gnu: Add system test for the rpcbind-daemon service.

* gnu/tests/nfs.scm: New file.
* gnu/local.mk: Add it.

gnu/local.mk

@@ -451,6 +451,7 @@ GNU_SYSTEM_MODULES =				\
 						\
   %D%/tests.scm					\
   %D%/tests/base.scm				\
+  %D%/tests/nfs.scm				\
   %D%/tests/install.scm				\
   %D%/tests/mail.scm				\
   %D%/tests/ssh.scm

gnu/tests/nfs.scm

@@ -0,0 +1,131 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2016 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2016 John Darrington <jmd@gnu.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu tests nfs)
+  #:use-module (gnu tests)
+  #:use-module (gnu system)
+  #:use-module (gnu system grub)
+  #:use-module (gnu system file-systems)
+  #:use-module (gnu system shadow)
+  #:use-module (gnu system vm)
+  #:use-module (gnu services)
+  #:use-module (gnu services base)
+  #:use-module (gnu services nfs)
+  #:use-module (gnu services networking)
+  #:use-module (gnu packages onc-rpc)
+  #:use-module (guix gexp)
+  #:use-module (guix store)
+  #:use-module (guix monads)
+  #:export (%test-nfs))
+
+(define %base-os
+  (operating-system
+    (host-name "olitupmok")
+    (timezone "Europe/Berlin")
+    (locale "en_US.UTF-8")
+
+    (bootloader (grub-configuration (device "/dev/sdX")))
+    (file-systems %base-file-systems)
+    (users %base-user-accounts)
+    (packages (cons*
+               rpcbind
+               %base-packages))
+    (services (cons*
+               (service rpcbind-service-type
+                        (rpcbind-configuration))
+               (dhcp-client-service)
+               %base-services))))
+
+(define (run-nfs-test name socket)
+  "Run a test of an OS running RPC-SERVICE, which should create SOCKET."
+  (mlet* %store-monad ((os ->   (marionette-operating-system
+                                 %base-os
+                                 #:imported-modules '((gnu services herd)
+                                                      (guix combinators))))
+                       (command (system-qemu-image/shared-store-script
+                                 os #:graphic? #f)))
+    (define test
+      (with-imported-modules '((gnu build marionette))
+        #~(begin
+            (use-modules (gnu build marionette)
+                         (srfi srfi-64))
+
+            (define marionette
+              (make-marionette (list #$command)))
+
+            (define (wait-for-socket file)
+              ;; Wait until SOCKET  exists in the guest
+              (marionette-eval
+               `(let loop ((i 10))
+                  (cond ((and (file-exists? ,file)
+                              (eq? 'socket (stat:type (stat ,file))))
+                         #t)
+                        ((> i 0)
+                         (sleep 1)
+                         (loop (- i 1)))
+                        (else
+                         (error "Socket didn't show up: " ,file))))
+               marionette))
+
+            (mkdir #$output)
+            (chdir #$output)
+
+            (test-begin "rpc-daemon")
+
+            ;; Wait for the rpcbind daemon to be up and running.
+            (test-eq "RPC service running"
+              'running!
+              (marionette-eval
+               '(begin
+                  (use-modules (gnu services herd))
+                  (start-service 'rpcbind-daemon)
+                  'running!)
+               marionette))
+
+            ;; Check the socket file and that the service is still running.
+            (test-assert "RPC socket exists"
+              (and
+                (wait-for-socket #$socket)
+                (marionette-eval
+                 '(begin
+                    (use-modules (gnu services herd)
+                                 (srfi srfi-1))
+
+                    (live-service-running
+                     (find (lambda (live)
+                             (memq 'rpcbind-daemon
+                                   (live-service-provision live)))
+                           (current-services))))
+                 marionette)))
+
+            (test-assert "Probe RPC daemon"
+              (marionette-eval
+               '(zero? (system* "rpcinfo" "-p"))
+               marionette))
+
+            (test-end)
+            (exit (= (test-runner-fail-count (test-runner-current)) 0)))))
+
+    (gexp->derivation name test)))
+
+(define %test-nfs
+  (system-test
+   (name "nfs")
+   (description "Test some things related to NFS.")
+   (value (run-nfs-test name "/var/run/rpcbind.sock"))))