Code from proxy not tested?

I found out that the proxy raised some E_NOTICE on my laptop that didn't appear while running make phpcheck - so I had a quick look at the unit test files, and I didn't see any part covering the proxy code. Is it done somewhere?

( ! ) Notice: Undefined variable: CONFIG in /var/www/hackit.local/proxy/index.php on line 301
Call Stack
# Time Memory Function Location
1 0.0009 418216 {main}( ) ../index.php:0

( ! ) Notice: Undefined variable: CONFIG in /var/www/hackit.local/proxy/index.php on line 309
Call Stack
# Time Memory Function Location
1 0.0009 418216 {main}( ) ../index.php:0

( ! ) Notice: Undefined variable: exception in /var/www/hackit.local/proxy/functions.php on line 76
Call Stack
# Time Memory Function Location
1 0.0009 418216 {main}( ) ../index.php:0
2 0.0136 1718856 curl_exec ( ) ../index.php:448
3 0.6792 1719408 readHeader( ) ../functions.php:0

( ! ) Notice: Undefined variable: status in /var/www/hackit.local/proxy/functions.php on line 84
Call Stack
# Time Memory Function Location
1 0.0009 418216 {main}( ) ../index.php:0
2 0.0136 1718856 curl_exec ( ) ../index.php:448
3 0.6797 1719952 readHeader( ) ../functions.php:0