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+;;; message-mode-tests.el --- Tests for message-mode  -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2015-2016 Free Software Foundation, Inc.
+
+;; Author: João Távora <joaotavora@gmail.com>
+
+;; 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 <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; This file contains tests for message-mode.
+
+;;; Code:
+
+(require 'message)
+(require 'ert)
+(require 'ert-x)
+
+(ert-deftest message-mode-propertize ()
+  (with-temp-buffer
+    (unwind-protect
+        (let (message-auto-save-directory)
+          (message-mode)
+          (insert "here's an opener (\n"
+                  "here's a sad face :-(\n"
+                  "> here's citing someone with an opener (\n"
+                  "and here's a closer ")
+          (let ((last-command-event ?\)))
+            (ert-simulate-command '(self-insert-command 1)))
+          ;; Auto syntax propertization doesn't kick in until
+          ;; parse-sexp-lookup-properties is set.
+          (setq-local parse-sexp-lookup-properties t)
+          (backward-sexp)
+          (should (string= "here's an opener "
+                           (buffer-substring-no-properties
+                            (line-beginning-position)
+                            (point))))
+          (forward-sexp)
+          (should (string= "and here's a closer )"
+                           (buffer-substring-no-properties
+                            (line-beginning-position)
+                            (point)))))
+      (set-buffer-modified-p nil))))
+
+(provide 'message-mode-tests)
+
+;;; message-mode-tests.el ends here