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diff --git a/test/lisp/osc-tests.el b/test/lisp/osc-tests.el
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+;;; osc-tests.el --- Tests for osc.el  -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2022 Free Software Foundation, Inc.
+
+;; Author: Matthias Meulien <orontee@gmail.com>
+;; Keywords:
+
+;; 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 'osc)
+(require 'ert)
+
+(defvar osc-tests--strings
+  `(
+    ("Hello World" "Hello World")
+
+    ;; window title
+    ("Buffer \e]2;A window title\e\\content" "Buffer content")
+
+    ;; window title
+    ("Unfinished \e]2;window title" "Unfinished \e]2;window title")
+
+    ;; current directory
+    ("\e]7;file://127.0.0.1/tmp\e\\user@host$ " "user@host$ ")
+
+    ;; hyperlink
+    ("\e]8;;http://example.com\e\\This is a link\e]8;;\e\\" "This is a link")
+    ))
+;; Don't output those strings to stdout since they may have
+;; side-effects on the environment
+
+(ert-deftest osc-tests-apply-region-no-handlers ()
+  (let ((osc-handlers nil))
+    (pcase-dolist (`(,input ,text) osc-tests--strings)
+      (with-temp-buffer
+        (insert input)
+        (osc-apply-on-region (point-min) (point-max))
+        (should (equal (buffer-string) text))))))