code.delx.au - gnu-emacs/blob - test/lisp/character-fold-tests.el

   1 ;;; character-fold-tests.el --- Tests for character-fold.el  -*- lexical-binding: t; -*-
   2
   3 ;; Copyright (C) 2013-2015 Free Software Foundation, Inc.
   4
   5 ;; Author: Artur Malabarba <bruce.connor.am@gmail.com>
   6
   7 ;; This program is free software; you can redistribute it and/or modify
   8 ;; it under the terms of the GNU General Public License as published by
   9 ;; the Free Software Foundation, either version 3 of the License, or
  10 ;; (at your option) any later version.
  11
  12 ;; This program is distributed in the hope that it will be useful,
  13 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 ;; GNU General Public License for more details.
  16
  17 ;; You should have received a copy of the GNU General Public License
  18 ;; along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19
  20 ;;; Code:
  21
  22 (require 'ert)
  23 (require 'character-fold)
  24
  25 (defun character-fold--random-word (n)
  26   (mapconcat (lambda (_) (string (+ 9 (random 117))))
  27              (make-list n nil) ""))
  28
  29 (defun character-fold--test-search-with-contents (contents string)
  30   (with-temp-buffer
  31     (insert contents)
  32     (goto-char (point-min))
  33     (should (search-forward-regexp (character-fold-to-regexp string) nil 'noerror))
  34     (goto-char (point-min))
  35     (should (character-fold-search-forward string nil 'noerror))
  36     (should (character-fold-search-backward string nil 'noerror))))
  37
  38 \f
  39 (ert-deftest character-fold--test-consistency ()
  40   (dotimes (n 100)
  41     (let ((w (character-fold--random-word n)))
  42       ;; A folded string should always match the original string.
  43       (character-fold--test-search-with-contents w w))))
  44
  45 (ert-deftest character-fold--test-lax-whitespace ()
  46   (dotimes (n 100)
  47     (let ((w1 (character-fold--random-word n))
  48           (w2 (character-fold--random-word n))
  49           (search-spaces-regexp "\\s-+"))
  50       (character-fold--test-search-with-contents
  51        (concat w1 "\s\n\s\t\f\t\n\r\t" w2)
  52        (concat w1 " " w2))
  53       (character-fold--test-search-with-contents
  54        (concat w1 "\s\n\s\t\f\t\n\r\t" w2)
  55        (concat w1 (make-string 90 ?\s) w2)))))
  56
  57 (provide 'character-fold-tests)
  58 ;;; character-fold-tests.el ends here