ProjectLoader1 example

use Symfony\Component\Config\Exception\LoaderLoadException;
use Symfony\Component\Config\Loader\Loader;
use Symfony\Component\Config\Loader\LoaderInterface;
use Symfony\Component\Config\Loader\LoaderResolverInterface;

class LoaderTest extends TestCase
{
    public function testGetSetResolver()
    {
        $resolver = $this->createMock(LoaderResolverInterface::class);

        $loader = new ProjectLoader1();
        $loader->setResolver($resolver);

        $this->assertSame($resolver, $loader->getResolver(), '->setResolver() sets the resolver loader');
    }

    public function testResolve()
    {
        $resolvedLoader = $this->createMock(LoaderInterface::class);

        $resolver = $this->createMock(LoaderResolverInterface::class);
        $resolver->expects($this->once())