[dev] Kolab unit tests fatal out if Net_LDAP2_Util isn't installed

[Chuck Hagenbuch]

Can this be mocked, or at least skipped if the dependencies aren't available?

Fatal error: Class 'Net_LDAP2_Util' not found in  
/Library/WebServer/Documents/horde/horde/framework/Kolab_Server/lib/Horde/Kolab/Server/Structure/Ldap.php on line  
102

Thanks!

-chuck