class ArbitraryRebuildTest

class ArbitraryRebuildTest extends BrowserTestBase {
  
  /**
   * Modules to enable.
   *
   * @var array
   */
  protected static $modules = [
    'text',
    'form_test',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    // Auto-create a field for testing.
    FieldStorageConfig::create([
      'entity_type' => 'user',
      'field_name' => 'test_multiple',
      'type' => 'text',
      'cardinality' => -1,
      'translatable' => FALSE,
    ])->save();
    FieldConfig::create([
      'entity_type' => 'user',
      'field_name' => 'test_multiple',
      'bundle' => 'user',
      'label' => 'Test a multiple valued field',
    ])->save();
    \Drupal::service('entity_display.repository')->getFormDisplay('user', 'user', 'register')
      ->setComponent('test_multiple', [
      'type' => 'text_textfield',
      'weight' => 0,
    ])
      ->save();
  }
  
  /**
   * Tests a basic rebuild with the user registration form.
   */
  public function testUserRegistrationRebuild() {
    $edit = [
      'name' => 'foo',
      'mail' => 'bar@example.com',
    ];
    $this->drupalGet('user/register');
    $this->submitForm($edit, 'Rebuild');
    $this->assertSession()
      ->pageTextContains('Form rebuilt.');
    $this->assertSession()
      ->fieldValueEquals('name', 'foo');
    $this->assertSession()
      ->fieldValueEquals('mail', 'bar@example.com');
  }
  
  /**
   * Tests a rebuild caused by a multiple value field.
   */
  public function testUserRegistrationMultipleField() {
    $edit = [
      'name' => 'foo',
      'mail' => 'bar@example.com',
    ];
    $this->drupalGet('user/register');
    $this->submitForm($edit, 'Add another item');
    $this->assertSession()
      ->pageTextContains('Test a multiple valued field');
    $this->assertSession()
      ->fieldValueEquals('name', 'foo');
    $this->assertSession()
      ->fieldValueEquals('mail', 'bar@example.com');
  }

}