Install a test site – 100% copy of the current one

The production blog is at: http://aaaaa.com
The test blog needs to be at: http://xxxx.com/testsite

I have:
-copied the files from http://aaaaa.com to http://xxxx.com/testsite
-exported the SQL from http://aaaaa.com
-created a new database from http://xxxx.com/testsite
-replaced all http://aaaaa.com with http://xxxx.com/testsite in the SQL
-imported the exported database to the new one via mysql -h mysqlhostserver -u mysqlusername -p databasename < blog.bak.sql

Still doesn’t work. In the main page I see Page not found! Please browse our sitemap.

When I try to go to http://xxxx.com/testsite/wp-admin I get redirected to http://aaaaa.com/wp-admin

What can I do?