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| | ;;; hl-line-tests.el --- Test suite for hl-line. -*- lexical-binding: t -*-
;; Copyright (C) 2022 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 <https://www.gnu.org/licenses/>.
;;; Code:
(require 'ert)
(require 'hl-line)
(ert-deftest hl-line-sticky ()
(should hl-line-sticky-flag)
(with-temp-buffer
(let ((from-buffer (current-buffer)))
(hl-line-mode 1)
(save-excursion
(insert "foo"))
(hl-line-highlight)
(should (cl-some (apply-partially #'eq hl-line--overlay)
(overlays-at (point))))
(switch-to-buffer (get-buffer-create "*scratch*"))
(hl-line-mode 1)
(save-excursion
(insert "bar"))
(hl-line-highlight)
(should (cl-some (apply-partially #'eq hl-line--overlay)
(overlays-at (point))))
(should (buffer-local-value 'hl-line--overlay from-buffer))
(should-not (eq (buffer-local-value 'hl-line--overlay from-buffer)
hl-line--overlay))
(customize-set-variable 'hl-line-sticky-flag nil)
(should hl-line--overlay)
(should (buffer-live-p from-buffer))
(should-not (buffer-local-value 'hl-line--overlay from-buffer)))))
(provide 'hl-line-tests)
;;; hl-line-tests.el ends here
|