Add a comparator to help with writing tests

[willemstuursma]

PHPUnit offers the ability to add custom comparators. In particular these offer the ability to add nice error messages:

This is a rough PR as a first draft, if you are interested in this feature please let me know and I'll polish it up.

[mnapoli]

That sounds interesting!

So to sum up to use it I would need to run this:

\SebastianBergmann\Comparator\Factory::getInstance()->register(new \MyCLabs\Enum\PHPUnit\Comparator);

I've heard of PHPUnit "extensions" that can be added to phpunit.xml, do you know if those can be used as well to register the comparator?

[peter279k]

It looks like the Pretty CI is failed due to failed PSR-2 coding style check.

The detailed log is available here.

I think the coding style should be fixed :).

[mnapoli]

This is weird because the failures on EnumTest.php do not show up on master… I even rebuilt master right now and it's still green.

Maybe your branch is old, try rebasing your branch on master to have all the latest changes.

And then there's still one fix to do in your new file indeed.

[willemstuursma]

I've heard of PHPUnit "extensions" that can be added to phpunit.xml, do you know if those can be used as well to register the comparator?

That's only possible for test listeners, not for custom Comparators.

[mnapoli]

Roger that!

Thank you for the PR.

[willemstuursma]

I'll create a PR later to update the readme with the new functionality.

[mnapoli]

Thanks!