;;; test-org.el --- tests for org.el
;; Copyright (c)  David Maus
;; Authors: David Maus
;; This file is not part of GNU Emacs.
;; 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 .
;; Template test file for Org tests
;;; Code:
(eval-and-compile (require 'cl-lib))
;;; Comments
(ert-deftest test-org/toggle-comment ()
  "Test `org-toggle-comment' specifications."
  ;; Simple headline.
  (should
   (equal "* Test"
	  (org-test-with-temp-text "* COMMENT Test"
	    (org-toggle-comment)
	    (buffer-string))))
  (should
   (equal "* COMMENT Test"
	  (org-test-with-temp-text "* Test"
	    (org-toggle-comment)
	    (buffer-string))))
  ;; Headline with a regular keyword.
  (should
   (equal "* TODO Test"
	  (org-test-with-temp-text "* TODO COMMENT Test"
	    (org-toggle-comment)
	    (buffer-string))))
  (should
   (equal "* TODO COMMENT Test"
	  (org-test-with-temp-text "* TODO Test"
	    (org-toggle-comment)
	    (buffer-string))))
  ;; Empty headline.
  (should
   (equal "* "
	  (org-test-with-temp-text "* COMMENT"
	    (org-toggle-comment)
	    (buffer-string))))
  (should
   (equal "* COMMENT"
	  (org-test-with-temp-text "* "
	    (org-toggle-comment)
	    (buffer-string))))
  ;; Headline with a single keyword.
  (should
   (equal "* TODO "
	  (org-test-with-temp-text "* TODO COMMENT"
	    (org-toggle-comment)
	    (buffer-string))))
  (should
   (equal "* TODO COMMENT"
	  (org-test-with-temp-text "* TODO"
	    (org-toggle-comment)
	    (buffer-string))))
  ;; Headline with a keyword, a priority cookie and contents.
  (should
   (equal "* TODO [#A] Headline"
	  (org-test-with-temp-text "* TODO [#A] COMMENT Headline"
	    (org-toggle-comment)
	    (buffer-string))))
  (should
   (equal "* TODO [#A] COMMENT Headline"
	  (org-test-with-temp-text "* TODO [#A] Headline"
	    (org-toggle-comment)
	    (buffer-string)))))
(ert-deftest test-org/comment-dwim ()
  "Test `comment-dwim' behaviour in an Org buffer."
  ;; No region selected, no comment on current line and line not
  ;; empty: insert comment on line above.
  (should
   (equal "# \nComment"
	  (org-test-with-temp-text "Comment"
	    (call-interactively #'org-comment-dwim)
	    (buffer-string))))
  ;; No region selected, no comment on current line and line empty:
  ;; insert comment on this line.
  (should
   (equal "# \nParagraph"
	  (org-test-with-temp-text "\nParagraph"
	    (call-interactively #'org-comment-dwim)
	    (buffer-string))))
  ;; No region selected, and a comment on this line: indent it.
  (should
   (equal "* Headline\n  # Comment"
	  (org-test-with-temp-text "* Headline\n# Comment"
	    (let ((org-adapt-indentation t))
	      (call-interactively #'org-comment-dwim))
	    (buffer-string))))
  ;; Also recognize single # at column 0 as comments.
  (should
   (equal "# Comment"
	  (org-test-with-temp-text "# Comment"
	    (call-interactively #'org-comment-dwim)
	    (buffer-string))))
  ;; Region selected and only comments and blank lines within it:
  ;; un-comment all commented lines.
  (should
   (equal "Comment 1\n\nComment 2"
	  (org-test-with-temp-text "# Comment 1\n\n# Comment 2"
	    (transient-mark-mode 1)
	    (push-mark (point) t t)
	    (goto-char (point-max))
	    (call-interactively #'org-comment-dwim)
	    (buffer-string))))
  ;; Region selected without comments: comment all lines if
  ;; `comment-empty-lines' is non-nil, only non-blank lines otherwise.
  (should
   (equal "# Comment 1\n\n# Comment 2"
	  (org-test-with-temp-text "Comment 1\n\nComment 2"
	    (transient-mark-mode 1)
	    (push-mark (point) t t)
	    (goto-char (point-max))
	    (let ((comment-empty-lines nil))
	      (call-interactively #'org-comment-dwim))
	    (buffer-string))))
  (should
   (equal "# Comment 1\n# \n# Comment 2"
	  (org-test-with-temp-text "Comment 1\n\nComment 2"
	    (transient-mark-mode 1)
	    (push-mark (point) t t)
	    (goto-char (point-max))
	    (let ((comment-empty-lines t))
	      (call-interactively #'org-comment-dwim))
	    (buffer-string))))
  ;; In front of a keyword without region, insert a new comment.
  (should
   (equal "# \n#+KEYWORD: value"
	  (org-test-with-temp-text "#+KEYWORD: value"
	    (call-interactively #'org-comment-dwim)
	    (buffer-string))))
  ;; Comment a heading
  (should
   (equal "* COMMENT Test"
	  (org-test-with-temp-text "* Test"
	    (call-interactively #'org-comment-dwim)
	    (buffer-string))))
  ;; In a source block, use appropriate syntax.
  (should
   (equal "  ;; "
	  (org-test-with-temp-text "#+BEGIN_SRC emacs-lisp\n\n#+END_SRC"
	    (let ((org-edit-src-content-indentation 2))
	      (call-interactively #'org-comment-dwim))
	    (buffer-substring-no-properties (line-beginning-position)
					    (point)))))
  (should
   (equal "#+BEGIN_SRC emacs-lisp\n  ;; a\n  ;; b\n#+END_SRC"
	  (org-test-with-temp-text
	      "#+BEGIN_SRC emacs-lisp\na\nb\n#+END_SRC"
	    (transient-mark-mode 1)
	    (push-mark (point) t t)
	    (forward-line 2)
	    (let ((org-edit-src-content-indentation 2))
	      (call-interactively #'org-comment-dwim))
	    (buffer-string)))))
;;; Date and time analysis
(ert-deftest test-org/org-read-date ()
  "Test `org-read-date' specifications."
  ;; Parse ISO date with abbreviated year and month.
  (should (equal "2012-03-29 16:40"
		 (let ((org-time-was-given t))
		   (org-read-date t nil "12-3-29 16:40"))))
  ;; Parse Europeans dates.
  (should (equal "2012-03-29 16:40"
		 (let ((org-time-was-given t))
		   (org-read-date t nil "29.03.2012 16:40"))))
  ;; Parse Europeans dates without year.
  (should (string-match "2[0-9]\\{3\\}-03-29 16:40"
			(let ((org-time-was-given t))
			  (org-read-date t nil "29.03. 16:40"))))
  ;; Relative date applied to current time if there is single
  ;; plus/minus, or to default date when there are two of them.
  (should
   (equal
    "2015-03-04"
    (org-test-at-time "2014-03-04"
      (org-read-date
       t nil "+1y" nil
       (apply #'encode-time (org-parse-time-string "2012-03-29"))))))
  (should
   (equal
    "2013-03-29"
    (org-test-at-time "2014-03-04"
      (org-read-date
       t nil "++1y" nil
       (apply #'encode-time (org-parse-time-string "2012-03-29"))))))
  ;; When `org-read-date-prefer-future' is non-nil, prefer future
  ;; dates (relatively to now) when incomplete.  Otherwise, use
  ;; default date.
  (should
   (equal
    "2014-04-01"
    (org-test-at-time "2014-03-04"
      (let ((org-read-date-prefer-future t))
	(org-read-date t nil "1")))))
  (should
   (equal
    "2013-03-04"
    (org-test-at-time "2012-03-29"
      (let ((org-read-date-prefer-future t))
	(org-read-date t nil "3-4")))))
  (should
   (equal
    "2012-03-04"
    (org-test-at-time "2012-03-29"
      (let ((org-read-date-prefer-future nil))
	(org-read-date t nil "3-4")))))
  ;; When set to `org-read-date-prefer-future' is set to `time', read
  ;; day is moved to tomorrow if specified hour is before current
  ;; time.  However, it only happens in no other part of the date is
  ;; specified.
  (should
   (equal
    "2012-03-30"
    (org-test-at-time "2012-03-29 16:40"
      (let ((org-read-date-prefer-future 'time))
	(org-read-date t nil "00:40" nil)))))
  (should-not
   (equal
    "2012-03-30"
    (org-test-at-time "2012-03-29 16:40"
      (let ((org-read-date-prefer-future 'time))
	(org-read-date t nil "29 00:40" nil)))))
  ;; Caveat: `org-read-date-prefer-future' always refers to current
  ;; time, not default time, when they differ.
  (should
   (equal
    "2014-04-01"
    (org-test-at-time "2014-03-04"
      (let ((org-read-date-prefer-future t))
	(org-read-date
	 t nil "1" nil
	 (apply #'encode-time (org-parse-time-string "2012-03-29")))))))
  (should
   (equal
    "2014-03-25"
    (org-test-at-time "2014-03-04"
      (let ((org-read-date-prefer-future t))
	(org-read-date
	 t nil "25" nil
	 (apply #'encode-time (org-parse-time-string "2012-03-29"))))))))
(ert-deftest test-org/org-parse-time-string ()
  "Test `org-parse-time-string'."
  (should (equal (org-parse-time-string "2012-03-29 16:40")
		 '(0 40 16 29 3 2012 nil nil nil)))
  (should (equal (org-parse-time-string "[2012-03-29 16:40]")
		 '(0 40 16 29 3 2012 nil nil nil)))
  (should (equal (org-parse-time-string "<2012-03-29 16:40>")
		 '(0 40 16 29 3 2012 nil nil nil)))
  (should (equal (org-parse-time-string "<2012-03-29>")
		 '(0 0 0 29 3 2012 nil nil nil)))
  (should (equal (org-parse-time-string "<2012-03-29>" t)
		 '(0 nil nil 29 3 2012 nil nil nil))))
(ert-deftest test-org/closest-date ()
  "Test `org-closest-date' specifications."
  (require 'calendar)
  ;; Time stamps without a repeater are returned unchanged.
  (should
   (equal
    '(3 29 2012)
    (calendar-gregorian-from-absolute
     (org-closest-date "<2012-03-29>" "<2014-03-04>" nil))))
  ;; Time stamps with a null repeater are returned unchanged.
  (should
   (equal
    '(3 29 2012)
    (calendar-gregorian-from-absolute
     (org-closest-date "<2012-03-29 +0d>" "<2014-03-04>" nil))))
  ;; if PREFER is set to `past' always return a date before, or equal
  ;; to CURRENT.
  (should
   (equal
    '(3 1 2014)
    (calendar-gregorian-from-absolute
     (org-closest-date "<2012-03-29 +1m>" "<2014-03-04>" 'past))))
  (should
   (equal
    '(3 4 2014)
    (calendar-gregorian-from-absolute
     (org-closest-date "<2012-03-04 +1m>" "<2014-03-04>" 'past))))
  ;; if PREFER is set to `future' always return a date before, or equal
  ;; to CURRENT.
  (should
   (equal
    '(3 29 2014)
    (calendar-gregorian-from-absolute
     (org-closest-date "<2012-03-29 +1m>" "<2014-03-04>" 'future))))
  (should
   (equal
    '(3 4 2014)
    (calendar-gregorian-from-absolute
     (org-closest-date "<2012-03-04 +1m>" "<2014-03-04>" 'future))))
  ;; If PREFER is neither `past' nor `future', select closest date.
  (should
   (equal
    '(3 1 2014)
    (calendar-gregorian-from-absolute
     (org-closest-date "<2012-03-29 +1m>" "<2014-03-04>" nil))))
  (should
   (equal
    '(5 4 2014)
    (calendar-gregorian-from-absolute
     (org-closest-date "<2012-03-04 +1m>" "<2014-04-28>" nil))))
  ;; Test "day" repeater.
  (should
   (equal '(3 8 2014)
	  (calendar-gregorian-from-absolute
	   (org-closest-date "<2014-03-04 +2d>" "<2014-03-09>" 'past))))
  (should
   (equal '(3 10 2014)
	  (calendar-gregorian-from-absolute
	   (org-closest-date "<2014-03-04 +2d>" "<2014-03-09>" 'future))))
  ;; Test "month" repeater.
  (should
   (equal '(1 5 2015)
	  (calendar-gregorian-from-absolute
	   (org-closest-date "<2014-03-05 +2m>" "<2015-02-04>" 'past))))
  (should
   (equal '(3 29 2014)
	  (calendar-gregorian-from-absolute
	   (org-closest-date "<2012-03-29 +2m>" "<2014-03-04>" 'future))))
  ;; Test "year" repeater.
  (should
   (equal '(3 5 2014)
	  (calendar-gregorian-from-absolute
	   (org-closest-date "<2014-03-05 +2y>" "<2015-02-04>" 'past))))
  (should
   (equal '(3 29 2014)
	  (calendar-gregorian-from-absolute
	   (org-closest-date "<2012-03-29 +2y>" "<2014-03-04>" 'future)))))
(ert-deftest test-org/deadline-close-p ()
  "Test `org-deadline-close-p' specifications."
  (org-test-at-time "2016-06-03 Fri 01:43"
    ;; Timestamps are close if they are within `ndays' of lead time.
    (org-test-with-temp-text "* Heading"
      (should (org-deadline-close-p "2016-06-03 Fri" 0))
      (should (org-deadline-close-p "2016-06-02 Thu" 0))
      (should-not (org-deadline-close-p "2016-06-04 Sat" 0))
      (should (org-deadline-close-p "2016-06-04 Sat" 1))
      (should (org-deadline-close-p "2016-06-03 Fri 12:00" 0)))
    ;; Read `ndays' from timestamp if argument not given.
    (org-test-with-temp-text "* H"
      (should (org-deadline-close-p "2016-06-04 Sat -1d"))
      (should-not (org-deadline-close-p "2016-06-04 Sat -0d"))
      (should (org-deadline-close-p "2016-06-10 Fri -1w"))
      (should-not (org-deadline-close-p "2016-06-11 Sat -1w")))
    ;; Prefer `ndays' argument over lead time in timestamp.
    (org-test-with-temp-text "* H"
      (should (org-deadline-close-p "2016-06-04 Sat -0d" 1))
      (should-not (org-deadline-close-p "2016-06-04 Sat -0d" 0)))
    ;; Completed tasks are never close.
    (let ((org-todo-keywords '(("TODO" "|" "DONE"))))
      (org-test-with-temp-text "* TODO Heading"
	(should (org-deadline-close-p "2016-06-03")))
      (org-test-with-temp-text "* DONE Heading"
	(should-not (org-deadline-close-p "2016-06-03"))))))
;;; Drawers
(ert-deftest test-org/at-property-p ()
  "Test `org-at-property-p' specifications."
  (should
   (equal 't
	  (org-test-with-temp-text "* H\n:PROPERTIES:\n:PROP: t\n:END:\n"
	    (org-at-property-p))))
  (should
   (equal 't
	  (org-test-with-temp-text ":PROPERTIES:\n:PROP: t\n:END:\n"
	    (org-at-property-p)))))
(ert-deftest test-org/at-property-block-p ()
  "Test `org-at-property-block-p' specifications."
  (should
   (equal 't
	  (org-test-with-temp-text "* H\n:PROPERTIES:\n:PROP: t\n:END:\n"
	    (org-at-property-block-p))))
  (should
   (equal 't
	  (org-test-with-temp-text ":PROPERTIES:\n:PROP: t\n:END:\n"
	    (org-at-property-block-p))))
  ;; The function only returns t if point is at the first line of a
  ;; property block.
  (should-not
   (equal 't
	  (org-test-with-temp-text ":PROPERTIES:\n:PROP: t\n:END:\n"
	    (org-at-property-block-p)))))
(ert-deftest test-org/get-property-block ()
  "Test `org-get-property-block' specifications."
  (should
   (equal '(14 . 14)
	  (org-test-with-temp-text ":PROPERTIES:\n:END:\n* H\n"
	    (org-get-property-block))))
  (should
   (equal '(14 . 14)
	  (org-test-with-temp-text ":PROPERTIES:\n:END:\n"
	    (org-get-property-block))))
  ;; Comments above a document property block is ok.
  (should
   (equal '(18 . 18)
	  (org-test-with-temp-text "# C\n:PROPERTIES:\n:END:\n"
	    (org-get-property-block))))
  ;; Keywords above a document property block is ok.
  (should
   (equal '(22 . 22)
	  (org-test-with-temp-text "# C\n# C\n:PROPERTIES:\n:END:\n"
	    (org-get-property-block))))
  ;; Comments and keywords are allowed before a document property block.
  (should
   (equal '(18 . 27)
	  (org-test-with-temp-text "# C\n:PROPERTIES:\n:KEY: V:\n:END:\n"
	    (org-get-property-block))))
  ;; A document property block will not be valid if there are lines
  ;; with whitespace above it
  (should-not
   (org-test-with-temp-text "\n:PROPERTIES:\n:END:\n"
     (org-get-property-block)))
  (should
   (equal '(18 . 18)
	  (org-test-with-temp-text "* H\n:PROPERTIES:\n:END:\n"
	    (org-get-property-block))))
  (should
   (equal "* H\n:PROPERTIES:\n:END:\n"
	  (org-test-with-temp-text "* H"
	    (let ((org-adapt-indentation nil))
	      (org-get-property-block nil 'force))
	    (buffer-string))))
  (should
   (equal ":PROPERTIES:\n:END:\n"
	  (org-test-with-temp-text ""
	    (org-get-property-block nil 'force)
	    (buffer-string))))
  (should
   (equal "* H1\n  :PROPERTIES:\n  :END:\n* H2"
	  (org-test-with-temp-text "* H1\n* H2"
	    (let ((org-adapt-indentation t))
	      (org-get-property-block nil 'force))
	    (buffer-string)))))
(ert-deftest test-org/insert-property-drawer ()
  "Test `org-insert-property-drawer' specifications."
  ;; Insert drawer in empty buffer
  (should
   (equal ":PROPERTIES:\n:END:\n"
	  (org-test-with-temp-text ""
	    (let ((org-adapt-indentation nil)) (org-insert-property-drawer))
	    (buffer-string))))
  ;; Insert drawer in document header with existing comment and
  ;; keyword.
  (should
   (equal "# C\n:PROPERTIES:\n:END:\n#+TITLE: T"
	  (org-test-with-temp-text "# C\n#+TITLE: T"
	    (let ((org-adapt-indentation nil)) (org-insert-property-drawer))
	    (buffer-string))))
  ;; Insert drawer in document header with existing keyword.
  (should
   (equal ":PROPERTIES:\n:END:\n#+TITLE: T"
	  (org-test-with-temp-text "#+TITLE: T"
	    (let ((org-adapt-indentation nil)) (org-insert-property-drawer))
	    (buffer-string))))
  (should
   (equal ":PROPERTIES:\n:END:"
	  (org-test-with-temp-text ":PROPERTIES:\n:END:"
	    (let ((org-adapt-indentation nil)) (org-insert-property-drawer))
	    (buffer-string))))
  ;; Insert drawer in document header with one existing heading in buffer.
