class PluginFormFactoryTest

class PluginFormFactoryTest extends UnitTestCase {
  
  /**
   * The class resolver.
   *
   * @var \Drupal\Core\DependencyInjection\ClassResolverInterface|\Prophecy\Prophecy\ProphecyInterface
   */
  protected $classResolver;
  
  /**
   * The manager being tested.
   *
   * @var \Drupal\Core\Plugin\PluginFormFactory
   */
  protected $manager;
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $this->classResolver = $this->prophesize(ClassResolverInterface::class);
    $this->manager = new PluginFormFactory($this->classResolver
      ->reveal());
  }
  
  /**
   * @covers ::createInstance
   */
  public function testCreateInstance() : void {
    $plugin_form = $this->prophesize(PluginFormInterface::class);
    $expected = $plugin_form->reveal();
    $this->classResolver
      ->getInstanceFromDefinition(get_class($expected))
      ->willReturn($expected);
    $plugin = $this->prophesize(PluginWithFormsInterface::class);
    $plugin->hasFormClass('standard_class')
      ->willReturn(TRUE);
    $plugin->getFormClass('standard_class')
      ->willReturn(get_class($expected));
    $form_object = $this->manager
      ->createInstance($plugin->reveal(), 'standard_class');
    $this->assertSame($expected, $form_object);
  }
  
  /**
   * @covers ::createInstance
   */
  public function testCreateInstanceUsingPlugin() : void {
    $this->classResolver
      ->getInstanceFromDefinition(Argument::cetera())
      ->shouldNotBeCalled();
    $plugin = $this->prophesize(PluginWithFormsInterface::class)
      ->willImplement(PluginFormInterface::class);
    $plugin->hasFormClass('configure')
      ->willReturn(TRUE);
    $plugin->getFormClass('configure')
      ->willReturn(get_class($plugin->reveal()));
    $form_object = $this->manager
      ->createInstance($plugin->reveal(), 'configure');
    $this->assertSame($plugin->reveal(), $form_object);
  }
  
  /**
   * @covers ::createInstance
   */
  public function testCreateInstanceUsingPluginWithSlashes() : void {
    $this->classResolver
      ->getInstanceFromDefinition(Argument::cetera())
      ->shouldNotBeCalled();
    $plugin = $this->prophesize(PluginWithFormsInterface::class)
      ->willImplement(PluginFormInterface::class);
    $plugin->hasFormClass('configure')
      ->willReturn(TRUE);
    $plugin->getFormClass('configure')
      ->willReturn('\\' . get_class($plugin->reveal()));
    $form_object = $this->manager
      ->createInstance($plugin->reveal(), 'configure');
    $this->assertSame($plugin->reveal(), $form_object);
  }
  
  /**
   * @covers ::createInstance
   */
  public function testCreateInstanceDefaultFallback() : void {
    $this->classResolver
      ->getInstanceFromDefinition(Argument::cetera())
      ->shouldNotBeCalled();
    $plugin = $this->prophesize(PluginWithFormsInterface::class)
      ->willImplement(PluginFormInterface::class);
    $plugin->hasFormClass('missing')
      ->willReturn(FALSE);
    $plugin->hasFormClass('fallback')
      ->willReturn(TRUE);
    $plugin->getFormClass('fallback')
      ->willReturn(get_class($plugin->reveal()));
    $form_object = $this->manager
      ->createInstance($plugin->reveal(), 'missing', 'fallback');
    $this->assertSame($plugin->reveal(), $form_object);
  }
  
  /**
   * @covers ::createInstance
   */
  public function testCreateInstancePluginAware() : void {
    $plugin_form = $this->prophesize(PluginFormInterface::class)
      ->willImplement(PluginAwareInterface::class);
    $expected = $plugin_form->reveal();
    $this->classResolver
      ->getInstanceFromDefinition(get_class($expected))
      ->willReturn($expected);
    $plugin = $this->prophesize(PluginWithFormsInterface::class);
    $plugin->hasFormClass('operation_aware')
      ->willReturn(TRUE);
    $plugin->getFormClass('operation_aware')
      ->willReturn(get_class($expected));
    $plugin_form->setPlugin($plugin->reveal())
      ->shouldBeCalled();
    $form_object = $this->manager
      ->createInstance($plugin->reveal(), 'operation_aware');
    $this->assertSame($expected, $form_object);
  }
  
  /**
   * @covers ::createInstance
   */
  public function testCreateInstanceDefinitionException() : void {
    $this->expectException(InvalidPluginDefinitionException::class);
    $this->expectExceptionMessage('The "the_plugin_id" plugin did not specify a "anything" form class');
    $plugin = $this->prophesize(PluginWithFormsInterface::class);
    $plugin->getPluginId()
      ->willReturn('the_plugin_id');
    $plugin->hasFormClass('anything')
      ->willReturn(FALSE);
    $form_object = $this->manager
      ->createInstance($plugin->reveal(), 'anything');
    $this->assertNull($form_object);
  }
  
  /**
   * @covers ::createInstance
   */
  public function testCreateInstanceInvalidException() : void {
    $this->expectException(InvalidPluginDefinitionException::class);
    $this->expectExceptionMessage('The "the_plugin_id" plugin did not specify a valid "invalid" form class, must implement \\Drupal\\Core\\Plugin\\PluginFormInterface');
    $expected = new \stdClass();
    $this->classResolver
      ->getInstanceFromDefinition(get_class($expected))
      ->willReturn($expected);
    $plugin = $this->prophesize(PluginWithFormsInterface::class);
    $plugin->getPluginId()
      ->willReturn('the_plugin_id');
    $plugin->hasFormClass('invalid')
      ->willReturn(TRUE);
    $plugin->getFormClass('invalid')
      ->willReturn(get_class($expected));
    $form_object = $this->manager
      ->createInstance($plugin->reveal(), 'invalid');
    $this->assertNull($form_object);
  }

}