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Search - "functional test"
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At one of my former jobs, I had a four-day-week. I remember once being called on my free Friday by an agitated colleague of mine arguing that I crashed the entire application on the staging environment and I shall fix it that very day.
I refused. It was my free day after all and I had made plans. Yet I told him: OK, I take a look at it in Sunday and see what all the fuzz is all about. Because I honestly could fathom what big issue I could have caused.
On that Sunday, I realized that the feature I implemented worked as expected. And it took me two minutes to realize the problem: It was a minor thing, as it so often is: If the user was not logged in, instead of a user object, null got passed somewhere and boom -- 500 error screen. Some older feature broke due to some of my changes and I never noticed it as while I was developing I was always in a logged in state and I never bothered to test that feature as I assumed it working. Only my boss was not logged in when testing on the stage environment, and so he ran into it.
So what really pushed my buttons was:
It was not a bug. It was a regression.
Why is that distinction important?
My boss tried to guilt me into admitting that I did not deliver quality software. Yet he was the one explicitly forbidding me to write tests for that software. Well, this is what you get then! You pay in the long run by strange bugs, hotfixes, and annoyed developers. I salute you! :/
Yet I did not fix the bug right away. I could have. It would have just taken me just another two minutes again. Yet for once, instead of doing it quickly, I did it right: I, albeit unfamiliar with writing tests, searched for a way to write a test for that case. It came not easy for me as I was not accustomed to writing tests, and the solution I came up with a functional test not that ideal, as it required certain content to be in the database. But in the end, it worked good enough: I had a failing test. And then I made it pass again. That made the whole ordeal worthwhile to me. (Also the realization that that very Sunday, alone in that office, was one of the most productive since a long while really made me reflect my job choice.)
At the following Monday I just entered the office for the stand-up to declare that I fixed the regression and that I won't take responsibility for that crash on the staging environment. If you don't let me write test, don't expect me to test the entire application again and again. I don't want to ensure that the existing software doesn't break. That's what tests are for. Don't try to blame me for not having tests on critical infrastructure. And that's all I did on Monday. I have a policy to not do long hours, and when I do due to an "emergency", I will get my free time back another day. And so I went home that Monday right after the stand-up.
Do I even need to spell it out that I made a requirement for my next job to have a culture that requires testing? I did, and never looked back and I grew a lot as a developer.
I have familiarized myself with both the wonderful world of unit and acceptance testing. And deploying suddenly becomes cheap and easy. Sure, there sometimes are problems. But almost always they are related to infrastructure and not the underlying code base. (And yeah, sometimes you have randomly failing tests, but that's for another rant.)9 -
I've had my share of incompetent coworkers. In order of appearance:
1. A full stack dev. This one guy never, and I mean NEVER uses relationships in their tables. No indexing, no keys, nada. Couple of months later he was baffled why his page took ten seconds to load.
2. The same dev as (1). Requirement was to create some sort of "theme" feature for a web app. Hacked it by putting !important all over the place.
3. The same dev again. He creates several functions that if the data exists returns a view, and if it doesn't, "echo '0'". No, not return 0 or return false or anything, but fucking echo. This was PHP. If posted a rant about this a few months ago.
4. Same dev, has no idea what clean code is. No, not just reusable functions, he doesn't even get indenting right. Some functions have 4 spaces, some 2 tabs, some 6 tabs! And this is inside the same function. God wait until he tries Python...
5. Same dev now suggests that he become the PM. GM approves (very small company). Assigns me to travel to a client since they needed "technical assistance about the API". Was actually there to lead a UAT session.
Intermezzo, that guy went from fullstack dev to PM to sales (yes, one who calls clients to offer products) to business development, to product analyst in the span of two years.
After a year and a half there, I quit.
6. New company, a "QA engineer" who also assumes the role as the product owner. Does absolutely no tests other than "functional tests" in which he NEVER produces any form of documentation. Not even a set of test cases. He goes by "intuition".
7. Same guy as (6), hands me requirements for a feature. By "hands me" I mean he did that verbally. No spec documents, no slack chat, no Trello card. I ended up writing it as a card in Trello. Fast forward to the due date, he flips out because that wasn't what he wanted. Showed him the card. He walked away, without thinking of a solution how this mess should be handled.
Despite all this, I really don't want him (6&7) to leave the company. The devs get really stressed out at this job and he does make a really good person to laugh with/at. -
A is for Assembly, a wizard's spell
B is for Bootstrap, so bland and the same. And also for Brainf*ck, will blow you away
C is for COBOL, your grandad knows that
D is for daemon, your server knows what
E is for Express.js, you node what is coming
F is for FORTRAN, which is perferct for sciencing
G is for GNU which is GNU not UNIX
H is for Haskell using functional units
I is for Intance, An action of Object
J is for Java plays with them Always
K is for Kotlin, Android's new toy
L is for Lisp, scheming a ploy
M is for Matlab, who knows how it works
N is for Node a bloatware of code
O is for Objective Pascal, you did not expect that
P is for programming, we all love to do that
Q is for Queries, A database is made
R is for R, statistics are great
S is for Selenium, you have to test that
S is for Smalltalk, let's make it all brief
T is for Turing Test, how human is this?
U is for Unix, build with all talents
V is for Visual Studio, built with all laments
W is for Web, lets build something cool
X is for XHTML, remember all that?
Y is for Y2K, I'm tired as f*ck
Z is for Zip, let's zip is all now.
Get yourself coffee and back to the grind.8 -
I'm convinced code addiction is a real problem and can lead to mental illness.
Dev: "Thanks for helping me with the splunk API. Already spent two weeks and was spinning my wheels."
Me: "I sent you the example over a month ago, I guess you could have used it to save time."
Dev: "I didn't understand it. I tried getting help from NetworkAdmin-Dan, SystemAdmin-Jake, they didn't understand what you sent me either."
Me: "I thought it was pretty simple. Pass it a query, get results back. That's it"
Dev: "The results were not in a standard JSON format. I was so confused."
Me: "Yea, it's sort-of JSON. Splunk streams the result as individual JSON records. You only have to deserialize each record into your object. I sent you the code sample."
Dev: "Your code didn't work. Dan and Jake were confused too. The data I have to process uses a very different result set. I guess I could have used it if you wrote the class more generically and had unit tests."
<oh frack...he's been going behind my back and telling people smack about my code again>
Me: "My code wouldn't have worked for you, because I'm serializing the objects I need and I do have unit tests, but they are only for the internal logic."
Dev:"I don't know, it confused me. Once I figured out the JSON problem and wrote unit tests, I really started to make progress. I used a tuple for this ... functional parameters for that...added a custom event for ... Took me a few weeks, but it's all covered by unit tests."
Me: "Wow. The way you explained the project was; get data from splunk and populate data in SQLServer. With the code I sent you, sounded like a 15 minute project."
Dev: "Oooh nooo...its waaay more complicated than that. I have this very complex splunk query, which I don't understand, and then I have to perform all this parsing, update a database...which I have no idea how it works. Its really...really complicated."
Me: "The splunk query returns what..4 fields...and DBA-Joe provided the upsert stored procedure..sounds like a 15 minute project."
Dev: "Maybe for you...we're all not super geniuses that crank out code. I hope to be at your level some day."
<frack you ... condescending a-hole ...you've got the same seniority here as I do>
Me: "No seriously, the code I sent would have got you 90% done. Write your deserializer for those 4 fields, execute the stored procedure, and call it a day. I don't think the effort justifies the outcome. Isn't the data for a report they'll only run every few months?"
Dev: "Yea, but Mgr-Nick wanted unit tests and I have to follow orders. I tried to explain the situation, but you know how he is."
<fracking liar..Nick doesn't know the difference between a unit test and breathalyzer test. I know exactly what you told Nick>
Dev: "Thanks again for your help. Gotta get back to it. I put a due date of April for this project and time's running out."