  (should
   (equal ":PROPERTIES:\n:END:\n\n* T\n"
	  (org-test-with-temp-text "\n* T\n"
	    (let ((org-adapt-indentation nil)) (org-insert-property-drawer))
	    (buffer-string))))
  ;; Insert drawer right after headline if there is no planning line,
  ;; or after it otherwise.
  (should
   (equal "* H\n:PROPERTIES:\n:END:\nParagraph"
	  (org-test-with-temp-text "* H\nParagraph"
	    (let ((org-adapt-indentation nil)) (org-insert-property-drawer))
	    (buffer-string))))
  (should
   (equal "* H\nDEADLINE: <2014-03-04 tue.>\n:PROPERTIES:\n:END:\nParagraph"
	  (org-test-with-temp-text
	      "* H\nDEADLINE: <2014-03-04 tue.>\nParagraph"
	    (let ((org-adapt-indentation nil)) (org-insert-property-drawer))
	    (buffer-string))))
  ;; Indent inserted drawer.
  (should
   (equal "* H\n  :PROPERTIES:\n  :END:\nParagraph"
	  (org-test-with-temp-text "* H\nParagraph"
	    (let ((org-adapt-indentation t)) (org-insert-property-drawer))
	    (buffer-string))))
  ;; Handle insertion at eob.
  (should
   (equal "* H\n:PROPERTIES:\n:END:\n"
	  (org-test-with-temp-text "* H"
	    (let ((org-adapt-indentation nil)) (org-insert-property-drawer))
	    (buffer-string))))
  ;; Skip inlinetasks before point.
  (when (featurep 'org-inlinetask)
    (should
     (equal "* H\n:PROPERTIES:\n:END:\n*************** I\n*************** END\nP"
	    (org-test-with-temp-text
		"* H\n*************** I\n*************** END\nP"
	      (let ((org-adapt-indentation nil)
		    (org-inlinetask-min-level 15))
		(org-insert-property-drawer))
	      (buffer-string)))))
  ;; Correctly set drawer in an inlinetask.
  (when (featurep 'org-inlinetask)
    (should
     (equal "* H\n*************** I\n:PROPERTIES:\n:END:\nP\n*************** END"
	    (org-test-with-temp-text
		"* H\n*************** I\nP\n*************** END"
	      (let ((org-adapt-indentation nil)
		    (org-inlinetask-min-level 15))
		(org-insert-property-drawer))
	      (buffer-string))))))
;;; Filling
(ert-deftest test-org/fill-element ()
  "Test `org-fill-element' specifications."
  ;; At an Org table, align it.
  (should
   (equal "| a |\n"
	  (org-test-with-temp-text "|a|"
	    (org-fill-element)
	    (buffer-string))))
  (should
   (equal "#+name: table\n| a |\n"
	  (org-test-with-temp-text "#+name: table\n| a |\n"
	    (org-fill-element)
	    (buffer-string))))
  ;; At a paragraph, preserve line breaks.
  (org-test-with-temp-text "some \\\\\nlong\ntext"
    (let ((fill-column 20))
      (org-fill-element)
      (should (equal (buffer-string) "some \\\\\nlong text"))))
  ;; Correctly fill a paragraph when point is at its very end.
  (should
   (equal "A B"
	  (org-test-with-temp-text "A\nB"
	    (let ((fill-column 20))
	      (goto-char (point-max))
	      (org-fill-element)
	      (buffer-string)))))
  ;; Correctly fill the last paragraph of a greater element.
  (should
   (equal "#+BEGIN_CENTER\n- 012345\n  789\n#+END_CENTER"
	  (org-test-with-temp-text "#+BEGIN_CENTER\n- 012345 789\n#+END_CENTER"
	    (let ((fill-column 8))
	      (forward-line)
	      (end-of-line)
	      (org-fill-element)
	      (buffer-string)))))
  ;; Correctly fill an element in a narrowed buffer.
  (should
   (equal "01234\n6"
	  (org-test-with-temp-text "01234 6789"
	    (let ((fill-column 5))
	      (narrow-to-region 1 8)
	      (org-fill-element)
	      (buffer-string)))))
  ;; Handle `adaptive-fill-regexp' in paragraphs.
  (should
   (equal "> a b"
	  (org-test-with-temp-text "> a\n> b"
	    (let ((fill-column 5)
		  (adaptive-fill-regexp "[ \t]*>+[ \t]*"))
	      (org-fill-element)
	      (buffer-string)))))
  ;; Special case: Fill first paragraph when point is at an item or
  ;; a plain-list or a footnote reference.
  (should
   (equal "- A B"
	  (org-test-with-temp-text "- A\n  B"
	    (let ((fill-column 20))
	      (org-fill-element)
	      (buffer-string)))))
  (should
   (equal "[fn:1] A B"
	  (org-test-with-temp-text "[fn:1] A\nB"
	    (let ((fill-column 20))
	      (org-fill-element)
	      (buffer-string)))))
  (org-test-with-temp-text "#+BEGIN_VERSE\nSome \\\\\nlong\ntext\n#+END_VERSE"
    (let ((fill-column 20))
      (org-fill-element)
      (should (equal (buffer-string)
		     "#+BEGIN_VERSE\nSome \\\\\nlong\ntext\n#+END_VERSE"))))
  ;; Fill contents of `comment-block' elements.
  (should
   (equal
    (org-test-with-temp-text "#+BEGIN_COMMENT\nSome\ntext\n#+END_COMMENT"
      (let ((fill-column 20))
	(forward-line)
	(org-fill-element)
	(buffer-string)))
    "#+BEGIN_COMMENT\nSome text\n#+END_COMMENT"))
  ;; Fill `comment' elements.
  (should
   (equal "  # A B"
	  (org-test-with-temp-text "  # A\n  # B"
	    (let ((fill-column 20))
	      (org-fill-element)
	      (buffer-string)))))
  ;; Do not mix consecutive comments when filling one of them.
  (should
   (equal "# A B\n\n# C"
	  (org-test-with-temp-text "# A\n# B\n\n# C"
	    (let ((fill-column 20))
	      (org-fill-element)
	      (buffer-string)))))
  ;; Use commented empty lines as separators when filling comments.
  (should
   (equal "# A B\n#\n# C"
	  (org-test-with-temp-text "# A\n# B\n#\n# C"
	    (let ((fill-column 20))
	      (org-fill-element)
	      (buffer-string)))))
  ;; Handle `adaptive-fill-regexp' in comments.
  (should
   (equal "# > a b"
	  (org-test-with-temp-text "# > a\n# > b"
	    (let ((fill-column 20)
		  (adaptive-fill-regexp "[ \t]*>+[ \t]*"))
	      (org-fill-element)
	      (buffer-string)))))
  ;; Do nothing at affiliated keywords.
  (should
   (equal "#+NAME: para\nSome\ntext."
	  (org-test-with-temp-text "#+NAME: para\nSome\ntext."
	    (let ((fill-column 20))
	      (org-fill-element)
	      (buffer-string)))))
  ;; Do not move point after table when filling a table.
  (should-not
   (org-test-with-temp-text "| a | b |\n| c | d |\n"
     (forward-char)
     (org-fill-element)
     (eobp)))
  ;; Do not fill "n" macro, with or without arguments, followed by
  ;; a dot or a closing parenthesis since it could be confused with
  ;; a numbered bullet.
  (should-not
   (equal "123456789\n{{{n}}}."
	  (org-test-with-temp-text "123456789 {{{n}}}."
	    (let ((fill-column 10))
	      (org-fill-element)
	      (buffer-string)))))
  (should-not
   (equal "123456789\n{{{n}}}\)"
	  (org-test-with-temp-text "123456789 {{{n}}}\)"
	    (let ((fill-column 10))
	      (org-fill-element)
	      (buffer-string)))))
  (should-not
   (equal "123456789\n{{{n()}}}."
	  (org-test-with-temp-text "123456789 {{{n()}}}."
	    (let ((fill-column 10))
	      (org-fill-element)
	      (buffer-string)))))
  (should-not
   (equal "123456789\n{{{n(counter)}}}."
	  (org-test-with-temp-text "123456789 {{{n(counter)}}}."
	    (let ((fill-column 10))
	      (org-fill-element)
	      (buffer-string))))))
(ert-deftest test-org/auto-fill-function ()
  "Test auto-filling features."
  ;; Auto fill paragraph.
  (should
   (equal "12345\n7890"
	  (org-test-with-temp-text "12345 7890"
	    (let ((fill-column 5))
	      (end-of-line)
	      (org-auto-fill-function)
	      (buffer-string)))))
  ;; Auto fill first paragraph in an item.
  (should
   (equal "- 12345\n  7890"
	  (org-test-with-temp-text "- 12345 7890"
	    (let ((fill-column 7))
	      (end-of-line)
	      (org-auto-fill-function)
	      (buffer-string)))))
  ;; Auto fill paragraph when `adaptive-fill-regexp' matches.
  (should
   (equal "> 12345\n  7890"
	  (org-test-with-temp-text "> 12345 7890"
	    (let ((fill-column 10)
		  (adaptive-fill-regexp "[ \t]*>+[ \t]*")
		  (adaptive-fill-first-line-regexp "\\`[ 	]*\\'"))
	      (end-of-line)
	      (org-auto-fill-function)
	      (buffer-string)))))
  (should
   (equal "> 12345\n> 12345\n> 7890"
	  (org-test-with-temp-text "> 12345\n> 12345 7890"
	    (let ((fill-column 10)
		  (adaptive-fill-regexp "[ \t]*>+[ \t]*"))
	      (goto-char (point-max))
	      (org-auto-fill-function)
	      (buffer-string)))))
  (should-not
   (equal " 12345\n *12345\n *12345"
	  (org-test-with-temp-text " 12345\n *12345 12345"
	    (let ((fill-column 10)
		  (adaptive-fill-regexp "[ \t]*>+[ \t]*"))
	      (goto-char (point-max))
	      (org-auto-fill-function)
	      (buffer-string)))))
  ;; Auto fill comments.
  (should
   (equal "  # 12345\n  # 7890"
	  (org-test-with-temp-text "  # 12345 7890"
	    (let ((fill-column 10))
	      (end-of-line)
	      (org-auto-fill-function)
	      (buffer-string)))))
  ;; A hash within a line isn't a comment.
  (should-not
   (equal "12345 # 7890\n# 1"
	  (org-test-with-temp-text "12345 # 7890 1"
	    (let ((fill-column 12))
	      (end-of-line)
	      (org-auto-fill-function)
	      (buffer-string)))))
  ;; Correctly interpret empty prefix.
  (should-not
   (equal "# a\n# b\nRegular\n# paragraph"
	  (org-test-with-temp-text "# a\n# b\nRegular paragraph"
	    (let ((fill-column 12))
	      (end-of-line 3)
	      (org-auto-fill-function)
	      (buffer-string)))))
  ;; Comment block: auto fill contents.
  (should
   (equal "#+BEGIN_COMMENT\n12345\n7890\n#+END_COMMENT"
	  (org-test-with-temp-text "#+BEGIN_COMMENT\n12345 7890\n#+END_COMMENT"
	    (let ((fill-column 5))
	      (forward-line)
	      (end-of-line)
	      (org-auto-fill-function)
	      (buffer-string)))))
  (should
   (equal "#+BEGIN_COMMENT\n12345\n7890\n#+END_COMMENT"
	  (org-test-with-temp-text "#+BEGIN_COMMENT\n12345 7890\n#+END_COMMENT"
	    (let ((fill-column 5))
	      (forward-line)
	      (end-of-line)
	      (org-auto-fill-function)
	      (buffer-string)))))
  ;; Do not fill if a new item could be created.
  (should-not
   (equal "12345\n- 90"
	  (org-test-with-temp-text "12345 - 90"
	    (let ((fill-column 5))
	      (end-of-line)
	      (org-auto-fill-function)
	      (buffer-string)))))
  ;; Do not fill if a line break could be introduced.
  (should-not
   (equal "123\\\\\n7890"
	  (org-test-with-temp-text "123\\\\ 7890"
	    (let ((fill-column 6))
	      (end-of-line)
	      (org-auto-fill-function)
	      (buffer-string)))))
  ;; Do not fill affiliated keywords.
  (should-not
   (equal "#+ATTR_LATEX: ABC\nDEFGHIJKL"
	  (org-test-with-temp-text "#+ATTR_LATEX: ABC DEFGHIJKL"
	    (let ((fill-column 20))
	      (end-of-line)
	      (org-auto-fill-function)
	      (buffer-string))))))
;;; Indentation
(ert-deftest test-org/indent-line ()
  "Test `org-indent-line' specifications."
  ;; Do not indent diary sexps, footnote definitions or headlines.
  (should
   (zerop
    (org-test-with-temp-text "%%(org-calendar-holiday)"
      (org-indent-line)
      (org-get-indentation))))
  (should
   (zerop
    (org-test-with-temp-text "[fn:1] fn"
      (let ((org-adapt-indentation t)) (org-indent-line))
      (org-get-indentation))))
  (should
   (zerop
    (org-test-with-temp-text "* H"
      (org-indent-line)
      (org-get-indentation))))
  ;; Do not indent before first headline.
  (should
   (zerop
    (org-test-with-temp-text ""
      (org-indent-line)
      (org-get-indentation))))
  ;; Indent according to headline level otherwise, unless
  ;; `org-adapt-indentation' is nil.
  (should
   (= 2
      (org-test-with-temp-text "* H\nA"
	(let ((org-adapt-indentation t)) (org-indent-line))
	(org-get-indentation))))
  (should
   (= 2
      (org-test-with-temp-text "* H\n\nA"
	(let ((org-adapt-indentation t)) (org-indent-line))
	(org-get-indentation))))
  (should
   (zerop
    (org-test-with-temp-text "* H\nA"
      (let ((org-adapt-indentation nil)) (org-indent-line))
      (org-get-indentation))))
  ;; Indenting preserves point position.
  (should
   (org-test-with-temp-text "* H\nAB"
     (let ((org-adapt-indentation t)) (org-indent-line))
     (looking-at "B")))
  ;; Do not change indentation at an item or a LaTeX environment.
  (should
   (= 1
      (org-test-with-temp-text "* H\n - A"
	(let ((org-adapt-indentation t)) (org-indent-line))
	(org-get-indentation))))
  (should
   (= 1
      (org-test-with-temp-text
	  "\\begin{equation}\n 1+1=2\n\\end{equation}"
	(org-indent-line)
	(org-get-indentation))))
  ;; On blank lines at the end of a list, indent like last element
  ;; within it if the line is still in the list.  If the last element
  ;; is an item, indent like its contents.  Otherwise, indent like the
  ;; whole list.
  (should
   (= 4
      (org-test-with-temp-text "* H\n- A\n  - AA\n"
	(let ((org-adapt-indentation t)) (org-indent-line))
	(org-get-indentation))))
  (should
   (= 4
      (org-test-with-temp-text "* H\n- A\n  -\n\n"
	(let ((org-adapt-indentation t)) (org-indent-line))
	(org-get-indentation))))
  (should
   (zerop
    (org-test-with-temp-text "* H\n- A\n  - AA\n\n\n\n"
      (let ((org-adapt-indentation t)) (org-indent-line))
      (org-get-indentation))))
  (should
   (= 4
      (org-test-with-temp-text "* H\n- A\n  - \n"
	(let ((org-adapt-indentation t)) (org-indent-line))
	(org-get-indentation))))
  (should
   (= 4
      (org-test-with-temp-text
	  "* H\n  - \n    #+BEGIN_SRC emacs-lisp\n  t\n    #+END_SRC\n"
	(let ((org-adapt-indentation t)) (org-indent-line))
	(org-get-indentation))))
  (should
   (= 2
      (org-test-with-temp-text "- A\n  B\n\n"
	(let ((org-adapt-indentation nil)) (org-indent-line))
	(org-get-indentation))))
  (should
   (= 2
      (org-test-with-temp-text
	  "- A\n  \begin{cases}    1 + 1\n  \end{cases}\n\n"
	(let ((org-adapt-indentation nil)) (org-indent-line))
	(org-get-indentation))))
  ;; Likewise, on a blank line at the end of a footnote definition,
  ;; indent at column 0 if line belongs to the definition.  Otherwise,
  ;; indent like the definition itself.
  (should
   (zerop
    (org-test-with-temp-text "* H\n[fn:1] Definition\n"
      (let ((org-adapt-indentation t)) (org-indent-line))
      (org-get-indentation))))
  (should
   (zerop
    (org-test-with-temp-text "* H\n[fn:1] Definition\n\n\n\n"
      (let ((org-adapt-indentation t)) (org-indent-line))
      (org-get-indentation))))
  ;; After the end of the contents of a greater element, indent like
  ;; the beginning of the element.
  (should
   (= 1
      (org-test-with-temp-text
	  " #+BEGIN_CENTER\n  Contents\n#+END_CENTER"
	(org-indent-line)
	(org-get-indentation))))
  ;; On blank lines after a paragraph, indent like its last non-empty
  ;; line.
  (should
   (= 1
      (org-test-with-temp-text " Paragraph\n\n"
	(org-indent-line)
	(org-get-indentation))))
  ;; At the first line of an element, indent like previous element's
  ;; first line, ignoring footnotes definitions and inline tasks, or
  ;; according to parent.
  (should
   (= 2
      (org-test-with-temp-text "A\n\n  B\n\nC"
	(org-indent-line)
	(org-get-indentation))))
  (should
   (= 1
      (org-test-with-temp-text " A\n\n[fn:1] B\n\n\nC"
	(org-indent-line)
	(org-get-indentation))))
  (should
   (= 1
      (org-test-with-temp-text
	  " #+BEGIN_CENTER\n  Contents\n#+END_CENTER"
	(org-indent-line)
	(org-get-indentation))))
  ;; Within code part of a source block, use language major mode if
  ;; `org-src-tab-acts-natively' is non-nil.  Otherwise, indent
  ;; according to line above.
  (should
   (= 6
      (org-test-with-temp-text
	  "#+BEGIN_SRC emacs-lisp\n (and A\nB)\n#+END_SRC"
	(let ((org-src-tab-acts-natively t)
	      (org-edit-src-content-indentation 0))
	  (org-indent-line))
	(org-get-indentation))))
  (should
   (= 1
      (org-test-with-temp-text
	  "#+BEGIN_SRC emacs-lisp\n (and A\nB)\n#+END_SRC"
	(let ((org-src-tab-acts-natively nil)
	      (org-edit-src-content-indentation 0))
	  (org-indent-line))
	(org-get-indentation))))
  ;; Otherwise, indent like the first non-blank line above.
  (should
   (zerop
    (org-test-with-temp-text
	"#+BEGIN_CENTER\nline1\n\n  line2\n#+END_CENTER"
      (org-indent-line)
      (org-get-indentation))))
  ;; Align node properties according to `org-property-format'.  Handle
  ;; nicely empty values.
