1 files changed, 84 insertions, 0 deletions
diff --git a/test/lisp/international/mule-util-tests.el b/test/lisp/international/mule-util-tests.el
new file mode 100644
index 00000000000..24b56c0969b
--- /dev/null
+++ b/test/lisp/international/mule-util-tests.el
@@ -0,0 +1,84 @@
+;;; mule-util --- tests for international/mule-util.el
+
+;; Copyright (C) 2002-2015 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 <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;;; Code:
+
+(require 'ert)
+(require 'mule-util)
+
+(defconst mule-util-test-truncate-data
+  '((("" 0) . "")
+    (("x" 1) . "x")
+    (("xy" 1) . "x")
+    (("xy" 2 1) . "y")
+    (("xy" 0) . "")
+    (("xy" 3) . "xy")
+    (("中" 0) . "")
+    (("中" 1) . "")
+    (("中" 2) . "中")
+    (("中" 1 nil ? ) . " ")
+    (("中文" 3 1 ? ) . "  ")
+    (("x中x" 2) . "x")
+    (("x中x" 3) . "x中")
+    (("x中x" 3) . "x中")
+    (("x中x" 4 1) . "中x")
+    (("kor한e글an" 8 1 ? ) . "or한e글")
+    (("kor한e글an" 7 2 ? ) . "r한e ")
+    (("" 0 nil nil "...") . "")
+    (("x" 3 nil nil "...") . "x")
+    (("中" 3 nil nil "...") . "中")
+    (("foo" 3 nil nil "...") . "foo")
+    (("foo" 2 nil nil "...") . "fo") ;; XEmacs failure?
+    (("foobar" 6 0 nil "...") . "foobar")
+    (("foobarbaz" 6 nil nil "...") . "foo...")
+    (("foobarbaz" 7 2 nil "...") . "ob...")
+    (("foobarbaz" 9 3 nil "...") . "barbaz")
+    (("こhんeにlちlはo" 15 1 ?  t) . " hんeにlちlはo")
+    (("こhんeにlちlはo" 14 1 ?  t) . " hんeにlち...")
+    (("x" 3 nil nil "粵語") . "x")
+    (("中" 2 nil nil "粵語") . "中")
+    (("中" 1 nil ?x "粵語") . "x") ;; XEmacs error
+    (("中文" 3 nil ?  "粵語") . "中 ") ;; XEmacs error
+    (("foobarbaz" 4 nil nil  "粵語") . "粵語")
+    (("foobarbaz" 5 nil nil  "粵語") . "f粵語")
+    (("foobarbaz" 6 nil nil  "粵語") . "fo粵語")
+    (("foobarbaz" 8 3 nil "粵語") . "b粵語")
+    (("こhんeにlちlはo" 14 4 ?x "日本語") . "xeに日本語")
+    (("こhんeにlちlはo" 13 4 ?x "日本語") . "xex日本語")
+    )
+  "Test data for `truncate-string-to-width'.")
+
+(defun mule-util-test-truncate-create (n)
+  "Create a test for element N of the `mule-util-test-truncate-data' constant."
+  (let ((testname (intern (format "mule-util-test-truncate-%.2d" n)))
+        (testdoc (format "Test element %d of `mule-util-test-truncate-data'."
+                         n))
+        (testdata (nth n mule-util-test-truncate-data)))
+    (eval
+     `(ert-deftest ,testname ()
+        ,testdoc
+        (should (equal (apply 'truncate-string-to-width ',(car testdata))
+                              ,(cdr testdata)))))))
+
+(dotimes (i (length mule-util-test-truncate-data))
+  (mule-util-test-truncate-create i))
+
+;;; mule-util.el ends here