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5b174b9683
* test/lisp/international/mule-tests.el (sgml-html-meta-no-post-less-than-10lines): Fix test condition.
143 lines
5.6 KiB
EmacsLisp
143 lines
5.6 KiB
EmacsLisp
;;; mule-tests.el --- unit tests for mule.el -*- lexical-binding: t; -*-
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;; Copyright (C) 2017-2023 Free Software Foundation, Inc.
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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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;;; Commentary:
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;; Unit tests for lisp/international/mule.el.
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;;; Code:
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(require 'ert-x) ;For `ert-simulate-keys'.
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(ert-deftest find-auto-coding--bug27391 ()
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"Check that Bug#27391 is fixed."
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(with-temp-buffer
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(insert "\n[comment]: # ( Local Variables: )\n"
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"[comment]: # ( coding: utf-8 )\n"
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"[comment]: # ( End: )\n")
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(goto-char (point-min))
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(should (equal (let ((auto-coding-alist ())
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(auto-coding-regexp-alist ())
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(auto-coding-functions ()))
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(find-auto-coding "" (buffer-size)))
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'(utf-8 . :coding)))))
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(ert-deftest mule-cmds-tests--encode-ebcdic ()
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(should (equal (encode-coding-char ?a 'ebcdic-int) "\201"))
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(should (not (multibyte-string-p (encode-coding-char ?a 'utf-8)))))
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(ert-deftest mule-cmds--test-universal-coding-system-argument ()
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(should (equal "ccccccccccccccccab"
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(let ((enable-recursive-minibuffers t))
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(ert-simulate-keys
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(kbd "C-x RET c u t f - 8 RET C-u C-u c a b RET")
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(read-string "prompt:"))))))
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(ert-deftest mule-utf-7 ()
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;; utf-7 and utf-7-imap are not ASCII-compatible.
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(should-not (coding-system-get 'utf-7 :ascii-compatible-p))
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(should-not (coding-system-get 'utf-7-imap :ascii-compatible-p))
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;; Invariant ASCII subset.
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(let ((s (apply #'string (append (number-sequence #x20 #x25)
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(number-sequence #x27 #x7e)))))
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(should (equal (encode-coding-string s 'utf-7-imap) s))
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(should (equal (decode-coding-string s 'utf-7-imap) s)))
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;; Escaped ampersand.
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(should (equal (encode-coding-string "a&bcd" 'utf-7-imap) "a&-bcd"))
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(should (equal (decode-coding-string "a&-bcd" 'utf-7-imap) "a&bcd"))
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;; Ability to encode Unicode.
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(should (equal (check-coding-systems-region "あ" nil '(utf-7-imap)) nil))
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(should (equal (encode-coding-string "あ" 'utf-7-imap) "&MEI-"))
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(should (equal (decode-coding-string "&MEI-" 'utf-7-imap) "あ")))
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(ert-deftest mule-hz ()
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;; The chinese-hz encoding is not ASCII compatible.
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(should-not (coding-system-get 'chinese-hz :ascii-compatible-p)))
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;;; Testing `sgml-html-meta-auto-coding-function'.
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(defconst sgml-html-meta-pre "<!doctype html><html><head>"
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"The beginning of a minimal HTML document.")
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(defconst sgml-html-meta-post "</head></html>"
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"The end of a minimal HTML document.")
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(defun sgml-html-meta-run (coding-system)
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"Run `sgml-html-meta-auto-coding-function' on a minimal HTML.
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When CODING-SYSTEM is not nil, insert it, wrapped in a '<meta>'
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element. When CODING-SYSTEM contains HTML meta characters or
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white space, insert it as-is, without additional formatting. Use
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the variables `sgml-html-meta-pre' and `sgml-html-meta-post' to
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provide HTML fragments. Some tests override those variables."
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(with-temp-buffer
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(insert sgml-html-meta-pre
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(cond ((not coding-system)
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"")
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((string-match "[<>'\"\n ]" coding-system)
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coding-system)
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(t
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(format "<meta charset='%s'>" coding-system)))
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sgml-html-meta-post)
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(goto-char (point-min))
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(sgml-html-meta-auto-coding-function (- (point-max) (point-min)))))
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(ert-deftest sgml-html-meta-utf-8 ()
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"Baseline: UTF-8."
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(should (eq 'utf-8 (coding-system-base (sgml-html-meta-run "utf-8")))))
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(ert-deftest sgml-html-meta-windows-hebrew ()
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"A non-Unicode charset."
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(should (eq 'windows-1255 (sgml-html-meta-run "windows-1255"))))
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(ert-deftest sgml-html-meta-none ()
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(should (eq nil (sgml-html-meta-run nil))))
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(ert-deftest sgml-html-meta-unknown-coding ()
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(should (eq nil (sgml-html-meta-run "XXX"))))
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(ert-deftest sgml-html-meta-no-pre ()
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"Without the prefix, so not HTML."
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(let ((sgml-html-meta-pre ""))
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(should (eq nil (sgml-html-meta-run "utf-8")))))
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(ert-deftest sgml-html-meta-no-post-less-than-10lines ()
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"No '</head>', detect charset in the first 10 lines."
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(let ((sgml-html-meta-post ""))
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(should (eq 'utf-8 (coding-system-base
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(sgml-html-meta-run
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(concat "\n\n\n\n\n\n\n\n\n"
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"<meta charset='utf-8'>")))))))
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(ert-deftest sgml-html-meta-no-post-10lines ()
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"No '</head>', do not detect charset after the first 10 lines."
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(let ((sgml-html-meta-post ""))
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(should (eq nil (sgml-html-meta-run
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(concat "\n\n\n\n\n\n\n\n\n\n"
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"<meta charset='utf-8'>"))))))
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(ert-deftest sgml-html-meta-utf-8-with-bom ()
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"Requesting 'UTF-8' does not override `utf-8-with-signature'.
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Check fix for Bug#20623."
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(let ((buffer-file-coding-system 'utf-8-with-signature))
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(should (eq 'utf-8-with-signature (sgml-html-meta-run "utf-8")))))
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;; Stop "Local Variables" above causing confusion when visiting this file.
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;;; mule-tests.el ends here
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