  (should
   (equal "* H\n:PROPERTIES:\n:key:      value\n:END:"
	  (org-test-with-temp-text
	      "* H\n:PROPERTIES:\n:key: value\n:END:"
	    (let ((org-property-format "%-10s %s")) (org-indent-line))
	    (buffer-string))))
  (should
   (equal "* H\n:PROPERTIES:\n:key:\n:END:"
	  (org-test-with-temp-text "* H\n:PROPERTIES:\n:key:\n:END:"
	    (let ((org-property-format "%-10s %s")) (org-indent-line))
	    (buffer-string)))))
(ert-deftest test-org/indent-region ()
  "Test `org-indent-region' specifications."
  ;; Indent paragraph.
  (should
   (equal "A\nB\nC"
	  (org-test-with-temp-text " A\nB\n  C"
	    (org-indent-region (point-min) (point-max))
	    (buffer-string))))
  ;; Indent greater elements along with their contents.
  (should
   (equal "#+BEGIN_CENTER\nA\nB\n#+END_CENTER"
	  (org-test-with-temp-text "#+BEGIN_CENTER\n A\n  B\n#+END_CENTER"
	    (org-indent-region (point-min) (point-max))
	    (buffer-string))))
  ;; Ignore contents of verse blocks.  Only indent block delimiters.
  (should
   (equal "#+BEGIN_VERSE\n A\n  B\n#+END_VERSE"
	  (org-test-with-temp-text "#+BEGIN_VERSE\n A\n  B\n#+END_VERSE"
	    (org-indent-region (point-min) (point-max))
	    (buffer-string))))
  (should
   (equal "#+BEGIN_VERSE\n  A\n   B\n#+END_VERSE"
	  (org-test-with-temp-text " #+BEGIN_VERSE\n  A\n   B\n #+END_VERSE"
	    (org-indent-region (point-min) (point-max))
	    (buffer-string))))
  ;; Indent example blocks as a single block, unless indentation
  ;; should be preserved.  In this case only indent the block markers.
  (should
   (equal "#+BEGIN_EXAMPLE\n A\n  B\n#+END_EXAMPLE"
	  (org-test-with-temp-text "#+BEGIN_EXAMPLE\n A\n  B\n#+END_EXAMPLE"
	    (org-indent-region (point-min) (point-max))
	    (buffer-string))))
  (should
   (equal "#+BEGIN_EXAMPLE\n A\n  B\n#+END_EXAMPLE"
	  (org-test-with-temp-text " #+BEGIN_EXAMPLE\n  A\n   B\n #+END_EXAMPLE"
	    (org-indent-region (point-min) (point-max))
	    (buffer-string))))
  (should
   (equal "#+BEGIN_EXAMPLE -i\n  A\n   B\n#+END_EXAMPLE"
	  (org-test-with-temp-text
	      " #+BEGIN_EXAMPLE -i\n  A\n   B\n #+END_EXAMPLE"
	    (org-indent-region (point-min) (point-max))
	    (buffer-string))))
  (should
   (equal "#+BEGIN_EXAMPLE\n  A\n   B\n#+END_EXAMPLE"
	  (org-test-with-temp-text
	      " #+BEGIN_EXAMPLE\n  A\n   B\n #+END_EXAMPLE"
	    (let ((org-src-preserve-indentation t))
	      (org-indent-region (point-min) (point-max)))
	    (buffer-string))))
  ;; Treat export blocks as a whole.
  (should
   (equal "#+BEGIN_EXPORT latex\n A\n  B\n#+END_EXPORT"
	  (org-test-with-temp-text "#+BEGIN_EXPORT latex\n A\n  B\n#+END_EXPORT"
	    (org-indent-region (point-min) (point-max))
	    (buffer-string))))
  (should
   (equal "#+BEGIN_EXPORT latex\n A\n  B\n#+END_EXPORT"
	  (org-test-with-temp-text
	      " #+BEGIN_EXPORT latex\n  A\n   B\n #+END_EXPORT"
	    (org-indent-region (point-min) (point-max))
	    (buffer-string))))
  ;; Indent according to mode if `org-src-tab-acts-natively' is
  ;; non-nil.  Otherwise, do not indent code at all.
  (should
   (equal "#+BEGIN_SRC emacs-lisp\n(and A\n     B)\n#+END_SRC"
	  (org-test-with-temp-text
	      "#+BEGIN_SRC emacs-lisp\n (and A\nB)\n#+END_SRC"
	    (let ((org-src-tab-acts-natively t)
		  (org-edit-src-content-indentation 0))
	      (org-indent-region (point-min) (point-max)))
	    (buffer-string))))
  (should
   (equal "#+BEGIN_SRC emacs-lisp\n (and A\nB)\n#+END_SRC"
	  (org-test-with-temp-text
	      "#+BEGIN_SRC emacs-lisp\n (and A\nB)\n#+END_SRC"
	    (let ((org-src-tab-acts-natively nil)
		  (org-edit-src-content-indentation 0))
	      (org-indent-region (point-min) (point-max)))
	    (buffer-string))))
  ;; Align node properties according to `org-property-format'.  Handle
  ;; nicely empty values.
  (should
   (equal "* H\n:PROPERTIES:\n:key:      value\n:END:"
	  (org-test-with-temp-text "* H\n:PROPERTIES:\n:key: value\n:END:"
	    (let ((org-property-format "%-10s %s")
		  (org-adapt-indentation nil))
	      (org-indent-region (point) (point-max)))
	    (buffer-string))))
  (should
   (equal "* H\n:PROPERTIES:\n:key:\n:END:"
	  (org-test-with-temp-text "* H\n:PROPERTIES:\n:key:\n:END:"
	    (let ((org-property-format "%-10s %s")
		  (org-adapt-indentation nil))
	      (org-indent-region (point) (point-max)))
	    (buffer-string))))
  ;; Indent plain lists.
  (should
   (equal "- A\n  B\n  - C\n\n    D"
	  (org-test-with-temp-text "- A\n   B\n  - C\n\n     D"
	    (org-indent-region (point-min) (point-max))
	    (buffer-string))))
  (should
   (equal "- A\n\n- B"
	  (org-test-with-temp-text " - A\n\n - B"
	    (org-indent-region (point-min) (point-max))
	    (buffer-string))))
  ;; Indent footnote definitions.
  (should
   (equal "[fn:1] Definition\n\nDefinition"
	  (org-test-with-temp-text "[fn:1] Definition\n\n  Definition"
	    (org-indent-region (point-min) (point-max))
	    (buffer-string))))
  ;; Special case: Start indenting on a blank line.
  (should
   (equal "\nParagraph"
	  (org-test-with-temp-text "\n  Paragraph"
	    (org-indent-region (point-min) (point-max))
	    (buffer-string)))))
;;; Editing
(ert-deftest test-org/delete-indentation ()
  "Test `org-delete-indentation' specifications."
  ;; Regular test.
  (should (equal "foo bar"
		(org-test-with-temp-text
		    "foo \n bar"
		  (org-delete-indentation)
		  (buffer-string))))
  ;; With optional argument.
  (should (equal "foo bar"
		(org-test-with-temp-text
		    "foo \n bar"
		  (org-delete-indentation t)
		  (buffer-string))))
  ;; At headline text should be appended to the headline text.
  (should
   (equal"* foo bar :tag:"
	 (let (org-auto-align-tags)
	   (org-test-with-temp-text
	       "* foo :tag:\n bar"
	     (org-delete-indentation)
	     (buffer-string)))))
  (should
   (equal "* foo bar :tag:"
	  (let (org-auto-align-tags)
	    (org-test-with-temp-text
		"* foo :tag:\n bar"
	      (org-delete-indentation t)
	      (buffer-string))))))
(ert-deftest test-org/return ()
  "Test `org-return' specifications."
  ;; Regular test.
  (should
   (equal "Para\ngraph"
	  (org-test-with-temp-text "Paragraph"
	    (org-return)
	    (buffer-string))))
  ;; With optional argument, indent line.
  (should
   (equal "  Para\n  graph"
	  (org-test-with-temp-text "  Paragraph"
	    (org-return t)
	    (buffer-string))))
  ;; On a table, call `org-table-next-row'.
  (should
   (org-test-with-temp-text "| a |\n| b |"
     (org-return)
     (looking-at-p "b")))
  ;; Open link or timestamp under point when `org-return-follows-link'
  ;; is non-nil.
  (should
   (org-test-with-temp-text "Link [[target]] <>"
     (let ((org-return-follows-link t)
	   (org-link-search-must-match-exact-headline nil))
       (org-return))
     (looking-at-p "<>")))
  (should-not
   (org-test-with-temp-text "Link [[target]] <>"
     (let ((org-return-follows-link nil)) (org-return))
     (looking-at-p "<>")))
  (should
   (org-test-with-temp-text "* [[b][a]]\n* b"
     (let ((org-return-follows-link t)) (org-return))
     (looking-at-p "* b")))
  (should
   (org-test-with-temp-text "Link [[target][/desciption/]] <>"
     (let ((org-return-follows-link t)
	   (org-link-search-must-match-exact-headline nil))
       (org-return))
     (looking-at-p "<>")))
  (should-not
   (org-test-with-temp-text "Link [[target]] <>"
     (let ((org-return-follows-link t)
	   (org-link-search-must-match-exact-headline nil))
       (org-return))
     (looking-at-p "<>")))
  ;; When `org-return-follows-link' is non-nil, tolerate links and
  ;; timestamps in comments, node properties, etc.
  (should
   (org-test-with-temp-text "# Comment [[target]]\n <>"
     (let ((org-return-follows-link t)
	   (org-link-search-must-match-exact-headline nil))
       (org-return))
     (looking-at-p "<>")))
  (should-not
   (org-test-with-temp-text "# Comment [[target]]\n <>"
     (let ((org-return-follows-link nil)) (org-return))
     (looking-at-p "<>")))
  (should-not
   (org-test-with-temp-text "# Comment [[target]]\n <>"
     (let ((org-return-follows-link t)
	   (org-link-search-must-match-exact-headline nil))
       (org-return))
     (looking-at-p "<>")))
  ;; `org-return-follows-link' handle multi-line lines.
  (should
   (org-test-with-temp-text
       "[[target][This is a very\n long description]]\n <>"
     (let ((org-return-follows-link t)
	   (org-link-search-must-match-exact-headline nil))
       (org-return))
     (looking-at-p "<>")))
  (should-not
   (org-test-with-temp-text
       "[[target][This is a very\n long description]]\n <>"
     (let ((org-return-follows-link t)
	   (org-link-search-must-match-exact-headline nil))
       (org-return))
     (looking-at-p "<>")))
  ;; However, do not open link when point is in a table.
  (should
   (org-test-with-temp-text "| [[target]] |\n| between |\n| <> |"
     (let ((org-return-follows-link t)) (org-return))
     (looking-at-p "between")))
  ;; Special case: in a list, when indenting, do not break structure.
  (should
   (equal "- A\n  B"
	  (org-test-with-temp-text "- A B"
	    (org-return t)
	    (buffer-string))))
  (should
   (equal "- A\n\n- B"
	  (org-test-with-temp-text "- A\n- B"
	    (org-return t)
	    (buffer-string))))
  ;; On tags part of a headline, add a newline below it instead of
  ;; breaking it.
  (should
   (equal "* H :tag:\n"
	  (org-test-with-temp-text "* H :tag:"
	    (org-return)
	    (buffer-string))))
  ;; Before headline text, add a newline below it instead of breaking
  ;; it.
  (should
   (equal "* TODO H :tag:\n"
	  (org-test-with-temp-text "* TODO H :tag:"
	    (org-return)
	    (buffer-string))))
  (should
   (equal "* TODO [#B] H :tag:\n"
	  (org-test-with-temp-text "* TODO [#B] H :tag:"
	    (org-return)
	    (buffer-string))))
  (should				;TODO are case-sensitive
   (equal "* \nTodo"
	  (org-test-with-temp-text "* Todo"
	    (org-return)
	    (buffer-string))))
  ;; At headline text, break headline text but preserve tags.
  (should
   (equal "* TODO [#B] foo    :tag:\nbar"
	  (let (org-auto-align-tags)
	    (org-test-with-temp-text "* TODO [#B] foobar :tag:"
	      (org-return)
	      (buffer-string)))))
  ;; At bol of headline insert newline.
  (should
   (equal "\n* h"
	  (org-test-with-temp-text "* h"
	    (org-return)
	    (buffer-string))))
  ;; Refuse to leave invalid headline in buffer.
  (should
   (equal "* h\n"
	  (org-test-with-temp-text "* h"
	    (org-return)
	    (buffer-string))))
  ;; Before first column or after last one in a table, split the
  ;; table.
  (should
   (equal "| a |\n\n| b |"
	  (org-test-with-temp-text "| a |\n| b |"
	    (org-return)
	    (buffer-string))))
  (should
   (equal "| a |\n\n| b |"
	  (org-test-with-temp-text "| a |\n| b |"
	    (org-return)
	    (buffer-string))))
  ;; Do not auto-fill on hitting  inside a property drawer.
  (should
   (equal "* Heading\n:PROPERTIES:\n:SOME_PROP: This is a very long property value that goes beyond the fill-column. But this is inside a property drawer, so the auto-filling should be disabled.\n\n:END:"
	  (org-test-with-temp-text "* Heading\n:PROPERTIES:\n:SOME_PROP: This is a very long property value that goes beyond the fill-column. But this is inside a property drawer, so the auto-filling should be disabled.\n:END:"
	    (setq-local fill-column 10)
	    (auto-fill-mode 1)
	    (org-return)
	    (buffer-string)))))
(ert-deftest test-org/meta-return ()
  "Test M-RET (`org-meta-return') specifications."
  ;; In a table field insert a row above.
  (should
   (org-test-with-temp-text "| a |"
     (forward-char)
     (org-meta-return)
     (forward-line -1)
     (looking-at "|   |$")))
  ;; In a paragraph change current line into a header.
  (should
   (org-test-with-temp-text "a"
     (org-meta-return)
     (beginning-of-line)
     (looking-at "\* a$")))
  ;; In an item insert an item, in this case above.
  (should
   (org-test-with-temp-text "- a"
     (org-meta-return)
     (beginning-of-line)
     (looking-at "- $")))
  ;; In a drawer and item insert an item, in this case above.
  (should
   (org-test-with-temp-text ":MYDRAWER:\n- a\n:END:"
     (forward-line)
     (org-meta-return)
     (beginning-of-line)
     (looking-at "- $"))))
(ert-deftest test-org/insert-heading ()
  "Test `org-insert-heading' specifications."
  ;; In an empty buffer, insert a new headline.
  (should
   (equal "* "
	  (org-test-with-temp-text ""
	    (org-insert-heading)
	    (buffer-string))))
  ;; At the beginning of a line, turn it into a headline.
  (should
   (equal "* P"
	  (org-test-with-temp-text "P"
	    (org-insert-heading)
	    (buffer-string))))
  ;; In the middle of a line, split the line if allowed, otherwise,
  ;; insert the headline at its end.
  (should
   (equal "Para\n* graph"
	  (org-test-with-temp-text "Paragraph"
	    (let ((org-M-RET-may-split-line '((default . t))))
	      (org-insert-heading))
	    (buffer-string))))
  (should
   (equal "Paragraph\n* "
	  (org-test-with-temp-text "Paragraph"
	    (let ((org-M-RET-may-split-line '((default . nil))))
	      (org-insert-heading))
	    (buffer-string))))
  ;; At the beginning of a headline, create one above.
  (should
   (equal "* \n* H"
	  (org-test-with-temp-text "* H"
	    (org-insert-heading)
	    (buffer-string))))
  ;; In the middle of a headline, split it if allowed.
  (should
   (equal "* H\n* 1"
	  (org-test-with-temp-text "* H1"
	    (let ((org-M-RET-may-split-line '((headline . t))))
	      (org-insert-heading))
	    (buffer-string))))
  (should
   (equal "* H1\n* "
	  (org-test-with-temp-text "* H1"
	    (let ((org-M-RET-may-split-line '((headline . nil))))
	      (org-insert-heading))
	    (buffer-string))))
  ;; However, splitting cannot happen on TODO keywords, priorities or
  ;; tags.
  (should
   (equal "* TODO H1\n* "
	  (org-test-with-temp-text "* TODO H1"
	    (let ((org-M-RET-may-split-line '((headline . t))))
	      (org-insert-heading))
	    (buffer-string))))
  (should
   (equal "* [#A] H1\n* "
	  (org-test-with-temp-text "* [#A] H1"
	    (let ((org-M-RET-may-split-line '((headline . t))))
	      (org-insert-heading))
	    (buffer-string))))
  (should
   (equal "* H1 :tag:\n* "
	  (org-test-with-temp-text "* H1 :tag:"
	    (let ((org-M-RET-may-split-line '((headline . t))))
	      (org-insert-heading))
	    (buffer-string))))
  ;; New headline level depends on the level of the headline above.
  (should
   (equal "** H\n** P"
	  (org-test-with-temp-text "** H\nP"
	    (org-insert-heading)
	    (buffer-string))))
  (should
   (equal "** H\nPara\n** graph"
	  (org-test-with-temp-text "** H\nParagraph"
	    (let ((org-M-RET-may-split-line '((default . t))))
	      (org-insert-heading))
	    (buffer-string))))
  (should
   (equal "** \n** H"
	  (org-test-with-temp-text "** H"
	    (org-insert-heading)
	    (buffer-string))))
  ;; When called with one universal argument, insert a new headline at
  ;; the end of the current subtree, independently on the position of
  ;; point.
  (should
   (equal
    "* H1\n** H2\n* "
    (org-test-with-temp-text "* H1\n** H2"
      (let ((org-insert-heading-respect-content nil))
	(org-insert-heading '(4)))
      (buffer-string))))
  (should
   (equal
    "* H1\n** H2\n* "
    (org-test-with-temp-text "* H1\n** H2"
      (let ((org-insert-heading-respect-content nil))
	(org-insert-heading '(4)))
      (buffer-string))))
  ;; When called with two universal arguments, insert a new headline
  ;; at the end of the grandparent subtree.
  (should
   (equal "* H1\n** H3\n- item\n** H2\n** "
	  (org-test-with-temp-text "* H1\n** H3\n- item\n** H2"
	    (let ((org-insert-heading-respect-content nil))
	      (org-insert-heading '(16)))
	    (buffer-string))))
  ;; When optional TOP-LEVEL argument is non-nil, always insert
  ;; a level 1 heading.
  (should
   (equal "* H1\n** H2\n* "
	  (org-test-with-temp-text "* H1\n** H2"
	    (org-insert-heading nil nil t)
	    (buffer-string))))
  (should
   (equal "* H1\n- item\n* "
	  (org-test-with-temp-text "* H1\n- item"
	    (org-insert-heading nil nil t)
	    (buffer-string))))
  ;; Obey `org-blank-before-new-entry'.
