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+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2014 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 (test-syscalls)
+ #:use-module (guix build syscalls)
+ #:use-module (srfi srfi-64))
+
+;; Test the (guix build syscalls) module, although there's not much that can
+;; actually be tested without being root.
+
+(test-begin "syscalls")
+
+(test-equal "mount, ENOENT"
+ ENOENT
+ (catch 'system-error
+ (lambda ()
+ (mount "/dev/null" "/does-not-exist" "ext2")
+ #f)
+ (compose system-error-errno list)))
+
+(test-equal "umount, ENOENT"
+ ENOENT
+ (catch 'system-error
+ (lambda ()
+ (umount "/does-not-exist")
+ #f)
+ (compose system-error-errno list)))
+
+(test-end)
+
+
+(exit (= (test-runner-fail-count (test-runner-current)) 0))