test/automated/sgml-mode-tests.el

   1 ;;; sgml-mode-tests.el --- Tests for sgml-mode
   2
   3 ;; Copyright (C) 2015 Free Software Foundation, Inc.
   4
   5 ;; Author: Przemysław Wojnowski <esperanto@cumego.com>
   6 ;; Keywords: tests
   7
   8 ;; This file is part of GNU Emacs.
   9
  10 ;; GNU Emacs is free software: you can redistribute it and/or modify
  11 ;; it under the terms of the GNU General Public License as published by
  12 ;; the Free Software Foundation, either version 3 of the License, or
  13 ;; (at your option) any later version.
  14
  15 ;; GNU Emacs is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;; GNU General Public License for more details.
  19
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  22
  23 ;;; Commentary:
  24
  25 ;;; Code:
  26
  27 (require 'sgml-mode)
  28 (require 'ert)
  29
  30 (defmacro sgml-with-content (content &rest body)
  31   "Insert CONTENT into a temporary `sgml-mode' buffer and execute BODY on it.
  32 The point is set to the beginning of the buffer."
  33   `(with-temp-buffer
  34      (sgml-mode)
  35      (insert ,content)
  36      (goto-char (point-min))
  37      ,@body))
  38
  39 ;;; sgml-delete-tag
  40
  41 (ert-deftest sgml-delete-tag-should-not-delete-tags-when-wrong-args ()
  42   "Don't delete tag, when number of tags to delete is not positive number."
  43   (let ((content "<p>Valar Morghulis</p>"))
  44     (sgml-with-content
  45      content
  46      (sgml-delete-tag -1)
  47      (should (string= content (buffer-string)))
  48      (sgml-delete-tag 0)
  49      (should (string= content (buffer-string))))))
  50
  51 (ert-deftest sgml-delete-tag-should-delete-tags-n-times ()
  52   ;; Delete only 1, when 1 available:
  53   (sgml-with-content
  54    "<br />"
  55    (sgml-delete-tag 1)
  56    (should (string= "" (buffer-string))))
  57   ;; Delete from position on whitespaces before tag:
  58   (sgml-with-content
  59    " \t\n<br />"
  60    (sgml-delete-tag 1)
  61    (should (string= "" (buffer-string))))
  62   ;; Delete from position on tag:
  63   (sgml-with-content
  64    "<br />"
  65    (goto-char 3)
  66    (sgml-delete-tag 1)
  67    (should (string= "" (buffer-string))))
  68   ;; Delete one by one:
  69   (sgml-with-content
  70    "<h1><p>You know nothing, Jon Snow.</p></h1>"
  71    (sgml-delete-tag 1)
  72    (should (string= "<p>You know nothing, Jon Snow.</p>" (buffer-string)))
  73    (sgml-delete-tag 1)
  74    (should (string= "You know nothing, Jon Snow." (buffer-string))))
  75   ;; Delete 2 at a time, when 2 available:
  76   (sgml-with-content
  77    "<h1><p>You know nothing, Jon Snow.</p></h1>"
  78    (sgml-delete-tag 2)
  79    (should (string= "You know nothing, Jon Snow." (buffer-string)))))
  80
  81 (ert-deftest sgml-delete-tag-should-delete-unclosed-tag ()
  82   (sgml-with-content
  83    "<ul><li>Keep your stones connected.</ul>"
  84    (goto-char 5)                   ; position on "li" tag
  85    (sgml-delete-tag 1)
  86    (should (string= "<ul>Keep your stones connected.</ul>" (buffer-string)))))
  87
  88 (ert-deftest sgml-delete-tag-should-signal-error-for-malformed-tags ()
  89   (let ((content "<h1><h2>Drakaris!</h1></h2>"))
  90     ;; Delete outside tag:
  91     (sgml-with-content
  92      content
  93      (sgml-delete-tag 1)
  94      (should (string= "<h2>Drakaris!</h2>" (buffer-string))))
  95     ;; Delete inner tag:
  96     (sgml-with-content
  97      content
  98      (goto-char 5)                   ; position the inner tag
  99      (sgml-delete-tag 1)
 100      (should (string= "<h1>Drakaris!</h1>" (buffer-string))))))
 101
 102 (ert-deftest sgml-delete-tag-should-signal-error-when-deleting-too-much ()
 103   (let ((content "<emph>Drakaris!</emph>"))
 104     ;; No tags to delete:
 105     (sgml-with-content
 106      "Drakaris!"
 107      (should-error (sgml-delete-tag 1) :type 'error)
 108      (should (string= "Drakaris!" (buffer-string))))
 109     ;; Trying to delete 2 tags, when only 1 available:
 110     (sgml-with-content
 111      content
 112      (should-error (sgml-delete-tag 2) :type 'error)
 113      (should (string= "Drakaris!" (buffer-string))))
 114     ;; Trying to delete a tag, but not on/before a tag:
 115     (sgml-with-content
 116      content
 117      (goto-char 7)                     ; D in Drakaris
 118      (should-error (sgml-delete-tag 1) :type 'error)
 119      (should (string= content (buffer-string))))
 120     ;; Trying to delete a tag from position outside tag:
 121     (sgml-with-content
 122      content
 123      (goto-char (point-max))
 124      (should-error (sgml-delete-tag 1) :type 'error)
 125      (should (string= content (buffer-string))))))
 126
 127 (ert-deftest sgml-delete-tag-bug-8203-should-not-delete-apostrophe ()
 128   :expected-result :failed
 129   (sgml-with-content
 130    "<title>Winter is comin'</title>"
 131    (sgml-delete-tag 1)
 132    (should (string= "Winter is comin'" (buffer-string)))))
 133
 134 (provide 'sgml-mode-tests)
 135 ;;; sgml-mode-tests.el ends here