Live site and a test site

Hello everyone:
I just got a project where I have to do some testing a site. I don’t want to mess with the live site so I copied everything to my computer and create a db with a different name.
I change the wp-config.php files so they match the db

// ** MySQL settings - You can get this info from your web host ** //
/** The name of the database for WordPress */
define('DB_NAME', 'noplace1');

/** MySQL database username */
define('DB_USER', 'nomad');

/** MySQL database password */
define('DB_PASSWORD', 'nomad');

/** MySQL hostname */
define('DB_HOST', 'localhost');

/** Database Charset to use in creating database tables. */
define('DB_CHARSET', 'utf8');

/** The Database Collate type. Don't change this if in doubt. */
define('DB_COLLATE', '');

Next I made a bookmark so when I clicked on it it would open the Login section.
When I put in the username and password and click Log In it will take me to the Live Site.
I’m trying to find out where the redirect section (if thats the name of it) is at what file do I find it at. Any help would be great

Many thanks
damon