public function testProcess() {
$container = new ContainerBuilder();
$container
->setAlias('bar', 'foo');
$def = $container
->register('moo')
->setArguments(array(
new Reference('bar'),
));
$this
->process($container);
$arguments = $def
->getArguments();
$this
->assertEquals('foo', (string) $arguments[0]);
}