DependencyContainerAcceptanceTest.php

<?php

require_once 'swift_required.php';

//This is more of a "cross your fingers and hope it works" test!

class Swift_DependencyContainerAcceptanceTest extends \PHPUnit_Framework_TestCase
{
    public function testNoLookupsFail()
    {
        $di = Swift_DependencyContainer::getInstance();
        foreach ($di->listItems() as $itemName) {
            try {
                // to be removed in 6.0
                if ('transport.mail' === $itemName) {
                    continue;
                }
                $di->lookup($itemName);
            } catch (Swift_DependencyException $e) {
                $this->fail($e->getMessage());
            }
        }
    }
}