Queenabby/tests/codeception/common/templates/fixtures/user.php

<?php
/**
 * @var \Faker\Generator
 * @var $index           integer
 */
$security = Yii::$app->getSecurity();

return [
    'username'             => $faker->userName,
    'email'                => $faker->email,
    'auth_key'             => $security->generateRandomString(),
    'password_hash'        => $security->generatePasswordHash('password_'.$index),
    'password_reset_token' => $security->generateRandomString().'_'.time(),
    'created_at'           => time(),
    'updated_at'           => time(),
];