  (should
   (equal "* H1\n\n* "
	  (org-test-with-temp-text "* H1"
	    (let ((org-blank-before-new-entry '((heading . t))))
	      (org-insert-heading))
	    (buffer-string))))
  (should
   (equal "* H1\n* "
	  (org-test-with-temp-text "* H1"
	    (let ((org-blank-before-new-entry '((heading . nil))))
	      (org-insert-heading))
	    (buffer-string))))
  (should
   (equal "* H1\n* H2\n* "
	  (org-test-with-temp-text "* H1\n* H2"
	    (let ((org-blank-before-new-entry '((heading . auto))))
	      (org-insert-heading))
	    (buffer-string))))
  (should
   (equal "* H1\n\n* H2\n\n* "
	  (org-test-with-temp-text "* H1\n\n* H2"
	    (let ((org-blank-before-new-entry '((heading . auto))))
	      (org-insert-heading))
	    (buffer-string))))
  ;; Corner case: correctly insert a headline after an empty one.
  (should
   (equal "* \n* "
	  (org-test-with-temp-text "* "
	    (org-insert-heading)
	    (buffer-string))))
  (should
   (org-test-with-temp-text "* \n"
     (org-insert-heading)
     (looking-at-p "\n\\'")))
  ;; Do not insert spurious headlines when inserting a new headline.
  (should
   (equal "* H1\n* H2\n* \n"
	  (org-test-with-temp-text "* H1\n* H2\n"
	    (org-insert-heading)
	    (buffer-string))))
  ;; Preserve visibility at beginning of line.  In particular, when
  ;; removing spurious blank lines, do not visually merge heading with
  ;; the line visible above.
  (should-not
   (org-test-with-temp-text "* H1\nContents\n\n* H2\n"
     (org-overview)
     (let ((org-blank-before-new-entry '((heading . nil))))
       (org-insert-heading '(4)))
     (invisible-p (line-end-position 0))))
  ;; Properly handle empty lines when forcing a headline below current
  ;; one.
  (should
   (equal "* H1\n\n* H\n\n* "
	  (org-test-with-temp-text "* H1\n\n* H"
	    (let ((org-blank-before-new-entry '((heading . t))))
	      (org-insert-heading '(4))
	      (buffer-string))))))
(ert-deftest test-org/insert-todo-heading-respect-content ()
  "Test `org-insert-todo-heading-respect-content' specifications."
  ;; Create a TODO heading.
  (should
   (org-test-with-temp-text "* H1\n Body"
     (org-insert-todo-heading-respect-content)
     (nth 2 (org-heading-components))))
  ;; Add headline at the end of the first subtree
  (should
   (equal
    "* TODO "
    (org-test-with-temp-text "* H1\nH1Body\n** H2\nH2Body"
      (org-insert-todo-heading-respect-content)
      (buffer-substring-no-properties (line-beginning-position) (point-max)))))
  ;; In a list, do not create a new item.
  (should
   (equal
    "* TODO "
    (org-test-with-temp-text "* H\n- an item\n- another one"
      (search-forward "an ")
      (org-insert-todo-heading-respect-content)
      (buffer-substring-no-properties (line-beginning-position) (point-max)))))
  ;; Use the same TODO keyword as current heading.
  (should
   (equal
    "* TODO \n"
    (org-test-with-temp-text "* TODO\n** WAITING\n"
      (org-insert-todo-heading-respect-content)
      (buffer-substring-no-properties (line-beginning-position) (point-max))))))
(ert-deftest test-org/clone-with-time-shift ()
  "Test `org-clone-subtree-with-time-shift'."
  ;; Raise an error before first heading.
  (should-error
   (org-test-with-temp-text ""
     (org-clone-subtree-with-time-shift 1)))
  ;; Raise an error on invalid number of clones.
  (should-error
   (org-test-with-temp-text "* Clone me"
     (org-clone-subtree-with-time-shift -1)))
  ;; Clone non-repeating once.
  (should
   (equal "\
* H1\n<2015-06-21>
* H1\n<2015-06-23>
"
	  (org-test-with-temp-text "* H1\n<2015-06-21 Sun>"
	    (org-clone-subtree-with-time-shift 1 "+2d")
	    (replace-regexp-in-string
	     "\\( [.A-Za-z]+\\)\\( \\+[0-9][hdmwy]\\)?>" "" (buffer-string)
	     nil nil 1))))
  ;; Clone repeating once.
  (should
   (equal "\
* H1\n<2015-06-21>
* H1\n<2015-06-23>
* H1\n<2015-06-25 +1w>
"
	  (org-test-with-temp-text "* H1\n<2015-06-21 Sun +1w>"
	    (org-clone-subtree-with-time-shift 1 "+2d")
	    (replace-regexp-in-string
	     "\\( [.A-Za-z]+\\)\\( \\+[0-9][hdmwy]\\)?>" "" (buffer-string)
	     nil nil 1))))
  ;; Clone repeating once in backward.
  (should
   (equal "\
* H1\n<2015-06-21>
* H1\n<2015-06-19>
* H1\n<2015-06-17 +1w>
"
	  (org-test-with-temp-text "* H1\n<2015-06-21 Sun +1w>"
	    (org-clone-subtree-with-time-shift 1 "-2d")
	    (replace-regexp-in-string
	     "\\( [.A-Za-z]+\\)\\( \\+[0-9][hdmwy]\\)?>" "" (buffer-string)
	     nil nil 1))))
  ;; Clone non-repeating zero times.
  (should
   (equal "\
* H1\n<2015-06-21>
"
	  (org-test-with-temp-text "* H1\n<2015-06-21 Sun>"
	    (org-clone-subtree-with-time-shift 0 "+2d")
	    (replace-regexp-in-string
	     "\\( [.A-Za-z]+\\)\\( \\+[0-9][hdmwy]\\)?>" "" (buffer-string)
	     nil nil 1))))
  ;; Clone repeating "zero" times.
  (should
   (equal "\
* H1\n<2015-06-21>
* H1\n<2015-06-23 +1w>
"
	  (org-test-with-temp-text "* H1\n<2015-06-21 Sun +1w>"
	    (org-clone-subtree-with-time-shift 0 "+2d")
	    (replace-regexp-in-string
	     "\\( [.A-Za-z]+\\)\\( \\+[0-9][hdmwy]\\)?>" "" (buffer-string)
	     nil nil 1))))
  ;; Clone with blank SHIFT argument.
  (should
   (string-prefix-p
    "* H <2012-03-29"
    (org-test-with-temp-text "* H <2012-03-29 Thu>"
      (org-clone-subtree-with-time-shift 1 "")
      (buffer-substring-no-properties (line-beginning-position 2)
				      (line-end-position 2)))))
  ;; Find time stamps before point.  If SHIFT is not specified, ask
  ;; for a time shift.
  (should
   (string-prefix-p
    "* H <2012-03-30"
    (org-test-with-temp-text "* H <2012-03-29 Thu>"
      (org-clone-subtree-with-time-shift 1 "+1d")
      (buffer-substring-no-properties (line-beginning-position 2)
				      (line-end-position 2)))))
  (should
   (string-prefix-p
    "* H <2014-03-05"
    (org-test-with-temp-text "* H <2014-03-04 Tue>"
      (cl-letf (((symbol-function 'read-from-minibuffer)
		 (lambda (&rest args) "+1d")))
	(org-clone-subtree-with-time-shift 1))
      (buffer-substring-no-properties (line-beginning-position 2)
				      (line-end-position 2))))))
;;; Fixed-Width Areas
(ert-deftest test-org/toggle-fixed-width ()
  "Test `org-toggle-fixed-width' specifications."
  ;; No region: Toggle on fixed-width marker in paragraphs.
  (should
   (equal ": A"
	  (org-test-with-temp-text "A"
	    (org-toggle-fixed-width)
	    (buffer-string))))
  ;; No region: Toggle off fixed-width markers in fixed-width areas.
  (should
   (equal "A"
	  (org-test-with-temp-text ": A"
	    (org-toggle-fixed-width)
	    (buffer-string))))
  ;; No region: Toggle on marker in blank lines after elements or just
  ;; after a headline.
  (should
   (equal "* H\n: "
	  (org-test-with-temp-text "* H\n"
	    (forward-line)
	    (org-toggle-fixed-width)
	    (buffer-string))))
  (should
   (equal "#+BEGIN_EXAMPLE\nContents\n#+END_EXAMPLE\n: "
	  (org-test-with-temp-text "#+BEGIN_EXAMPLE\nContents\n#+END_EXAMPLE\n"
	    (goto-char (point-max))
	    (org-toggle-fixed-width)
	    (buffer-string))))
  ;; No region: Toggle on marker in front of one line elements (e.g.,
  ;; headlines, clocks)
  (should
   (equal ": * Headline"
	  (org-test-with-temp-text "* Headline"
	    (org-toggle-fixed-width)
	    (buffer-string))))
  (should
   (equal ": #+KEYWORD: value"
	  (org-test-with-temp-text "#+KEYWORD: value"
	    (org-toggle-fixed-width)
	    (buffer-string))))
  ;; No region: error in other situations.
  (should-error
   (org-test-with-temp-text "#+BEGIN_EXAMPLE\n: A\n#+END_EXAMPLE"
     (forward-line)
     (org-toggle-fixed-width)
     (buffer-string)))
  ;; No region: Indentation is preserved.
  (should
   (equal "- A\n  : B"
	  (org-test-with-temp-text "- A\n  B"
	    (forward-line)
	    (org-toggle-fixed-width)
	    (buffer-string))))
  ;; Region: If it contains only fixed-width elements and blank lines,
  ;; toggle off fixed-width markup.
  (should
   (equal "A\n\nB"
	  (org-test-with-temp-text ": A\n\n: B"
	    (transient-mark-mode 1)
	    (push-mark (point) t t)
	    (goto-char (point-max))
	    (org-toggle-fixed-width)
	    (buffer-string))))
  ;; Region: If it contains anything else, toggle on fixed-width but
  ;; not on fixed-width areas.
  (should
   (equal ": A\n: \n: B\n: \n: C"
	  (org-test-with-temp-text "A\n\n: B\n\nC"
	    (transient-mark-mode 1)
	    (push-mark (point) t t)
	    (goto-char (point-max))
	    (org-toggle-fixed-width)
	    (buffer-string))))
  ;; Region: Ignore blank lines at its end, unless it contains only
  ;; such lines.
  (should
   (equal ": A\n\n"
	  (org-test-with-temp-text "A\n\n"
	    (transient-mark-mode 1)
	    (push-mark (point) t t)
	    (goto-char (point-max))
	    (org-toggle-fixed-width)
	    (buffer-string))))
  (should
   (equal ": \n: \n"
	  (org-test-with-temp-text "\n\n"
	    (transient-mark-mode 1)
	    (push-mark (point) t t)
	    (goto-char (point-max))
	    (org-toggle-fixed-width)
	    (buffer-string)))))
(ert-deftest test-org/kill-line ()
  "Test `org-kill-line' specifications."
  ;; At the beginning of a line, kill whole line.
  (should
   (equal ""
	  (org-test-with-temp-text "abc"
	    (org-kill-line)
	    (buffer-string))))
  ;; In the middle of a line, kill line until its end.
  (should
   (equal "a"
	  (org-test-with-temp-text "abc"
	    (org-kill-line)
	    (buffer-string))))
  ;; Do not kill newline character.
  (should
   (equal "\n123"
	  (org-test-with-temp-text "abc\n123"
	    (org-kill-line)
	    (buffer-string))))
  (should
   (equal "a\n123"
	  (org-test-with-temp-text "abc\n123"
	    (org-kill-line)
	    (buffer-string))))
  ;; When `org-special-ctrl-k' is non-nil and point is at a headline,
  ;; kill until tags.
  (should
   (equal "* A :tag:"
	  (org-test-with-temp-text "* AB :tag:"
	    (let ((org-special-ctrl-k t)
		  (org-tags-column 0))
	      (org-kill-line))
	    (buffer-string))))
  ;; If point is on tags, only kill part left until the end of line.
  (should
   (equal "* A :tag:"
	  (org-test-with-temp-text "* A :tag:tag2:"
	    (let ((org-special-ctrl-k t)
		  (org-tags-column 0))
	      (org-kill-line))
	    (buffer-string))))
  ;; However, if point is at the beginning of the line, kill whole
  ;; headline.
  (should
   (equal ""
	  (org-test-with-temp-text "* AB :tag:"
	    (let ((org-special-ctrl-k t)
		  (org-tags-column 0))
	      (org-kill-line))
	    (buffer-string))))
  ;; When `org-ctrl-k-protect-subtree' is non-nil, and point is in
  ;; invisible text, ask before removing it.  When set to `error',
  ;; throw an error.
  (should-error
   (org-test-with-temp-text "* H\n** H2\nContents\n* H3"
     (org-overview)
     (let ((org-special-ctrl-k nil)
	   (org-ctrl-k-protect-subtree t))
       (cl-letf (((symbol-function 'y-or-n-p) 'ignore))
	 (org-kill-line)))))
  (should-error
   (org-test-with-temp-text "* H\n** H2\nContents\n* H3"
     (org-overview)
     (let ((org-special-ctrl-k nil)
	   (org-ctrl-k-protect-subtree 'error))
       (org-kill-line)))))
;;; Headline
(ert-deftest test-org/get-heading ()
  "Test `org-get-heading' specifications."
  ;; Return current heading, even if point is not on it.
  (should
   (equal "H"
	  (org-test-with-temp-text "* H"
	    (org-get-heading))))
  (should
   (equal "H"
	  (org-test-with-temp-text "* H\nText"
	    (org-get-heading))))
  ;; Without any optional argument, return TODO keyword, priority
  ;; cookie, COMMENT keyword and tags.
  (should
   (equal "TODO H"
	  (org-test-with-temp-text "#+TODO: TODO | DONE\n* TODO H"
	    (org-get-heading))))
  (should
   (equal "[#A] H"
	  (org-test-with-temp-text "* [#A] H"
	    (org-get-heading))))
  (should
   (equal "COMMENT H"
	  (org-test-with-temp-text "* COMMENT H"
	    (org-get-heading))))
  (should
   (equal "H :tag:"
	  (org-test-with-temp-text "* H :tag:"
	    (org-get-heading))))
  ;; With NO-TAGS argument, ignore tags.
  (should
   (equal "TODO H"
	  (org-test-with-temp-text "#+TODO: TODO | DONE\n* TODO H"
	    (org-get-heading t))))
  (should
   (equal "H"
	  (org-test-with-temp-text "* H :tag:"
	    (org-get-heading t))))
  ;; With NO-TODO, ignore TODO keyword.
  (should
   (equal "H"
	  (org-test-with-temp-text "#+TODO: TODO | DONE\n* TODO H"
	    (org-get-heading nil t))))
  (should
   (equal "H :tag:"
	  (org-test-with-temp-text "* H :tag:"
	    (org-get-heading nil t))))
  ;; TODO keywords are case-sensitive.
  (should
   (equal "Todo H"
	  (org-test-with-temp-text "#+TODO: TODO | DONE\n* Todo H"
	    (org-get-heading nil t))))
  ;; With NO-PRIORITY, ignore priority.
  (should
   (equal "H"
	  (org-test-with-temp-text "* [#A] H"
	    (org-get-heading nil nil t))))
  (should
   (equal "H"
	  (org-test-with-temp-text "* H"
	    (org-get-heading nil nil t))))
  (should
   (equal "TODO H"
	  (org-test-with-temp-text "* TODO [#A] H"
	    (org-get-heading nil nil t))))
  ;; With NO-COMMENT, ignore COMMENT keyword.
  (should
   (equal "H"
	  (org-test-with-temp-text "* COMMENT H"
	    (org-get-heading nil nil nil t))))
  (should
   (equal "H"
	  (org-test-with-temp-text "* H"
	    (org-get-heading nil nil nil t))))
  (should
   (equal "TODO [#A] H"
	  (org-test-with-temp-text "* TODO [#A] COMMENT H"
	    (org-get-heading nil nil nil t))))
  ;; On an empty headline, return value is consistent.
  (should (equal "" (org-test-with-temp-text "* " (org-get-heading))))
  (should (equal "" (org-test-with-temp-text "* " (org-get-heading t))))
  (should (equal "" (org-test-with-temp-text "* " (org-get-heading nil t))))
  (should (equal "" (org-test-with-temp-text "* " (org-get-heading nil nil t))))
  (should
   (equal "" (org-test-with-temp-text "* " (org-get-heading nil nil nil t)))))
(ert-deftest test-org/in-commented-heading-p ()
  "Test `org-in-commented-heading-p' specifications."
  ;; Commented headline.
  (should
   (org-test-with-temp-text "* COMMENT Headline\nBody"
     (goto-char (point-max))
     (org-in-commented-heading-p)))
  ;; Commented ancestor.
  (should
   (org-test-with-temp-text "* COMMENT Headline\n** Level 2\nBody"
     (goto-char (point-max))
     (org-in-commented-heading-p)))
  ;; Comment keyword is case-sensitive.
  (should-not
   (org-test-with-temp-text "* Comment Headline\nBody"
     (goto-char (point-max))
     (org-in-commented-heading-p)))
  ;; Keyword is standalone.
  (should-not
   (org-test-with-temp-text "* COMMENTHeadline\nBody"
     (goto-char (point-max))
     (org-in-commented-heading-p)))
  ;; Optional argument.
  (should-not
   (org-test-with-temp-text "* COMMENT Headline\n** Level 2\nBody"
     (goto-char (point-max))
     (org-in-commented-heading-p t))))
(ert-deftest test-org/entry-blocked-p ()
  ;; Check other dependencies.
  (should
   (org-test-with-temp-text "* TODO Blocked\n** DONE one\n** TODO two"
     (let ((org-enforce-todo-dependencies t)
	   (org-blocker-hook
	    '(org-block-todo-from-children-or-siblings-or-parent)))
       (org-entry-blocked-p))))
  (should-not
   (org-test-with-temp-text "* TODO Blocked\n** DONE one\n** DONE two"
     (let ((org-enforce-todo-dependencies t)
	   (org-blocker-hook
	    '(org-block-todo-from-children-or-siblings-or-parent)))
       (org-entry-blocked-p))))
  ;; Entry without a TODO keyword or with a DONE keyword cannot be
  ;; blocked.
  (should-not
   (org-test-with-temp-text "* Blocked\n** TODO one"
     (let ((org-enforce-todo-dependencies t)
	   (org-blocker-hook
	    '(org-block-todo-from-children-or-siblings-or-parent)))
       (org-entry-blocked-p))))
  (should-not
   (org-test-with-temp-text "* DONE Blocked\n** TODO one"
     (let ((org-enforce-todo-dependencies t)
	   (org-blocker-hook
	    '(org-block-todo-from-children-or-siblings-or-parent)))
       (org-entry-blocked-p))))
  ;; Follow :ORDERED: specifications.
