?

Speaking of MVPs, you’ll have to go with simplest instruments possible. Throw away Jenkins, use your Plesk autodeploy from Git repo. Throw away complex frontend setups, go with $30-$40 glittery ui kit or even an open source thing right from CDN, without less, sass, gulp and all that jazz. Make use of create-react-app if you can’t avoid using React because you’re making a web application.

Throw away AWS, Azure, Docker, Kubernetes and everything like that. Buy a cheap PHP7 hosting with pre-installed MySQL and do everything as simple as possible. If you have to use NoSQL, go with free Heroku with git autodeploy, NodeJS Express and free Mongo addon.

MVP should be ready in two weeks. As soon as your infrastructure is that simple, you don’t need unit tests. They’ll slow you down. Once you MVP is ready, go get funding, throw away first MVP, hire a decent CTO and let him create the spec.

Right there, it may be noticeable that unit tests are probably the biggest and baddest workaround imaginable. It gives you false sense of controlling your bugs, while you don’t have any control at all. Obvious bugs that unit tests can catch are easily noticeable at concise system, while quirky bugs couldn’t be caught by them because you can’t even imagine them while writing your unit tests. At this point, unit tests are just waste of time.

So, the whole picture is clear: at a small scale, you don’t have time to write unit tests and don’t have many bugs because of simple tools and standard patterns. At large scale, you need a spec to prevent bugs, unit tests become redundant as long as your spec is good.

In conclusion, I can tell that I’ve been developing a Clojurescript + CouchDB app for some startup, and in 8 month coding by spec I made myself I encountered only two or three bugs, all related to external JS tools and its quirks.

Have a good time!

Counted it out... 100k LoC frontend & backend... Not a single automated test. No unit testing, no integration testing, nothing. I've been asked to implement a CI server.

Halp

Started working as a "working student" in an it company to write unit tests. (which then will be executed automatically - so automated unit tests)

Realised that I write more or less the same code just changing the names and some parameters (sometimes more if it's not an number but a bool for example but it's pretty much the same scheme)

So I bought a tool for 1$ to use "auto complete" on custom templates.(I type testgetbool and the tool replaces this to the test case only asking for the variable name.)

So now I'm writing automated automated tests 😁😅

(which is btw pretty boring but cost & time effective)

What unit testing tools/frameworks do you use?

Ahh, this particularly memorable occasion, it’s not much of a “fight” per se, but remembering the events I really want to beat the shit out of those asshats,

Backstory, I was working in a project, big one, my previous one, we had all this “squads” to say, agile teams consisted of several devs, I was happily working in my squad namely squad “A”, until one day by the end of a sprint my PO asked me to help another squad, call it squad “B”,

Curious for the reason as I may be, I ignored it at first, after all having the higher up owing me one is always welcome, A and B are having similar amount of dev team, with A having 1 more Front End developer,

Skipping the boring detail, continue on to my first sprint, I saw problems within the team, the other 4 FE consisted of 2 foreigners (call them “the good guys”) and 2 of our own (same vendor as me, let’s call them “the pricks”),

The ones leading discussions most of the time are the pricks, the good guys usually keep their mouth shut, calm and composed, and when shit happens, the good guys usually fix the problem without any fuss, on the contrary, the pricks threw fit all over the place trying to find somone to blame first,

Skip all the excruciating 2 weeks of trying to guide them in the right way, and talking with their PO, my PO, tech leads, etc, I came across a development of a certain feature, PR already made and waiting for review from a TL, then being the impatient ass B’s PO is, he pushed me to ask for a review from another TL, and the only one available is “the meticulous and perfectionist” TL, which is definitely not my choice in any given order,

Simple math, I assigned my review to TL X, wait a day, it’ll definitely be merged within a day, give it to TL Y, he reviews it immediately, and he’ll find all these shit squad B’s been writing, and then I’ll be spending 3 days trying to clean it up, but no matter, the PO insist on having it reviewed first,

Lo and behold, it happened, I had to refactor all the shit the pricks have been writing, again, I took the high road, until I stumbled upon a piece of code that just doesn’t makes any sense, no matter how exhaustively I put the effort to trace it out, an hour passed by and I decided to ask the pricks, let’s call them #1 and #2, #1 being the senior prick, and #2 being the regular prick but bigger pain in the ass, it went on something like this,

Me: uhh, sorry to bother you guys, but what’s this piece is used for?

#2: huh? Dunno, last guy to touch it was #1

Me: eeh, but the line history says it’s you,

#2: strange, I don’t remember, for testing probably

Me: well TL said to remove this one if it’s unused, I want to know if it’ll affect any functionality

#2: well, go figure

Me: yep that’s why I’m asking

#2: well, if you don’t need it just remove it

Me: again that’s what I’m trying to figure out, will it affect any functionality, since time is pressing I don’t have room for experimenting so I’m trying to find some solution by asking the creator if he might have any insight on this matter

#2: well don’t ask me, try asking #1

Me: dear sir #1 have you the faintest idea of what this piece of scripture might mean?