APRIL?!! Good Lord he's going to drag this intern-level project for another month!
After he left, I dug around and found the splunk query, the upsert stored proc, and yep, in about 15 minutes I was done.1 -
I was assigned a girl that's new to the industry (but with a master's degree).
I had high hopes, as people told me she is quite a curious fellow. As I am just a junior Dev with 2 yrs of experience Ididn't know if I could handle her.
We started working on a project. Which was a change request for a previous project I had developed. I gave her 2 days to read and understand the functional requirements of previous project and this CR. Then explained everything too.
Then I gave here another 3 days to read the previous design document to learn how this code worked.
I asked her multiple times if she has any questions. She said she got everything. Cool.
One week goes by. We start to code the CR while she is shadowing me. I explained why we chose one of the two approaches. And why we are making any of the changes. She as usual nodded in agreement.
I asked her to create Unit test cases.
She couldn't write even one. So, I quizzed her, she knew nothing about the project! Nothing at all!
FUCK!
I wrote down the test cases in short hand and told her to document it (by reffering previous UTC). She wrote the test cases in short hand in the document. And she reused the previous document and did not even clean it out.
After fixing the document I asked her to execute them. But nope, she doesn't even know how the application flows for this project. FML.
It took her 3 days to write and test 8 test cases.
Now she is assigned to me in another project. This one is more complicated. And I gave her a function skeleton to complete. I figured that it will take me 15 minutes so let's give her a day. But nope. 3 days no progress.
I get it someone might not be quick to grasp something. But you know what grinds my gears? That even after this you act like a know it all! Fuck! For someone who hasn't worked with her she is the most dilligent developer.
How the fuck does someone survive masters and suck so bad!22 -
it's funny, how doing something for ages but technically kinda the wrong way, makes you hate that thing with a fucking passion.
In my case I am talking about documentation.
At my study, it was required to write documentation for every project, which is actually quite logical. But, although I am find with some documentation/project and architecture design, they went to the fucking limit with this shit.
Just an example of what we had to write every time again (YES FOR EVERY MOTHERFUCKING PROJECT) and how many pages it would approximately cost (of custom content, yes we all had templates):
Phase 1 - Application design (before doing any programming at all):
- PvA (general plan for how to do the project, from who was participating to the way of reporting to your clients and so on - pages: 7-10.
- Functional design, well, the application design in an understandeable way. We were also required to design interfaces. (Yes, I am a backender, can only grasp the basics of GIMP and don't care about doing frontend) - pages: 20-30.
- Technical design (including DB scheme, class diagrams and so fucking on), it explains it mostly I think so - pages: 20-40.
Phase 2 - 'Writing' the application
- Well, writing the application of course.
- Test Plan (so yeah no actual fucking cases yet, just how you fucking plan to test it, what tools you need and so on. Needed? Yes. but not as redicilous as this) - pages: 7-10.
- Test cases: as many functions (read, every button click etc is a 'function') as you have - pages: one excel sheet, usually at least about 20 test cases.
Phase 3 - Application Implementation
- Implementation plan, describes what resources will be needed and so on (yes, I actually had to write down 'keyboard' a few times, like what the actual motherfucking fuck) - pages: 7-10.
- Acceptation test plan, (the plan and the actual tests so two files of which one is an excel/libreoffice calc file) - pages: 7-10.
- Implementation evalutation, well, an evaluation. Usually about 7-10 FUCKING pages long as well (!?!?!?!)
Phase 4 - Maintaining/managing of the application
- Management/maintainence document - well, every FUCKING rule. Usually 10-20 pages.
- SLA (Service Level Agreement) - 20-30 pages.
- Content Management Plan - explains itself, same as above so 20-30 pages (yes, what the fuck).
- Archiving Document, aka, how are you going to archive shit. - pages: 10-15.
I am still can't grasp why they were surprised that students lost all motivation after realizing they'd have to spend about 1-2 weeks BEFORE being allowed to write a single line of code!
Calculation (which takes the worst case scenario aka the most pages possible mostly) comes to about 230 pages. Keep in mind that some pages will be screenshots etc as well but a lot are full-text.
Yes, I understand that documentation is needed but in the way we had to do it, sorry but that's just not how you motivate students to work for their study!
Hell, students who wrote the entire project in one night which worked perfectly with even easter eggs and so on sometimes even got bad grades BECAUSE THEIR DOCUMENTATION WASN'T GOOD ENOUGH.
For comparison, at my last internship I had to write documentation for the REST API I was writing. Three pages, providing enough for the person who had to, to work with it! YES THREE PAGES FOR THE WHOLE MOTHERFUCKING PROJECT.
This is why I FUCKING HATE the word 'documentation'.36 -
I'M SO PROUD, I WROTE A FULLY-FUNCTIONAL JSON PARSER!
I used some data from the devRant API to test it :D
(There's a lot of useful tests in the devRant API like empty arrays, mixed arrays and objects, and nested objects)
Here's the devRant feed with one rant, parsed by Lua!
You can see the type of data (automatically parsed) before the name of the data, and you can see nested data represented by indentation.
The whole thing is about 200 lines of code, and as far as I can tell, is fully-featured.24 -
PM: Guys, we have to upgrade Java 8
Me: hey check out all these cool functional programming stuff (lambdas)in Java 8.
PM: Sorry you can't do that. Our automated testing software isn't up to date to test Java 8. So you have to code it "vanilla"
Me: Erm, upgrade it?
PM: we didn't budget it for that.
Me: *thinks to me miself* brilliant8 -
Let the student use their own laptops. Even buy them one instead of having computers on site that no one uses for coding but only for some multiple choice tests and to browse Facebook.
Teach them 10 finger typing. (Don't be too strict and allow for personal preferences.)
Teach them text navigation and editing shortcuts. They should be able to scroll per page, jump to the beginning or end of the line or jump word by word. (I am not talking vi bindings or emacs magic.) And no, key repeat is an antifeature.
Teach them VCS before their first group assignment. Let's be honest, VCS means git nowadays. Yet teach them git != GitHub.
Teach git through the command line. They are allowed to use a gui once they aren't afraid to resolve a merge conflict or to rebase their feature branch against master. Just committing and pushing is not enough.
Teach them test-driven development ASAP. You can even give them assignments with a codebase of failing tests and their job is to make them pass in the beginning. Later require them to write tests themselves.
Don't teach the language, teach concepts. (No, if else and for loops aren't concepts you god-damn amateur! That's just syntax!)
When teaching object oriented programming, I'd smack you if do inane examples with vehicles, cars, bikes and a Mercedes Benz. Or animal, cat and dog for that matter. (I came from a self-taught imperative background. Those examples obfuscate more than they help.) Also, inheritance is overrated in oop teachings.
Functional programming concepts should be taught earlier as its concepts of avoiding side effects and pure functions can benefit even oop code bases. (Also great way to introduce testing, as pure functions take certain inputs and produce one output.)
Focus on one language in the beginning, it need not be Java, but don't confuse students with Java, Python and Ruby in their first year. (Bonus point if the language supports both oop and functional programming.)
And for the love of gawd: let them have a strictly typed language. Why would you teach with JavaScript!?
Use industry standards. Notepad, atom and eclipse might be open source and free; yet JetBrains community editions still best them.
For grades, don't your dare demand for them to write code on paper. (Pseudocode is fine.)
Don't let your students play compiler in their heads. It's not their job to know exactly what exception will be thrown by your contrived example. That's the compilers job to complain about. Rather teach them how to find solutions to these errors.
Teach them advanced google searches.
Teach them how to write a issue for a library on GitHub and similar sites.
