backend = new Sabre_CardDAV_Backend_Mock(); $principalBackend = new Sabre_DAVACL_MockPrincipalBackend(); $tree = array( new Sabre_CardDAV_AddressBookRoot($principalBackend, $this->backend), new Sabre_DAVACL_PrincipalCollection($principalBackend) ); $this->plugin = new Sabre_CardDAV_Plugin(); $this->plugin->directories = array('directory'); $this->server = new Sabre_DAV_Server($tree); $this->server->addPlugin($this->plugin); $this->server->debugExceptions = true; } }