Use PHPUnit assertions in Behat context classes

[everzet]

In Behat contexts, when you're making assertions, you can use PHPUnit to do that for you. The benefit of that is shorter, more familiar syntax + Behat supports PHPUnit assertions out of the box and prints proper diffs and clear messages on failure.

So this could be neatly replaced with something like this.

[Ocramius]

@everzet that is an idea, but I'd probably go for beberlei/assert instead. Thanks for the hint btw!

[coudenysj]

@Ocramius Should I use beberlei/assert and refactor it?

[malukenho]

@coudenysj feel free to do it.