[wip] Add automation support for proxy settings

setup/so-functions

@@ -1835,6 +1835,10 @@ proxy_validate() {
 
 	if [[ $ret != 0 ]]; then
 		error "Could not reach $test_url using proxy $so_proxy"
+		if [[ -n $TESTING ]]; then
+			error "Exiting setup"
+			kill -SIGINT "$(ps --pid $$ -oppid=)"; exit 1
+		fi
 	fi
 	return $ret
 }