fieldUIAddExistingField example

// Check "Re-use existing field" appears.     $this->drupalGet('admin/structure/types/manage/page/fields');
    $this->assertSession()->pageTextContains('Re-use an existing field');
    $this->clickLink('Re-use an existing field');
    // Check that fields of other entity types (here, the 'comment_body' field)     // do not show up in the "Re-use existing field" list.     $this->assertSession()->elementNotExists('css', '.js-reuse-table [data-field-id="comment_body"]');
    // Validate the FALSE assertion above by also testing a valid one.     $this->assertSession()->elementExists('css', ".js-reuse-table [data-field-id='{$this->fieldName}']");
    $new_label = $this->fieldLabel . '_2';
    // Add a new field based on an existing field.     $this->fieldUIAddExistingField("admin/structure/types/manage/page", $this->fieldName, $new_label);
  }

  /** * Tests the cardinality settings of a field. * * We do not test if the number can be submitted with anything else than a * numeric value. That is tested already in FormTest::testNumber(). */
  public function cardinalitySettings() {
    $field_edit_path = 'admin/structure/types/manage/article/fields/node.article.body/storage';

    

// Create a new field.     $bundle_path1 = 'admin/structure/types/manage/' . $type_name1;
    $this->fieldUIAddNewField($bundle_path1, $field_name_input, $field_label);

    // Create an additional node type.     $type_name2 = strtolower($this->randomMachineName(8)) . '_test';
    $type2 = $this->drupalCreateContentType(['name' => $type_name2, 'type' => $type_name2]);
    $type_name2 = $type2->id();

    // Add a field to the second node type.     $bundle_path2 = 'admin/structure/types/manage/' . $type_name2;
    $this->fieldUIAddExistingField($bundle_path2, $field_name, $field_label);

    \Drupal::service('module_installer')->install(['views']);
    ViewTestData::createTestViews(static::class, ['field_test_views']);

    $view = View::load('test_view_field_delete');
    $this->assertNotNull($view);
    $this->assertTrue($view->status());
    // Test that the View depends on the field.     $dependencies = $view->getDependencies() + ['config' => []];
    $this->assertContains("field.storage.node.$field_name", $dependencies['config']);