70 lines
2.7 KiB
EmacsLisp
70 lines
2.7 KiB
EmacsLisp
;;; regexp-opt-tests.el --- Tests for regexp-opt.el -*- lexical-binding: t -*-
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;; Copyright (C) 2013-2024 Free Software Foundation, Inc.
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;; Author: Stefan Monnier <monnier@iro.umontreal.ca>
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;; Keywords: internal
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;; Human-Keywords: internal
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Code:
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(require 'regexp-opt)
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(defun regexp-opt-test--permutations (l)
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"All permutations of L, assuming no duplicates."
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(if (cdr l)
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(mapcan (lambda (x)
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(mapcar (lambda (p) (cons x p))
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(regexp-opt-test--permutations (remove x l))))
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l)
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(list l)))
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(ert-deftest regexp-opt-longest-match ()
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"Check that the regexp always matches as much as possible."
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(let ((s "abcd"))
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(dolist (perm (regexp-opt-test--permutations '("a" "ab" "ac" "abc")))
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(should (equal (and (string-match (regexp-opt perm) s)
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(match-string 0 s))
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"abc")))))
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(ert-deftest regexp-opt-charset ()
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(should (equal (regexp-opt-charset '(?a ?b ?a)) "[ab]"))
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(should (equal (regexp-opt-charset '(?D ?d ?B ?a ?b ?C ?7 ?a ?c ?A))
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"[7A-Da-d]"))
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(should (equal (regexp-opt-charset '(?a)) "a"))
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(should (equal (regexp-opt-charset '(?^)) "\\^"))
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(should (equal (regexp-opt-charset '(?-)) "-"))
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(should (equal (regexp-opt-charset '(?\])) "]"))
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(should (equal (regexp-opt-charset '(?^ ?\])) "[]^]"))
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(should (equal (regexp-opt-charset '(?^ ?-)) "[-^]"))
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(should (equal (regexp-opt-charset '(?- ?\])) "[]-]"))
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(should (equal (regexp-opt-charset '(?- ?\] ?^)) "[]^-]"))
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(should (equal (regexp-opt-charset '(?^ ?a)) "[a^]"))
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(should (equal (regexp-opt-charset '(?- ?a)) "[a-]"))
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(should (equal (regexp-opt-charset '(?\] ?a)) "[]a]"))
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(should (equal (regexp-opt-charset '(?^ ?\] ?a)) "[]a^]"))
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(should (equal (regexp-opt-charset '(?^ ?- ?a)) "[a^-]"))
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(should (equal (regexp-opt-charset '(?- ?\] ?a)) "[]a-]"))
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(should (equal (regexp-opt-charset '(?- ?\] ?^ ?a)) "[]a^-]"))
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(should (equal (regexp-opt-charset '()) regexp-unmatchable)))
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;;; regexp-opt-tests.el ends here
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