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Diffstat (limited to 'test/src/buffer-tests.el')
| -rw-r--r-- | test/src/buffer-tests.el | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/test/src/buffer-tests.el b/test/src/buffer-tests.el new file mode 100644 index 0000000000..62875216a3 --- /dev/null +++ b/test/src/buffer-tests.el @@ -0,0 +1,48 @@ +;;; buffer-tests.el --- tests for buffer.c functions -*- lexical-binding: t -*- + +;; Copyright (C) 2015-2016 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/>. + +;;; Code: + +(require 'ert) + +(ert-deftest overlay-modification-hooks-message-other-buf () + "Test for bug#21824. +After a modification-hook has been run and there is an overlay in +the *Messages* buffer, the message coalescing [2 times] wrongly +runs the modification-hook of the overlay in the 1st buffer, but +with parameters from the *Messages* buffer modification." + (let ((buf nil) + (msg-ov nil)) + (with-temp-buffer + (insert "123") + (overlay-put (make-overlay 1 3) + 'modification-hooks + (list (lambda (&rest _) + (setq buf (current-buffer))))) + (goto-char 2) + (insert "x") + (unwind-protect + (progn + (setq msg-ov (make-overlay 1 1 (get-buffer-create "*Messages*"))) + (message "a message") + (message "a message") + (should (eq buf (current-buffer)))) + (when msg-ov (delete-overlay msg-ov)))))) + +;;; buffer-tests.el ends here |