tests: Add 'hello-singleton' specification example.

* tests/hello-singleton.scm: New file.
* Makefile.am (EXTRA_DIST): Add it.

Makefile.am

@@ -82,6 +82,7 @@ EXTRA_DIST = \
   .dir-locals.el \
   tests/gnu-system.scm \
   tests/guix-jobs.scm \
+  tests/hello-singleton.scm \
   tests/hello-subset.scm \
   $(TESTS)
 

tests/hello-singleton.scm

+;;; hello-singleton.scm -- job specification test for hello in master
+;;; Copyright © 2016 Mathieu Lirzin <mthl@gnu.org>
+;;;
+;;; This file is part of Cuirass.
+;;;
+;;; Cuirass 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.
+;;;
+;;; Cuirass 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 Cuirass.  If not, see <http://www.gnu.org/licenses/>.
+
+(define (local-file file)
+  ;; In the common case jobs will be defined relative to the repository.
+  ;; However for testing purpose use local gnu-system.scm instead.
+  (string-append (dirname (current-filename)) "/" file))
+
+(define hello-master
+  `((#:name . "guix")
+    (#:url . "git://git.savannah.gnu.org/guix.git")
+    (#:load-path . ".")
+    (#:file . ,(local-file "gnu-system.scm"))
+    (#:proc . hydra-jobs)
+    (#:arguments (subset . "hello"))
+    (#:branch . "master")))
+
+(list hello-master)