Teach them how to ask a good stackoverflow question :>6 -
From my work -as an IT consultant in one of the big 4- I can now show you my masterpiece
INSIGHTS FROM THE DAILY LIFE OF A FUNCTIONAL ANALIST IN A BIG 4 -I'M NOT A FUNCTIONAL ANALYST BUT THAT'S WHAT THEY DO-
- 10:30, enter the office. By contract you should be there at 9:00 but nobody gives a shit
- First task of the day: prepare the power point for the client. DURATION: 15 minutes to actually make the powerpoint, 45 minutes to search all the possible synonyms of RESILIENCE BIG DATA AGILE INTELLIGENT AUTOMATION MACHINE LEARNING SHIT PISS CUM, 1 hour to actually present the document.
- 12:30: Sniff the powder left by the chalks on the blackboards. Duration: 30 minutes, that's a lot of chalk you need to snort.
13:00, LUNCH TIME. You get back to work not one minute sooner than 15.00
- 15:00, conference with the HR. You need to carefully analyze the quantity and quality of the farts emitted in the office for 2 hours at least
- 17:00 conference call, a project you were assigned to half a day ago has a server down.
The client sent two managers, three senior Java developers, the CEO, 5 employees -they know logs and mails from the last 5 months line by line-, 4 lawyers and a beheading teacher from ISIS.
On your side there are 3 external ucraininans for the maintenance, successors of the 3 (already dead) developers who put the process in place 4 years ago according to God knows which specifications. They don't understand a word of what is being said.
Then there's the assistant of the assistant of a manager from another project that has nothing to do with this one, a feces officer, a sys admin who is going to watch porn for the whole conference call and won't listen a word, two interns to make up a number and look like you're prepared. Current objective: survive. Duration: 2 hours and a half.
- 19:30, snort some more chalk for half an hour, preparing for the mail in which you explain the associate partner how because of the aforementioned conference call we're going to lose a maintenance contract worth 20 grands per month (and a law proceeding worth a number of dollars you can't even read) and you have no idea how could this happen
- 20:00, timesheet! Compile the weekly report, write what you did and how long did it take for each task. You are allowed to compile 8 hours per day, you worked at least 11 but nobody gives a shit. Duration: 30 minutes
- 20:30, update your consultant! Training course, "tasting cum and presenting its organoleptic properties to a client". Bearing with your job: none at all. Duration: 90 minutes, then there's half an hour of evaluating test where you'll copy the answers from a sheet given to you by a colleague who left 6 months ago.
- 22:30, CHANCE CARD! You have a new mail from the HR: you asked for a refund for a 3$ sandwich, but the receipt isn't there and they realized it with a 9 months delay. You need to find that wicked piece of paper. DURATION: 30 minutes. The receipt most likely doesn't even exist anymore and will be taken directly from your next salary.
- 23:00 you receive a message on Teams. It's the intern. It's very late but you're online and have to answer. There's an exception on a process which have been running for 6 years with no problems and nobody ever touches. The intern doesn't know what to do, but you wrote the specifications for the thing, 6 years ago, and everything MUST run tonight. You are not a technician and have no fucking clue about anyhing at all. 30 minutes to make sure it's something on our side and not on the client side, and in all that the intern is as useful as a confetto to wipe your ass. Once you're sure it's something on our side you need to search for the senior dev who received the maintenance of the project, call him and solve the problem.
It turns out a file in a shared folder nobody ever touches was unreachable 'cause one of your libraries left it open during the last run and Excel shown a warning modal while opening it; your project didn't like this last thing one bit. It takes 90 minutes to find the root of the problem, you solve it by rebooting one of your machines. It's 01:00.
You shower, watch yourself on the mirror and search for the line where your forehead ends and your hair starts. It got a little bit back from yesterday; the change can't be seen with the naked eye but you know it's there.
You cry yourself to sleep. Tomorrow is another day, but it's going to be exactly like today.8 -
Soooo, i'm assigned to finish a half made prototype of a production line functional test platform.
1 - Some wires were faulty so someone decided to change them.
2 - wild shortcut appears *music fades, screen goes black*
3 - now i have to fix the prototype
4 - Devil's voice whispers on my ear *welcome to heeeeellllllll*22 -
Preface: i'm pretty... definitely wasted. rum is amazing.
anyway, I spent today fighting with ActionCable. but as per usu, here's the rant's backstory:
I spent two or three days fighting with ActionCable a few weeks ago. idr how long because I had a 102*f fever at the time, but I managed to write a chat client frontend in React that hooked up to API Guy's copypasta backend. (He literally just copy/pasted it from a chat app tutorial. gg). My code wasn't great, but it did most of what it needed to do. It set up a websocket, had listeners for the various events, connected to the ActionCable server and channel, and wrote out updates to the DOM as they came in. It worked pretty well.
Back to the present!
I spent today trying to get the rest to work, which basically amounted to just fetching historical messages from the server. Turns out that's actually really hard to do, especially when THE FKING OFFICIAL DOCUMENTATION'S EXAMPLES ARE WRONG! Seriously, that crap has scoping and (coffeescript) syntax errors; it doesn't even run. but I didn't know that until the end, because seriously, who posts broken code on official docs? ugh! I spent five hours torturing my code in an effort to get it to work (plus however many more back when I had a fever), only to discover that the examples themselves are broken. No wonder I never got it working!
So, I rooted around for more tutorials or blogs or anything else with functional sample code. Basically every example out there is the same goddamn chat app tutorial with their own commentary. Remember that copy/paste? yeah, that's the one. Still pissed off about that. Also: that tutorial doesn't fetch history, or do anything other than the most basic functionality that I had already written. Totally useless to me.
After quite a bit of searching, the only semi-decent resource I was able to find was a blog from 2015 that's entirely written in Japanese. No, I can't read more than a handful of words, but I've been using it as a reference because its code is seriously more helpful than what's on official Rails docs. -_-
Still never got it to work, though. but after those five futile hours of fighting with the same crap, I sort of gave up and did something else.
zzz.
Anyway.
The moral of the story is that if you publish broken code examples beacuse you didn't even fking bother to test them first, some extremely pissed off and vindictive and fashionable developer will totally waterboard the hell out of you for the cumulative total of her wasted development time because screw you and your goddamn laziness.8 -
Fuck software assurance.
Fuck functional specifications, fuck software requirements, fuck V-model bullshit documentation, fuck integration test plans.
Fuck trying to shoehorn waterfall requirements into what clearly was an interative development.
Fuck me for being a single dev handling all this bullshit by myself.3 -
Fuck Apple and its review system
So, this started in december. We wanted to publsih an app, after years of development.
Submit to review, and passes on the first try. Well, what do you know. We are on manual release option, so we can release together with the android counterpart. Well yes, but someone notices that the app name is not what was aggreed (App Name instead of AppName). Okay, should be easy, submit the same app, just the name changed. If it passed once, it will pass again, right? HAH
Rejected, because the description, why we use the device’s camera is too general. Well... its the purpose of the app... but whatever, i read the guidelines, okay, its actually documented with exapmles. BUT THEN WHY THE FUCK COULDNT YOU SAY THAT ON THE FIRST UPLOAD?
Whatever, fix it, new version, accepted, ready to release just in time.
It doesindeed roll out,but of course, we notice that the app has a giant issue, but only on specific phones. None of our test phones had this problem, but those who have, essentially cannot use our program. Nasty as it is, the fix is really easy, done in 5 minutes. Upload it asap, literally nothing changed from user point of view, except now it doesnt crash on said devices. Meanwhile 1 star reviews are arriving from these users - of course with all the right. Apple should allow this patch quickly, right? HAH
THE REAL BULLSHIT COMES NOW
With only config files changed, the same binary uploaded we get rejected? What now? Lets read it. “Metadata rejected, no need to upload new binary”.... oh fine only the store page is wrong? Easy. Read the message, what went wrong. “Referencing third party content is nit permitted on the app store” meaning that no android test device should be shown. Fine, your rules. They even send a picutre of the offending element. BUT ITS NOT EVEN ON THE STORE. THATS A SCREENSHOT OF THE APP. HOW IS THAT METADATA? I ask about this, and i get a reply, from either a bot, or a person who cant speak or read english, and only pasted a sample answer, repeating the previous message. WTF. Fine, i guess you are dumb, but since they stop replying to our queries, do the only sensible thing, re-record the offending tutorial video that actually contained an android device. This is about 2 weeks, after the first try to apply a simple patch to a broken app. And still, how did it pass the review 2 times?
