pp_cms/webApp/api/fixtures/UserFixture.php

<?php
/**
 * Author: lf
 * Blog: https://blog.feehi.com
 * Email: job@feehi.com
 * Created at: 2019-07-28 22:45
 */
namespace api\fixtures;

use yii\test\ActiveFixture;

class UserFixture extends ActiveFixture
{
    public $modelClass = 'api\models\User';
}