I have installed PHPUnit via Composer and set it up to run the unit tests with my installation through settings.
But when I run the tests I get the following error for t
You should point to your vendor/autoload.php
at Settings | PHP | PHPUnit
when using PHPUnit via Composer.
This blog post has all the details (with pictures) to successfully configure IDE for such scenario: http://confluence.jetbrains.com/display/PhpStorm/PHPUnit+Installation+via+Composer+in+PhpStorm
Related usability ticket: http://youtrack.jetbrains.com/issue/WI-18388
P.S. The WI-18388 ticket is already fixed in v8.0