deleteField example

  public function testCRUDFields() {
    $this->manageFieldsPage();
    $this->createField();
    $this->updateField();
    $this->addExistingField();
    $this->cardinalitySettings();
    $this->fieldListAdminPage();
    $this->deleteField();
    $this->addPersistentFieldStorage();
  }

  /** * Tests the manage fields page. * * @param string $type * (optional) The name of a content type. */
  public function manageFieldsPage($type = '') {
    $type = empty($type) ? $this->contentType : $type;