1. Go to this page and download the library: Download 10up/wp-codeception library. Choose the download type require.
2. Extract the ZIP file and open the index.php.
3. Add this code to the index.php.
<?php
require_once('vendor/autoload.php');
/* Start to develop here. Best regards https://php-download.com/ */
10up / wp-codeception example snippets
// Make sure you've added your site URL to acceptance.suite.yml
// @see http://codeception.com/docs/03-AcceptanceTests#PHP-Browser
$I = new AcceptanceTester( $scenario );
$I->wantTo( 'Ensure WordPress Login Works' );
// Let's start on the login page
$I->amOnPage( wp_login_url() );
// Populate the login form's user id field
$I->fillField( 'input#user_login', 'YourUsername' );
// Popupate the login form's password field
$I->fillField( 'input#user_pass', 'YourPassword' );
// Submit the login form
$I->click( 'Log In' );
// Validate the successful loading of the Dashboard
$I->see( 'Dashboard' );