--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/automated/syntax-tests.el	Mon Aug 13 11:13:30 2007 +0200
@@ -0,0 +1,102 @@
+;; Copyright (C) 1999 Free Software Foundation, Inc.
+
+;; Author: Yoshiki Hayashi  <t90553@mail.ecc.u-tokyo.ac.jp>
+;; Maintainer: Yoshiki Hayashi  <t90553@mail.ecc.u-tokyo.ac.jp>
+;; Created: 1999
+;; Keywords: tests
+
+;; This file is part of XEmacs.
+
+;; XEmacs 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 2, or (at your option)
+;; any later version.
+
+;; XEmacs 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 XEmacs; see the file COPYING.  If not, write to the Free
+;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+;; 02111-1307, USA.
+
+;;; Synched up with: Not in FSF.
+
+;;; Commentary:
+
+;; Test syntax related functions.
+;; Right now it tests scan_words using forward-word and backward-word.
+;; See test-harness.el for instructions on how to run these tests.
+
+;;; Notation
+;; W:   word constituent character.
+;; NW:  non word constituent character.
+;; -!-: current point.
+;; EOB: end of buffer
+;; BOB: beginning of buffer.
+
+;; Algorithm of scan_words is simple.  It just searches SW and then
+;; moves to NW.  When with MULE, it also stops at word boundary.  Word
+;; boundary is tricky and listing all possible cases will be huge.
+;; Those test are omitted here as it doesn't affect core
+;; functionality.
+
+(defun test-forward-word (string stop)
+  (goto-char (point-max))
+  (let ((point (point)))
+    (insert string)
+    (goto-char point)
+    (forward-word 1)
+    (Assert (eq (point) (+ point stop)))))
+
+(with-temp-buffer
+  ;; -!- W NW
+  (test-forward-word "W " 1)
+  (test-forward-word "WO " 2)
+  ;; -!- W EOB
+  (test-forward-word "W" 1)
+  (test-forward-word "WO" 2)
+  ;; -!- NW EOB
+  (test-forward-word " " 1)
+  (test-forward-word " !" 2)
+  ;; -!- NW W NW
+  (test-forward-word " W " 2)
+  (test-forward-word " WO " 3)
+  (test-forward-word " !W " 3)
+  (test-forward-word " !WO " 4)
+  ;; -!- NW W EOB
+  (test-forward-word " W" 2)
+  (test-forward-word " WO" 3)
+  (test-forward-word " !W" 3)
+  (test-forward-word " !WO" 4))
+
+(defun test-backward-word (string stop)
+  (goto-char (point-min))
+  (insert string)
+  (let ((point (point)))
+    (backward-word 1)
+    (Assert (eq (point) (- point stop)))))
+
+(with-temp-buffer
+  ;; NW W -!-
+  (test-backward-word " W" 1)
+  (test-backward-word " WO" 2)
+  ;; BOB W -!-
+  (test-backward-word "W" 1)
+  (test-backward-word "WO" 2)
+  ;; BOB NW -!-
+  ;; -!-NW EOB
+  (test-backward-word " " 1)
+  (test-backward-word " !" 2)
+  ;; NW W NW -!-
+  (test-backward-word " W " 2)
+  (test-backward-word " WO " 3)
+  (test-backward-word " W !" 3)
+  (test-backward-word " WO !" 4)
+  ;; BOB W NW -!-
+  (test-backward-word "W " 2)
+  (test-backward-word "WO " 3)
+  (test-backward-word "W !" 3)
+  (test-backward-word "WO !" 4))