Whatever, reupload again, play the waiting game for a week, when the promised average wait time is 2 days, they hit us with a message, that they want to know what patent we use in our apps core functionality. WTF WHY NOW? It didnt bother you for a month, let it release ti production and now you delay a simple patch for this? We send them what they know. Aaaaand they reply: sorry we need more time to review your app. FUUUUUUCKKK YOUUU. You are reviewing a PATCH with close to zero functional change!!! Then, this shit goes on, every week we ask about an ETA, always asking for patience... at the end it took another 3 weeks... so december 15 to jan 21 in total...
FOR. A. SINGLE. FUCKING. PATCH
Bottom line is what is infurating, apple cares that there is an android device in the tutorial video, but they dont care that a significant percentage of our users simply cannot use the app.
Im done7 -
"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.)rant developer unit test test testing fp oop writing tests get your shit together unit testing unit tests8 -
I’m back for a fucking rant.
My previous post I was happy, I’ve had an interview today and I felt the interviewer acted with integrity and made the role seem worthwhile. Fuck it, here’s the link:
https://www.devrant.io/rants/889363
So, since then; the recruiter got in touch: “smashed it son, sending the tech demo your way, if you can get it done this evening that would be amazing”
Obviously I said based on the exact brief I think that’s possible, I’ll take a look and let them know if it isn’t.
Having done loads of these, I know I can usually knock them out and impress in an evening with no trouble.
Here’s where shit gets fucked up; i opened the brief.
I was met with a brief for an MVP using best practice patterns and flexing every muscle with the tech available...
Then I see the requirements, these fucking dicks are after 10 functional requirements averaging an hour a piece.
+TDD so * 1.25,
+DI and dependency inversion principle * 1.1
+CI setup (1h on this platform)
+One ill requirement to use a stored proc in SQL server to return a view (1h)
+UX/UI design consideration using an old tech (1-2h)
+unobtrusive jquery form post validation (2h)
+AES-256 encryption in the db... add 2h for proper testing.
These cunts want me to knock 15-20h of Work into their interview tech demo.
I’ve done a lot of these recently, all of them topped out at 3h max.
The job is middling: average package, old tech, not the most exciting or decent work.
The interviewer alluded to his lead being a bit of a dick; one of those “the code comes first” devs.
Here’s where shit gets realer:
They’ve included mock ups in the tech demo brief’s zip... I looked at them to confirm I wasn’t over estimating the job... I wasn’t.
Then I looked at the other files in the fucking zip.
I found 3 of the images they wanted to use were copyright withheld... there’s no way these guys have the right to distribute these.
Then I look in the font folder, it’s a single ttf, downloaded from fucking DA Font... it was published less than 2mo ago, the license file had been removed: free for Personal, anything else; contact me.
There’s no way these guys have any rights to this font, and I’ve never seen a font redistributed legally without it’s accompanying licence files.
This fucking company is constantly talking about its ethical behaviours.
Given that I know what I’m doing; I know it would have taken less time to find free-for-commercial images and use a google font... this sloppy bullshit is beyond me.
Anyway, I said I’d get back to the recruiter, he wasn’t to know and he’s a good guy. I let him know I’d complete the tech demo over the weekend, he’s looked after me and I don’t want him having trouble with his client...
I’ll substitute the copyright fuckery with images I have a license for because there’s no way I’m pushing copyright stolen material to a public github repo.
I’ll also be substituting the topic and leaving a few js bombs in there to ensure they don’t just steal my shit.
Here’s my hypotheses, anyone with any more would be greatly welcomed...
1: the lead dev is just a stuck up arsehole, with no real care for his work and a relaxed view on stealing other people’s.
2: they are looking for 15-20h free work on an MVP they can modify and take to market
3: they are looking for people to turn down this job so they can support someone’s fucking visa.
In any case, it’s a shit show and I’ll just be seeing this as box checking and interview practice...
Arguments for 1: the head told me about his lead’s problems within 20mn of the interview.
2: he said his biggest problem was getting products out quickly enough.
3: the recruiter told me they’d been “picky”, and they’re making themselves people who can’t be worked for.
I’m going to knock out the demo, keep it private and protect my work well. It’s going to smash their tits off because I’m a fucking great developer... I’ll make sure I get the offer to keep the recruiter looked after.
Then fuck those guys, I’m fucking livid.
After a wonderful interview experience and a nice introduction to the company I’ve been completely put off...
So here’s the update: if you’re interviewing for a shitty middle level dev position, amongst difficult people, on an out of date stack... you need people to want you, don’t fuck them off.
If they want my time to rush out MVPs, they can pay my day rate.
Fuuuuuuuuck... I typed this out whilst listening to the podcast, I’m glad I’m not the only one dealing with shit.
Oh also; I had a lovely discriminatory as fuck application, personality test and disability request email sent to me from a company that seems like it’s still in the 90s. Fuck those guys too, I reported them to the relevant authorities and hope they’re made to look at how morally reprehensible their recruitment process is. The law is you don’t ask if the job can be done by anyone.6 -
I wrote a prototype for a program to do some basic data cleaning tasks in Go. The idea is to just distribute the files with the executable on our shared network to our team (since it is small enough, no github bullshit needed for this) and they can go from there.
Felt experimental, so I decided to try out F# since I have always been interested with it and for some reason Microsoft adopted it into their core net framework.
I shit you not, from 185 lines of Go code, separated into proper modules etc not to mention the additional packages I downloaded (simple things for CSV reading bla bla)
To fucking 30 lines of F# that could probably be condensed more if I knew how to do PROPER functional programming. The actual code is very much procedural with very basic functional composition, so it could probably be even less, just more "dense"
I am amazed really. I do not like that namespace pollution happens all over F# since importing System.IO gives you a bunch of shit that you wouldn't know where it is coming from unless you fuck enough with Ionide and the docs. But man.....
No need for dotnet run to test this bitch, just highlight it on the IDE, alt enter and WHAM you have the repl in front of you, incremental quasi like Lisp changes on the code can be REPL changed this way, plethora of .NET BCL wonders in it, and a single point of documentation as long as you stay in standard .net
I am amazed and in love, plus finding what I wanted to do was a fucking cakewalk.
Downside: I work in a place in which Python is seen as magic and PHP, VB.NEt and C# is the end all be all of languages. If me goes away or dies there will be no one else in this side of the state to fuck with F#
This language needs to be studied more. Shit can be so compact, but I do feel that one needs to really know enough of functional programming to be good at it. It is really not a pure language like Haskell (then again, haskell is the only "mainstream" pure functional language ain't it not?) but still, shit is really nice and I really dig what Microhard is doing in terms of the .net framework.
Will provide later findings. My entire team is on the Microsoft space, we do have Linux servers, but porting the code to generate the necessary executables for those servers if needed should be a walk in the park. I am just really intrigued by how many lines of code I was able to cut down from the Go application.
Please note that this could also mean that I am a shit Golang dev, but the cut down of nil err checkings do come somewhere.9 -
I really want to test out a fully functional Ubuntu Touch phone but I don't have access to one.... Really wish my Android could dual boot it so I could try it out.4
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Regression testing is a type of software testing that is performed to ensure that changes or modifications made to an existing software application do not have any adverse effects on the functionality of the system. It is typically performed after bug fixes, enhancements, or other changes are made to the software, to ensure that previously working functionality has not been impacted by the changes.
The main objective of regression testing is to ensure that previously working functionality continues to work correctly after any modifications to the software. This involves re-executing test cases that were previously executed to ensure that they still pass, and also adding new test cases to cover any new functionality or changes that have been made.