  (should
   (org-test-with-temp-text
       "* H\n:PROPERTIES:\n:ORDERED: t\n:END:\n** TODO one\n** TODO two"
     (let ((org-enforce-todo-dependencies t)
	   (org-blocker-hook
	    '(org-block-todo-from-children-or-siblings-or-parent)))
       (org-entry-blocked-p))))
  (should-not
   (org-test-with-temp-text
       "* H\n:PROPERTIES:\n:ORDERED: t\n:END:\n** TODO one\n** DONE two"
     (let ((org-enforce-todo-dependencies t)
	   (org-blocker-hook
	    '(org-block-todo-from-children-or-siblings-or-parent)))
       (org-entry-blocked-p)))))
(ert-deftest test-org/get-outline-path ()
  "Test `org-get-outline-path' specifications."
  ;; Top-level headlines have no outline path.
  (should-not
   (org-test-with-temp-text "* H"
     (org-get-outline-path)))
  ;; Otherwise, outline path is the path leading to the headline.
  (should
   (equal '("H")
	  (org-test-with-temp-text "* H\n** S"
	    (org-get-outline-path))))
  ;; Find path even when point is not on a headline.
  (should
   (equal '("H")
	  (org-test-with-temp-text "* H\n** S\nText"
	    (org-get-outline-path))))
  ;; TODO keywords, tags and statistics cookies are ignored.
  (should
   (equal '("H")
	  (org-test-with-temp-text "* TODO H [0/1] :tag:\n** S"
	    (org-get-outline-path))))
  ;; Links are replaced with their description or their path.
  (should
   (equal '("Org")
	  (org-test-with-temp-text
	      "* [[https://orgmode.org][Org]]\n** S"
	    (org-get-outline-path))))
  (should
   (equal '("https://orgmode.org")
	  (org-test-with-temp-text
	      "* [[https://orgmode.org]]\n** S"
	    (org-get-outline-path))))
  ;; When WITH-SELF is non-nil, include current heading.
  (should
   (equal '("H")
	  (org-test-with-temp-text "* H"
	    (org-get-outline-path t))))
  (should
   (equal '("H" "S")
	  (org-test-with-temp-text "* H\n** S\nText"
	    (org-get-outline-path t))))
  ;; Using cache is transparent to the user.
  (should
   (equal '("H")
	  (org-test-with-temp-text "* H\n** S"
	    (setq org-outline-path-cache nil)
	    (org-get-outline-path nil t))))
  ;; Do not corrupt cache when finding outline path in distant part of
  ;; the buffer.
  (should
   (equal '("H2")
	  (org-test-with-temp-text "* H\n** S\n* H2\n** S2"
	    (setq org-outline-path-cache nil)
	    (org-get-outline-path nil t)
	    (search-forward "S2")
	    (org-get-outline-path nil t))))
  ;; Do not choke on empty headlines.
  (should
   (org-test-with-temp-text "* H\n** "
     (org-get-outline-path)))
  (should
   (org-test-with-temp-text "* \n** H"
     (org-get-outline-path))))
(ert-deftest test-org/format-outline-path ()
  "Test `org-format-outline-path' specifications."
  (should
   (string= (org-format-outline-path (list "one" "two" "three"))
	    "one/two/three"))
  ;; Empty path.
  (should
   (string= (org-format-outline-path '())
	    ""))
  (should
   (string= (org-format-outline-path '(nil))
	    ""))
  ;; Empty path and prefix.
  (should
   (string= (org-format-outline-path '() nil ">>")
	    ">>"))
  ;; Trailing whitespace in headings.
  (should
   (string= (org-format-outline-path (list "one\t" "tw o " "three  "))
	    "one/tw o/three"))
  ;; Non-default prefix and separators.
  (should
   (string= (org-format-outline-path (list "one" "two" "three") nil ">>" "|")
	    ">>|one|two|three"))
  ;; Truncate.
  (should
   (string= (org-format-outline-path (list "one" "two" "three" "four") 10)
	    "one/two/.."))
  ;; Give a very narrow width.
  (should
   (string= (org-format-outline-path (list "one" "two" "three" "four") 2)
	    "on"))
  ;; Give a prefix that extends beyond the width.
  (should
   (string= (org-format-outline-path (list "one" "two" "three" "four") 10
				     ">>>>>>>>>>")
	    ">>>>>>>>..")))
(ert-deftest test-org/map-entries ()
  "Test `org-map-entries' specifications."
  ;; Full match.
  (should
   (equal '(1 11)
	  (org-test-with-temp-text "* Level 1\n** Level 2"
	    (org-map-entries #'point))))
  ;; Level match.
  (should
   (equal '(1)
	  (org-test-with-temp-text "* Level 1\n** Level 2"
	    (let (org-odd-levels-only) (org-map-entries #'point "LEVEL=1")))))
  (should
   (equal '(11)
	  (org-test-with-temp-text "* Level 1\n** Level 2"
	    (let (org-odd-levels-only) (org-map-entries #'point "LEVEL>1")))))
  ;; Tag match.
  (should
   (equal '(11)
	  (org-test-with-temp-text "* H1 :no:\n* H2 :yes:"
	    (org-map-entries #'point "yes"))))
  (should
   (equal '(14)
	  (org-test-with-temp-text "* H1 :yes:a:\n* H2 :yes:b:"
	    (org-map-entries #'point "+yes-a"))))
  (should
   (equal '(11 23)
	  (org-test-with-temp-text "* H1 :no:\n* H2 :yes1:\n* H3 :yes2:"
	    (org-map-entries #'point "{yes?}"))))
  ;; Priority match.
  (should
   (equal '(1)
	  (org-test-with-temp-text "* [#A] H1\n* [#B] H2"
	    (org-map-entries #'point "PRIORITY=\"A\""))))
  ;; Date match.
  (should
   (equal '(36)
	  (org-test-with-temp-text "
* H1
SCHEDULED: <2012-03-29 thu.>
* H2
SCHEDULED: <2014-03-04 tue.>"
	    (org-map-entries #'point "SCHEDULED=\"<2014-03-04 tue.>\""))))
  (should
   (equal '(2)
	  (org-test-with-temp-text "
* H1
SCHEDULED: <2012-03-29 thu.>
* H2
SCHEDULED: <2014-03-04 tue.>"
	    (org-map-entries #'point "SCHEDULED<\"<2013-01-01>\""))))
  ;; Regular property match.
  (should
   (equal '(2)
	  (org-test-with-temp-text "
* H1
:PROPERTIES:
:TEST: 1
:END:
* H2
:PROPERTIES:
:TEST: 2
:END:"
	    (org-map-entries #'point "TEST=1"))))
  ;; Multiple criteria.
  (should
   (equal '(23)
	  (org-test-with-temp-text "* H1 :no:\n** H2 :yes:\n* H3 :yes:"
	    (let (org-odd-levels-only
		  (org-use-tag-inheritance nil))
	      (org-map-entries #'point "yes+LEVEL=1")))))
  ;; "or" criteria.
  (should
   (equal '(12 24)
	  (org-test-with-temp-text "* H1 :yes:\n** H2 :yes:\n** H3 :no:"
	    (let (org-odd-levels-only)
	      (org-map-entries #'point "LEVEL=2|no")))))
  (should
   (equal '(1 12)
	  (org-test-with-temp-text "* H1 :yes:\n* H2 :no:\n* H3 :maybe:"
	    (let (org-odd-levels-only)
	      (org-map-entries #'point "yes|no")))))
  ;; "and" criteria.
  (should
   (equal '(22)
	  (org-test-with-temp-text "* H1 :yes:\n* H2 :no:\n* H3 :yes:no:"
	    (let (org-odd-levels-only)
	      (org-map-entries #'point "yes&no"))))))
(ert-deftest test-org/edit-headline ()
  "Test `org-edit-headline' specifications."
  (should
   (equal "* B"
	  (org-test-with-temp-text "* A"
	    (org-edit-headline "B")
	    (buffer-string))))
  ;; Handle empty headings.
  (should
   (equal "* "
	  (org-test-with-temp-text "* A"
	    (org-edit-headline "")
	    (buffer-string))))
  (should
   (equal "* A"
	  (org-test-with-temp-text "* "
	    (org-edit-headline "A")
	    (buffer-string))))
  ;; Handle TODO keywords and priority cookies.
  (should
   (equal "* TODO B"
	  (org-test-with-temp-text "* TODO A"
	    (org-edit-headline "B")
	    (buffer-string))))
  (should
   (equal "* [#A] B"
	  (org-test-with-temp-text "* [#A] A"
	    (org-edit-headline "B")
	    (buffer-string))))
  (should
   (equal "* TODO [#A] B"
	  (org-test-with-temp-text "* TODO [#A] A"
	    (org-edit-headline "B")
	    (buffer-string))))
  ;; Handle tags.
  (equal "* B :tag:"
	 (org-test-with-temp-text "* A :tag:"
	   (let ((org-tags-column 4)) (org-edit-headline "B"))
	   (buffer-string))))
;;; Keywords
(ert-deftest test-org/set-regexps-and-options ()
  "Test `org-set-regexps-and-options' specifications."
  ;; TAGS keyword.
  (should
   (equal '(("A"))
	  (let ((org-tag-alist '(("A")))
		(org-tag-persistent-alist nil))
	    (org-test-with-temp-text ""
	      (org-mode-restart)
	      org-current-tag-alist))))
  (should
   (equal '(("B"))
	  (let ((org-tag-alist '(("A")))
		(org-tag-persistent-alist nil))
	    (org-test-with-temp-text "#+TAGS: B"
	      (org-mode-restart)
	      org-current-tag-alist))))
  (should
   (equal '(("C") ("B"))
	  (let ((org-tag-alist '(("A")))
		(org-tag-persistent-alist '(("C"))))
	    (org-test-with-temp-text "#+TAGS: B"
	      (org-mode-restart)
	      org-current-tag-alist))))
  (should
   (equal '(("B"))
	  (let ((org-tag-alist '(("A")))
		(org-tag-persistent-alist '(("C"))))
	    (org-test-with-temp-text "#+STARTUP: noptag\n#+TAGS: B"
	      (org-mode-restart)
	      org-current-tag-alist))))
  (should
   (equal '(("A" . ?a) ("B") ("C"))
	  (let ((org-tag-persistant-alist nil))
	    (org-test-with-temp-text "#+TAGS: A(a) B C"
	      (org-mode-restart)
	      org-current-tag-alist))))
  (should
   (equal '(("A") (:newline) ("B"))
	  (let ((org-tag-persistent-alist nil))
	    (org-test-with-temp-text "#+TAGS: A\n#+TAGS: B"
	      (org-mode-restart)
	      org-current-tag-alist))))
  (should
   (equal '((:startgroup) ("A") ("B") (:endgroup) ("C"))
	  (let ((org-tag-persistent-alist nil))
	    (org-test-with-temp-text "#+TAGS: { A B } C"
	      (org-mode-restart)
	      org-current-tag-alist))))
  (should
   (equal '((:startgroup) ("A") (:grouptags) ("B") ("C") (:endgroup))
	  (let ((org-tag-persistent-alist nil))
	    (org-test-with-temp-text "#+TAGS: { A : B C }"
	      (org-mode-restart)
	      org-current-tag-alist))))
  (should
   (equal '(("A" "B" "C"))
	  (let ((org-tag-persistent-alist nil))
	    (org-test-with-temp-text "#+TAGS: { A : B C }"
	      (org-mode-restart)
	      org-tag-groups-alist))))
  (should
   (equal '((:startgrouptag) ("A") (:grouptags) ("B") ("C") (:endgrouptag))
	  (let ((org-tag-persistent-alist nil))
	    (org-test-with-temp-text "#+TAGS: [ A : B C ]"
	      (org-mode-restart)
	      org-current-tag-alist))))
  (should
   (equal '(("A" "B" "C"))
	  (let ((org-tag-persistent-alist nil))
	    (org-test-with-temp-text "#+TAGS: [ A : B C ]"
	      (org-mode-restart)
	      org-tag-groups-alist))))
  ;; FILETAGS keyword.
  (should
   (equal '("A" "B" "C")
	  (org-test-with-temp-text "#+FILETAGS: :A:B:C:"
	    (org-mode-restart)
	    org-file-tags)))
  ;; PROPERTY keyword.  Property names are case-insensitive.
  (should
   (equal "foo=1"
	  (org-test-with-temp-text "#+PROPERTY: var foo=1"
	    (org-mode-restart)
	    (cdr (assoc "var" org-keyword-properties)))))
  (should
   (equal
    "foo=1 bar=2"
    (org-test-with-temp-text "#+PROPERTY: var foo=1\n#+PROPERTY: var+ bar=2"
      (org-mode-restart)
      (cdr (assoc "var" org-keyword-properties)))))
  (should
   (equal
    "foo=1 bar=2"
    (org-test-with-temp-text "#+PROPERTY: var foo=1\n#+PROPERTY: VAR+ bar=2"
      (org-mode-restart)
      (cdr (assoc "var" org-keyword-properties)))))
  ;; ARCHIVE keyword.
  (should
   (equal "%s_done::"
	  (org-test-with-temp-text "#+ARCHIVE: %s_done::"
	    (org-mode-restart)
	    org-archive-location)))
  ;; CATEGORY keyword.
  (should
   (eq 'test
       (org-test-with-temp-text "#+CATEGORY: test"
	 (org-mode-restart)
	 org-category)))
  (should
   (equal "test"
	  (org-test-with-temp-text "#+CATEGORY: test"
	    (org-mode-restart)
	    (cdr (assoc "CATEGORY" org-keyword-properties)))))
  ;; COLUMNS keyword.
  (should
   (equal "%25ITEM %TAGS %PRIORITY %TODO"
	  (org-test-with-temp-text "#+COLUMNS: %25ITEM %TAGS %PRIORITY %TODO"
	    (org-mode-restart)
	    org-columns-default-format)))
  ;; CONSTANTS keyword.  Constants names are case sensitive.
  (should
   (equal '("299792458." "3.14")
	  (org-test-with-temp-text "#+CONSTANTS: c=299792458. pi=3.14"
	    (org-mode-restart)
	    (mapcar
	     (lambda (n) (cdr (assoc n org-table-formula-constants-local)))
	     '("c" "pi")))))
  (should
   (equal "3.14"
	  (org-test-with-temp-text "#+CONSTANTS: pi=22/7 pi=3.14"
	    (org-mode-restart)
	    (cdr (assoc "pi" org-table-formula-constants-local)))))
  (should
   (equal "22/7"
	  (org-test-with-temp-text "#+CONSTANTS: PI=22/7 pi=3.14"
	    (org-mode-restart)
	    (cdr (assoc "PI" org-table-formula-constants-local)))))
  ;; LINK keyword.
  (should
   (equal
    '("url1" "url2")
    (org-test-with-temp-text "#+LINK: a url1\n#+LINK: b url2"
      (org-mode-restart)
      (mapcar (lambda (abbrev) (cdr (assoc abbrev org-link-abbrev-alist-local)))
	      '("a" "b")))))
  ;; PRIORITIES keyword.  Incomplete priorities sets are ignored.
  (should
   (equal
    '(?X ?Z ?Y)
    (org-test-with-temp-text "#+PRIORITIES: X Z Y"
      (org-mode-restart)
      (list org-priority-highest org-priority-lowest org-priority-default))))
  (should
   (equal
    '(?A ?C ?B)
    (org-test-with-temp-text "#+PRIORITIES: X Z"
      (org-mode-restart)
      (list org-priority-highest org-priority-lowest org-priority-default))))
  ;; STARTUP keyword.
  (should
   (equal '(t t)
	  (org-test-with-temp-text "#+STARTUP: fold odd"
	    (org-mode-restart)
	    (list org-startup-folded org-odd-levels-only))))
  ;; TODO keywords.
  (should
   (equal '(("A" "B") ("C"))
	  (org-test-with-temp-text "#+TODO: A B | C"
	    (org-mode-restart)
	    (list org-not-done-keywords org-done-keywords))))
  (should
   (equal '(("A" "C") ("B" "D"))
	  (org-test-with-temp-text "#+TODO: A | B\n#+TODO: C | D"
	    (org-mode-restart)
	    (list org-not-done-keywords org-done-keywords))))
  (should
   (equal '(("A" "B") ("C"))
	  (org-test-with-temp-text "#+TYP_TODO: A B | C"
	    (org-mode-restart)
	    (list org-not-done-keywords org-done-keywords))))
  (should
   (equal '((:startgroup) ("A" . ?a) (:endgroup))
	  (org-test-with-temp-text "#+TODO: A(a)"
	    (org-mode-restart)
	    org-todo-key-alist)))
  (should
   (equal '(("D" note nil) ("C" time nil) ("B" note time))
	  (org-test-with-temp-text "#+TODO: A(a) B(b@/!) | C(c!) D(d@)"
	    (org-mode-restart)
	    org-todo-log-states)))
  ;; Enter SETUPFILE keyword.
  (should
   (equal "1"
	  (org-test-with-temp-text
	      (format "#+SETUPFILE: \"%s/examples/setupfile.org\"" org-test-dir)
	    (org-mode-restart)
	    (cdr (assoc "a" org-keyword-properties))))))
;;; Links
;;;; Coderefs
(ert-deftest test-org/coderef ()
  "Test coderef links specifications."
  (should
   (org-test-with-temp-text "
#+BEGIN_SRC emacs-lisp
\(+ 1 1)                  (ref:sc)
#+END_SRC
\[[(sc)]]"
     (org-open-at-point)
     (looking-at "(ref:sc)")))
  ;; Find coderef even with alternate label format.
  (should
   (org-test-with-temp-text "
#+BEGIN_SRC emacs-lisp -l \"{ref:%s}\"
\(+ 1 1)                  {ref:sc}
#+END_SRC
\[[(sc)]]"
     (org-open-at-point)
     (looking-at "{ref:sc}"))))
;;;; Custom ID
(ert-deftest test-org/custom-id ()
  "Test custom ID links specifications."
  (should
   (org-test-with-temp-text
       "* H1\n:PROPERTIES:\n:CUSTOM_ID: custom\n:END:\n* H2\n[[#custom]]"
     (org-open-at-point)
     (looking-at-p "\\* H1")))
  ;; Handle escape characters.
  (should
   (org-test-with-temp-text
       "* H1\n:PROPERTIES:\n:CUSTOM_ID: [%]\n:END:\n* H2\n[[#\\[%\\]]]"
     (org-open-at-point)
     (looking-at-p "\\* H1")))
  ;; Throw an error on false positives.
  (should-error
   (org-test-with-temp-text
       "* H1\n:DRAWER:\n:CUSTOM_ID: custom\n:END:\n* H2\n[[#custom]]"
     (org-open-at-point)
     (looking-at-p "\\* H1"))))
;;;; Fuzzy Links
;; Fuzzy links [[text]] encompass links to a target (<>), to
;; a named element (#+name: text) and to headlines (* Text).
