class EntityFormDisplayTest

class EntityFormDisplayTest extends KernelTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'field_ui',
        'field',
        'entity_test',
        'field_test',
        'system',
        'text',
        'user',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->installEntitySchema('action');
        $this->installConfig('user');
        $this->installEntitySchema('entity_test');
    }
    
    /**
     * @covers \Drupal\Core\Entity\EntityDisplayRepository::getFormDisplay
     */
    public function testEntityGetFromDisplay() : void {
        
        /** @var \Drupal\Core\Entity\EntityDisplayRepositoryInterface $display_repository */
        $display_repository = \Drupal::service('entity_display.repository');
        // Check that EntityDisplayRepositoryInterface::getFormDisplay() returns a
        // fresh object when no configuration entry exists.
        $form_display = $display_repository->getFormDisplay('entity_test', 'entity_test');
        $this->assertTrue($form_display->isNew());
        // Add some components and save the display.
        $form_display->setComponent('component_1', [
            'weight' => 10,
        ])
            ->save();
        // Check that EntityDisplayRepositoryInterface::getFormDisplay() returns the
        // correct object.
        $form_display = $display_repository->getFormDisplay('entity_test', 'entity_test');
        $this->assertFalse($form_display->isNew());
        $this->assertEquals('entity_test.entity_test.default', $form_display->id());
        $this->assertEquals([
            'weight' => 10,
            'settings' => [],
            'third_party_settings' => [],
            'region' => 'content',
        ], $form_display->getComponent('component_1'));
    }
    
    /**
     * Tests the behavior of a field component within an EntityFormDisplay object.
     */
    public function testFieldComponent() : void {
        // Create a field storage and a field.
        $field_name = 'test_field';
        $field_storage = FieldStorageConfig::create([
            'field_name' => $field_name,
            'entity_type' => 'entity_test',
            'type' => 'test_field',
        ]);
        $field_storage->save();
        $field = FieldConfig::create([
            'field_storage' => $field_storage,
            'bundle' => 'entity_test',
        ]);
        $field->save();
        $form_display = EntityFormDisplay::create([
            'targetEntityType' => 'entity_test',
            'bundle' => 'entity_test',
            'mode' => 'default',
        ]);
        // Check that providing no options results in default values being used.
        $form_display->setComponent($field_name);
        $field_type_info = \Drupal::service('plugin.manager.field.field_type')->getDefinition($field_storage->getType());
        $default_widget = $field_type_info['default_widget'];
        $widget_settings = \Drupal::service('plugin.manager.field.widget')->getDefaultSettings($default_widget);
        $expected = [
            'weight' => 3,
            'type' => $default_widget,
            'settings' => $widget_settings,
            'third_party_settings' => [],
        ];
        $this->assertEquals($expected, $form_display->getComponent($field_name));
        // Check that the getWidget() method returns the correct widget plugin.
        $widget = $form_display->getRenderer($field_name);
        $this->assertEquals($default_widget, $widget->getPluginId());
        $this->assertEquals($widget_settings, $widget->getSettings());
        // Check that the widget is statically persisted.
        $this->assertSame($widget, $form_display->getRenderer($field_name));
        // Check that changing the definition creates a new widget.
        $form_display->setComponent($field_name, [
            'type' => 'field_test_multiple',
        ]);
        $renderer = $form_display->getRenderer($field_name);
        $this->assertEquals('test_field_widget', $renderer->getPluginId());
        $this->assertNotSame($widget, $renderer);
        // Check that specifying an unknown widget (e.g. case of a disabled module)
        // gets stored as is in the display, but results in the default widget being
        // used.
        $form_display->setComponent($field_name, [
            'type' => 'unknown_widget',
        ]);
        $options = $form_display->getComponent($field_name);
        $this->assertEquals('unknown_widget', $options['type']);
        $widget = $form_display->getRenderer($field_name);
        $this->assertEquals($default_widget, $widget->getPluginId());
    }
    
    /**
     * Tests the behavior of a field component for a base field.
     */
    public function testBaseFieldComponent() : void {
        $display = EntityFormDisplay::create([
            'targetEntityType' => 'entity_test_base_field_display',
            'bundle' => 'entity_test_base_field_display',
            'mode' => 'default',
        ]);
        // Check that default options are correctly filled in.
        $formatter_settings = \Drupal::service('plugin.manager.field.widget')->getDefaultSettings('text_textfield');
        $expected = [
            'test_no_display' => NULL,
            'test_display_configurable' => [
                'type' => 'text_textfield',
                'settings' => $formatter_settings,
                'third_party_settings' => [],
                'weight' => 10,
                'region' => 'content',
            ],
            'test_display_non_configurable' => [
                'type' => 'text_textfield',
                'settings' => $formatter_settings,
                'third_party_settings' => [],
                'weight' => 11,
                'region' => 'content',
            ],
        ];
        foreach ($expected as $field_name => $options) {
            $this->assertEquals($options, $display->getComponent($field_name));
        }
        // Check that saving the display only writes data for fields whose display
        // is configurable.
        $display->save();
        $config = $this->config('core.entity_form_display.' . $display->id());
        $data = $config->get();
        $this->assertFalse(isset($data['content']['test_no_display']));
        $this->assertFalse(isset($data['hidden']['test_no_display']));
        $this->assertEquals($expected['test_display_configurable'], $data['content']['test_display_configurable']);
        $this->assertFalse(isset($data['content']['test_display_non_configurable']));
        $this->assertFalse(isset($data['hidden']['test_display_non_configurable']));
        // Check that defaults are correctly filled when loading the display.
        $display = EntityFormDisplay::load($display->id());
        foreach ($expected as $field_name => $options) {
            $this->assertEquals($options, $display->getComponent($field_name));
        }
        // Check that data manually written for fields whose display is not
        // configurable is discarded when loading the display.
        $data['content']['test_display_non_configurable'] = $expected['test_display_non_configurable'];
        $data['content']['test_display_non_configurable']['weight']++;
        $config->setData($data)
            ->save();
        $display = EntityFormDisplay::load($display->id());
        foreach ($expected as $field_name => $options) {
            $this->assertEquals($options, $display->getComponent($field_name));
        }
    }
    
