tests: Add 'prosody-service-type' test.

* gnu/tests/messaging.scm: New file.
* gnu/services/messaging.scm: New exported procedure.
  (<shepherd-service>)[provision]: Add 'xmpp-daemon'.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu/local.mk

@@ -459,6 +459,7 @@ GNU_SYSTEM_MODULES =				\
   %D%/tests/nfs.scm				\
   %D%/tests/install.scm				\
   %D%/tests/mail.scm				\
+  %D%/tests/messaging.scm			\
   %D%/tests/ssh.scm				\
   %D%/tests/web.scm
 

gnu/services/messaging.scm

@@ -40,7 +40,8 @@ (define-module (gnu services messaging)
             mod-muc-configuration
             ssl-configuration
 
-            %default-modules-enabled))
+            %default-modules-enabled
+            prosody-configuration-pidfile))
 
 ;;; Commentary:
 ;;;
@@ -592,7 +593,7 @@ (define (prosody-shepherd-service config)
                                   (zero? (system* #$prosodyctl-bin #$@args))))))
     (list (shepherd-service
            (documentation "Run the Prosody XMPP server")
-           (provision '(prosody))
+           (provision '(prosody xmpp-daemon))
            (requirement '(networking syslogd user-processes))
            (start (prosodyctl-action "start"))
            (stop (prosodyctl-action "stop"))))))

gnu/tests/messaging.scm

@@ -0,0 +1,194 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2017 Clément Lassieur <clement@lassieur.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 messaging)
+  #: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 messaging)
+  #:use-module (gnu services networking)
+  #:use-module (gnu packages messaging)
+  #:use-module (guix gexp)
+  #:use-module (guix store)
+  #:use-module (guix monads)
+  #:export (%test-prosody))
+
+(define %base-os
+  (operating-system
+    (host-name "komputilo")
+    (timezone "Europe/Berlin")
+    (locale "en_US.UTF-8")
+
+    (bootloader (grub-configuration (device "/dev/sdX")))
+    (file-systems %base-file-systems)
+    (firmware '())
+    (users %base-user-accounts)
+    (services (cons (dhcp-client-service)
+                    %base-services))))
+
+(define (os-with-service service)
+  "Return a test operating system that runs SERVICE."
+  (operating-system
+    (inherit %base-os)
+    (services (cons service
+                    (operating-system-user-services %base-os)))))
+
+(define (run-xmpp-test name xmpp-service pid-file create-account)
+  "Run a test of an OS running XMPP-SERVICE, which writes its PID to PID-FILE."
+  (mlet* %store-monad ((os -> (marionette-operating-system
+                               (os-with-service xmpp-service)
+                               #:imported-modules '((gnu services herd))))
+                       (command (system-qemu-image/shared-store-script
+                                 os #:graphic? #f))
+                       (username -> "alice")
+                       (server -> "localhost")
+                       (jid -> (string-append username "@" server))
+                       (password -> "correct horse battery staple")
+                       (port -> 15222)
+                       (message -> "hello world")
+                       (witness -> "/tmp/freetalk-witness"))
+
+    (define script.ft
+      (scheme-file
+       "script.ft"
+       #~(begin
+           (define (handle-received-message time from nickname message)
+             (define (touch file-name)
+               (call-with-output-file file-name (const #t)))
+             (when (equal? message #$message)
+               (touch #$witness)))
+           (add-hook! ft-message-receive-hook handle-received-message)
+
+           (ft-set-jid! #$jid)
+           (ft-set-password! #$password)
+           (ft-set-server! #$server)
+           (ft-set-port! #$port)
+           (ft-set-sslconn! #f)
+           (ft-connect-blocking)
+           (ft-send-message #$jid #$message)
+
+           (ft-set-daemon)
+           (ft-main-loop))))
+
+    (define test
+      (with-imported-modules '((gnu build marionette))
+        #~(begin
+            (use-modules (gnu build marionette)
+                         (srfi srfi-64))
+
+            (define marionette
+              ;; Enable TCP forwarding of the guest's port 5222.
+              (make-marionette (list #$command "-net"
+                                     (string-append "user,hostfwd=tcp::"
+                                                    (number->string #$port)
+                                                    "-:5222"))))
+
+            (define (guest-wait-for-file file)
+              ;; Wait until FILE exists in the guest; 'read' its content and
+              ;; return it.
+              (marionette-eval
+               `(let loop ((i 10))
+                  (cond ((file-exists? ,file)
+                         (call-with-input-file ,file read))
+                        ((> i 0)
+                         (begin
+                           (sleep 1))
+                         (loop (- i 1)))
+                        (else
+                         (error "file didn't show up" ,file))))
+               marionette))
+
+            (define (host-wait-for-file file)
+              ;; Wait until FILE exists in the host.
+              (let loop ((i 60))
+                (cond ((file-exists? file)
+                       #t)
+                      ((> i 0)
+                       (begin
+                         (sleep 1))
+                       (loop (- i 1)))
+                      (else
+                       (error "file didn't show up" file)))))
+
+            (mkdir #$output)
+            (chdir #$output)
+
+            (test-begin "xmpp")
+
+            ;; Wait for XMPP service to be up and running.
+            (test-eq "service running"
+              'running!
+              (marionette-eval
+               '(begin
+                  (use-modules (gnu services herd))
+                  (start-service 'xmpp-daemon)
+                  'running!)
+               marionette))
+
+            ;; Check XMPP service's PID.
+            (test-assert "service process id"
+              (let ((pid (number->string (guest-wait-for-file #$pid-file))))
+                (marionette-eval `(file-exists? (string-append "/proc/" ,pid))
+                                 marionette)))
+
+            ;; Alice sends an XMPP message to herself, with Freetalk.
+            (test-assert "client-to-server communication"
+              (let ((freetalk-bin (string-append #$freetalk "/bin/freetalk")))
+                (marionette-eval '(system* #$create-account #$jid #$password)
+                                 marionette)
+                ;; Freetalk requires write access to $HOME.
+                (setenv "HOME" "/tmp")
+                (system* freetalk-bin "-s" #$script.ft)
+                (host-wait-for-file #$witness)))
+
+            (test-end)
+            (exit (= (test-runner-fail-count (test-runner-current)) 0)))))
+
+    (gexp->derivation name test)))
+
+(define %create-prosody-account
+  (program-file
+   "create-account"
+   #~(begin
+       (use-modules (ice-9 match))
+       (match (command-line)
+         ((command jid password)
+          (let ((password-input (format #f "\"~a~%~a\"" password password))
+                (prosodyctl #$(file-append prosody "/bin/prosodyctl")))
+            (system (string-join
+                     `("echo" ,password-input "|" ,prosodyctl "adduser" ,jid)
+                     " "))))))))
+
+(define %test-prosody
+  (let* ((config (prosody-configuration
+                  (virtualhosts
+                   (list
+                    (virtualhost-configuration
+                     (domain "localhost")))))))
+    (system-test
+     (name "prosody")
+     (description "Connect to a running Prosody daemon.")
+     (value (run-xmpp-test name
+                           (service prosody-service-type config)
+                           (prosody-configuration-pidfile config)
+                           %create-prosody-account)))))