ServiceLocatorTestCase.php

<?php


/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace Symfony\Contracts\Service\Test;

use PHPUnit\Framework\TestCase;
use Psr\Container\ContainerExceptionInterface;
use Psr\Container\ContainerInterface;
use Psr\Container\NotFoundExceptionInterface;
use Symfony\Contracts\Service\ServiceLocatorTrait;
abstract class ServiceLocatorTestCase extends TestCase {
    protected function getServiceLocator(array $factories) : ContainerInterface {
        return new class ($factories) implements ContainerInterface {
            use ServiceLocatorTrait;

};
    }
    public function testHas() {
        $locator = $this->getServiceLocator([
            'foo' => fn() => 'bar',
            'bar' => fn() => 'baz',
            fn() => 'dummy',
        ]);
        $this->assertTrue($locator->has('foo'));
        $this->assertTrue($locator->has('bar'));
        $this->assertFalse($locator->has('dummy'));
    }
    public function testGet() {
        $locator = $this->getServiceLocator([
            'foo' => fn() => 'bar',
            'bar' => fn() => 'baz',
        ]);
        $this->assertSame('bar', $locator->get('foo'));
        $this->assertSame('baz', $locator->get('bar'));
    }
    public function testGetDoesNotMemoize() {
        $i = 0;
        $locator = $this->getServiceLocator([
            'foo' => function () use (&$i) {
                ++$i;
                return 'bar';
            },
        ]);
        $this->assertSame('bar', $locator->get('foo'));
        $this->assertSame('bar', $locator->get('foo'));
        $this->assertSame(2, $i);
    }
    public function testThrowsOnUndefinedInternalService() {
        $locator = $this->getServiceLocator([
            'foo' => function () use (&$locator) {
                return $locator->get('bar');
            },
        ]);
        if (!$this->getExpectedException()) {
            $this->expectException(NotFoundExceptionInterface::class);
            $this->expectExceptionMessage('The service "foo" has a dependency on a non-existent service "bar". This locator only knows about the "foo" service.');
        }
        $locator->get('foo');
    }
    public function testThrowsOnCircularReference() {
        $locator = $this->getServiceLocator([
            'foo' => function () use (&$locator) {
                return $locator->get('bar');
            },
            'bar' => function () use (&$locator) {
                return $locator->get('baz');
            },
            'baz' => function () use (&$locator) {
                return $locator->get('bar');
            },
        ]);
        $this->expectException(ContainerExceptionInterface::class);
        $this->expectExceptionMessage('Circular reference detected for service "bar", path: "bar -> baz -> bar".');
        $locator->get('foo');
    }

}