Mutation Testing library for PHP based on AST
Joined July 2017
- Tweets 428
- Following 1
- Followers 2,262
- Likes 490
24 Photos and videos
May 17
Infection 0.33.0 has been released.
- Testo test framework support (by @roxblnfk)
- Allow using the full width of the terminal for console output
Enjoy!
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May 14
Do you use Infection with AI-generated code/tests? If so, what is the workflow / skills / prompts?
Is there anything we need to improve here to make it more useful?
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Infection PHP retweeted
May 7
Lately I've been working on integrating #Testo #PHP with @infection_php
There's still more ahead, but in the meantime you can read my fresh article about mutation testing
php-testo.github.io/docs/the…
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Infection PHP retweeted
I use it in a project and it's a killer feature! 🚀
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Now officially: Infection supports killing mutants by Static Analysis tools:
- PHPStan
- Mago
infection.github.io/guide/st…
Enjoy!
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Jan 14
Infection 0.32.3 has been released with new `--max-timeouts` and `--with-timeouts` options.
Read the details in this blog post to understand how it helps with speeding up Mutation Testing and why you should start using them!
infection.github.io/2026/01/…
Thanks @sanmai!
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25 Dec 2025
🎄 Xmas present
Infection 0.32.0 has been released:
- Format-presering pretty printing
- new GitHub loggers with collapsable sections
- Symfony 8 support; webmozart/assert@v2 support
- and much more
github.com/infection/infecti…
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Infection PHP retweeted
Looks like #phpunit xml code-coverage generation could get nearly twice as fast in the future.
this would for example considerably reduce overhead of the necessary "initial-test" step when running @infection_php on your project.
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27 Oct 2025
.@phpstan has added @infection_php for PRs on GH Actions with a set of custom rules 🚀
github.com/phpstan/phpstan-s…
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10 Oct 2025
.@xepozz started working on Infection Plugin for @phpstorm, please share your ideas here: github.com/infection/infecti…
- What would you like to see?
- How would you use it?
- Where would you want to see Mutants diffs?
Let's make it useful.
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9 Oct 2025
💡TIP: It's worth to remind that you can use `php://stdout` or `php://stderr` channels to report Infection's details directly to the console when you use it on CI, for example.
12 Nov 2019
The next version of Infection will have an ability to log mutation results directly to stdout/stderr, which is useful for CI. Thank you @duncan3dc
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17 Sep 2025
Thank you @lambdatesting for sponsoring our Open Source work on Infection.
We already have 4 companies and a bunch of individuals who support us on GitHub.
If you or you company(!) relies on Infection - please support us.
github.com/sponsors/infectio…
Thank you all.
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Infection PHP retweeted
Blogged about my hands-on experience with @infection_php
Its a short super top level article to give you an overall idea what to expect from it.
what do you think about that? feedback welcome.
staabm.github.io/2025/08/01/…
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28 Jul 2025
Starting from 0.31.0, Infection doesn't mutate uncovered code by default anymore.
Read upgrade guide: github.com/infection/infecti…
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Infection PHP retweeted
In case you are getting timed-out #mutants while mutation testing with @infection_php (e.g. because of infinite loops), the upcoming release should run faster for you.
on infection/infection with 16 timed-out mutants, we saw a ~21% perf boost 🚀
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3 Jul 2025
So now we have an experimental @phpstan integration in Infection, by `--static-analysis-plugin=phpstan`.
Let's try to do the same for @psalmphp - created a feature request to make it possible: github.com/vimeo/psalm/discu…
Give it some love!
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Infection PHP retweeted
past few weeks I have concentrated my opensource efforts onto @infection_php. focus was on developer experience - make it easer for newcomers to apply the tool and reduce noise by removing redundant mutations.
this got just released. feedback welcome.
#dx #mutationtesting
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1 Jul 2025
Periodic question: what is the most wanted feature you would like us to implement in the near future?
Any ideas or something that bothers you?
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