FieldDefaultValueCallbackTest.php

<?php

declare (strict_types=1);
namespace Drupal\Tests\field\Functional;

use Drupal\field\Entity\FieldConfig;
use Drupal\field\Entity\FieldStorageConfig;
use Drupal\Tests\BrowserTestBase;

/**
 * Tests the default value callback.
 *
 * @group field
 */
class FieldDefaultValueCallbackTest extends BrowserTestBase {
  
  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'node',
    'field_test',
    'field_ui',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';
  
  /**
   * The field name.
   *
   * @var string
   */
  private $fieldName;
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $this->fieldName = 'field_test';
    // Create Article node types.
    if ($this->profile != 'standard') {
      $this->drupalCreateContentType([
        'type' => 'article',
        'name' => 'Article',
      ]);
    }
    $this->drupalLogin($this->drupalCreateUser([
      'administer node fields',
    ]));
  }
  
  /**
   * Tests the default value callback functionality for fields.
   */
  public function testDefaultValueCallbackForm() : void {
    // Create a field and storage for checking.
    FieldStorageConfig::create([
      'field_name' => $this->fieldName,
      'entity_type' => 'node',
      'type' => 'text',
    ])
      ->save();
    /** @var \Drupal\field\Entity\FieldConfig $field_config */
    $field_config = FieldConfig::create([
      'entity_type' => 'node',
      'field_name' => $this->fieldName,
      'bundle' => 'article',
    ]);
    $field_config->save();
    // Check that the default field form is visible when no callback is set.
    $this->drupalGet('/admin/structure/types/manage/article/fields/node.article.field_test');
    $this->assertSession()
      ->fieldValueEquals('default_value_input[field_test][0][value]', '');
    // Set a different field value, it should be on the field.
    $default_value = $this->randomString();
    $field_config->setDefaultValue([
      [
        'value' => $default_value,
      ],
    ])
      ->save();
    $this->drupalGet('/admin/structure/types/manage/article/fields/node.article.field_test');
    $this->assertSession()
      ->fieldValueEquals('default_value_input[field_test][0][value]', $default_value);
    // Set a different field value to the field directly, instead of an array.
    $default_value = $this->randomString();
    $field_config->setDefaultValue($default_value)
      ->save();
    $this->drupalGet('/admin/structure/types/manage/article/fields/node.article.field_test');
    $this->assertSession()
      ->fieldValueEquals('default_value_input[field_test][0][value]', $default_value);
    // Set a default value callback instead, and the default field form should
    // not be visible.
    $field_config->setDefaultValueCallback('\\Drupal\\field_test\\FieldDefaultValueCallbackProvider::calculateDefaultValue')
      ->save();
    $this->drupalGet('/admin/structure/types/manage/article/fields/node.article.field_test');
    $this->assertSession()
      ->fieldNotExists('default_value_input[field_test][0][value]');
  }

}