(ert-deftest test-org/fuzzy-links ()
  "Test fuzzy links specifications."
  ;; Fuzzy link goes in priority to a matching target.
  (should
   (org-test-with-temp-text
       "#+NAME: Test\n|a|b|\n<>\n* Test\n[[Test]]"
     (let ((org-link-search-must-match-exact-headline nil)) (org-open-at-point))
     (looking-at "<>")))
  ;; Then fuzzy link points to an element with a given name.
  (should
   (org-test-with-temp-text "Test\n#+NAME: Test\n|a|b|\n* Test\n[[Test]]"
     (let ((org-link-search-must-match-exact-headline nil)) (org-open-at-point))
     (looking-at "#\\+NAME: Test")))
  ;; A target still lead to a matching headline otherwise.
  (should
   (org-test-with-temp-text "* Head1\n* Head2\n*Head3\n[[Head2]]"
     (let ((org-link-search-must-match-exact-headline nil)) (org-open-at-point))
     (looking-at "\\* Head2")))
  ;; With a leading star in link, enforce heading match.
  (should
   (org-test-with-temp-text "* Test\n<>\n[[*Test]]"
     (let ((org-link-search-must-match-exact-headline nil)) (org-open-at-point))
     (looking-at "\\* Test")))
  ;; With a leading star in link, enforce exact heading match, even
  ;; with `org-link-search-must-match-exact-headline' set to nil.
  (should-error
   (org-test-with-temp-text "* Test 1\nFoo Bar\n[[*Test]]"
     (let ((org-link-search-must-match-exact-headline nil))
       (org-open-at-point))))
  ;; Handle non-nil `org-link-search-must-match-exact-headline'.
  (should
   (org-test-with-temp-text "* Test\nFoo Bar\n[[Test]]"
     (let ((org-link-search-must-match-exact-headline t)) (org-open-at-point))
     (looking-at "\\* Test")))
  (should
   (org-test-with-temp-text "* Test\nFoo Bar\n[[*Test]]"
     (let ((org-link-search-must-match-exact-headline t)) (org-open-at-point))
     (looking-at "\\* Test")))
  ;; Heading match should not care about spaces, cookies, TODO
  ;; keywords, priorities, and tags.  However, TODO keywords are
  ;; case-sensitive.
  (should
   (let ((first-line
	  "** TODO [#A] [/]  Test [1/2] [33%] 1 \t  2 [%] :work:urgent: "))
     (org-test-with-temp-text
	 (concat first-line "\nFoo Bar\n[[*Test 1 2]]")
       (let ((org-link-search-must-match-exact-headline nil)
	     (org-todo-regexp "TODO"))
	 (org-open-at-point))
       (looking-at (regexp-quote first-line)))))
  (should-error
   (org-test-with-temp-text "** todo Test 1 2\nFoo Bar\n[[*Test 1 2]]"
     (let ((org-link-search-must-match-exact-headline nil)
	   (org-todo-regexp "TODO"))
       (org-open-at-point))))
  ;; Heading match should still be exact.
  (should-error
   (org-test-with-temp-text "
** TODO [#A] [/]  Test [1/2] [33%] 1 \t  2 [%] :work:urgent:
Foo Bar
[[*Test 1]]"
     (let ((org-link-search-must-match-exact-headline nil)
	   (org-todo-regexp "TODO"))
       (org-open-at-point))))
  (should
   (org-test-with-temp-text "* Test 1 2 3\n** Test 1 2\n[[*Test 1 2]]"
     (let ((org-link-search-must-match-exact-headline nil)
	   (org-todo-regexp "TODO"))
       (org-open-at-point))
     (looking-at-p (regexp-quote "** Test 1 2"))))
  ;; Heading match ignores COMMENT keyword.
  (should
   (org-test-with-temp-text "[[*Test]]\n* COMMENT Test"
     (org-open-at-point)
     (looking-at "\\* COMMENT Test")))
  (should
   (org-test-with-temp-text "[[*Test]]\n* TODO COMMENT Test"
     (org-open-at-point)
     (looking-at "\\* TODO COMMENT Test")))
  ;; Correctly un-escape fuzzy links.
  (should
   (org-test-with-temp-text "* [foo]\n[[*\\[foo\\]][With escaped characters]]"
     (org-open-at-point)
     (bobp)))
  ;; Match search strings containing newline characters, including
  ;; blank lines.
  (should
   (org-test-with-temp-text-in-file "Paragraph\n\nline1\nline2\n\n"
     (let ((file (buffer-file-name)))
       (goto-char (point-max))
       (insert (format "[[file:%s::line1 line2]]" file))
       (beginning-of-line)
       (let ((org-link-search-must-match-exact-headline nil))
	 (org-open-at-point 0))
       (looking-at-p "line1"))))
  (should
   (org-test-with-temp-text-in-file "Paragraph\n\nline1\n\nline2\n\n"
     (let ((file (buffer-file-name)))
       (goto-char (point-max))
       (insert (format "[[file:%s::line1 line2]]" file))
       (beginning-of-line)
       (let ((org-link-search-must-match-exact-headline nil))
	 (org-open-at-point 0))
       (looking-at-p "line1")))))
;;;; Open at point
(ert-deftest test-org/open-at-point/keyword ()
  "Does `org-open-at-point' open link in a keyword line?"
  (should
   (org-test-with-temp-text
       "<>\n#+KEYWORD: [[top]]"
     (org-open-at-point) t))
  (should
   (org-test-with-temp-text
       "* H\n<>\n#+KEYWORD: [[top]]"
     (org-open-at-point) t)))
(ert-deftest test-org/open-at-point/property ()
  "Does `org-open-at-point' open link in property drawer?"
  (should
   (org-test-with-temp-text
       "* Headline
:PROPERTIES:
:URL: [[*Headline]]
:END:"
     (org-open-at-point) t)))
(ert-deftest test-org/open-at-point/comment ()
  "Does `org-open-at-point' open link in a commented line?"
  (should
   (org-test-with-temp-text
    "<>\n# [[top]]"
    (org-open-at-point) t))
  (should
   (org-test-with-temp-text
    "* H\n<>\n# [[top]]"
    (org-open-at-point) t)))
(ert-deftest test-org/open-at-point/inline-image ()
  "Test `org-open-at-point' on nested links."
  (should
   (org-test-with-temp-text "<>\n[[top][file:unicorn.jpg]]"
     (org-open-at-point)
     (bobp))))
(ert-deftest test-org/open-at-point/radio-target ()
  "Test `org-open-at-point' on radio targets."
  (should
   (org-test-with-temp-text "<<>> target"
     (org-update-radio-target-regexp)
     (org-open-at-point)
     (eq (org-element-type (org-element-context)) 'radio-target))))
(ert-deftest test-org/open-at-point/tag ()
  "Test `org-open-at-point' on tags."
  (should
   (org-test-with-temp-text "* H :tag:"
     (catch :result
       (cl-letf (((symbol-function 'org-tags-view)
		  (lambda (&rest args) (throw :result t))))
	 (org-open-at-point)
	 nil))))
  (should-not
   (org-test-with-temp-text-in-file "* H :tag:"
     (catch :result
       (cl-letf (((symbol-function 'org-tags-view)
		  (lambda (&rest args) (throw :result t))))
	 ;; When point isn't on a tag it's going to try other things,
	 ;; possibly trying to open attachments which will return an
	 ;; error if there isn't an attachment. Suppress that error.
	 (ignore-errors
	     (org-open-at-point))
	 nil)))))
;;; Node Properties
(ert-deftest test-org/accumulated-properties-in-drawers ()
  "Ensure properties accumulate in subtree drawers."
  (org-test-at-id "75282ba2-f77a-4309-a970-e87c149fe125"
    (org-babel-next-src-block)
    (should (equal '(2 1) (org-babel-execute-src-block)))))
(ert-deftest test-org/custom-properties ()
  "Test custom properties specifications."
  ;; Standard test.
  (should
   (let ((org-custom-properties '("FOO")))
     (org-test-with-temp-text "* H\n:PROPERTIES:\n:FOO: val\n:END:\n"
       (org-toggle-custom-properties-visibility)
       (org-invisible-p2))))
  ;; Properties are case-insensitive.
  (should
   (let ((org-custom-properties '("FOO")))
     (org-test-with-temp-text "* H\n:PROPERTIES:\n:foo: val\n:END:\n"
       (org-toggle-custom-properties-visibility)
       (org-invisible-p2))))
  (should
   (let ((org-custom-properties '("foo")))
     (org-test-with-temp-text "* H\n:PROPERTIES:\n:FOO: val\n:END:\n"
       (org-toggle-custom-properties-visibility)
       (org-invisible-p2))))
  ;; Multiple custom properties in the same drawer.
  (should
   (let ((org-custom-properties '("FOO" "BAR")))
     (org-test-with-temp-text
	 "* H\n:PROPERTIES:\n:FOO: val\n:P: 1\n:BAR: baz\n:END:\n"
       (org-toggle-custom-properties-visibility)
       (and (org-invisible-p2)
	    (not (progn (forward-line) (org-invisible-p2)))
	    (progn (forward-line) (org-invisible-p2))))))
  ;; Hide custom properties with an empty value.
  (should
   (let ((org-custom-properties '("FOO")))
     (org-test-with-temp-text "* H\n:PROPERTIES:\n:FOO:\n:END:\n"
       (org-toggle-custom-properties-visibility)
       (org-invisible-p2))))
  ;; Do not hide fake properties.
  (should-not
   (let ((org-custom-properties '("FOO")))
     (org-test-with-temp-text ":FOO: val\n"
       (org-toggle-custom-properties-visibility)
       (org-invisible-p2))))
  (should-not
   (let ((org-custom-properties '("A")))
     (org-test-with-temp-text
	 "* H\n:PROPERTIES:\n:A: 1\n:END:\n\n:PROPERTIES:\n:A: 2\n:END:"
       (org-toggle-custom-properties-visibility)
       (org-invisible-p2)))))
;;; Mark Region
(ert-deftest test-org/mark-subtree ()
  "Test `org-mark-subtree' specifications."
  ;; Error when point is before first headline.
  (should-error
   (org-test-with-temp-text "Paragraph\n* Headline\nBody"
     (progn (transient-mark-mode 1)
	    (org-mark-subtree))))
  ;; Without argument, mark current subtree.
  (should
   (equal
    '(12 32)
    (org-test-with-temp-text "* Headline\n** Sub-headline\nBody"
      (progn (transient-mark-mode 1)
	     (forward-line 2)
	     (org-mark-subtree)
	     (list (region-beginning) (region-end))))))
  ;; With an argument, move ARG up.
  (should
   (equal
    '(1 32)
    (org-test-with-temp-text "* Headline\n** Sub-headline\nBody"
      (progn (transient-mark-mode 1)
	     (forward-line 2)
	     (org-mark-subtree 1)
	     (list (region-beginning) (region-end))))))
  ;; Do not get fooled by inlinetasks.
  (when (featurep 'org-inlinetask)
    (should
     (= 1
	(org-test-with-temp-text "* Headline\n*************** Task\nContents"
	  (progn (transient-mark-mode 1)
		 (forward-line 1)
		 (let ((org-inlinetask-min-level 15)) (org-mark-subtree))
		 (region-beginning)))))))
 
;;; Miscellaneous
(ert-deftest test-org/sort-entries ()
  "Test `org-sort-entries'."
  ;; Sort alphabetically.
  (should
   (equal "\n* abc\n* def\n* xyz\n"
	  (org-test-with-temp-text "\n* def\n* xyz\n* abc\n"
	    (org-sort-entries nil ?a)
	    (buffer-string))))
  (should
   (equal "\n* xyz\n* def\n* abc\n"
	  (org-test-with-temp-text "\n* def\n* xyz\n* abc\n"
	    (org-sort-entries nil ?A)
	    (buffer-string))))
  (should
   (equal "\n* \n* klm\n* xyz\n"
	  (org-test-with-temp-text "\n* xyz\n* \n* klm\n"
	    (org-sort-entries nil ?a)
	    (buffer-string))))
  ;; Sort numerically.
  (should
   (equal "\n* 1\n* 2\n* 10\n"
	  (org-test-with-temp-text "\n* 10\n* 1\n* 2\n"
	    (org-sort-entries nil ?n)
	    (buffer-string))))
  (should
   (equal "\n* 10\n* 2\n* 1\n"
	  (org-test-with-temp-text "\n* 10\n* 1\n* 2\n"
	    (org-sort-entries nil ?N)
	    (buffer-string))))
  (should
   (equal "\n* \n* 1\n* 2\n"
	  (org-test-with-temp-text "\n* 1\n* \n* 2\n"
	    (org-sort-entries nil ?n)
	    (buffer-string))))
  ;; Sort by custom function.
  (should
   (equal "\n* b\n* aa\n* ccc\n"
	  (org-test-with-temp-text "\n* ccc\n* b\n* aa\n"
	    (org-sort-entries nil ?f
			      (lambda ()
				(length (buffer-substring (point-at-bol)
							  (point-at-eol))))
			      #'<)
	    (buffer-string))))
  (should
   (equal "\n* ccc\n* aa\n* b\n"
	  (org-test-with-temp-text "\n* ccc\n* b\n* aa\n"
	    (org-sort-entries nil ?F
			      (lambda ()
				(length (buffer-substring (point-at-bol)
							  (point-at-eol))))
			      #'<)
	    (buffer-string))))
  ;; Sort by TODO keyword.
  (should
   (equal "\n* TODO h1\n* TODO h3\n* DONE h2\n"
	  (org-test-with-temp-text
	      "\n* TODO h1\n* DONE h2\n* TODO h3\n"
	    (org-sort-entries nil ?o)
	    (buffer-string))))
  (should
   (equal "\n* DONE h2\n* TODO h1\n* TODO h3\n"
	  (org-test-with-temp-text
	      "\n* TODO h1\n* DONE h2\n* TODO h3\n"
	    (org-sort-entries nil ?O)
	    (buffer-string))))
  ;; Sort by priority.
  (should
   (equal "\n* [#A] h2\n* [#B] h3\n* [#C] h1\n"
	  (org-test-with-temp-text
	      "\n* [#C] h1\n* [#A] h2\n* [#B] h3\n"
	    (org-sort-entries nil ?p)
	    (buffer-string))))
  (should
   (equal "\n* [#C] h1\n* [#B] h3\n* [#A] h2\n"
	  (org-test-with-temp-text
	      "\n* [#C] h1\n* [#A] h2\n* [#B] h3\n"
	    (org-sort-entries nil ?P)
	    (buffer-string))))
  ;; Sort by creation time.
  (should
   (equal "
* h3
  [2017-05-08 Mon]
* h2
  [2017-05-09 Tue]
* h1
  [2018-05-09 Wed]
"
	  (org-test-with-temp-text
	      "
* h1
  [2018-05-09 Wed]
* h2
  [2017-05-09 Tue]
* h3
  [2017-05-08 Mon]
"
	    (org-sort-entries nil ?c)
	    (buffer-string))))
  ;; Sort by scheduled date.
  (should
   (equal "
* TODO h4
SCHEDULED: <2017-05-06 Sat>
* TODO h3
SCHEDULED: <2017-05-08 Mon>
* TODO h2
DEADLINE: <2017-05-09 Tue>
* TODO h1
DEADLINE: <2017-05-07 Sun>
"
	  (org-test-with-temp-text
	      "
* TODO h2
DEADLINE: <2017-05-09 Tue>
* TODO h1
DEADLINE: <2017-05-07 Sun>
* TODO h3
SCHEDULED: <2017-05-08 Mon>
* TODO h4
SCHEDULED: <2017-05-06 Sat>
"
	    (org-sort-entries nil ?s)
	    (buffer-string))))
  ;; Sort by deadline date.
  (should
   (equal "
* TODO h1
DEADLINE: <2017-05-07 Sun>
* TODO h2
DEADLINE: <2017-05-09 Tue>
* TODO h3
SCHEDULED: <2017-05-08 Mon>
* TODO h4
SCHEDULED: <2017-05-06 Sat>
"
	  (org-test-with-temp-text
	      "
* TODO h2
DEADLINE: <2017-05-09 Tue>
* TODO h1
DEADLINE: <2017-05-07 Sun>
* TODO h3
SCHEDULED: <2017-05-08 Mon>
* TODO h4
SCHEDULED: <2017-05-06 Sat>
"
	    (org-sort-entries nil ?d)
	    (buffer-string))))
  ;; Sort by any date/time
  (should
   (equal "
* TODO h4
SCHEDULED: <2017-05-06 Sat>
* TODO h1
DEADLINE: <2017-05-07 Sun>
* TODO h3
SCHEDULED: <2017-05-08 Mon>
* TODO h2
DEADLINE: <2017-05-09 Tue>
"
	  (org-test-with-temp-text
	      "
* TODO h2
DEADLINE: <2017-05-09 Tue>
* TODO h1
DEADLINE: <2017-05-07 Sun>
* TODO h3
SCHEDULED: <2017-05-08 Mon>
* TODO h4
SCHEDULED: <2017-05-06 Sat>
"
	    (org-sort-entries nil ?t)
	    (buffer-string))))
  ;; Sort by clocking time.
  (should
   (equal "
* clocked h2
  :LOGBOOK:
  CLOCK: [2017-05-09 Tue 00:15]--[2017-05-09 Tue 00:22] =>  0:07
  CLOCK: [2017-05-09 Tue 00:00]--[2017-05-09 Tue 00:10] =>  0:10
  :END:
* clocked h1
  :LOGBOOK:
  CLOCK: [2017-05-09 Tue 00:15]--[2017-05-09 Tue 00:22] =>  0:07
  CLOCK: [2017-05-09 Tue 00:00]--[2017-05-09 Tue 00:12] =>  0:12
  :END:
"
	  (org-test-with-temp-text
	      "
* clocked h1
  :LOGBOOK:
  CLOCK: [2017-05-09 Tue 00:15]--[2017-05-09 Tue 00:22] =>  0:07
  CLOCK: [2017-05-09 Tue 00:00]--[2017-05-09 Tue 00:12] =>  0:12
  :END:
* clocked h2
  :LOGBOOK:
  CLOCK: [2017-05-09 Tue 00:15]--[2017-05-09 Tue 00:22] =>  0:07
  CLOCK: [2017-05-09 Tue 00:00]--[2017-05-09 Tue 00:10] =>  0:10
  :END:
"
	    (org-sort-entries nil ?k)
	    (buffer-string))))
  ;; Preserve file local variables when sorting.
  (should
   (equal "\n* A\n* B\n# Local Variables:\n# foo: t\n# End:\n"
	  (org-test-with-temp-text
	      "\n* B\n* A\n# Local Variables:\n# foo: t\n# End:"
	    (org-sort-entries nil ?a)
	    (buffer-string)))))
(ert-deftest test-org/string-collate-greaterp ()
  "Test `org-string-collate-greaterp' specifications."
