Use lexical-binding in version.el and add tests

* lisp/version.el: Use lexical-binding.
* test/lisp/version-tests.el: New file.

1 files changed, 31 insertions, 0 deletions

diff --git a/test/lisp/version-tests.el b/test/lisp/version-tests.el
new file mode 100644
index 00000000000..8fbd4a19fc5
--- /dev/null
+++ b/test/lisp/version-tests.el
@@ -0,0 +1,31 @@
+;;; version-tests.el --- Tests for version.el  -*- lexical-binding: t -*-
+
+;; Copyright (C) 2020 Free Software Foundation, Inc.
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs 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 Emacs 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 Emacs.  If not, see <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;;; Code:
+
+(require 'ert)
+
+(ert-deftest test-emacs-version ()
+  (should (string-match emacs-version (emacs-version)))
+  (should (string-match system-configuration (emacs-version))))
+
+(provide 'version-tests)
+;;; version-tests.el ends here