daemon: Add test.

* daemon.am (test_root, AM_TESTS_ENVIRONMENT): New variables.
  (clean-local): New target.
* tests/guix-daemon.sh: New file.

.gitignore

@@ -60,3 +60,4 @@ stamp-h[0-9]
 /libstore.a
 /libutil.a
 /guix-daemon
+/test-tmp

daemon.am

@@ -151,3 +151,15 @@ EXTRA_DIST +=					\
   nix/libstore/schema.sql			\
   nix/AUTHORS					\
   nix/COPYING
+
+# Temporary directory used to store the daemon's data.
+test_root = $(abs_top_builddir)/test-tmp
+
+AM_TESTS_ENVIRONMENT +=				\
+  TEST_ROOT="$(test_root)"
+
+TESTS +=					\
+  tests/guix-daemon.sh
+
+clean-local:
+	-rm -rf "$(test_root)"

tests/guix-daemon.sh

@@ -0,0 +1,46 @@
+# Guix --- Nix package management from Guile.         -*- coding: utf-8 -*-
+# Copyright (C) 2012 Ludovic Courtès <ludo@gnu.org>
+#
+# This file is part of Guix.
+#
+# 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.
+#
+# 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 Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+#
+# Test the daemon.
+#
+
+set -e
+
+NIX_SUBSTITUTERS=""		# don't resort to substituters
+NIX_IGNORE_SYMLINK_STORE=1	# in case the store is a symlink
+NIX_STORE_DIR="$TEST_ROOT/store"
+NIX_LOCALSTATE_DIR="$TEST_ROOT/var"
+NIX_LOG_DIR="$TEST_ROOT/var/log/nix"
+NIX_STATE_DIR="$TEST_ROOT/var/nix"
+NIX_DB_DIR="$TEST_ROOT/db"
+export NIX_SUBSTITUTERS NIX_IGNORE_SYMLINK_STORE NIX_STORE_DIR	\
+    NIX_LOCALSTATE_DIR NIX_LOG_DIR NIX_STATE_DIR NIX_DB_DIR
+
+guix-daemon --version
+guix-build --version
+
+# Launch the daemon without chroot support because is may be
+# unavailable, for instance if we're not running as root.
+guix-daemon --disable-chroot &
+
+daemon_pid=$!
+trap "kill $daemon_pid" EXIT
+
+guix-build -e '(@ (distro packages bootstrap) %bootstrap-guile)'
+guix-build coreutils -n