this post was submitted on 19 Jan 2024
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[–] [email protected] 27 points 11 months ago

There's teams of people on the right at my company and while they're able to build just about anything they're asked to in wicked time, one look at their codebase makes you want to quit and become a farmer.

Unfortunately I've had to do work in their repos before and I would ALWAYS prefer working with someone who aims for 100% test coverage

[–] [email protected] 25 points 11 months ago

100% code coverage, integration tests passing. Deploys to prod. NullPointerException at 3am

(╯°□°)╯︵ ┻━┻

[–] [email protected] 20 points 11 months ago* (last edited 11 months ago) (2 children)

.000001 Galaxy brain guy:

100% test coverage has been failing for months, the codebase is more debt than tech - send it, nothing matters anymore.

[–] [email protected] 14 points 11 months ago

More debt than tech. I'm going to use this one haha

[–] [email protected] 2 points 11 months ago

can you send me the bibtex format to quote this when doing my presentation?

[–] [email protected] 18 points 11 months ago* (last edited 11 months ago)

You need unit tests for maintenance and refactoring.

Yes it may work, but now is the moment you still understand your code. Write that fucking docs and put in basic unit tests now.

[–] [email protected] 15 points 11 months ago (1 children)

100% code coverage is a bullshit metric that nobody should aim for.

[–] [email protected] 7 points 11 months ago* (last edited 11 months ago)

We should strive for a wide range of test cases. Real testing is done when the software is tested against a wide range of user inputs. Code coverage is no indicator of response to cases.

Unit tests are a fantastic way of implementing test cases. I am of the opinion that most bug PRs should start with a unit test, if nothing else, a persistent reminder that: hey BTW, your user is going to input this garbage, so any logic you implement ALSO has to be resilient against that garbage.

[–] [email protected] 11 points 11 months ago (3 children)

I'm in this meme, and I don't like it (I'm on the left, aspiring to be in the middle)

[–] [email protected] 9 points 11 months ago

I'm in the middle and I don't always like it. 100% coverage is mandatory for the industry I work in though. I get that module testing is important but it can be such a chore to work on. I got pulled in to help write tests for another project this month and that is somewhere between watching grass grow and watching paint dry in terms of level of excitement.

[–] [email protected] 2 points 11 months ago

I'm in this meme and I don't like it. I float around depending on what thought crosses the mind of the person above me most recently, so I've long since decided to stop caring about such "minor details" :-(.

[–] [email protected] 2 points 11 months ago

I'm in the middle but happy to be there - shit will occasionally break but we have coverage of all the important stuff... And it's good coverage - coverage percentage is a bullshit metric that provides a false sense of security because it's by line.

[–] [email protected] 8 points 11 months ago* (last edited 11 months ago)

There’s nothing to test when your data structure can’t represent an invalid state. So many tests are being basic stuff like checking nil & empty lists; basic ADTs can design you out of that whole host of invalid states. Further, if your language only allows side effects at the edges of the application & data types are immutable, you are way less likely to need all these mock utils or get unexpected changes to your data.

[–] [email protected] 7 points 11 months ago (2 children)

And how to test the unit tests?

[–] [email protected] 5 points 11 months ago

At my organization we have unit tests about our unit testing framework... I could never be assed to write these myself but I'm fine not needlessly deleting the work other people wrote. It does feel incredibly silly though.

[–] [email protected] 5 points 11 months ago

Who watches the Watchmen?

[–] [email protected] 1 points 11 months ago (1 children)

just do everything in Isabelle and prove correctness, ezpz no tests required

[–] [email protected] 2 points 11 months ago (1 children)
[–] [email protected] 2 points 11 months ago (1 children)
[–] [email protected] 1 points 11 months ago

~~Blockier than I remember~~
So that's it, I read its overview, looks really powerful! Also goes way over my head