MigrationPluginManagerTest.php in Drupal 8

Namespace

Drupal\Tests\migrate\Unit

File

core/modules/migrate/tests/src/Unit/MigrationPluginManagerTest.php

<?php

namespace Drupal\Tests\migrate\Unit;

use Drupal\migrate\Plugin\Migration;
use Drupal\migrate\Plugin\MigrationPluginManager;
use Drupal\Tests\UnitTestCase;

/**
 * @coversDefaultClass \Drupal\migrate\Plugin\MigrationPluginManager
 * @group migrate
 */
class MigrationPluginManagerTest extends UnitTestCase {

  /**
   * A plugin manager.
   *
   * @var \Drupal\migrate\Plugin\MigrationPluginManager
   */
  protected $pluginManager;

  /**
   * {@inheritdoc}
   */
  public function setUp() {
    parent::setUp();

    // Get a plugin manager for testing.
    $module_handler = $this
      ->createMock('Drupal\\Core\\Extension\\ModuleHandlerInterface');
    $cache_backend = $this
      ->createMock('Drupal\\Core\\Cache\\CacheBackendInterface');
    $language_manager = $this
      ->createMock('Drupal\\Core\\Language\\LanguageManagerInterface');
    $this->pluginManager = new MigrationPluginManager($module_handler, $cache_backend, $language_manager);
  }

  /**
   * Tests building dependencies for multiple migrations.
   *
   * @dataProvider dependencyProvider
   */
  public function testDependencyBuilding($migrations_data, $result_ids) {
    $migrations = [];
    foreach ($migrations_data as $migration_id => $migration_data) {
      $migrations[$migration_id] = new TestMigrationMock($migration_id, $migration_data['dependencies']);
    }
    $ordered_migrations = $this->pluginManager
      ->buildDependencyMigration($migrations, []);

    // Verify results.
    $this
      ->assertEquals($result_ids, array_keys($ordered_migrations));
    foreach ($migrations_data as $migration_id => $migration_data) {
      $migration = $migrations[$migration_id];
      $requirements = $migration_data['result_requirements'];
      if (empty($requirements)) {
        $this
          ->assertEquals([], $migration->set);
      }
      else {
        $requirements = array_combine($requirements, $requirements);
        $this
          ->assertCount(1, $migration->set);
        list($set_prop, $set_requirements) = reset($migration->set);
        $this
          ->assertEquals('requirements', $set_prop);
        $this
          ->assertEquals($requirements, $set_requirements);
      }
    }
  }

  /**
   * Provide dependency data for testing.
   */
  public function dependencyProvider() {
    return [
      // Just one migration, with no dependencies.
      [
        [
          'm1' => [
            'dependencies' => [],
            'result_requirements' => [],
          ],
        ],
        [
          'm1',
        ],
      ],
      // Just one migration, with required dependencies.
      [
        [
          'm1' => [
            'dependencies' => [
              'required' => [
                'required1',
                'required2',
              ],
            ],
            'result_requirements' => [
              'required1',
              'required2',
            ],
          ],
        ],
        [
          'm1',
        ],
      ],
      // Just one migration, with optional dependencies.
      [
        [
          'm1' => [
            'dependencies' => [
              'optional' => [
                'optional1',
              ],
            ],
            'result_requirements' => [],
          ],
        ],
        [
          'm1',
        ],
      ],
      // Multiple migrations.
      [
        [
          'm1' => [
            'dependencies' => [
              'required' => [
                'required1',
                'required2',
              ],
            ],
            'result_requirements' => [
              'required1',
              'required2',
            ],
          ],
          'm2' => [
            'dependencies' => [
              'optional' => [
                'optional1',
              ],
            ],
            'result_requirements' => [],
          ],
        ],
        [
          'm1',
          'm2',
        ],
      ],
      // Multiple migrations, reordered due to optional requirement.
      [
        [
          'm1' => [
            'dependencies' => [
              'optional' => [
                'm2',
              ],
            ],
            'result_requirements' => [],
          ],
          'm2' => [
            'dependencies' => [
              'optional' => [
                'optional1',
              ],
            ],
            'result_requirements' => [],
          ],
        ],
        [
          'm2',
          'm1',
        ],
      ],
      // Ensure that optional requirements aren't turned into required ones,
      // if the last migration has no optional deps.
      [
        [
          'm1' => [
            'dependencies' => [
              'optional' => [
                'm2',
              ],
            ],
            'result_requirements' => [],
          ],
          'm2' => [
            'dependencies' => [],
            'result_requirements' => [],
          ],
        ],
        [
          'm2',
          'm1',
        ],
      ],
    ];
  }

}

/**
 * A mock migration plugin.
 *
 * Why are we using a custom class here?
 *
 * 1. The function buildDependencyMigration() calls $migration->set(), which
 * is not actually in MigrationInterface.
 *
 * 2. The function buildDependencyMigration() calls array_multisort on an
 * array with mocks in it. PHPUnit mocks are really complex, and if PHP tries
 * to compare them it will die with "Nesting level too deep".
 */
class TestMigrationMock extends Migration {

  /**
   * The values passed into set().
   *
   * @var array
   */
  public $set = [];

  /**
   * TestMigrationMock constructor.
   */
  public function __construct($id, $dependencies) {

    // Intentionally ignore parent constructor.
    $this->id = $id;
    $this->dependencies = $dependencies;
  }

  /**
   * {@inheritdoc}
   */
  public function id() {
    return $this->id;
  }

  /**
   * {@inheritdoc}
   */
  public function getMigrationDependencies() {
    return $this->dependencies;
  }

  /**
   * {@inheritdoc}
   */
  public function set($prop, $value) {
    $this->set[] = func_get_args();
  }

}

Classes

Name	Description
MigrationPluginManagerTest	@coversDefaultClass \Drupal\migrate\Plugin\MigrationPluginManager @group migrate
TestMigrationMock	A mock migration plugin.