  (should (org-string-collate-greaterp "def" "abc"))
  (should-not (org-string-collate-greaterp "abc" "def")))
(ert-deftest test-org/file-contents ()
  "Test `org-file-contents' specifications."
  ;; Open files.
  (should
   (string= "#+BIND: variable value
#+DESCRIPTION: l2
#+LANGUAGE: en
#+SELECT_TAGS: b
#+TITLE: b
#+PROPERTY: a 1
" (org-file-contents (expand-file-name "setupfile3.org"
				       (concat org-test-dir "examples/")))))
  ;; Throw error when trying to access an invalid file.
  (should-error (org-file-contents "this-file-must-not-exist"))
  ;; Try to access an invalid file, but do not throw an error.
  (should
   (progn (org-file-contents "this-file-must-not-exist" :noerror) t))
  ;; Open URL.
  (should
   (string= "foo"
	    (let ((buffer (generate-new-buffer "url-retrieve-output")))
	      (unwind-protect
		  ;; Simulate successful retrieval of a URL.
		  (cl-letf (((symbol-function 'url-retrieve-synchronously)
			     (lambda (&rest_)
			       (with-current-buffer buffer
				 (insert "HTTP/1.1 200 OK\n\nfoo"))
			       buffer)))
		    (org-file-contents "http://some-valid-url"))
		(kill-buffer buffer)))))
  ;; Throw error when trying to access an invalid URL.
  (should-error
   (let ((buffer (generate-new-buffer "url-retrieve-output")))
     (unwind-protect
	 ;; Simulate unsuccessful retrieval of a URL.
	 (cl-letf (((symbol-function 'url-retrieve-synchronously)
		    (lambda (&rest_)
		      (with-current-buffer buffer
			(insert "HTTP/1.1 404 Not found\n\ndoes not matter"))
		      buffer)))
	   (org-file-contents "http://this-url-must-not-exist"))
       (kill-buffer buffer))))
  ;; Try to access an invalid URL, but do not throw an error.
  (should-error
   (let ((buffer (generate-new-buffer "url-retrieve-output")))
     (unwind-protect
	 ;; Simulate unsuccessful retrieval of a URL.
	 (cl-letf (((symbol-function 'url-retrieve-synchronously)
		    (lambda (&rest_)
		      (with-current-buffer buffer
			(insert "HTTP/1.1 404 Not found\n\ndoes not matter"))
		      buffer)))
	   (org-file-contents "http://this-url-must-not-exist"))
       (kill-buffer buffer))))
  (should
   (let ((buffer (generate-new-buffer "url-retrieve-output")))
     (unwind-protect
	 ;; Simulate unsuccessful retrieval of a URL.
	 (cl-letf (((symbol-function 'url-retrieve-synchronously)
		    (lambda (&rest_)
		      (with-current-buffer buffer
			(insert "HTTP/1.1 404 Not found\n\ndoes not matter"))
		      buffer)))
	   (org-file-contents "http://this-url-must-not-exist" :noerror))
       (kill-buffer buffer))
     t)))
;;; Navigation
(ert-deftest test-org/forward-heading-same-level ()
  "Test `org-forward-heading-same-level' specifications."
  ;; Test navigation at top level, forward and backward.
  (should
   (equal "* H2"
	  (org-test-with-temp-text "* H1\n* H2"
	    (org-forward-heading-same-level 1)
	    (buffer-substring-no-properties (point) (line-end-position)))))
  (should
   (equal "* H1"
	  (org-test-with-temp-text "* H1\n* H2"
	    (org-forward-heading-same-level -1)
	    (buffer-substring-no-properties (point) (line-end-position)))))
  ;; Test navigation in a sub-tree, forward and backward.
  (should
   (equal "* H2"
	  (org-test-with-temp-text "* H1\n** H11\n** H12\n* H2"
	    (org-forward-heading-same-level 1)
	    (buffer-substring-no-properties (point) (line-end-position)))))
  (should
   (equal "* H1"
	  (org-test-with-temp-text "* H1\n** H11\n** H12\n* H2"
	    (org-forward-heading-same-level -1)
	    (buffer-substring-no-properties (point) (line-end-position)))))
  ;; Stop at first or last sub-heading.
  (should-not
   (equal "* H2"
	  (org-test-with-temp-text "* H1\n** H11\n** H12\n* H2"
	    (org-forward-heading-same-level 1)
	    (buffer-substring-no-properties (point) (line-end-position)))))
  (should-not
   (equal "* H2"
	  (org-test-with-temp-text "* H1\n** H11\n** H12\n* H2"
	    (org-forward-heading-same-level -1)
	    (buffer-substring-no-properties (point) (line-end-position)))))
  ;; Allow multiple moves.
  (should
   (equal "* H3"
	  (org-test-with-temp-text "* H1\n* H2\n* H3"
	    (org-forward-heading-same-level 2)
	    (buffer-substring-no-properties (point) (line-end-position)))))
  (should
   (equal "* H1"
	  (org-test-with-temp-text "* H1\n* H2\n* H3"
	    (org-forward-heading-same-level -2)
	    (buffer-substring-no-properties (point) (line-end-position)))))
  ;; Ignore spurious moves when first (or last) sibling is reached.
  (should
   (equal "** H3"
	  (org-test-with-temp-text "* First\n** H1\n** H2\n** H3\n* Last"
	    (org-forward-heading-same-level 100)
	    (buffer-substring-no-properties (point) (line-end-position)))))
  (should
   (equal "** H1"
	  (org-test-with-temp-text "* First\n** H1\n** H2\n** H3\n* Last"
	    (org-forward-heading-same-level -100)
	    (buffer-substring-no-properties (point) (line-end-position))))))
(ert-deftest test-org/end-of-meta-data ()
  "Test `org-end-of-meta-data' specifications."
  ;; Skip planning line.
  (should
   (org-test-with-temp-text "* Headline\nSCHEDULED: <2014-03-04 tue.>"
     (org-end-of-meta-data)
     (eobp)))
  ;; Skip properties drawer.
  (should
   (org-test-with-temp-text
       "* Headline\nSCHEDULED: <2014-03-04 tue.>\n:PROPERTIES:\n:A: 1\n:END:"
     (org-end-of-meta-data)
     (eobp)))
  ;; Skip both.
  (should
   (org-test-with-temp-text "* Headline\n:PROPERTIES:\n:A: 1\n:END:"
     (org-end-of-meta-data)
     (eobp)))
  ;; Nothing to skip, go to first line.
  (should
   (org-test-with-temp-text "* Headline\nContents"
     (org-end-of-meta-data)
     (looking-at "Contents")))
  ;; With option argument, skip empty lines, regular drawers and
  ;; clocking lines.
  (should
   (org-test-with-temp-text "* Headline\n\nContents"
     (org-end-of-meta-data t)
     (looking-at "Contents")))
  (should
   (org-test-with-temp-text "* Headline\nCLOCK:\nContents"
     (org-end-of-meta-data t)
     (looking-at "Contents")))
  (should
   (org-test-with-temp-text "* Headline\n:LOGBOOK:\nlogging\n:END:\nContents"
     (org-end-of-meta-data t)
     (looking-at "Contents")))
  ;; Special case: do not skip incomplete drawers.
  (should
   (org-test-with-temp-text "* Headline\n:LOGBOOK:\nlogging\nContents"
     (org-end-of-meta-data t)
     (looking-at ":LOGBOOK:")))
  ;; Special case: Be careful about consecutive headlines.
  (should-not
   (org-test-with-temp-text "* H1\n*H2\nContents"
     (org-end-of-meta-data t)
     (looking-at "Contents"))))
(ert-deftest test-org/beginning-of-line ()
  "Test `org-beginning-of-line' specifications."
  ;; Move to beginning of line.  If current line in invisible, move to
  ;; beginning of visible line instead.
  (should
   (org-test-with-temp-text "Some text\nSome other text"
     (org-beginning-of-line)
     (bolp)))
  (should
   (org-test-with-temp-text "* H1\n** H2"
     (org-overview)
     (org-beginning-of-line)
     (= (line-beginning-position) 1)))
  ;; With `visual-line-mode' active, move to beginning of visual line.
  (should-not
   (org-test-with-temp-text "A long line of text\nSome other text"
     (visual-line-mode)
     (dotimes (i 1000) (insert "very "))
     (org-beginning-of-line)
     (bolp)))
  ;; In a wide headline, with `visual-line-mode', prefer going to the
  ;; beginning of a visual line than to the logical beginning of line,
  ;; even if special movement is active.
  (should-not
   (org-test-with-temp-text "* A long headline"
     (visual-line-mode)
     (dotimes (i 1000) (insert "very "))
     (goto-char (point-max))
     (org-beginning-of-line)
     (bobp)))
  (should-not
   (org-test-with-temp-text "* A long headline"
     (visual-line-mode)
     (dotimes (i 1000) (insert "very "))
     (goto-char (point-max))
     (let ((org-special-ctrl-a/e t)) (org-beginning-of-line))
     (bobp)))
  ;; At an headline with special movement, first move at beginning of
  ;; title, then at the beginning of line, rinse, repeat.
  (should
   (org-test-with-temp-text "* TODO Headline"
     (let ((org-special-ctrl-a/e t))
       (and (progn (org-beginning-of-line) (looking-at-p "Headline"))
	    (progn (org-beginning-of-line) (bolp))
	    (progn (org-beginning-of-line) (looking-at-p "Headline"))))))
  (should
   (org-test-with-temp-text "* TODO [#A] Headline"
     (let ((org-special-ctrl-a/e t))
       (org-beginning-of-line)
       (looking-at "Headline"))))
  (should
   (org-test-with-temp-text "* TODO [#A] Headline"
     (let ((org-special-ctrl-a/e '(t . nil)))
       (org-beginning-of-line)
       (looking-at "Headline"))))
  (should-not
   (org-test-with-temp-text "* TODO [#A] Headline"
     (let ((org-special-ctrl-a/e '(nil . nil)))
       (org-beginning-of-line)
       (looking-at "Headline"))))
  ;; At an headline with reversed movement, first move to beginning of
  ;; line, then to the beginning of title.
  (should
   (org-test-with-temp-text "* TODO Headline"
     (let ((org-special-ctrl-a/e 'reversed)
	   (this-command last-command))
       (and (progn (org-beginning-of-line) (bolp))
	    (progn (org-beginning-of-line) (looking-at-p "Headline"))))))
  (should
   (org-test-with-temp-text "* TODO Headline"
     (let ((org-special-ctrl-a/e '(reversed . nil))
	   (this-command last-command))
       (and (progn (org-beginning-of-line) (bolp))
	    (progn (org-beginning-of-line) (looking-at-p "Headline"))))))
  (should-not
   (org-test-with-temp-text "* TODO Headline"
     (let ((org-special-ctrl-a/e '(t . nil))
	   (this-command last-command))
       (and (progn (org-beginning-of-line) (bolp))
	    (progn (org-beginning-of-line) (looking-at-p "Headline"))))))
  ;; At an item with special movement, first move after to beginning
  ;; of title, then to the beginning of line, rinse, repeat.
  (should
   (org-test-with-temp-text "- [ ] Item"
     (let ((org-special-ctrl-a/e t))
       (and (progn (org-beginning-of-line) (looking-at-p "Item"))
	    (progn (org-beginning-of-line) (bolp))
	    (progn (org-beginning-of-line) (looking-at-p "Item"))))))
  ;; At an item with reversed movement, first move to beginning of
  ;; line, then to the beginning of title.
  (should
   (org-test-with-temp-text "- [X] Item"
     (let ((org-special-ctrl-a/e 'reversed)
	   (this-command last-command))
       (and (progn (org-beginning-of-line) (bolp))
	    (progn (org-beginning-of-line) (looking-at-p "Item"))))))
  ;; Leave point before invisible characters at column 0.
  (should
   (org-test-with-temp-text "[[https://orgmode.org]]"
     (let ((org-special-ctrl-a/e nil))
       (org-beginning-of-line)
       (bolp))))
  (should
   (org-test-with-temp-text "[[https://orgmode.org]]"
     (let ((org-special-ctrl-a/e t))
       (org-beginning-of-line)
       (bolp))))
  (should
   (org-test-with-temp-text "[[http://orgmode.org]]"
     (visual-line-mode)
     (org-beginning-of-line)
     (bolp)))
  ;; Special case: Do not error when the buffer contains only a single
  ;; asterisk.
  (should
   (org-test-with-temp-text "*"
     (let ((org-special-ctrl-a/e t)) (org-beginning-of-line) t)))
  (should
   (org-test-with-temp-text "*"
     (let ((org-special-ctrl-a/e nil)) (org-beginning-of-line) t))))
(ert-deftest test-org/end-of-line ()
  "Test `org-end-of-line' specifications."
  ;; Standard test.
  (should
   (org-test-with-temp-text "Some text\nSome other text"
     (org-end-of-line)
     (eolp)))
  ;; With `visual-line-mode' active, move to end of visible line.
  ;; However, never go past ellipsis.
  (should-not
   (org-test-with-temp-text "A long line of text\nSome other text"
     (visual-line-mode)
     (dotimes (i 1000) (insert "very "))
     (goto-char (point-min))
     (org-end-of-line)
     (eolp)))
  (should-not
   (org-test-with-temp-text "* A short headline\nSome contents"
     (visual-line-mode)
     (org-overview)
     (org-end-of-line)
     (eobp)))
  ;; In a wide headline, with `visual-line-mode', prefer going to end
  ;; of visible line if tags, or end of line, are farther.
  (should-not
   (org-test-with-temp-text "* A long headline"
     (visual-line-mode)
     (dotimes (i 1000) (insert "very "))
     (goto-char (point-min))
     (org-end-of-line)
     (eolp)))
  (should-not
   (org-test-with-temp-text "* A long headline :tag:"
     (visual-line-mode)
     (dotimes (i 1000) (insert "very "))
     (goto-char (point-min))
     (org-end-of-line)
     (eolp)))
  ;; At an headline without special movement, go to end of line.
  ;; However, never go past ellipsis.
  (should
   (org-test-with-temp-text "* Headline2b :tag:\n"
     (let ((org-special-ctrl-a/e nil))
       (and (progn (org-end-of-line) (eolp))
	    (progn (org-end-of-line) (eolp))))))
  (should
   (org-test-with-temp-text "* Headline2b :tag:\n"
     (let ((org-special-ctrl-a/e '(t . nil)))
       (and (progn (org-end-of-line) (eolp))
	    (progn (org-end-of-line) (eolp))))))
  (should
   (org-test-with-temp-text "* Headline2a :tag:\n** Sub"
     (org-overview)
     (let ((org-special-ctrl-a/e nil))
       (org-end-of-line)
       (= 1 (line-beginning-position)))))
  ;; At an headline with special movement, first move before tags,
  ;; then at the end of line, rinse, repeat.  However, never go past
  ;; ellipsis.
  (should
   (org-test-with-temp-text "* Headline1 :tag:\n"
     (let ((org-special-ctrl-a/e t))
       (and (progn (org-end-of-line) (looking-at-p " :tag:"))
	    (progn (org-end-of-line) (eolp))
	    (progn (org-end-of-line) (looking-at-p " :tag:"))))))
  (should
   (org-test-with-temp-text "* Headline1 :tag:\n"
     (let ((org-special-ctrl-a/e '(nil . t)))
       (and (progn (org-end-of-line) (looking-at-p " :tag:"))
	    (progn (org-end-of-line) (eolp))
	    (progn (org-end-of-line) (looking-at-p " :tag:"))))))
  (should-not
   (org-test-with-temp-text "* Headline1 :tag:\n"
     (let ((org-special-ctrl-a/e '(nil . nil)))
       (and (progn (org-end-of-line) (looking-at-p " :tag:"))
	    (progn (org-end-of-line) (eolp))
	    (progn (org-end-of-line) (looking-at-p " :tag:"))))))
  (should
   (org-test-with-temp-text "* Headline2a :tag:\n** Sub"
     (org-overview)
     (let ((org-special-ctrl-a/e t))
       (org-end-of-line)
       (org-end-of-line)
       (= 1 (line-beginning-position)))))
  ;; At an headline, with reversed movement, first go to end of line,
  ;; then before tags.  However, never go past ellipsis.
  (should
   (org-test-with-temp-text "* Headline3 :tag:\n"
     (let ((org-special-ctrl-a/e 'reversed)
	   (this-command last-command))
       (and (progn (org-end-of-line) (eolp))
	    (progn (org-end-of-line) (looking-at-p " :tag:"))))))
  (should
   (org-test-with-temp-text "* Headline3 :tag:\n"
     (let ((org-special-ctrl-a/e '(nil . reversed))
	   (this-command last-command))
       (and (progn (org-end-of-line) (eolp))
	    (progn (org-end-of-line) (looking-at-p " :tag:"))))))
  (should-not
   (org-test-with-temp-text "* Headline3 :tag:\n"
     (let ((org-special-ctrl-a/e '(nil . t))
	   (this-command last-command))
       (and (progn (org-end-of-line) (eolp))
	    (progn (org-end-of-line) (looking-at-p " :tag:"))))))
  (should
   (org-test-with-temp-text "* Headline2a :tag:\n** Sub"
     (org-overview)
     (let ((org-special-ctrl-a/e 'reversed))
       (org-end-of-line)
       (= 1 (line-beginning-position)))))
  ;; At a block without hidden contents.
  (should
   (org-test-with-temp-text "#+BEGIN_CENTER\nContents\n#+END_CENTER"
     (progn (org-end-of-line) (eolp))))
  ;; At a block with hidden contents.
  (should-not
   (org-test-with-temp-text "#+BEGIN_CENTER\nContents\n#+END_CENTER"
     (let ((org-special-ctrl-a/e t))
       (org-hide-block-toggle)
       (org-end-of-line)
       (eobp))))
  ;; Get past invisible characters at the end of line.
  (should
   (org-test-with-temp-text "[[https://orgmode.org]]"
     (org-end-of-line)
     (eolp))))
(ert-deftest test-org/open-line ()
  "Test `org-open-line' specifications."
  ;; Call `open-line' outside of tables.
  (should
   (equal "\nText"
	  (org-test-with-temp-text "Text"
	    (org-open-line 1)
	    (buffer-string))))
  ;; At a table, create a row above.
  (should
   (equal "\n|   |\n| a |"
	  (org-test-with-temp-text "\n| a |"
	    (org-open-line 1)
	    (buffer-string))))
  ;; At the very first character of the buffer, also call `open-line'.
  (should
   (equal "\n| a |"
	  (org-test-with-temp-text "| a |"
	    (org-open-line 1)
	    (buffer-string))))
  ;; Narrowing does not count.
  (should
   (equal "Text\n|   |\n| a |"
	  (org-test-with-temp-text "Text\n| a |"
	    (narrow-to-region (point) (point-max))
	    (org-open-line 1)
	    (widen)
	    (buffer-string)))))
(ert-deftest test-org/forward-sentence ()
  "Test `org-forward-sentence' specifications."
  ;; At the end of a table cell, move to the end of the next one.