Regression testing can be performed manually or using automated testing tools. Automated regression testing tools can significantly reduce the time and effort required to execute and maintain regression test suites. Automated tools can also help to identify defects and issues in the software more quickly, allowing for faster feedback and resolution.
Regression testing https://u-tor.com/services/... is a critical component of software development and is essential for ensuring that software applications remain functional and error-free, even after changes have been made to the system.9 -
Was writing a functional test in AdonisJS that queries an API endpoint with data and my test stays red with a dainty `expected 500 to equal 200` assertion failure.
In frustration, I yelled "What must I fuchen do to get my 500 to become a 200". Then my dev friend, an absolute fuchen genius tells me, "Subtract 300." I hope the prat stays debugging his code for a week!!8 -
The "unit" in unit test does not mean your ENTIRE APPLICATION. Ever heard of scope!?
I am amazed how often people write overblown test setups, mock hundreds of unrelated services, just to test one tiny bit of logic.
That bit of logic could have been a pure function.
For that pure function you could write a dead simple unit test. Given that input, I expect that output. Nothing more, nothing less. (It helps even more if the pure functions only accepts primitives, like string and numbers, or very simple immutable value objects).
No I don't care that the service is used by another service, as your mocked interaction also doesn't test the service as a whole but you just assume the happy case most of the time anyway. You want to test the entire application? Let's not use unit tests for that but let's use a different kind of test for that (integration test, functional tests, e2e-tests).
If you write code in a way that easily allows for unit testing, your need to mock goes away.rant unit tests test all the things tests you are doing it wrong tdd testing don't mock me unit test1 -
Unit testing is cool and all, but FFS...
If you want unit test - cool. But its not drop-in replacement for functional testing!
I believe each release should be manually tested.9 -
!rant
if you're someone who grades code, fuck you, you probably suck. Turned in a final project for this gis software construction class as a part of my master's degree (this class was fuck all easy, I had two weeks for each project, each of them took me two days). We had to pick the last project, so I submitted final project proposal that performs a two-sample KS test on some point data. Not complex, but it sounds fancy, project accepted. Easy money.
I write the thing and finish it, it works, but it doesn't have a visualization and that makes the results seem pretty lame, even though its fully functional. SO I GO OUT OF MY FUCKING WAY to add a matplotlib chart of the distribution. To do that, at the very bottom of the workflow, I define a function to chart it out because it made the code way more readable. Reminder, I didn't have to do this, it was extra work to make my code more functional.
Then, this motherfucker takes points off because I didn't define the function at the very beginning of the code... THE FUCK, DUDE? But, noobrants, it's "considered best prac--" nope, fuck you, okay? This class was so shit, not once was code style addressed in a lesson or put on any rubric - they didn't give a shit what it looked like - in fact, the whole class only used arcpy (and the csv mod once), they didn't teach us shit about anything except how to write geoprocessing scripts (in other words, how to read arcGIS docs about arcpy) and encouraged us to write in fucking pythonwin. And now, when the class is fucking over, you decide to just randomly toss this shit in, like it was a specific expectation this whole time? AND you do this when someone has gone out of their way to add functionality? Why punish someone who does extra work because that extra work isn't perfect? Literally, my grade would have been better without the visualization.
I'm not even mad at my grade - it was fine - I just hate inconsistency in grading practices and the random raising and lowering of expectations depending on how some grader's coffee tasted that morning. I also hate punishing people for doing more - it's this kind of shit that makes people A) wanna rip their eyeballs out, and B) never do anything more than the basic minimum expectation to avoid extra unwanted attention. If you want your coders to step up and actually put work in to make things the best they can be, yell at a grader to reward extra work and not punish it.4 -
Don't reuse your fixtures!
Each test case should be isolated. Don't ever think just because some function requires a similar input, it's safe to reuse it ALL OVER THE PLACE.
Why? Because someday, you want to change one functionality of one unit.
And you adapt your tests, fix your code, and suddenly, by changing one fixture, you break dozens if not hundreds of unrelated tests and now you have to clean up that mess.
It's even worse for functional tests with all those interwoven parts so that it becomes hard to reason about the scope of your tests when lacking proper documentation.
How I know? BECAUSE I AM CLEANING UP YOUR MESS RIGHT NOW!3 -
A while back we had some time sensitive work I was doing in overtime, the work was purely functional and the front end had not yet been done. It went to QA to test the functionality and the only feedback I got was UX oriented.
I tried to explain on 3 occasions that the looks was not important in the slightest at this stage, and just try to break it. I then got a lecture that it wasn't an optimised layout and was shown the AA route finder as an example of how the tester thought it should look.1 -
Product Management thought of automating an entire legacy product so they funded undisclosed amount to program management who in turn hired >20 contract devs managed by architects and dev managers with zero functional or technical knowledge of product and who in turn went ahead automating the product in selenium, end result of which was an useless automation framework with lot of browser specific dependencies and whuch could run only on one setup environment and migrating test cases to another environment and running is almost impossible and tyrannical to configure. The automation test cases are highly disorganized with all generic setup, DB configurations and business case test data mixed up in same config files and which need to be rewriten every time ported from one environment to other.To add misery to my woes as a dev working in that product I was told to utilize that framework and enhance the quality of my code by writing inline automation Cases for the same. I am left speechless thoughtless and emotionless after that decision.2
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Rolled out a new application I built almost entirely by myself 2 days ago... But my dev group is understaffed and has a project manager who is literally the most clueless person I have ever met, so as a result, we don't have a functional/useful dev/test/prod framework and no standards for how to deploy apps. So my past 2 days were comprised of fixing bugs in the live system that could probably have been caught if I had the time and resources to get everything thoroughly tested. It's stable now, but damn our management for being generally idiots. Our motto appears to be "Fuck it, we'll do it live"1
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I continue to internally read and study about Smalltalk in an effort to see where we might have FUCKED UP and went backwards in terms of software engineering since I do not believe that complex source code based languages are the solution.
So I have Pharo. Nothin to complex really, everything is an object, yet, you do have room for building DSL's inside of it over a simple object model with no issue, the system browser can be opened across multiple screens (morph windows inside of a smalltalk system) for which you can edit you code in composable blocks with no issues. Blocks being a particular part of the language (think Ruby in more modern features) give ample room for functional programming. Thus far we have FP and OO (the original mind you) styles out in the open for development.
Your main code can be executed and instantly ALTER the live environment of a program as it is running, if what you are trying to do is stupid it won't affect the live instance, live programming is ahead of its time, and impressive, considering how old Smalltalk is. GUI applications can be given headless (this is also old in terms of how this shit was first distributed) So I can go ahead and package the virtual machine with the entire application into a folder, and distribute it agains't an organization "but why!!!! that package is 80+ mbs!") yeah cuz it carries the entire virtual machine, but go ahead and give it to the Mac user, or the Linux user, it will run, natively once it is clicked.
Server side applications run in similar fashion to php, in terms of lifecycles of request and how session storage is handled, this to me is interesting, no additional runtimes, drop it on a server, configure it properly and off you go, but this is common on other languages so really not that much of a point.
BUT if over a network a user is using your application and you change it and send that change over the network then the the change is damn near instant and fault tolerant due to the nature of the language.
Honestly, I don't know what went wrong or why we are not bringing this shit to the masses, the language was built for fucking kids, it was the first "y'all too stupid to get it, so here is simple" engine and we still said "nah fuck it, unlimited file system based programs, horrible build engines and {}; all over the place"
I am now writing a large budget managing application in Pharo Smalltalk which I want to go ahead and put to test soon at my institution. I do not have any issues thus far, other than my documentation help is literally "read the source code of the package system" which is easy as shit since it is already included inside. My scripts are small, my class hierarchies cover on themselves AND testing is part of the system. I honestly see no faults other than "well....fuck you I like opening vim and editing 300000000 files"
And honestly that is fine, my questions are: why is a paradigm that fits procedural, functional and OBVIOUSLY OO while including an all encompassing IDE NOT more famous, SELECTION is fine and other languages are a better fit, but why is such environment not more famous?9 -
What I'm doing now, writing a JS library for a simple kitchen timer (like, something that can be wound up, is ticking, can be paused, etc). Here's a list of neat stuff I've learned:
Polyfilling as a lib author (I decided against it).
