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;;; character-fold-tests.el --- Tests for character-fold.el -*- lexical-binding: t; -*-
;; Copyright (C) 2013-2015 Free Software Foundation, Inc.
;; Author: Artur Malabarba <bruce.connor.am@gmail.com>
;; This program 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.
;; This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
;;; Code:
(require 'ert)
(require 'character-fold)
(defun character-fold--random-word (n)
(mapconcat (lambda (_) (string (+ 9 (random 117))))
(make-list n nil) ""))
(defun character-fold--test-search-with-contents (contents string)
(with-temp-buffer
(insert contents)
(goto-char (point-min))
(should (search-forward-regexp (character-fold-to-regexp string) nil 'noerror))
(goto-char (point-min))
(should (character-fold-search-forward string nil 'noerror))
(should (character-fold-search-backward string nil 'noerror))))
(ert-deftest character-fold--test-consistency ()
(dotimes (n 100)
(let ((w (character-fold--random-word n)))
;; A folded string should always match the original string.
(character-fold--test-search-with-contents w w))))
(ert-deftest character-fold--test-lax-whitespace ()
(dotimes (n 100)
(let ((w1 (character-fold--random-word n))
(w2 (character-fold--random-word n))
(search-spaces-regexp "\\s-+"))
(character-fold--test-search-with-contents
(concat w1 "\s\n\s\t\f\t\n\r\t" w2)
(concat w1 " " w2))
(character-fold--test-search-with-contents
(concat w1 "\s\n\s\t\f\t\n\r\t" w2)
(concat w1 (make-string 90 ?\s) w2)))))
(provide 'character-fold-tests)
;;; character-fold-tests.el ends here
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