How can you use code coverage and mutation testing to add tests to legacy code? At @mendercon last year, I demonstrated this powerful technique step by step on the Gilded Rose kata, which is hosted by @emilybache on her GitHub account: https://github.com/emilybache/GildedRose-Refactoring-Kata

You can watch the talk here: https://www.youtube.com/watch?v=0qna5cuzDI0

After starting and stopping a half-dozen times over the last few months, I finally sat down last night and spent ~3hr writing my thoughts on #CodeCoverage.

TL;DR: It's not without merit, but it is not the metric that many people make it out to be.

https://stevegrunwell.com/blog/code-coverage/

New TIL: Fixing Coverage for Django’s manage.py test --parallel

Running Django tests in parallel but coverage reports are inaccurate? Parallel test execution can mess up coverage data, but here’s how to fix it properly!

Read more https://til.sanyamkhurana.com/#/topics/django/fixing-coverage-for-djangos-managepy-test-parallel

Looking for #phpunit code coverage dark-themes, are you using it?

Did not find any native support from PHPunit's tools, just some drop-in custom.css files.

Found so far just 2 of them:
1. https://github.com/chriswpage/phpunit-coverage-theme (updated 2024)

2. https://github.com/Porthorian/phpunit-code-coverage-theme (updated 2022)

From my preliminary research: the coverage tool is using bootstrap v4, while a dark-mode was only introduced in v5.3.

I should not dig into that migration path, or should I?

"Will you write component tests with me?"
Forget "Will you marry me?" as this is the real question of commitment. A perfect mix of unit and E2E tests, proving microservices true behaviour. Because nothing says "forever" like solid test coverage.

https://martinfowler.com/articles/microservice-testing/#conclusion-summary
#CodingLove #TestingIsCaring #Microservices #ComponentTesting #UnitTests #E2ETests #DevHumor #TechRomance #CodeCoverage #QA #DevLife #coding #developer

Since the existing plugins came with too many dependencies for my taste, or specialized on some aspect that didn't cover what I need, I'm working on a #Vim plugin to display code coverage in the sign column.

It's reading lcov-formatted files (which is why I don't have any dependencies) and displays for each line whether it's covered or not.

Still needs a bit of work to be convenient, but I like the result already.

**Improvements in .NET code coverage tooling**

https://devblogs.microsoft.com/dotnet/whats-new-in-our-code-coverage-tooling/?WT.mc_id=DOP-MVP-5001655

If you don't have C++ code, then apparently setting these properties will make things even faster:

```html
<EnableStaticNativeInstrumentation>False</EnableStaticNativeInstrumentation>
<EnableDynamicNativeInstrumentation>False</EnableDynamicNativeInstrumentation>
```

Does anybody have any code coverage reporting tools they particularly like? I'm aware of codecov.io. I'd like something that's easy to use, compatible with (at least) Rust, Go, and Python, is free for open source projects, isn't run by a bunch of greedy schmucks.

Edit: also I want to see code coverage results _before_ running CI if possible.

(it _seems_ like codecov might fit those boxes, but I don't know if there are other alternatives I should consider?)

This #Laravel project currently has a code coverage of 53.3%, let's see how far I can push this in a few hours!

Check out my new video over at the @phparch channel on "Determining Your #CodeCoverage with #phpunit".

https://www.youtube.com/watch?v=PFywmvzecno

Unterschied zwischen Testabdeckung und Codeabdeckung?
Die Code
https://www.dev-crowd.com/2022/11/07/unterschied-zwischen-testabdeckung-und-codeabdeckung/
#ExplorativesTesten #LoadandPerformance #Mocking #Penetrationtest #Projektmanagement #RestAPI #TestEngineering #Testautomatisierung #Testframework #Testlink #Testmanagement #Testplan #Testsuites #Tools #Apptesting #Codecoverage #crossbrowsertesting #flakytesting #ManualTesting #Penetrationtesting #pytest #Regressiontesting #testcoverage