Packaging the lib (using Rollup, ES6 modules are totes cool).
Using flow to add static typing in strategic places (started appreciating types in JS since reading up on functional programming).
Modelling state and transitions using an explicit state machine. (Fucking finally. There's usually an implicit state machine somewhere, only spread out all over the app...)
Using mostly side-effect free methods, being very explicit about when and why things are mutated).
Test-first/TDD (ish) using Jest and the awesome Wallabyjs.
Freeing up mental capacity by letting Prettier format my code for me (it was hard to let go but totally worth it).
Started using git.
Did all work on Ubuntu after pretty much a lifetime of Windows (initially to separate work from gaming) and finally swapped MS Visual Studio for Atom.
When it's finished I'm going to publish it on GitHub, which will also be a first for me. Might try out some CI platform while I'm at it.
tl;dr: wrote some js, felt good2 -
Functional test are failing.
Expected: 7109
Got: 9000
Grep code-base for 7109. No findings. 0_o
Dig through test setup written by a drunk.
Find:
assert(actualPrice === 1800 * conversionRate)
Goddamnit. You shall not calculate your expected values in a test setup.1 -
A tale of silos, pivots, and mismanagement.
Background: Our consultancy has been working with this client for over a year now. It started with some of our back-end devs working on the API.
We are in Canada. The client is located in the US. There are two other teams in Canada. The client has an overseas company contracted to do the front-end of the app. And at the time we started, there was a 'UX consultancy' also in the US.
I joined the project several months in to replace the then-defunct UX company. I was the only UX consultant on the project at that time. I was also to build out a functional front-end 'prototype' (Vue/Scss) ahead of the other teams so that we could begin tying the fractured arms of the product together.
At this point there was a partial spec for the back-end, a somewhat architected API, a loose idea of a basic front-end, and a smattering of ideas, concepts, sketches, and horrific wireframes scattered about various places online.
At this point we had:
One back-end
One front-end
One functional prototype
One back-end Jira board
One front-end Jira board
No task-management for UX
You might get where this is going...
None of the teams had shared meetings. None of the team leads spoke to each other. Each team had their own terms, their own trajectory, and their own goals.
Just as our team started pushing for more alignment, and we began having shared meetings, the client decided to pivot the product in another direction.
Now we had:
One back-end
One original front-end
One first-pivot front-end
Two functional prototypes
One front-end Jira board
One back-end Jira board
No worries. We're professionals. We do this all the time. We rolled with it and we shifted focus to a new direction, with the same goals in mind internally to keep things aligned and moving along.
Slowly, the client hired managers to start leading everything in the same direction. Things started to look up. The back-end team and the product and UX teams started aligning goals and working toward the same objectives.
Then the client shifted directions again. This time bigger. More 'verticals'. I was to leave the previous 'prototypes' behind, and feature-freeze them to work on the new direction.
One back-end
One conceptual 'new' back-end
One original front-end
One first-pivot front-end
One 'all verticals' front-end
One functional prototype
One back-end Jira board
One front-end Jira board
One product Jira board
One UX Jira board
Meanwhile, the back-end team, the front-end team overseas, all kept moving in the previously agreed-upon direction.
At this stage, probably 6 months in, the 'prototypes' were much less proper 'prototypes' but actually just full apps (with a stubbed back-end since I was never given permission or support to access the actual back-end).
The state of things today:
Back to one back-end
One original front-end
One first-pivot front-end
One 'all verticals' front-end
One 'working' front-end
One 'QA' front-end
One 'demo' front-end
One functional prototype
One back-end Jira board
Two front-end Jira boards
One current product Jira board
One future product Jira board
One current UX Jira board
One future UX Jira board
One QA Jira board
I report to approximately 4 people remotely (depending on the task or the week).
There are three representatives from 'product' who dictate features and priorities (they often do not align).
I still maintain the 'prototype' to this day. The front-end team does not have access to the code of this 'prototype' (the clients' request). The client's QA team does not test against the 'prototype'.
The demos of the front-end version of the product include peanut-gallery design-by-committee 'bug call-outs', feature requests, and scope creep by attendees in the dozens from all manner of teams and directors.4 -
I *hate* it when a senior asks me to write a functional test report. Like I thought we hired functional testers to do that sort of stuff? I'm a programmer, I only write 3 things: code, documentation, and more code. Not freaking reports about how something did not work before, and after this 1-line fix does work. Oh and don't forget to include screenshots and a description of the issue. Arghhh4
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So this week I have been fired from developer job, because my project should be done a month ago. But the environment weren't ready so I was preparing itand even something wasn't implemented.
Now everything should be functional, just didn't had time to test it.4 -
I feel like writing or telling people about the time I jumped from Windows 7 Ultimate and jumping to Windows 10. (I'm not against 10, but I'm never updating after what had happened to me)
It all starts when none of my games will play due to a possible issue with my graphics card. I look up "3D source game bug" and not many results pop up. I go on Microsoft's Qna areas and ask this question but to my surprise nothing they say would make sense. "Clean the pins of your graphics card, make sure you verify the games on Steam". I verified the games and they checked out as perfectly fine. I don't have access to my graphics card because this is a laptop, sadly not a tower.
Two months pass and my computer is already showing signs of stress, like it didn't want to live in a sense. It was three times slower than when I was on Windows 7 and it was unallocating areas of my main hard drive where I could make virtual hard drives.
Instantly I start looking up Linux distros and find Linux Mint. 17.3 was the current version at the time. I downloaded it and burned it onto a DVD-rom and rebooted my computer. I loaded into the disc and to my surprise it seemed almost like Windows 7 apart from the Linux part. I grab my external hard drive and partition it to hold the Linux distro and leave it plugged in incase Windows 10 does actually fail.
On December 19, a few months after Windows 10 had released. I start my laptop to try and continue my studies in video game development. But to my surprise, Windows 10 had finally crashed permanently. The screen flickered blue and black, and an error box saying Loginui.exe failed to start. I look at it for a solid minute as my computer had just committed suicide in a sense.
I reboot thinking it would fix the error but it didn't. I couldn't log in anymore.
I force shutdown the laptop and turn it back on putting it into safe mode.
To my surprise loginui.exe works and I sign in. I look at my desktop, the space wallpaper I always admired, the sound files, screen shots I had saved.
I go into file explorer and grab everything out of my default hard drive Windows was installed on. Nothing but 400gb got left behind and that was mainly garbage prototypes I had made and Windows itself. I formatted my external hard drive and placed everything on it. Escaping Windows 10 with around 100GB of useful data I looked at the final shutdown button I would look at.
I click it and try to boot into normal Windows 10. But it doesn't work. It flickers and the error pops up once more.
I force it to shutdown and insert the previous Linux Mint disc I made and format the default hard drive through Linux. I was done. 10 gave me a lot of shit. Java wouldn't work, my games has a functional UI but no screen popped up except a black abyss and it wouldn't even let me try to update my graphics card, apparently my AMD Radeon 5450 was up to date at the AMD Radeon 5000's.
I installed Linux Mint and thinking the games would actually play I open steam and Launch Half-Life 2 to check if Linux would be nicer to me than Windows 10 had been.
To my surprise the game ran. The scene from Highway 17 popped on screen and the UI was fully functional. But it was playing at 10-15fps rather than the usual 60-70fps. Keep look at my drivers and see my graphics card isn't in use. I do some research and it turns out I have a Hybrid Laptop.
