The PHP 7 tests failing on Travis CI

[aik099]

The PHP 7 tests failing on Travis CI:

https://travis-ci.org/minkphp/MinkZombieDriver/builds/244589944

I guess this is because PHPUnit 6 is picked by Travis CI, which doesn't have PHPUnit_Framework_TestCase class.

Since we can't have test suite compatible with both PHPUnit 5 and PHPUnit 6 the best approach would be to indicating in .travis.yml to use PHPUnit 5 all the time.

Same should be done for other driver repos and main repo because they would fail eventually.

[rpkamp]

PHPUnit is installed through symfony/phpunit-bridge. This is currently pinned to ^4.0 in minkphp/driver-testsuite. This version of symfony/phpunit-bridge is explictly incompatible with PHPUnit 5 and lower (composer conflicts).

So I think the right approach here is not to make everything use PHPUnit 5, but update the tests to be compatible with (at least) PHPUnit 6.

[aik099]

Sure. Let's do this if that won't increase minimum supported PHP version by driver / test suite itself.

[rpkamp]

I started too, but the saw there already is a PR for this, and the tests are green on that one: #189 🙂