120 lines
3.4 KiB
EmacsLisp
120 lines
3.4 KiB
EmacsLisp
;;; page-tests.el --- Tests for page.el -*- lexical-binding: t; -*-
|
||
|
||
;; Copyright (C) 2019-2024 Free Software Foundation, Inc.
|
||
|
||
;; Author: Simen Heggestøyl <simenheg@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 'ert)
|
||
(require 'page)
|
||
|
||
(ert-deftest page-tests-forward-page ()
|
||
(with-temp-buffer
|
||
(insert "foo\n \nbar\n \nbaz")
|
||
(forward-page -1)
|
||
(should (looking-at-p "\nbaz"))
|
||
(forward-page -2)
|
||
(should (= (point) (point-min)))
|
||
(forward-page 1)
|
||
(should (looking-at-p "\nbar"))
|
||
(forward-page)
|
||
(should (looking-at-p "\nbaz"))
|
||
(forward-page 1)
|
||
(should (= (point) (point-max)))))
|
||
|
||
(ert-deftest page-tests-backward-page ()
|
||
(with-temp-buffer
|
||
(insert "foo\n \nbar\n \nbaz")
|
||
(backward-page 1)
|
||
(should (looking-at-p "\nbaz"))
|
||
(backward-page)
|
||
(should (looking-at-p "\nbar"))
|
||
(backward-page 1)
|
||
(should (= (point) (point-min)))
|
||
(backward-page -1)
|
||
(should (looking-at-p "\nbar"))
|
||
(backward-page -2)
|
||
(should (= (point) (point-max)))))
|
||
|
||
(defun page-tests--region-string ()
|
||
"Return the contents of the region as a string."
|
||
(buffer-substring (region-beginning) (region-end)))
|
||
|
||
(ert-deftest page-tests-mark-page ()
|
||
(with-temp-buffer
|
||
(insert "foo\n \nbar\n \nbaz")
|
||
(mark-page)
|
||
(should (equal (page-tests--region-string) "\nbaz"))
|
||
(mark-page -2)
|
||
(should (equal (page-tests--region-string) "foo\n "))
|
||
(mark-page 1)
|
||
(should (equal (page-tests--region-string) "\nbar\n "))))
|
||
|
||
(ert-deftest page-tests-narrow-to-page ()
|
||
(with-temp-buffer
|
||
(insert "foo\n \nbar\n \nbaz")
|
||
(goto-char (point-min))
|
||
(narrow-to-page)
|
||
(should (equal (buffer-string) "foo\n"))
|
||
(narrow-to-page 2)
|
||
(should (equal (buffer-string) "baz"))
|
||
(narrow-to-page -1)
|
||
(should (equal (buffer-string) "bar\n"))
|
||
|
||
(widen)
|
||
(goto-char (point-min))
|
||
(narrow-to-page)
|
||
(should (equal (buffer-string) "foo\n"))
|
||
(goto-char (point-max))
|
||
(narrow-to-page 2)
|
||
(should (equal (buffer-string) "baz"))
|
||
(goto-char (point-max))
|
||
(narrow-to-page -1)
|
||
(should (equal (buffer-string) "bar\n"))))
|
||
|
||
(ert-deftest page-tests-count-lines-page ()
|
||
(with-temp-buffer
|
||
(insert "foo\n \nbar\n \nbaz")
|
||
(goto-char (point-min))
|
||
(should (equal (page--count-lines-page) '(1 0 1)))
|
||
(goto-char (point-max))
|
||
(should (equal (page--count-lines-page) '(2 2 0)))))
|
||
|
||
(ert-deftest page-tests-what-page ()
|
||
(with-temp-buffer
|
||
(insert "foo\n \nbar\n \nbaz")
|
||
(goto-char (point-min))
|
||
(should (equal (page--what-page) '(1 1)))
|
||
(forward-char)
|
||
(should (equal (page--what-page) '(1 1)))
|
||
(forward-page)
|
||
(should (equal (page--what-page) '(2 1)))
|
||
(forward-line)
|
||
(should (equal (page--what-page) '(2 2)))
|
||
(forward-page)
|
||
(should (equal (page--what-page) '(3 1)))))
|
||
|
||
|
||
;;; page-tests.el ends here
|