Infection: What are the lowest supported versions of each test framework that infection supports?

[BackEndTea]

TODO:

• [ ] Find out exactly what the lowsest versions are of each supported test framework
• [ ] Add documentation for that on https://github.com/infection/site
• [ ] Add an e2e test that requires the use of that version, so we know if we no longer support that version
• [ ] Add a constraint to composer.json

[maks-rafalko]

The lowest versions I worked with using infection are:

• PHPUnit 5.5.7
• phpspec 3.4.0

But I don't know exactly the minimum ones

[theofidry]

We also should have a conflict rule in the composer.json for it. It won't help with the PHAR (yet at least) but still worth it IMO :)

[BackEndTea]

@theofidry I'm sorry i dont follow what you mean

[theofidry]

I mean something like this. It's not a good example because it should prevent Symfony 5. But when you install Infection as a library it will prevent you to be able to install it if you have the wrong versions

[sidz]

lowest version for the different versions of php interpreter will be different. For example phpUnit < 6 and with php 7.2 will throw Fatal error:

PHP Fatal error:  Declaration of SebastianBergmann\Comparator\DOMNodeComparator::assertEquals($expected, $actual, $delta = 0, $canonicalize = false, $ignoreCase = false) must be compatible with SebastianBergmann\Comparator\ObjectComparator::assertEquals($expected, $actual, $delta = 0, $canonicalize = false, $ignoreCase = false, array &$processed = Array) in phar:///var/www/infection/phpunit-5.7.9.phar/sebastian-comparator/DOMNodeComparator.php on line 110
PHP Stack trace:
PHP   1. {main}() /var/www/infection/phpunit-5.7.9.phar:0

Fatal error: Declaration of SebastianBergmann\Comparator\DOMNodeComparator::assertEquals($expected, $actual, $delta = 0, $canonicalize = false, $ignoreCase = false) must be compatible with SebastianBergmann\Comparator\ObjectComparator::assertEquals($expected, $actual, $delta = 0, $canonicalize = false, $ignoreCase = false, array &$processed = Array) in phar:///var/www/infection/phpunit-5.7.9.phar/sebastian-comparator/DOMNodeComparator.php on line 110

Call Stack:
    0.0068     869280   1. {main}() /var/www/infection/phpunit-5.7.9.phar:0

right now I don't see a better way than mark phpUnit < 6.0 as conflicted

[BackEndTea]

I'd say if the constraint is due to php versions its not a problem for us. But if for example we use options that were not introduced before a certain phpunit version. We should notify the end users