#1: huh? No idea, #2 wrote it

#2:... I don’t remember, I thought it was you,

#1: see the git blame, it’s #2

Me: guys, since we’re not getting anywhere, I’ll just go against my guts and remove it, so that everyone can live happily ever after,

#2: wait, who’s asking?

Me: the reviewing TL,

#2: yes, who?

Me: mr Y

#2: let’s meet with him

Me: what for?

#2: you said he wants to delete the code, let’s have a chat with him

Me: *not this shit again

#2: what are we waiting for, let’s go,

Me: naah, no need I’ll just delete it as you said it first, sorry, my bad

#2: what’d you say?

Me: I already deleted it, nevermind

#2: why did you do that? If the TL doesn’t like it let’s have a chat

Me: and what would be the point of that? I deleted it already, case closed, I’ll take the responsibility for fixing anything that may come up later, I don’t have time for your childish shit,

#2: *glares at me

Me: *glares back

#1: now, now, let’s all take a step back here, blah blah blah

#2: blah blah blah

And they both starts arguing with each other after #1 tries to act all diplomatic, I left them to their own discussion, and proceed with the PR,

Thankfully removing the piece of code doesn’t affect anything, it seems like #1 or #2 forgot to delete it when fixing the unit test some commits ago

You know you're a glass is half empty person when you test the negative case first.

Every. Single. Time. I've tried to learn and implement proper Unit/Instrumentation testing, the main Android devs decide to go for something else or introduce some feature or Gradle plugin that breaks every tutorial out there. I find it way easier to just test everything manually than learning the new yearly trend. Am I the only one?

when i look at the code structure of the project i work on with my friends, i always think about how to implement the SOLID principles of bob martin for clean code
... and then i think about the clusterfuck of almost unmaintainable code that has been created over time and all the unit testing that doesn't exist at all and how much time and effort it would need to correct that code and how i realize that i don't even understand the principles and how to implement them
... and then i give up and go on coding even more mess
... and then i repeat😅😖😩

One responsibility of our team is general code QA for the entire dev department, DevMgr walks in our area yesterday…
DevMgr: “Has anyone reviewed the new WPF threaded model execution code?”
- everyone on the team responds “no”
DevMgr: “Can we get a review on that code ASAP? If it works as well as the developer said, it’s going to solve the lock up problems users are experiencing and automatic logging of errors.”
DevA: “Well, no amount of code is going to stop users from performing bad searches locking up the user-interface. That code is just a band-aid around the real problem. If the developers would write unit tests first …”
- rant about 5 minutes on unit testing that had nothing to do with why the DevMgr was here
DevB: “Yea, the code probably isn’t written to handle threads correctly. All the threading they’ve done so far is –bleep-”
DevMgr: “Oh, I wasn’t aware of that. Get me the results of the code review and if they don’t have unit tests, delete it from source control and let the developer know it’s not up to our standards.”
OMFG!! You have not even seen the code!
OK, DevA ..what the –bleep- does unit testing have anything to do with the user interface! You know the DevMgr is too dim to understand the separation of concerns. Shut your pompous ‘know-it-all’ mouth.
DevB…what the –bleep- have ever done in WPF? You manage the source control and haven’t written any C# in two years and never, ever written code for any significant project. Take that “handle threads correctly” and shove it up your –bleep-. Pompous –bleep-hole. Go back and watch youtube and read your twitter while the grown-ups get the work done.

Start with the simple things first then progress gradually.
Though I highly suggest learning unit testing as soon as possible.

Client and ex-Dev/manager wanted automated testing.... manager doesn't see a reason for interfaces... Still wants unit tests, and a SOLID design. Doesn't want to pay for the extra time needed. Good times

How do you switch from testing while debugging (functional) to TDD unit tests?

Usually I test while coding by just running the use case and making sure while coding, bad inputs are caught/handled.

But most times I start with a general idea of the structure and what the about should be (which essentially would be the functional test case?)

I don't think about how you can break each part or the functions I need until I need them. Then usually start simple and then refactor. And until I'm sure each time I refactor would require changing the tests?

My company never used unit tests. And i would love to educate but i do not know how to unit test properly. I always en up with: if i want to properly test all ins and outs of this class's + operator. I need to add checks for positive number, negative numbers, nan, infinites, nulls etc. Etc. It needs so many tests for something so stupidly simple, that i don't see a way to motivate people to use it.

Am i missing something? Is there a guideline for "ok coverage"? Is testing just that much work and is that why nobody cares until it is too late?

I have been reading a book about working with legacy code. But still i got no answers. Halp!

I've never written any unit tests for any apps/programs I've developed.

I would tell myself, this time you're going to create some and be a better developer by doing so. I end up just creating the file and that's it.

Most of the bugs are discovered during the user testing phase so I always end up being lazy writing unit tests.

