getFilesLoader example

use PHPUnit\Framework\TestCase;
use Symfony\Component\Validator\Mapping\ClassMetadata;
use Symfony\Component\Validator\Mapping\Loader\LoaderInterface;
use Symfony\Component\Validator\Tests\Fixtures\FilesLoader;
use Symfony\Component\Validator\Tests\Fixtures\NestedAttribute\Entity;

class FilesLoaderTest extends TestCase
{
    public function testCallsGetFileLoaderInstanceForeachPath()
    {
        $loader = $this->getFilesLoader($this->createMock(LoaderInterface::class));
        $this->assertEquals(4, $loader->getTimesCalled());
    }

    public function testCallsActualFileLoaderForMetadata()
    {
        $fileLoader = $this->createMock(LoaderInterface::class);
        $fileLoader->expects($this->exactly(4))
            ->method('loadClassMetadata');
        $loader = $this->getFilesLoader($fileLoader);
        $loader->loadClassMetadata(new ClassMetadata(Entity::class));
    }