Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\Tests\Component\Plugin;
Chris@0: 
Chris@0: use Drupal\Component\Plugin\Exception\PluginNotFoundException;
Chris@0: use PHPUnit\Framework\TestCase;
Chris@0: 
Chris@0: /**
Chris@0:  * @coversDefaultClass \Drupal\Component\Plugin\PluginManagerBase
Chris@0:  * @group Plugin
Chris@0:  */
Chris@0: class PluginManagerBaseTest extends TestCase {
Chris@0: 
Chris@0:   /**
Chris@0:    * A callback method for mocking FactoryInterface objects.
Chris@0:    */
Chris@0:   public function createInstanceCallback() {
Chris@0:     $args = func_get_args();
Chris@0:     $plugin_id = $args[0];
Chris@0:     $configuration = $args[1];
Chris@0:     if ('invalid' == $plugin_id) {
Chris@0:       throw new PluginNotFoundException($plugin_id);
Chris@0:     }
Chris@0:     return [
Chris@0:       'plugin_id' => $plugin_id,
Chris@0:       'configuration' => $configuration,
Chris@0:     ];
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Generates a mocked FactoryInterface object with known properties.
Chris@0:    */
Chris@0:   public function getMockFactoryInterface($expects_count) {
Chris@0:     $mock_factory = $this->getMockBuilder('Drupal\Component\Plugin\Factory\FactoryInterface')
Chris@0:       ->setMethods(['createInstance'])
Chris@0:       ->getMockForAbstractClass();
Chris@0:     $mock_factory->expects($this->exactly($expects_count))
Chris@0:       ->method('createInstance')
Chris@0:       ->willReturnCallback([$this, 'createInstanceCallback']);
Chris@0:     return $mock_factory;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Tests createInstance() with no fallback methods.
Chris@0:    *
Chris@0:    * @covers ::createInstance
Chris@0:    */
Chris@0:   public function testCreateInstance() {
Chris@0:     $manager = $this->getMockBuilder('Drupal\Component\Plugin\PluginManagerBase')
Chris@0:       ->getMockForAbstractClass();
Chris@0:     // PluginManagerBase::createInstance() looks for a factory object and then
Chris@0:     // calls createInstance() on it. So we have to mock a factory object.
Chris@0:     $factory_ref = new \ReflectionProperty($manager, 'factory');
Chris@0:     $factory_ref->setAccessible(TRUE);
Chris@0:     $factory_ref->setValue($manager, $this->getMockFactoryInterface(1));
Chris@0: 
Chris@0:     // Finally the test.
Chris@0:     $configuration_array = ['config' => 'something'];
Chris@0:     $result = $manager->createInstance('valid', $configuration_array);
Chris@0:     $this->assertEquals('valid', $result['plugin_id']);
Chris@0:     $this->assertEquals($configuration_array, $result['configuration']);
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Tests createInstance() with a fallback method.
Chris@0:    *
Chris@0:    * @covers ::createInstance
Chris@0:    */
Chris@0:   public function testCreateInstanceFallback() {
Chris@0:     // We use our special stub class which extends PluginManagerBase and also
Chris@0:     // implements FallbackPluginManagerInterface.
Chris@0:     $manager = new StubFallbackPluginManager();
Chris@0:     // Put our stubbed factory on the base object.
Chris@0:     $factory_ref = new \ReflectionProperty($manager, 'factory');
Chris@0:     $factory_ref->setAccessible(TRUE);
Chris@0: 
Chris@0:     // Set up the configuration array.
Chris@0:     $configuration_array = ['config' => 'something'];
Chris@0: 
Chris@0:     // Test with fallback interface and valid plugin_id.
Chris@0:     $factory_ref->setValue($manager, $this->getMockFactoryInterface(1));
Chris@0:     $no_fallback_result = $manager->createInstance('valid', $configuration_array);
Chris@0:     $this->assertEquals('valid', $no_fallback_result['plugin_id']);
Chris@0:     $this->assertEquals($configuration_array, $no_fallback_result['configuration']);
Chris@0: 
Chris@0:     // Test with fallback interface and invalid plugin_id.
Chris@0:     $factory_ref->setValue($manager, $this->getMockFactoryInterface(2));
Chris@0:     $fallback_result = $manager->createInstance('invalid', $configuration_array);
Chris@0:     $this->assertEquals('invalid_fallback', $fallback_result['plugin_id']);
Chris@0:     $this->assertEquals($configuration_array, $fallback_result['configuration']);
Chris@0:   }
Chris@0: 
Chris@0: }