I write very defensive code though so that helps a little but all in all, it's a very bad habit that I need to snap out of

So I'm working on some communications app which bridges the main server/database with some equipment on the field. Now this equipment works in a redundancy pair: two cpus, A and B, both connected via ethernet, one active, the other standby/replicating and no comms on it. One obvious requirement is that when this equipment swaps the active cpus the comms app should switch as well. Fair enough, going with this into testing phase.

This guy, from qa, got some instructions from someone else:
1. Trigger the soft switch from equipment so that cpus got swapped.
2. Remove the ethernet cable from the standby unit.
3. Observe the communications.

And the test goes like: cpu A is active, B is standby. Switch is triggered, B becomes active, A goes into standby. The cable is pulled out from cpu B.

Test result: failed, no comms ever

How do you think about unit testing/TDD when writing apps? (I'm working this at 3am so might be a bit messy... Just a thought I woke up to).

Whenever I write an app, I don't write unit tests but as I'm developing I may create test functions for specific parts that I run to validate a specific component is working before moving onto the next.

So first, when I get a problem, break it up into components based on the requirements. It's usually sort of input, processor, output sequence.

Where the processor is essentially the core app. And so I start coding it, referring to the input thru an interface, model objects, adding fields as I go along (assume no matter what the input, I will get these before the logic is called). I may add some more interfaces as well for other data I may need but I know won't be going in the first input.

So I write all the logic, functions needed to get a basic app to run that does what I am writing the app for.

Only then do I write a test functions passing in different parameters to make sure the logic and response is what I want and making fixes as necessary. At that point I basically have the simplest version of the app.
(I guess this is sort of like mocking?)

Then build outwards implementing and testing components as I go along and may do some simple refactoring/redesign. (I guess all these tests are functional then, have to start the whole app).

And finally when I have the basic requirements fully complete I will add the "nice to haves" on top via refactoring of specific logic in specific components. Again testing by running the app maybe with simple inputs.

I guess now I'm thinking how do you write unit tests/TDD if the app keeps changing (via adhoc refactorings) as you are creating it?

Before I started working, I used to feel like I depended on documentation and the internet a little too much owing to ultra crappy long term memory. After spending some time at my internship going through code written by "professional developers" several years senior to me and trying to write unit tests for it (surprise: the code was in production without having underwent any sort of testing), I feel like the amount of time I spend online reading usage recommendations, alternates for optimisation, best practices for writing clean and descriptive code and all that is a lot more rewarding. Some bad things help you feel good about yourself.

Don't start the first semester teaching racket, especially when you're teaching documentation and unit-testing at the same time.
A few months later it was java's turn (same course), why dont teach that first?

Unit testing Entity Framework.

Balls.

I just want to use Jest to unit test my Typescript classes, but that appears to be impossible!
Testing the compiled Javascript instead doesn't seem to recognize any classname at all :(

100% test coverage on a new feature? fuck yea!

What a mess ^^

From one moment to another unit-tests on my local machine stopped working.

There was a PHP fatal error, because of insufficient memory.

Actually, there was a ducking "unit"-test of a controller action "log".

This action returns the content of the projects log file...

Since this log file grew over the time, PHP tried to assert the response of the controller action which was sized about 400MB.

C'moooooon guys!
What were your thoughts behind this bullshit? ^^

I frigging hate unit testing an AngularJS application. The amount of mocks you need to create just to test a a piece of code is unbelievable

# ./symfony test:unit

Propel-Exception: Unable to execute DELTE ALL statement [...] Integrity constraint violation: 1451 Cannot delete or update a parent row: a foreign key constraint fails.

WHY ist a UNIT TEST reaching out to a REAL data base?
And who in their right mind would create a different data base schema for the tests?
This was with a clone of the real thing. Removing the FK results in double PK-errors...

Coding the new functionality, 2 hours.
Writing and testing the unit test and e2e test, 2 weeks.

I'm using pascal lazarus. Any zuggestions on a GOOD unit-testing framework?!

In my first few months of my first dev job, I written this fragile piece of code in, trigger warning, PHP that sent out email reports to my clients. It was a two men team, and we have no clue about TDD or how to do unit testing for such code. We would just run that piece of code manually do send out dummy emails to ensure things were working.

One day the code broke. I was told by my boss to fix it. Spent the entire day trying to fix but couldn't get anything done. Finally at around 7pm my boss came by and asked why is it I couldn't get it fixed. He helped me troubleshoot and fixed it. And subsequently told me "c'mon man you're better than this."

It turns out that he changed a part of a code that was supposed return an array of strings to an array of objects, adding a second attribute that wasn't even in use.

So what that meant is that he changed a piece of working code, to include a property he didn't need, committed and push to production without even manually testing it. AND TALKED SHIT TO ME.

That was the day I learned git blame and began my journey on TDD.

Trying to learn JavaScript unit testing with Vue.js and it's not going well. Took long enough just to get everything installed and now it errors as it doesn't understand <template> tags. Why is it so difficult?