Intel HD Graphics and an AMD Radeon 5450 and it was using the Intel and not the AMD. Months of testing and attempts of getting the games to work at high frame rates pass and the Damn thing still functions at a low terrible fps. Finally I give up. I ask my mom for a Windows 7 disc and she says we can't afford it. A few months pass and I finally get a Windows 7 installation disc through money I've saved up. Proudly I put it into my optical disc drive and install it to my main hard drive deleting Linux completely. I announced to all my friends my computer was back in working order and I install everything I needed, Steam, Skype, Blender, and Unity as well as all my games. I test Half-Life 2 and it's running exceptionally smoothly, I test Minecraft at max settings and it's working beautifully. The computer was functioning properly once again and my life as a developer started as I modeled things and blender, learned beginners C# and learned a lot of Batch. Today the computer still runs at a great speed and I warn others of what happened to me after I installed Windows 10 to my machine if they are thinking of switching from 7 or 8 on an older machine.
Truly the damage to my data cannot be undone. But the memory of the maintenance, work, tests, all are a memory of how Windows 10 ruined me and every night before the one year anniversary of Windows 10's release, I took out the battery of my laptop and unplugged it from the a.c. power, just so Windows 10 doesn't show it's DLLs, batch scripts, vbs scripts, anything on my computer. But now, after this has happened and I have recovered, I now only have a story to tell5 -
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?4 -
I am just student looking for job, and got this pre interview test:
Develop an Android or iOS app with login and password input field, download button, place for image we prvided.
... reading further:
What we are looking for in the code ?
internal quality:
-consistent formatting of the source code
-clean, robust code without smells
-consistent abstractions and logical overall structure
-no cyclic dependencies
-code organized in meaningful layers
-low coupling and high cohesion
-descriptive and intention-revealing names of packages, classes, methods etc.
-single small functions that do one thing
-truly object-oriented design with proper encapsulation, sticking to DRY and SOLID principles, without procedural anti-patterns
-lots of bonus points for advanced techniques like design patterns, dependency injection, design by contract and especially unit (or even functional or integration) tests
external quality:
-the app should be fully functional, with every state, user input, boundary condition etc. taken care of (although this app is indeed very small, treat it as a part of big production-ready project)
-the app should correctly handle screen orientation changes, device resources and permissions, incoming calls, network connection issues, being pushed to the background, signing deal with the devil :D and other platform intricacies and should recover from these events gracefully
-lowest API level is not defined - use what you think is reasonable in these days
-bonus points if the app interacts with the user in an informative and helpful way
-bonus points for nice looks - use a clean, simple yet effective layout and design
... I mean really ? and they give me like 2 days ?4 -
Collect project specifications & details.
- order by relevance.
List & install dependencies (possibly spin up a vm).
mkdir ~/Code/{lang}/{framework?}/{project}
Bootstrap skeleton & scaffold.
- ensure functional base.
Iterate specs list & create test case(s) one at a time, going: test => minimal to pass => refactor => next(repeat_cycle)1 -
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? -
1) receive functional requirements
2) create functional specification, post it on forum (no jira)
3) create memo document, post it on forum (no jira)
4) create analysis document with actual code changes without seeing the code (wait for step 8), post it on forum (no jira)
5) receive review on analysis document, fix it and post (no jira, redmine etc from now till the end of rant)
6) after analysis is approved make a checkout request
7) source code manager checkouts files from svn and posts them on forum along with the files list
8) you make actual changes to the code, post changed sources on forum
9) source code manager makes a review to check that amendment commet is present in source code and is properly tagged, and every line of code chnged is properly tagged (you are not allowed to delete anything, not even one space, you need to comment it (and put an appropriate tag))
10) after you passed review you fill in standard compilation request form
11) you code is compiled and elf is put on testing stand
12) you fill in "actual behaviour" and "expected behaviour" columns near description of changed function in template of unit test plan document (yeah we have unit testing) and post it on forum
13) if testing ok changed sources and compiled elfs along with its versions (cksum) commited to svn (not by you, there is a source code manager for that)
14) if someone developed function in same source file as you "commited" he is warned by source code manager and fills checkout request form again
15) ...2 -
A year ago I built my first todo, not from a tutorial, but using basic libraries and nw.js, and doing basic dom manipulations.
It had drag n drop, icons, and basic saving and loading. And I was satisfied.
Since then I've been working odd jobs.
And today I've decided to stretch out a bit, and build a basic airtable clone, because I think I can.
And also because I hate anything without an offline option.
First thing I realized was I wasn't about to duplicate all the features of a spreadsheet from scratch. I'd need a base to work from.
I spent about an hour looking.
Core features needed would be trivial serialization or saving/loading.
Proper event support for when a cell, row, or column changed, or was selected. Necessary for triggering validation and serialization/saving.
Custom column types.
Embedding html in cells.
Reorderable columns
Optional but nice to have:
Changeable column width and row height.
Drag and drop on rows and columns.
Right click menu support out of the box.
After that hour I had a few I wanted to test.
And started looking at frameworks to support the SPA aspects.
Both mithril and riot have minimal router support. But theres also a ton of other leightweight frameworks and libraries worthy of prototyping in, solid, marko, svelte, etc.
I didn't want to futz with lots of overhead, babeling/gulping/grunting/webpacking or any complex configuration-over-convention.
Didn't care for dom vs shadow dom. Its a prototype not a startup.
And I didn't care to do it the "right way". Learning curve here was antithesis to experimenting. I was trying to get away from plugin, configuration-over-convention, astronaut architecture, monolithic frameworks, the works.
Could I import the library without five dozen dependancies and learning four different tools before getting to hello world?
"But if you know IJK then its quick to get started!", except I don't, so it won't. I didn't want that.
Could I get cheap component-oriented designs?
Was I managing complex state embedded in a monolith that took over the entire layout and conventions of my code, like the world balanced on the back of a turtle?
Did it obscure the dom and state, and the standard way of doing things or *compliment* those?
As for validation, theres a number of vanilla libraries, one of which treats validation similar to unit testing, which seems kinda novel.
For presentation and backend I could do NW.JS, which would remove some of the complications, by putting everything in one script. Or if I wanted to make it a web backend, and avoid writing it in something that ran like a potato strapped to a nuclear rocket (visual studio), I could skip TS and go with python and quart, an async variation of flask.
This has the advantage that using something thats *not* JS, namely python, for interacting with a proper database, and would allow self-hosting or putting it online so people can share data and access in real time with others.
And because I'm horrible, and do things the wrong way for convenience, I could use tailwind.
Because it pisses people off.
How easy (or hard) would it be to recreate a basic functional clone of the core of airtable?
I don't know, but I have feeling I'm going to find out!1 -
Vague requirement for feature A received from client
Business consultant refines
Example mapping done
Acceptance criteria defined
Scheduled in sprint
Development done
Unit tests passed
Pull request reviewed
Code merged and deployed to system test
Functional testing successful
Deployed to UAT
Client asked to sign off
Client: "Actually I don't want that feature." -
!rant
Using Java is there a framework for building functional tests?
For unit testing we use JUnit but when I'm writing my code, often I need to debug against an actual db, for example, to be able check it actually will work and return the results I expected (and mocked in the unit test).1 -
One of my Computer Science modules this year revolved around completing a team project, and one person in the team basically fucked it up for all of us in the last minute.
We had to create a simple task management app for a fictional company, the university did not care about how the program looked and all that mattered was if the app is functional or not. The app relied heavily on a database, so all we basically had to do was get, modify, and add data from a database. Now this person did his part of the programming, but with an outdated database model and did not even test his code as he said MySQL wasn't working on his home computer.
2 days before the final deadline is when we decided to merge everything together in the git repo (as that's when the rest of us finished our tasks), and that's when we found out none of his code worked. We then spent the next 48 hours with little sleep to try our best to fix everything, but unfortunately due to his tasks carrying a majority of the complexity of the program we couldn't fix it all in time and we ended up losing roughly 50% of the marks.
