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| -rw-r--r-- | test/src/marker-tests.el | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/test/src/marker-tests.el b/test/src/marker-tests.el new file mode 100644 index 0000000000..18d49addb2 --- /dev/null +++ b/test/src/marker-tests.el @@ -0,0 +1,60 @@ +;;; marker-tests.el --- tests for marker.c functions -*- lexical-binding: t -*- + +;; Copyright (C) 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) + +;; The following three tests assert that Emacs survives operations +;; copying a marker whose character position differs from its byte +;; position into a buffer whose character size equals its byte size +;; (Bug#24368). + +(ert-deftest marker-set-window-start-from-other-buffer () + "`set-window-start' from other buffer's marker." + (let ((text-quoting-style 'curve)) + (describe-function 'describe-function)) + (let* ((help (get-buffer "*Help*")) + (marker (with-current-buffer help + (copy-marker (point-max))))) + (should (set-window-start (selected-window) marker)))) + +(ert-deftest marker-set-window-point-from-other-buffer () + "`set-window-point' from another buffer's marker." + (let ((text-quoting-style 'curve)) + (describe-function 'describe-function)) + (let* ((help (get-buffer "*Help*")) + (marker (with-current-buffer help + (copy-marker (point-max))))) + (with-selected-window (get-buffer-window help) + (should (set-window-point (get-buffer-window "*scratch*") marker))))) + +(ert-deftest marker-goto-char-from-other-buffer () + "`goto-char' from another buffer's marker." + (let ((text-quoting-style 'curve)) + (describe-function 'describe-function)) + (let ((marker-1 (make-marker)) + (marker-2 (make-marker))) + (describe-function 'describe-function) + (with-current-buffer "*Help*" + (set-marker marker-1 (point-max))) + (set-marker marker-2 marker-1) + (should (goto-char marker-2)))) + +;;; marker-tests.el ends here. |