--- /dev/null
+<?php
+
+namespace Drupal\Tests\field\Functional\EntityReference;
+
+use Drupal\Component\Utility\SafeMarkup;
+use Drupal\config\Tests\AssertConfigEntityImportTrait;
+use Drupal\entity_test\Entity\EntityTest;
+use Drupal\field\Entity\FieldConfig;
+use Drupal\Tests\BrowserTestBase;
+use Drupal\field\Tests\EntityReference\EntityReferenceTestTrait;
+
+/**
+ * Tests various Entity reference UI components.
+ *
+ * @group entity_reference
+ */
+class EntityReferenceIntegrationTest extends BrowserTestBase {
+
+ use AssertConfigEntityImportTrait;
+ use EntityReferenceTestTrait;
+
+ /**
+ * The entity type used in this test.
+ *
+ * @var string
+ */
+ protected $entityType = 'entity_test';
+
+ /**
+ * The bundle used in this test.
+ *
+ * @var string
+ */
+ protected $bundle = 'entity_test';
+
+ /**
+ * The name of the field used in this test.
+ *
+ * @var string
+ */
+ protected $fieldName;
+
+ /**
+ * Modules to install.
+ *
+ * @var array
+ */
+ public static $modules = ['config_test', 'entity_test', 'field_ui'];
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setUp() {
+ parent::setUp();
+
+ // Create a test user.
+ $web_user = $this->drupalCreateUser(['administer entity_test content', 'administer entity_test fields', 'view test entity']);
+ $this->drupalLogin($web_user);
+ }
+
+ /**
+ * Tests the entity reference field with all its supported field widgets.
+ */
+ public function testSupportedEntityTypesAndWidgets() {
+ foreach ($this->getTestEntities() as $key => $referenced_entities) {
+ $this->fieldName = 'field_test_' . $referenced_entities[0]->getEntityTypeId();
+
+ // Create an Entity reference field.
+ $this->createEntityReferenceField($this->entityType, $this->bundle, $this->fieldName, $this->fieldName, $referenced_entities[0]->getEntityTypeId(), 'default', [], 2);
+
+ // Test the default 'entity_reference_autocomplete' widget.
+ entity_get_form_display($this->entityType, $this->bundle, 'default')->setComponent($this->fieldName)->save();
+
+ $entity_name = $this->randomMachineName();
+ $edit = [
+ 'name[0][value]' => $entity_name,
+ $this->fieldName . '[0][target_id]' => $referenced_entities[0]->label() . ' (' . $referenced_entities[0]->id() . ')',
+ // Test an input of the entity label without a ' (entity_id)' suffix.
+ $this->fieldName . '[1][target_id]' => $referenced_entities[1]->label(),
+ ];
+ $this->drupalPostForm($this->entityType . '/add', $edit, t('Save'));
+ $this->assertFieldValues($entity_name, $referenced_entities);
+
+ // Try to post the form again with no modification and check if the field
+ // values remain the same.
+ /** @var \Drupal\Core\Entity\EntityStorageInterface $storage */
+ $storage = $this->container->get('entity_type.manager')->getStorage($this->entityType);
+ $entity = current($storage->loadByProperties(['name' => $entity_name]));
+ $this->drupalGet($this->entityType . '/manage/' . $entity->id() . '/edit');
+ $this->assertFieldByName($this->fieldName . '[0][target_id]', $referenced_entities[0]->label() . ' (' . $referenced_entities[0]->id() . ')');
+ $this->assertFieldByName($this->fieldName . '[1][target_id]', $referenced_entities[1]->label() . ' (' . $referenced_entities[1]->id() . ')');
+
+ $this->drupalPostForm(NULL, [], t('Save'));
+ $this->assertFieldValues($entity_name, $referenced_entities);
+
+ // Test the 'entity_reference_autocomplete_tags' widget.
+ entity_get_form_display($this->entityType, $this->bundle, 'default')->setComponent($this->fieldName, [
+ 'type' => 'entity_reference_autocomplete_tags',
+ ])->save();
+
+ $entity_name = $this->randomMachineName();
+ $target_id = $referenced_entities[0]->label() . ' (' . $referenced_entities[0]->id() . ')';
+ // Test an input of the entity label without a ' (entity_id)' suffix.
+ $target_id .= ', ' . $referenced_entities[1]->label();
+ $edit = [
+ 'name[0][value]' => $entity_name,
+ $this->fieldName . '[target_id]' => $target_id,
+ ];
+ $this->drupalPostForm($this->entityType . '/add', $edit, t('Save'));
+ $this->assertFieldValues($entity_name, $referenced_entities);
+
+ // Try to post the form again with no modification and check if the field
+ // values remain the same.
+ $entity = current($storage->loadByProperties(['name' => $entity_name]));
+ $this->drupalGet($this->entityType . '/manage/' . $entity->id() . '/edit');
+ $this->assertFieldByName($this->fieldName . '[target_id]', $target_id . ' (' . $referenced_entities[1]->id() . ')');
+
+ $this->drupalPostForm(NULL, [], t('Save'));
+ $this->assertFieldValues($entity_name, $referenced_entities);
+
+ // Test all the other widgets supported by the entity reference field.
+ // Since we don't know the form structure for these widgets, just test
+ // that editing and saving an already created entity works.
