tests: Add whole-system test.

* gnu/system/vm.scm (virtualized-operating-system): Export.
* gnu/tests/base.scm: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
* Makefile.am (check-system): New target.

Makefile.am

@@ -330,6 +330,13 @@ check-local:
 
 endif !CAN_RUN_TESTS
 
+check-system: $(GOBJECTS)
+	$(AM_V_at)echo "Running system tests..."
+	$(AM_V_at)$(top_builddir)/pre-inst-env			\
+	   $(GUILE) --no-auto-compile				\
+	   -e '(@@ (run-system-tests) run-system-tests)'	\
+	   $(top_srcdir)/build-aux/run-system-tests.scm
+
 # Public key used to sign substitutes from hydra.gnu.org.
 dist_pkgdata_DATA = hydra.gnu.org.pub
 

gnu/local.mk

@@ -401,7 +401,8 @@ GNU_SYSTEM_MODULES =				\
   gnu/build/marionette.scm			\
   gnu/build/vm.scm				\
 						\
-  gnu/tests.scm
+  gnu/tests.scm					\
+  gnu/tests/base.scm
 
 
 patchdir = $(guilemoduledir)/gnu/packages/patches

gnu/system/vm.scm

@@ -58,6 +58,7 @@ (define-module (gnu system vm)
 
   #:export (expression->derivation-in-linux-vm
             qemu-image
+            virtualized-operating-system
             system-qemu-image
 
             system-qemu-image/shared-store

gnu/tests/base.scm

@@ -0,0 +1,168 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2016 Ludovic Courtès <ludo@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 base)
+  #: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 shepherd)
+  #:use-module (guix gexp)
+  #:use-module (guix store)
+  #:use-module (guix monads)
+  #:use-module (guix packages)
+  #:use-module (srfi srfi-1)
+  #:export (%test-basic-os))
+
+(define %simple-os
+  (operating-system
+    (host-name "komputilo")
+    (timezone "Europe/Berlin")
+    (locale "en_US.UTF-8")
+
+    (bootloader (grub-configuration (device "/dev/sdX")))
+    (file-systems (cons (file-system
+                          (device "my-root")
+                          (title 'label)
+                          (mount-point "/")
+                          (type "ext4"))
+                        %base-file-systems))
+    (firmware '())
+
+    (users (cons (user-account
+                  (name "alice")
+                  (comment "Bob's sister")
+                  (group "users")
+                  (supplementary-groups '("wheel" "audio" "video"))
+                  (home-directory "/home/alice"))
+                 %base-user-accounts))))
+
+
+(define %test-basic-os
+  ;; Monadic derivation that instruments %SIMPLE-OS, runs it in a VM, and runs
+  ;; a series of basic functionality tests.
+  (mlet* %store-monad ((os -> (marionette-operating-system
+                               %simple-os
+                               #:imported-modules '((gnu services herd)
+                                                    (guix combinators))))
+                       (run   (system-qemu-image/shared-store-script
+                               os #:graphic? #f)))
+    (define test
+      #~(begin
+          (use-modules (gnu build marionette)
+                       (srfi srfi-1)
+                       (srfi srfi-26)
+                       (srfi srfi-64)
+                       (ice-9 match))
+
+          (define marionette
+            (make-marionette (list #$run)))
+
+          (mkdir #$output)
+          (chdir #$output)
+
+          (test-begin "basic")
+
+          (test-assert "uname"
+            (match (marionette-eval '(uname) marionette)
+              (#("Linux" "komputilo" version _ "x86_64")
+               (string-prefix? #$(package-version
+                                  (operating-system-kernel os))
+                               version))))
+
+          (test-assert "shell and user commands"
+            ;; Is everything in $PATH?
+            (zero? (marionette-eval '(system "
+. /etc/profile
+set -e -x
+guix --version
+ls --version
+grep --version
+info --version")
+                                    marionette)))
+
+          (test-assert "accounts"
+            (let ((users (marionette-eval '(begin
+                                             (use-modules (ice-9 match))
+                                             (let loop ((result '()))
+                                               (match (getpw)
+                                                 (#f (reverse result))
+                                                 (x  (loop (cons x result))))))
+                                          marionette)))
+              (lset= string=?
+                     (map passwd:name users)
+                     (list
+                      #$@(map user-account-name
+                              (operating-system-user-accounts os))))))
+
+          (test-assert "shepherd services"
+            (let ((services (marionette-eval '(begin
+                                                (use-modules (gnu services herd))
+                                                (call-with-values current-services
+                                                  append))
+                                             marionette)))
+              (lset= eq?
+                     (pk 'services services)
+                     '(root #$@(operating-system-shepherd-service-names
+                                (virtualized-operating-system os '()))))))
+
+          (test-equal "login on tty1"
+            "root\n"
+            (begin
+              (marionette-control "sendkey ctrl-alt-f1" marionette)
+              ;; Wait for the 'term-tty1' service to be running
+              (marionette-eval
+               '(begin
+                  (use-modules (gnu services herd))
+
+                  (let loop ((i 0))
+                    (when (> i 10)
+                      (error "terminal service not running" (current-services)))
+                    (unless (memq 'term-tty1 (current-services))
+                      (sleep 1)
+                      (loop (+ i 1)))))
+               marionette)
+
+              ;; Now we can type.
+              (marionette-type "root\n\nid -un > logged-in\n" marionette)
+
+              ;; It can take a while before the shell commands are executed.
+              (let loop ((i 0))
+                (unless (or (file-exists? "/root/logged-in") (> i 15))
+                  (sleep 1)
+                  (loop (+ i 1))))
+              (marionette-eval '(use-modules (rnrs io ports)) marionette)
+              (marionette-eval '(call-with-input-file "/root/logged-in"
+                                  get-string-all)
+                               marionette)))
+
+          (test-assert "screendump"
+            (begin
+              (marionette-control (string-append "screendump " #$output
+                                                 "/tty1.ppm")
+                                  marionette)
+              (file-exists? "tty1.ppm")))
+
+          (test-end)
+          (exit (= (test-runner-fail-count (test-runner-current)) 0))))
+
+    (gexp->derivation "basic" test
+                      #:modules '((gnu build marionette)))))