Configuration: operations to execute before launching a test

[mnapoli]

That would be useful if we could configure some operations to run before the tests, like pulling the git repository, generating the test database (i.e. run a shell script).

[alexandresalome]

It's very difficult here to state if it should be executed before each unit or before the test suite.

Additional examples:

• Composer commands
• Symfony2 commands
• Custom commands

We might add custom commands to project:

 $project
     ->addCommand('Reset', './reset.sh')
     ->addCommand('Composer install', 'composer install')
 ;

This would create buttons on project list.