Testing Unit of DependencyInjection - unit-testing

Question

I'm using this example here to do my test unit of DependencyInjection, but, when I'm testing, I get the following error :
Myapp\MyBundle\Tests\DependencyInjection\MybundleExtensionTest::test Load
Argument 1 passed to Myapp\MyBundle\DependencyInjection\Configuration::buil
dPathNode() must be an instance of Myapp\MyBundle\DependencyInjection\NodeD
efinition, instance of Symfony\Component\Config\Definition\Builder\ArrayNodeDefi
nition given, called in E:\wamp\www\testingUnit\src\Myapp\MyBundle\Dependen
cyInjection\Configuration.php on line 33 and defined
DependencyInjection/MyappMybundleExtensions.php
<?php
namespace Myapp\Mybundle\DependencyInjection;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\Config\FileLocator;
use Symfony\Component\HttpKernel\DependencyInjection\Extension;
use Symfony\Component\DependencyInjection\Loader;
use Symfony\Component\Config\Definition\Processor;
class MybundleExtension extends Extension
{
/**
* Build the extension services
*
* #param array $configs
* #param ContainerBuilder $container
*/
public function load(array $configs, ContainerBuilder $container)
{
$processor = new Processor();
$configuration = new Configuration();
$config = $this->processConfiguration($configuration, $configs);
$loader = new Loader\YamlFileLoader($container, new FileLocator(__DIR__ . '/../Resources/config'));
$loader->load('file.yml');
$config = $processor->processConfiguration($configuration, $configs);
$container->setParameter('FashionWeb\ProductBundle\Controller\FamilyController::showFamilyAction', $config['action']);
}
}
Tests/DependencyInjection/MyappMyBundleExtensionsTest.php
namespace Myapp\Mybundle\Tests\DependencyInjection;
use Symfony\Component\DependencyInjection\ContainerBuilder;
class Myapp\MybundleExtensionTest extends \PHPUnit_Framework_TestCase
{
public function testLoad()
{
$container = new ContainerBuilder();
$extension = new MyappMybundleExtension();
$extension->load(array(), $container);
$this->assertEquals('FashionWeb\ProductBundle\Controller\FamilyController::showFamilyAction', $container->getParameter('myapp_mybundle.action'), sprintf('%s parameter is correct', 'myapp_mybundle.action'));
}
}

Answer 1

Do you have use Symfony\Component\Config\Definition\Builder\NodeDefinition; in your Configuration.php file ?
Error seems to be caused by missing use statement.