ContainerCommandLoader example

use PHPUnit\Framework\TestCase;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\CommandLoader\ContainerCommandLoader;
use Symfony\Component\Console\Exception\CommandNotFoundException;
use Symfony\Component\DependencyInjection\ServiceLocator;

class ContainerCommandLoaderTest extends TestCase
{
    public function testHas()
    {
        $loader = new ContainerCommandLoader(new ServiceLocator([
            'foo-service' => fn () => new Command('foo'),
            'bar-service' => fn () => new Command('bar'),
        ]), ['foo' => 'foo-service', 'bar' => 'bar-service']);

        $this->assertTrue($loader->has('foo'));
        $this->assertTrue($loader->has('bar'));
        $this->assertFalse($loader->has('baz'));
    }

    public function testGet()
    {