public function get_dummy_user($meta_key = array('Two_Factor_Dummy' => 'Two_Factor_Dummy'))
 {
     $user = new WP_User($this->factory->user->create());
     $this->old_user_id = get_current_user_id();
     wp_set_current_user($user->ID);
     $key = '_nonce_user_two_factor_options';
     $_POST[$key] = wp_create_nonce('user_two_factor_options');
     $_REQUEST[$key] = $_POST[$key];
     $_POST[Two_Factor_Core::ENABLED_PROVIDERS_USER_META_KEY] = $meta_key;
     Two_Factor_Core::user_two_factor_options_update($user->ID);
     return $user;
 }