    /**
     * Tests deleting field.
     */
    public function testDeleteField() : void {
        $field_name = 'test_field';
        // Create a field storage and a field.
        $field_storage = FieldStorageConfig::create([
            'field_name' => $field_name,
            'entity_type' => 'entity_test',
            'type' => 'test_field',
        ]);
        $field_storage->save();
        $field = FieldConfig::create([
            'field_storage' => $field_storage,
            'bundle' => 'entity_test',
        ]);
        $field->save();
        // Create default and compact entity display.
        EntityFormMode::create([
            'id' => 'entity_test.compact',
            'label' => 'Compact',
            'targetEntityType' => 'entity_test',
        ])->save();
        EntityFormDisplay::create([
            'targetEntityType' => 'entity_test',
            'bundle' => 'entity_test',
            'mode' => 'default',
        ])->setComponent($field_name)
            ->save();
        EntityFormDisplay::create([
            'targetEntityType' => 'entity_test',
            'bundle' => 'entity_test',
            'mode' => 'compact',
        ])->setComponent($field_name)
            ->save();
        
        /** @var \Drupal\Core\Entity\EntityDisplayRepositoryInterface $display_repository */
        $display_repository = \Drupal::service('entity_display.repository');
        // Check the component exists.
        $display = $display_repository->getFormDisplay('entity_test', 'entity_test');
        $this->assertNotEmpty($display->getComponent($field_name));
        $display = $display_repository->getFormDisplay('entity_test', 'entity_test', 'compact');
        $this->assertNotEmpty($display->getComponent($field_name));
        // Delete the field.
        $field->delete();
        // Check that the component has been removed from the entity displays.
        $display = $display_repository->getFormDisplay('entity_test', 'entity_test');
        $this->assertNull($display->getComponent($field_name));
        $display = $display_repository->getFormDisplay('entity_test', 'entity_test', 'compact');
        $this->assertNull($display->getComponent($field_name));
    }
    
    /**
     * Tests \Drupal\Core\Entity\EntityDisplayBase::onDependencyRemoval().
     */
    public function testOnDependencyRemoval() : void {
        $this->enableModules([
            'field_plugins_test',
        ]);
        $field_name = 'test_field';
        // Create a field.
        $field_storage = FieldStorageConfig::create([
            'field_name' => $field_name,
            'entity_type' => 'entity_test',
            'type' => 'text',
        ]);
        $field_storage->save();
        $field = FieldConfig::create([
            'field_storage' => $field_storage,
            'bundle' => 'entity_test',
        ]);
        $field->save();
        EntityFormDisplay::create([
            'targetEntityType' => 'entity_test',
            'bundle' => 'entity_test',
            'mode' => 'default',
        ])->setComponent($field_name, [
            'type' => 'field_plugins_test_text_widget',
        ])
            ->save();
        
        /** @var \Drupal\Core\Entity\EntityDisplayRepositoryInterface $display_repository */
        $display_repository = \Drupal::service('entity_display.repository');
        // Check the component exists and is of the correct type.
        $display = $display_repository->getFormDisplay('entity_test', 'entity_test');
        $this->assertEquals('field_plugins_test_text_widget', $display->getComponent($field_name)['type']);
        // Removing the field_plugins_test module should change the component to use
        // the default widget for test fields.
        \Drupal::service('config.manager')->uninstall('module', 'field_plugins_test');
        $display = $display_repository->getFormDisplay('entity_test', 'entity_test');
        $this->assertEquals('text_textfield', $display->getComponent($field_name)['type']);
        // Removing the text module should remove the field from the form display.
        \Drupal::service('config.manager')->uninstall('module', 'text');
        $display = $display_repository->getFormDisplay('entity_test', 'entity_test');
        $this->assertNull($display->getComponent($field_name));
    }
    
    /**
     * Tests the serialization and unserialization of the class.
     */
    public function testSerialization() : void {
        
        /** @var \Drupal\Core\Entity\EntityDisplayRepositoryInterface $display_repository */
        $display_repository = \Drupal::service('entity_display.repository');
        $form_display = $display_repository->getFormDisplay('entity_test', 'entity_test');
        // Make sure the langcode base field is visible in the original form
        // display.
        $this->assertNotEmpty($form_display->getComponent('langcode'));
        // Remove the langcode.
        $form_display->removeComponent('langcode');
        $unserialized = unserialize(serialize($form_display));
        // Verify that components are retained upon unserialization.
        $this->assertEquals($form_display->getComponents(), $unserialized->getComponents());
    }

}