+ $exclude = ['entity_reference_autocomplete', 'entity_reference_autocomplete_tags'];
+ $entity = current($storage->loadByProperties(['name' => $entity_name]));
+ $supported_widgets = \Drupal::service('plugin.manager.field.widget')->getOptions('entity_reference');
+ $supported_widget_types = array_diff(array_keys($supported_widgets), $exclude);
+
+ foreach ($supported_widget_types as $widget_type) {
+ entity_get_form_display($this->entityType, $this->bundle, 'default')->setComponent($this->fieldName, [
+ 'type' => $widget_type,
+ ])->save();
+
+ $this->drupalPostForm($this->entityType . '/manage/' . $entity->id() . '/edit', [], t('Save'));
+ $this->assertFieldValues($entity_name, $referenced_entities);
+ }
+
+ // Reset to the default 'entity_reference_autocomplete' widget.
+ entity_get_form_display($this->entityType, $this->bundle, 'default')->setComponent($this->fieldName)->save();
+
+ // Set first entity as the default_value.
+ $field_edit = [
+ 'default_value_input[' . $this->fieldName . '][0][target_id]' => $referenced_entities[0]->label() . ' (' . $referenced_entities[0]->id() . ')',
+ ];
+ if ($key == 'content') {
+ $field_edit['settings[handler_settings][target_bundles][' . $referenced_entities[0]->getEntityTypeId() . ']'] = TRUE;
+ }
+ $this->drupalPostForm($this->entityType . '/structure/' . $this->bundle . '/fields/' . $this->entityType . '.' . $this->bundle . '.' . $this->fieldName, $field_edit, t('Save settings'));
+ // Ensure the configuration has the expected dependency on the entity that
+ // is being used a default value.
+ $field = FieldConfig::loadByName($this->entityType, $this->bundle, $this->fieldName);
+ $this->assertTrue(in_array($referenced_entities[0]->getConfigDependencyName(), $field->getDependencies()[$key]), SafeMarkup::format('Expected @type dependency @name found', ['@type' => $key, '@name' => $referenced_entities[0]->getConfigDependencyName()]));
+ // Ensure that the field can be imported without change even after the
+ // default value deleted.
+ $referenced_entities[0]->delete();
+ // Reload the field since deleting the default value can change the field.
+ \Drupal::entityManager()->getStorage($field->getEntityTypeId())->resetCache([$field->id()]);
+ $field = FieldConfig::loadByName($this->entityType, $this->bundle, $this->fieldName);
+ $this->assertConfigEntityImport($field);
+
+ // Once the default value has been removed after saving the dependency
+ // should be removed.
+ $field = FieldConfig::loadByName($this->entityType, $this->bundle, $this->fieldName);
+ $field->save();
+ $dependencies = $field->getDependencies();
+ $this->assertFalse(isset($dependencies[$key]) && in_array($referenced_entities[0]->getConfigDependencyName(), $dependencies[$key]), SafeMarkup::format('@type dependency @name does not exist.', ['@type' => $key, '@name' => $referenced_entities[0]->getConfigDependencyName()]));
+ }
+ }
+
+ /**
+ * Asserts that the reference field values are correct.
+ *
+ * @param string $entity_name
+ * The name of the test entity.
+ * @param \Drupal\Core\Entity\EntityInterface[] $referenced_entities
+ * An array of referenced entities.
+ */
+ protected function assertFieldValues($entity_name, $referenced_entities) {
+ $entity = current($this->container->get('entity_type.manager')->getStorage(
+ $this->entityType)->loadByProperties(['name' => $entity_name]));
+
+ $this->assertTrue($entity, format_string('%entity_type: Entity found in the database.', ['%entity_type' => $this->entityType]));
+
+ $this->assertEqual($entity->{$this->fieldName}->target_id, $referenced_entities[0]->id());
+ $this->assertEqual($entity->{$this->fieldName}->entity->id(), $referenced_entities[0]->id());
+ $this->assertEqual($entity->{$this->fieldName}->entity->label(), $referenced_entities[0]->label());
+
+ $this->assertEqual($entity->{$this->fieldName}[1]->target_id, $referenced_entities[1]->id());
+ $this->assertEqual($entity->{$this->fieldName}[1]->entity->id(), $referenced_entities[1]->id());
+ $this->assertEqual($entity->{$this->fieldName}[1]->entity->label(), $referenced_entities[1]->label());
+ }
+
+ /**
+ * Creates two content and two config test entities.
+ *
+ * @return array
+ * An array of entity objects.
+ */
+ protected function getTestEntities() {
+ $config_entity_1 = entity_create('config_test', ['id' => $this->randomMachineName(), 'label' => $this->randomMachineName()]);
+ $config_entity_1->save();
+ $config_entity_2 = entity_create('config_test', ['id' => $this->randomMachineName(), 'label' => $this->randomMachineName()]);
+ $config_entity_2->save();
+
+ $content_entity_1 = EntityTest::create(['name' => $this->randomMachineName()]);
+ $content_entity_1->save();
+ $content_entity_2 = EntityTest::create(['name' => $this->randomMachineName()]);
+ $content_entity_2->save();
+
+ return [
+ 'config' => [
+ $config_entity_1,
+ $config_entity_2,
+ ],
+ 'content' => [
+ $content_entity_1,
+ $content_entity_2,
+ ],
+ ];
+ }
+
+}