@covers Symfony\Component\DependencyInjection\ContainerBuilder::findDefinition
public function testFindDefinition() {
$container = new ContainerBuilder();
$container
->setDefinition('foo', $definition = new Definition('FooClass'));
$container
->setAlias('bar', 'foo');
$container
->setAlias('foobar', 'bar');
$this
->assertEquals($definition, $container
->findDefinition('foobar'), '->findDefinition() returns a Definition');
}