I'd like to use breakpoint when use phpunit file. My project is a Symfony project and I use MAMP Pro 3.2.1
This is my configuration:

When I launch the Debug mode ( with the green bug in the top bar of PhpStorm) I receive this output:
/Applications/MAMP/bin/php/php5.6.7/bin/php -dxdebug.remote_enable=1 -dxdebug.remote_mode=req -dxdebug.remote_port=9000 -dxdebug.remote_host=127.0.0.1 /private/var/folders/0h/tzk_113d4_lcd6rf_bzwjmhr0000gn/T/ide-phpunit.php --configuration "/Users/bob/Documents/Lavori Personali/webCamBundle/app/phpunit.xml.dist" Barno\WebcamBundle\Tests\Controller\WebcamControllerTest "/Users/bob/Documents/Lavori Personali/webCamBundle/src/Barno/WebcamBundle/Tests/Controller/WebcamControllerTest.php"
Testing started at 14:03 ...
Process finished with exit code 255
Also if I use Breakpoint in my code

I checked the error on file and I found this
[02-Jun-2015 14:26:57 Europe/Berlin] PHP Warning: require_once(PHPUnit/Runner/Version.php): failed to open stream: No such file or directory in /private/var/folders/0h/tzk_113d4_lcd6rf_bzwjmhr0000gn/T/ide-phpunit.php on line 49
[02-Jun-2015 14:26:57 Europe/Berlin] PHP Stack trace:
[02-Jun-2015 14:26:57 Europe/Berlin] PHP 1. {main}() /private/var/folders/0h/tzk_113d4_lcd6rf_bzwjmhr0000gn/T/ide-phpunit.php:0
[02-Jun-2015 14:26:57 Europe/Berlin] PHP 2. IDE_PHPUnit_Loader::init() /private/var/folders/0h/tzk_113d4_lcd6rf_bzwjmhr0000gn/T/ide-phpunit.php:209
[02-Jun-2015 14:26:57 Europe/Berlin] PHP 3. IDE_PHPUnit_Loader::detectPHPUnitVersionId() /private/var/folders/0h/tzk_113d4_lcd6rf_bzwjmhr0000gn/T/ide-phpunit.php:196
[02-Jun-2015 14:26:57 Europe/Berlin] PHP Fatal error: require_once(): Failed opening required 'PHPUnit/Runner/Version.php' (include_path='.:/Applications/MAMP/bin/php/php5.6.7/lib/php') in /private/var/folders/0h/tzk_113d4_lcd6rf_bzwjmhr0000gn/T/ide-phpunit.php on line 49
[02-Jun-2015 14:26:57 Europe/Berlin] PHP Stack trace:
[02-Jun-2015 14:26:57 Europe/Berlin] PHP 1. {main}() /private/var/folders/0h/tzk_113d4_lcd6rf_bzwjmhr0000gn/T/ide-phpunit.php:0
[02-Jun-2015 14:26:57 Europe/Berlin] PHP 2. IDE_PHPUnit_Loader::init() /private/var/folders/0h/tzk_113d4_lcd6rf_bzwjmhr0000gn/T/ide-phpunit.php:209
[02-Jun-2015 14:26:57 Europe/Berlin] PHP 3. IDE_PHPUnit_Loader::detectPHPUnitVersionId() /private/var/folders/0h/tzk_113d4_lcd6rf_bzwjmhr0000gn/T/ide-phpunit.php:196