This all probably could have been avoided if one person in the team did look at his git branch properly, but this person was the programming lead of the project and didn't ask for any help at any point until the last moment when we merged everything together. Oh well though, at least I've learnt better for the next team project that I do2 -
Congratulated a Dev at my company after he had finished all the functional testing...
Until he mentioned that he just needs to tweak the test to work with the new code now.. -
I was supposed to write test cases for existing code using gtest. No one wrote any test cases in our team but the framework setup was there. Cmakelist
I did everything I could but just could solve a linking error.
Asked all the senior people about my issue. No one could solve it in 10 minutes and it was also not a functional requirement so no one really bothered. I tried and tried and tried. After 2 weeks 3 days. On Thursday morning at 11 oclock I could solve it. I was under a lot of stress. Seriously those days were bad 😔
My manager used to think I'm technically weak. Now things have changed. And Cmakelist is awesome. -
Nextjs
I just realized
unit tests and integration tests dont exist in nextjs
So now i wondered
What about integrating AWS cloud functions with nextjs?
What about docker with nextjs?
Kubernetes with nextjs??
How TF do u implement a CI/CD pipeline with nextjs if there is nothing to test?!?!??
Nextjs seems like itself is self sufficient. WTF? Everything has been packed and cluttered into 1 giant pile of horsedump and called Nextjs Framework where you dont need k8s to run it or anything. Might as well then rename this fucking "framework" to GOD of all frameworks since it appears it can fucking do anything and everything without requiring HEAVY DevOps bullshit.
ALL of it can be cluttered in 1 nextjs project and you have a fully functional production working website that can basically do ANYTHING and EVERYTHING.
How???
Am i fucking going insane? Am i missing something here??19 -
Modern Web Developer
(To the tune of "I Am the Very Model of a Modern Major-General" from Gilbert and Sullivan's "The Pirates of Penzance")
I am the very model of a modern web developer
I’m quite fluent with JavaScript; An HTML whisperer
My code is clean and elegant, I genuinely innovate
And even know my way around a Promise and async / await
I’m very well acquainted too with matters vector graphical
I understand why SVG coordinates seem magical
And even without Photoshop I elegantly can produce
A mockup or a logo in most any format that you choose
[Chorus]
A mockup or a logo in most any format that you choose
A mockup or a logo in most any format that you choose
A mockup or a logo in most any format that you choose
I'm quite adept at ES6 expressions like destructuring
I know the ins and outs of functional reactive programming
In short, in matters browser-based or Node.js if you prefer
I am the very model of a modern web developer
[Chorus]
He is the very model of a modern web developer
I know our mythic history, the humble start, the browser wars
I know why Douglas Crockford fought the battle over ES4
The World Wide Web Consortium and Ecma International
My knowledge of our legacy is truly supernatural
With LESS and SASS and CSS, designing for mobility
I’ll perfectly apply the right amount of specificity
From custom fonts and parallax to grid and flex and border-box
I know most every tip and trick both common and unorthodox
[Chorus]
He knows most every tip and trick both common and unorthodox
He knows most every tip and trick both common and unorthodox
He knows most every tip and trick both common and unorthodox
And when it comes to lazy loading, bundling up and splitting code
There’s nothing quite like Webpack, which of course is built on top of Node
Considering my resume, I’m certain that you will concur
I am the very model of a modern web developer
[Chorus]
He is the very model of a modern web developer
When new frameworks and libraries emerge I must be ravenous
And gobble up the hot new thing, my appetite is bottomless
React and Vue and Angular, Immutable, RxJS
The list will be outdated long before I'm finished singing this
My pull requests rely on multitudinous utilities
To help me lint and test and build, a deluge of analyses
And every single day there are a hundred thousand more to learn
The web is going through an irresponsible amount of churn
[Chorus]
The web is going through an irresponsible amount of churn
The web is going through an irresponsible amount of churn
The web is going through an irresponsible amount of churn
This pace is agonizing! Code from yesterday is obsolete!
The speed of innovation is enough to knock me off my feet!
It's happening too fast! I can’t keep up! I’m tired! It’s all a blur!
I am the very model of a modern web developer!
[Chorus]
He is the very model of a modern web developer!1 -
Upgrading my tech skills.. Once again I feel my personal my personal dev environment and told are much more up-to-date than what I use at work.... Though the book Kim reading is on TDD and was written 3 years ago.
Maybe I should read another on in cloud services and ML... but don't have any motivation for these topics.
I need TDD for work because now we're emphasizing unit test coverage...
I usually only use manual functional tests to verify the final outputs as either the testing framework is broken (JS) or I don't have time to relearn the frameworks for the particular language...
Anyway got off topic... So questions after:
1. Do you ever feel your technologically always more ahead than what you do at work and essentially you bring skills to the job but you don't learn much out of it?
2. How do you test? I actually got into a bit of a argument/discussion with my colleagues about how to implement unit tests. Apparently there are 2 ways to test? Black box vs WhiteBox. She said she tests only Public methods using mock inputs, dependencies. She read online and seems there is an opinion that should only test public functions and if you can't then your app is designed incorrectly, not separated enough.
For me I test the private functions individually (WhiteBox/Java reflection) because the public one is like generateReport and as a whole is like a Pachinko machine, too many unique paths that would need a test case for.
So thoughts? Yes sorry for turning it into a remake I guess...24 -
#Suphle Rant 7: transphporm failure
In this issue, I'll be sharing observations about 3 topics.
First and most significant is that the brilliant SSR templating library I've eyed for so many years, even integrated as Suphle's presentation layer adapter, is virtually not functional. It only works for the trivial use case of outputting the value of a property in the dataset. For instance, when validation fails, preventing execution from reaching the controller, parsing fails without signifying what ordinance was being violated. I trim the stylesheet and it only works when outputting one of the values added by the validation handler. Meaning the missing keys it can't find from controller result is the culprit.
Even when I trimmed everything else for it to pass, the closing `</li>` tag seems to have been abducted.
I mail project owner explaining what I need his library for, no response. Chat one of the maintainers on Twitter, nothing. Since they have no forum, I find their Gitter chatroom, tag them and post my questions. Nothing. The only semblance of a documentation they have is the Github wiki. So, support is practically dead. Project last commit: 2020. It's disappointing that this is how my journey with them ends. There isn't even an alternative that shares the same philosophy. It's so sad to see how everybody is comfortable with PHP templating syntax and back end logic entagled within their markup.
Among all other templating libraries, Blade (which influenced my strong distaste for interspersing markup and PHP), seems to be the most popular. First admission: We're headed back to the Blade trenches, sadly.
2nd Topic: While writing tests yesterday, I had this weird feeling about something being off. I guess that's what code smell is. I was uncomfortable with the excessive amount of mocking wrappers I had to layer upon SUT before I can observe whether the HTML adapter receives expected markup file, when I can simply put a `var_dump` there. There's a black-box test for verifying the output but since the Transphporm headaches were causing it to fail, I tried going white-box. The mocking fixture was such a monstrosity, I imagined Sebastian Bergmann's ghost looking down in abhorrence over how much this Degenerate is perverting and butchering his creation.
I ultimately deleted the test travesty but it gave rise to the question of how properly designed system really is. Or, are certain things beyond testing white box? Are there still gaps in the testing knowledge of a supposed testing connoisseur? 2nd admission.
Lastly, randomly wanted to tweet an idea at Tomas Votruba. Visited his profile, only to see this https://twitter.com/PovilasKorop/.... Apparently, Laravel have implemented yet another feature previously only existing in Suphle (or at the libraries Arkitekt and Deptrac). I laughed mirthlessly as I watch them gain feature-parity under my nose, when Suphle is yet to be launched. I refuse to believe they're actually stalking Suphle3 -
So, in a microservice or web service pattern what is most important unitary test or functional test?