CheckCircularReferencesPassTest.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\Component\DependencyInjection\Tests\Compiler;

use Symfony\Component\DependencyInjection\Reference;
use Symfony\Component\DependencyInjection\Compiler\CheckCircularReferencesPass;
use Symfony\Component\DependencyInjection\Compiler\AnalyzeServiceReferencesPass;
use Symfony\Component\DependencyInjection\Compiler\Compiler;
use Symfony\Component\DependencyInjection\ContainerBuilder;
class CheckCircularReferencesPassTest extends \PHPUnit_Framework_TestCase {

  /**
   * @expectedException \Symfony\Component\DependencyInjection\Exception\ServiceCircularReferenceException
   */
  public function testProcess() {
    $container = new ContainerBuilder();
    $container
      ->register('a')
      ->addArgument(new Reference('b'));
    $container
      ->register('b')
      ->addArgument(new Reference('a'));
    $this
      ->process($container);
  }

  /**
   * @expectedException \Symfony\Component\DependencyInjection\Exception\ServiceCircularReferenceException
   */
  public function testProcessWithAliases() {
    $container = new ContainerBuilder();
    $container
      ->register('a')
      ->addArgument(new Reference('b'));
    $container
      ->setAlias('b', 'c');
    $container
      ->setAlias('c', 'a');
    $this
      ->process($container);
  }

  /**
   * @expectedException \Symfony\Component\DependencyInjection\Exception\ServiceCircularReferenceException
   */
  public function testProcessDetectsIndirectCircularReference() {
    $container = new ContainerBuilder();
    $container
      ->register('a')
      ->addArgument(new Reference('b'));
    $container
      ->register('b')
      ->addArgument(new Reference('c'));
    $container
      ->register('c')
      ->addArgument(new Reference('a'));
    $this
      ->process($container);
  }

  /**
   * @expectedException \Symfony\Component\DependencyInjection\Exception\ServiceCircularReferenceException
   */
  public function testDeepCircularReference() {
    $container = new ContainerBuilder();
    $container
      ->register('a')
      ->addArgument(new Reference('b'));
    $container
      ->register('b')
      ->addArgument(new Reference('c'));
    $container
      ->register('c')
      ->addArgument(new Reference('b'));
    $this
      ->process($container);
  }
  public function testProcessIgnoresMethodCalls() {
    $container = new ContainerBuilder();
    $container
      ->register('a')
      ->addArgument(new Reference('b'));
    $container
      ->register('b')
      ->addMethodCall('setA', array(
      new Reference('a'),
    ));
    $this
      ->process($container);
  }
  protected function process(ContainerBuilder $container) {
    $compiler = new Compiler();
    $passConfig = $compiler
      ->getPassConfig();
    $passConfig
      ->setOptimizationPasses(array(
      new AnalyzeServiceReferencesPass(true),
      new CheckCircularReferencesPass(),
    ));
    $passConfig
      ->setRemovingPasses(array());
    $compiler
      ->compile($container);
  }

}