--- /dev/null
+<?php
+
+namespace Drupal\Tests\content_translation\Functional;
+
+use Drupal\Core\Url;
+use Drupal\language\Entity\ConfigurableLanguage;
+
+/**
+ * Tests the untranslatable fields behaviors.
+ *
+ * @group content_translation
+ */
+class ContentTranslationUntranslatableFieldsTest extends ContentTranslationPendingRevisionTestBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setUp() {
+ parent::setUp();
+
+ // Configure one field as untranslatable.
+ $this->drupalLogin($this->administrator);
+ $edit = [
+ 'settings[' . $this->entityTypeId . '][' . $this->bundle . '][fields][' . $this->fieldName . ']' => 0,
+ ];
+ $this->drupalPostForm('admin/config/regional/content-language', $edit, 'Save configuration');
+
+ /** @var \Drupal\Core\Entity\EntityFieldManagerInterface $entity_field_manager */
+ $entity_field_manager = $this->container->get('entity_field.manager');
+ $entity_field_manager->clearCachedFieldDefinitions();
+ $definitions = $entity_field_manager->getFieldDefinitions($this->entityTypeId, $this->bundle);
+ $this->assertFalse($definitions[$this->fieldName]->isTranslatable());
+ }
+
+ /**
+ * Tests that hiding untranslatable field widgets works correctly.
+ */
+ public function testHiddenWidgets() {
+ /** @var \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager */
+ $entity_type_manager = $this->container->get('entity_type.manager');
+ $id = $this->createEntity(['title' => $this->randomString()], 'en');
+ /** @var \Drupal\Core\Entity\ContentEntityInterface $entity */
+ $entity = $entity_type_manager
+ ->getStorage($this->entityTypeId)
+ ->load($id);
+
+ // Check that the untranslatable field widget is displayed on the edit form
+ // and no translatability clue is displayed yet.
+ $en_edit_url = $entity->toUrl('edit-form');
+ $this->drupalGet($en_edit_url);
+ $field_xpath = '//input[@name="' . $this->fieldName . '[0][value]"]';
+ $this->assertNotEmpty($this->xpath($field_xpath));
+ $clue_xpath = '//label[@for="edit-' . strtr($this->fieldName, '_', '-') . '-0-value"]/span[text()="(all languages)"]';
+ $this->assertEmpty($this->xpath($clue_xpath));
+
+ // Add a translation and check that the untranslatable field widget is
+ // displayed on the translation and edit forms along with translatability
+ // clues.
+ $add_url = Url::fromRoute("entity.{$this->entityTypeId}.content_translation_add", [
+ $entity->getEntityTypeId() => $entity->id(),
+ 'source' => 'en',
+ 'target' => 'it'
+ ]);
+ $this->drupalGet($add_url);
+ $this->assertNotEmpty($this->xpath($field_xpath));
+ $this->assertNotEmpty($this->xpath($clue_xpath));
+ $this->drupalPostForm(NULL, [], 'Save');
+
+ // Check that the widget is displayed along with its clue in the edit form
+ // for both languages.
+ $this->drupalGet($en_edit_url);
+ $this->assertNotEmpty($this->xpath($field_xpath));
+ $this->assertNotEmpty($this->xpath($clue_xpath));
+ $it_edit_url = $entity->toUrl('edit-form', ['language' => ConfigurableLanguage::load('it')]);
+ $this->drupalGet($it_edit_url);
+ $this->assertNotEmpty($this->xpath($field_xpath));
+ $this->assertNotEmpty($this->xpath($clue_xpath));
+
+ // Configure untranslatable field widgets to be hidden on non-default
+ // language edit forms.
+ $settings_key = 'settings[' . $this->entityTypeId . '][' . $this->bundle . '][settings][content_translation][untranslatable_fields_hide]';
+ $settings_url = 'admin/config/regional/content-language';
+ $this->drupalPostForm($settings_url, [$settings_key => 1], 'Save configuration');
+
+ // Verify that the widget is displayed in the default language edit form,
+ // but no clue is displayed.
+ $this->drupalGet($en_edit_url);
+ $field_xpath = '//input[@name="' . $this->fieldName . '[0][value]"]';
+ $this->assertNotEmpty($this->xpath($field_xpath));
+ $this->assertEmpty($this->xpath($clue_xpath));
+
+ // Verify no widget is displayed on the non-default language edit form.
+ $this->drupalGet($it_edit_url);
+ $this->assertEmpty($this->xpath($field_xpath));
+ $this->assertEmpty($this->xpath($clue_xpath));
+
+ // Verify a warning is displayed.
+ $this->assertSession()->pageTextContains('Fields that apply to all languages are hidden to avoid conflicting changes.');
+ $edit_path = $entity->toUrl('edit-form')->toString();
+ $link_xpath = '//a[@href=:edit_path and text()="Edit them on the original language form"]';
+ $elements = $this->xpath($link_xpath, [':edit_path' => $edit_path]);
+ $this->assertNotEmpty($elements);
+
+ // Configure untranslatable field widgets to be displayed on non-default
+ // language edit forms.
+ $this->drupalPostForm($settings_url, [$settings_key => 0], 'Save configuration');
+
+ // Check that the widget is displayed along with its clue in the edit form
+ // for both languages.
+ $this->drupalGet($en_edit_url);
+ $this->assertNotEmpty($this->xpath($field_xpath));
+ $this->assertNotEmpty($this->xpath($clue_xpath));
+ $this->drupalGet($it_edit_url);
+ $this->assertNotEmpty($this->xpath($field_xpath));
+ $this->assertNotEmpty($this->xpath($clue_xpath));
+
+ // Enable content moderation and verify that widgets are hidden despite them
+ // being configured to be displayed.
+ $this->enableContentModeration();
+ $this->drupalGet($it_edit_url);
+ $this->assertEmpty($this->xpath($field_xpath));
+ $this->assertEmpty($this->xpath($clue_xpath));
+
+ // Verify a warning is displayed.
+ $this->assertSession()->pageTextContains('Fields that apply to all languages are hidden to avoid conflicting changes.');
+ $elements = $this->xpath($link_xpath, [':edit_path' => $edit_path]);
+ $this->assertNotEmpty($elements);
+
+ // Verify that checkboxes on the language content settings page are checked
+ // and disabled for moderated bundles.
+ $this->drupalGet($settings_url);
+ $input_xpath = '//input[@name="settings[' . $this->entityTypeId . '][' . $this->bundle . '][settings][content_translation][untranslatable_fields_hide]" and @value=1 and @disabled="disabled"]';
+ $elements = $this->xpath($input_xpath);
+ $this->assertNotEmpty($elements);
+ $this->drupalPostForm(NULL, [$settings_key => 0], 'Save configuration');
+ $elements = $this->xpath($input_xpath);
+ $this->assertNotEmpty($elements);
+ }
+
+}