  (should
   (org-test-with-temp-text "| a | b |"
     (org-forward-sentence)
     (looking-at " |$")))
  ;; Elsewhere in a cell, move to its end.
  (should
   (org-test-with-temp-text "| ac | b |"
     (org-forward-sentence)
     (looking-at " | b |$")))
  ;; Otherwise, simply call `forward-sentence'.
  (should
   (org-test-with-temp-text "Sentence 1.  Sentence 2."
     (org-forward-sentence)
     (looking-at "  Sentence 2.")))
  (should
   (org-test-with-temp-text "Sentence 1.  Sentence 2."
     (org-forward-sentence)
     (org-forward-sentence)
     (eobp)))
  ;; At the end of an element, jump to the next one, without stopping
  ;; on blank lines in-between.
  (should
   (org-test-with-temp-text "Paragraph 1.\n\nParagraph 2."
     (org-forward-sentence)
     (eobp)))
  ;; Headlines are considered to be sentences by themselves, even if
  ;; they do not end with a full stop.
  (should
   (equal
    "* Headline"
    (org-test-with-temp-text "* Headline\nSentence."
      (org-forward-sentence)
      (buffer-substring-no-properties (line-beginning-position) (point)))))
  (should
   (org-test-with-temp-text "* Headline\nSentence."
     (org-forward-sentence)
     (eobp)))
  (should
   (org-test-with-temp-text "Sentence.\n\n* Headline\n\nSentence 2."
     (org-forward-sentence)
     (and (org-at-heading-p) (eolp)))))
(ert-deftest test-org/backward-sentence ()
  "Test `org-backward-sentence' specifications."
  ;; At the beginning of a table cell, move to the beginning of the
  ;; previous one.
  (should
   (org-test-with-temp-text "| a | b |"
     (org-backward-sentence)
     (looking-at "a | b |$")))
  ;; Elsewhere in a cell, move to its beginning.
  (should
   (org-test-with-temp-text "| a | bc |"
     (org-backward-sentence)
     (looking-at "bc |$")))
  ;; Otherwise, simply call `backward-sentence'.
  (should
   (org-test-with-temp-text "Sentence 1.  Sentence 2."
     (org-backward-sentence)
     (looking-at "Sentence 2.")))
  (should
   (org-test-with-temp-text "Sentence 1.  Sentence 2."
     (org-backward-sentence)
     (org-backward-sentence)
     (bobp)))
  ;; Make sure to hit the beginning of a sentence on the same line as
  ;; an item.
  (should
   (org-test-with-temp-text "- Line 1\n  line 2."
     (org-backward-sentence)
     (looking-at "Line 1"))))
(ert-deftest test-org/forward-paragraph ()
  "Test `org-forward-paragraph' specifications."
  ;; At end of buffer, do not return an error.
  (should
   (org-test-with-temp-text "Paragraph"
     (goto-char (point-max))
     (org-forward-paragraph)
     t))
  ;; Standard test.
  (should
   (org-test-with-temp-text "P1\n\nP2\n\nP3"
     (org-forward-paragraph)
     (looking-at "P2")))
  ;; Ignore depth.
  (should
   (org-test-with-temp-text "#+BEGIN_CENTER\nP1\n#+END_CENTER\nP2"
     (org-forward-paragraph)
     (looking-at "P1")))
  ;; Do not enter elements with invisible contents.
  (should
   (org-test-with-temp-text "#+BEGIN_CENTER\nP1\n\nP2\n#+END_CENTER\nP3"
     (org-hide-block-toggle)
     (org-forward-paragraph)
     (looking-at "P3")))
  ;; On an affiliated keyword, jump to the beginning of the element.
  (should
   (org-test-with-temp-text "#+name: para\n#+caption: caption\nPara"
     (org-forward-paragraph)
     (looking-at "Para")))
  ;; On an item or a footnote definition, move to the second element
  ;; inside, if any.
  (should
   (org-test-with-temp-text "- Item1\n\n  Paragraph\n- Item2"
     (org-forward-paragraph)
     (looking-at "  Paragraph")))
  (should
   (org-test-with-temp-text "[fn:1] Def1\n\nParagraph\n\n[fn:2] Def2"
     (org-forward-paragraph)
     (looking-at "Paragraph")))
  ;; On an item, or a footnote definition, when the first line is
  ;; empty, move to the first item.
  (should
   (org-test-with-temp-text "- \n\n  Paragraph\n- Item2"
     (org-forward-paragraph)
     (looking-at "  Paragraph")))
  (should
   (org-test-with-temp-text "[fn:1]\n\nParagraph\n\n[fn:2] Def2"
     (org-forward-paragraph)
     (looking-at "Paragraph")))
  ;; On a table (resp. a property drawer) do not move through table
  ;; rows (resp. node properties).
  (should
   (org-test-with-temp-text "| a | b |\n| c | d |\nParagraph"
     (org-forward-paragraph)
     (looking-at "Paragraph")))
  (should
   (org-test-with-temp-text
       "* H\n:PROPERTIES:\n:prop: value\n:END:\nParagraph"
     (org-forward-paragraph)
     (looking-at "Paragraph")))
  ;; On a verse or source block, stop after blank lines.
  (should
   (org-test-with-temp-text "#+BEGIN_VERSE\nL1\n\nL2\n#+END_VERSE"
     (org-forward-paragraph)
     (looking-at "L2")))
  (should
   (org-test-with-temp-text "#+BEGIN_SRC\nL1\n\nL2\n#+END_SRC"
     (org-forward-paragraph)
     (looking-at "L2"))))
(ert-deftest test-org/backward-paragraph ()
  "Test `org-backward-paragraph' specifications."
  ;; Do not error at beginning of buffer.
  (should
   (org-test-with-temp-text "Paragraph"
     (org-backward-paragraph)
     t))
  ;; Regular test.
  (should
   (org-test-with-temp-text "P1\n\nP2\n\nP3"
     (org-backward-paragraph)
     (looking-at "P3")))
  (should
   (org-test-with-temp-text "P1\n\nP2\n\nP3"
     (org-backward-paragraph)
     (looking-at-p "P2")))
  ;; Ignore depth.
  (should
   (org-test-with-temp-text "P1\n\n#+BEGIN_CENTER\nP2\n#+END_CENTER\nP3"
     (org-backward-paragraph)
     (looking-at-p "P2")))
  ;; Ignore invisible elements.
  (should
   (org-test-with-temp-text "* H1\n  P1\n* H2"
     (org-cycle)
     (goto-char (point-max))
     (beginning-of-line)
     (org-backward-paragraph)
     (bobp)))
  ;; On an affiliated keyword, jump to the first one.
  (should
   (org-test-with-temp-text
       "P1\n#+name: n\n#+caption: c1\n#+caption: c2\nP2"
     (org-backward-paragraph)
     (looking-at-p "#\\+name")))
  ;; On the second element in an item or a footnote definition, jump
  ;; to item or the definition.
  (should
   (org-test-with-temp-text "- line1\n\n  line2"
     (org-backward-paragraph)
     (looking-at-p "- line1")))
  (should
   (org-test-with-temp-text "[fn:1] line1\n\n  line2"
     (org-backward-paragraph)
     (looking-at-p "\\[fn:1\\] line1")))
  ;; On a table (resp. a property drawer), ignore table rows
  ;; (resp. node properties).
  (should
   (org-test-with-temp-text "| a | b |\n| c | d |\nP1"
     (org-backward-paragraph)
     (bobp)))
  (should
   (org-test-with-temp-text "* H\n:PROPERTIES:\n:prop: value\n:END:\nP1"
     (org-backward-paragraph)
     (looking-at-p ":PROPERTIES:")))
  ;; On a comment, example, src and verse blocks, stop before blank
  ;; lines.
  (should
   (org-test-with-temp-text "#+BEGIN_VERSE\nL1\n\nL2\n\nL3\n#+END_VERSE"
     (org-backward-paragraph)
     (looking-at-p "L2")))
  (should
   (org-test-with-temp-text "#+BEGIN_SRC\nL1\n\nL2\n\nL3#+END_SRC"
     (org-backward-paragraph)
     (looking-at-p "L2")))
  ;; In comment, example, export, src and verse blocks, stop below
  ;; opening line when called from within the block.
  (should
   (org-test-with-temp-text "#+BEGIN_VERSE\nL1\nL2\n#+END_VERSE"
     (org-backward-paragraph)
     (looking-at-p "L1")))
  (should
   (org-test-with-temp-text "#+BEGIN_EXAMPLE\nL1\nL2\n#+END_EXAMPLE"
     (org-backward-paragraph)
     (looking-at-p "L1")))
  ;; When called from the opening line itself, however, move to
  ;; beginning of block.
  (should
   (org-test-with-temp-text "#+BEGIN_EXAMPLE\nL1\n#+END_EXAMPLE"
     (org-backward-paragraph)
     (bobp)))
  ;; Pathological case: on an empty heading, move to its beginning.
  (should
   (org-test-with-temp-text "* H"
     (org-backward-paragraph)
     (bobp))))
(ert-deftest test-org/forward-element ()
  "Test `org-forward-element' specifications."
  ;; 1. At EOB: should error.
  (org-test-with-temp-text "Some text\n"
    (goto-char (point-max))
    (should-error (org-forward-element)))
  ;; 2. Standard move: expected to ignore blank lines.
  (org-test-with-temp-text "First paragraph.\n\n\nSecond paragraph."
    (org-forward-element)
    (should (looking-at (regexp-quote "Second paragraph."))))
  ;; 3. Headline tests.
  (org-test-with-temp-text "
* Head 1
** Head 1.1
*** Head 1.1.1
** Head 1.2"
    ;; 3.1. At an headline beginning: move to next headline at the
    ;;      same level.
    (goto-line 3)
    (org-forward-element)
    (should (looking-at (regexp-quote "** Head 1.2")))
    ;; 3.2. At an headline beginning: move to parent headline if no
    ;;      headline at the same level.
    (goto-line 3)
    (org-forward-element)
    (should (looking-at (regexp-quote "** Head 1.2"))))
  ;; 4. Greater element tests.
  (org-test-with-temp-text
      "#+BEGIN_CENTER\nInside.\n#+END_CENTER\n\nOutside."
    ;; 4.1. At a greater element: expected to skip contents.
    (org-forward-element)
    (should (looking-at (regexp-quote "Outside.")))
    ;; 4.2. At the end of greater element contents: expected to skip
    ;;      to the end of the greater element.
    (goto-line 2)
    (org-forward-element)
    (should (looking-at (regexp-quote "Outside."))))
  ;; 5. List tests.
  (org-test-with-temp-text "
- item1
  - sub1
  - sub2
  - sub3
  Inner paragraph.
- item2
Outside."
    ;; 5.1. At list top point: expected to move to the element after
    ;;      the list.
    (goto-line 2)
    (org-forward-element)
    (should (looking-at (regexp-quote "Outside.")))
    ;; 5.2. Special case: at the first line of a sub-list, but not at
    ;;      beginning of line, move to next item.
    (goto-line 2)
    (forward-char)
    (org-forward-element)
    (should (looking-at "- item2"))
    (goto-line 4)
    (forward-char)
    (org-forward-element)
    (should (looking-at "  - sub2"))
    ;; 5.3 At sub-list beginning: expected to move after the sub-list.
    (goto-line 4)
    (org-forward-element)
    (should (looking-at (regexp-quote "  Inner paragraph.")))
    ;; 5.4. At sub-list end: expected to move outside the sub-list.
    (goto-line 8)
    (org-forward-element)
    (should (looking-at (regexp-quote "  Inner paragraph.")))
    ;; 5.5. At an item: expected to move to next item, if any.
    (goto-line 6)
    (org-forward-element)
    (should (looking-at "  - sub3"))))
(ert-deftest test-org/backward-element ()
  "Test `org-backward-element' specifications."
  ;; 1. Should error at BOB.
  (org-test-with-temp-text "    \nParagraph."
    (should-error (org-backward-element)))
  ;; 2. Should move at BOB when called on the first element in buffer.
  (should
   (org-test-with-temp-text "\n#+TITLE: test"
     (progn (forward-line)
	    (org-backward-element)
	    (bobp))))
  ;; 3. Not at the beginning of an element: move at its beginning.
  (org-test-with-temp-text "Paragraph1.\n\nParagraph2."
    (goto-line 3)
    (end-of-line)
    (org-backward-element)
    (should (looking-at (regexp-quote "Paragraph2."))))
  ;; 4. Headline tests.
  (org-test-with-temp-text "
* Head 1
** Head 1.1
*** Head 1.1.1
** Head 1.2"
    ;; 4.1. At an headline beginning: move to previous headline at the
    ;;      same level.
    (goto-line 5)
    (org-backward-element)
    (should (looking-at (regexp-quote "** Head 1.1")))
    ;; 4.2. At an headline beginning: move to parent headline if no
    ;;      headline at the same level.
    (goto-line 3)
    (org-backward-element)
    (should (looking-at (regexp-quote "* Head 1")))
    ;; 4.3. At the first top-level headline: should error.
    (goto-line 2)
    (should-error (org-backward-element)))
  ;; 5. At beginning of first element inside a greater element:
  ;;    expected to move to greater element's beginning.
  (org-test-with-temp-text "Before.\n#+BEGIN_CENTER\nInside.\n#+END_CENTER"
    (goto-line 3)
    (org-backward-element)
    (should (looking-at "#\\+BEGIN_CENTER")))
  ;; 6. At the beginning of the first element in a section: should
  ;;    move back to headline, if any.
  (should
   (org-test-with-temp-text "#+TITLE: test\n* Headline\n\nParagraph"
     (progn (goto-char (point-max))
	    (beginning-of-line)
	    (org-backward-element)
	    (org-at-heading-p))))
  ;; 7. List tests.
  (org-test-with-temp-text "
- item1
  - sub1
  - sub2
  - sub3
  Inner paragraph.
- item2
Outside."
    ;; 7.1. At beginning of sub-list: expected to move to the
    ;;      paragraph before it.
    (goto-line 4)
    (org-backward-element)
    (should (looking-at "item1"))
    ;; 7.2. At an item in a list: expected to move at previous item.
    (goto-line 8)
    (org-backward-element)
    (should (looking-at "  - sub2"))
    (goto-line 12)
    (org-backward-element)
    (should (looking-at "- item1"))
    ;; 7.3. At end of list/sub-list: expected to move to list/sub-list
    ;;      beginning.
    (goto-line 10)
    (org-backward-element)
    (should (looking-at "  - sub1"))
    (goto-line 15)
    (org-backward-element)
    (should (looking-at "- item1"))
    ;; 7.4. At blank-lines before list end: expected to move to top
    ;; item.
    (goto-line 14)
    (org-backward-element)
    (should (looking-at "- item1"))))
(ert-deftest test-org/up-element ()
  "Test `org-up-element' specifications."
  ;; 1. At BOB or with no surrounding element: should error.
  (org-test-with-temp-text "Paragraph."
    (should-error (org-up-element)))
  (org-test-with-temp-text "* Head1\n* Head2"
    (goto-line 2)
    (should-error (org-up-element)))
  (org-test-with-temp-text "Paragraph1.\n\nParagraph2."
    (goto-line 3)
    (should-error (org-up-element)))
  ;; 2. At an headline: move to parent headline.
  (org-test-with-temp-text "* Head1\n** Sub-Head1\n** Sub-Head2"
    (goto-line 3)
    (org-up-element)
    (should (looking-at "\\* Head1")))
  ;; 3. Inside a greater element: move to greater element beginning.
  (org-test-with-temp-text
      "Before.\n#+BEGIN_CENTER\nParagraph1\nParagraph2\n#+END_CENTER\n"
    (goto-line 3)
    (org-up-element)
    (should (looking-at "#\\+BEGIN_CENTER")))
  ;; 4. List tests.
  (org-test-with-temp-text "* Top
- item1
  - sub1
  - sub2
    Paragraph within sub2.
- item2"
    ;; 4.1. Within an item: move to the item beginning.
    (goto-line 8)
    (org-up-element)
    (should (looking-at "  - sub2"))
    ;; 4.2. At an item in a sub-list: move to parent item.
    (goto-line 4)
    (org-up-element)
    (should (looking-at "- item1"))
    ;; 4.3. At an item in top list: move to beginning of whole list.
    (goto-line 10)
    (org-up-element)
    (should (looking-at "- item1"))
    ;; 4.4. Special case.  At very top point: should move to parent of
    ;;      list.
    (goto-line 2)
    (org-up-element)
    (should (looking-at "\\* Top"))))
(ert-deftest test-org/down-element ()
  "Test `org-down-element' specifications."
  ;; Error when the element hasn't got a recursive type.
  (org-test-with-temp-text "Paragraph."
    (should-error (org-down-element)))
  ;; Error when the element has no contents
  (org-test-with-temp-text "* Headline"
    (should-error (org-down-element)))
  ;; When at a plain-list, move to first item.
  (org-test-with-temp-text "- Item 1\n  - Item 1.1\n  - Item 2.2"
    (goto-line 2)
    (org-down-element)
    (should (looking-at " - Item 1.1")))
  (org-test-with-temp-text "#+NAME: list\n- Item 1"
    (org-down-element)
    (should (looking-at " Item 1")))
  ;; When at a table, move to first row
  (org-test-with-temp-text "#+NAME: table\n| a | b |"
    (org-down-element)
    (should (looking-at " a | b |")))
  ;; Otherwise, move inside the greater element.
  (org-test-with-temp-text "#+BEGIN_CENTER\nParagraph.\n#+END_CENTER"
    (org-down-element)
    (should (looking-at "Paragraph"))))
(ert-deftest test-org/drag-element-backward ()
  "Test `org-drag-element-backward' specifications."
  ;; Standard test.
  (should
   (equal
    "#+key2: val2\n#+key1: val1\n#+key3: val3"
    (org-test-with-temp-text "#+key1: val1\n#+key2: val2\n#+key3: val3"
      (org-drag-element-backward)
      (buffer-string))))
  (should
   (equal
    "#+BEGIN_CENTER\n#+B: 2\n#+A: 1\n#+END_CENTER"
    (org-test-with-temp-text
	"#+BEGIN_CENTER\n#+A: 1\n#+B: 2\n#+END_CENTER"
      (org-drag-element-backward)
      (buffer-string))))
  ;; Preserve blank lines.
  (should
   (equal "Paragraph 2\n\n\nPara1\n\nPara3"
	  (org-test-with-temp-text "Para1\n\n\nParagraph 2\n\nPara3"
	    (org-drag-element-backward)
	    (buffer-string))))
  ;; Preserve column.
  (should
   (org-test-with-temp-text "#+key1: v\n#+key2: v\n#+key3: v"
     (org-drag-element-backward)
     (looking-at-p "2")))
  ;; Error when trying to move first element of buffer.
  (should-error
   (org-test-with-temp-text "Paragraph 1.\n\nParagraph 2."
     (org-drag-element-backward))
   :type 'user-error)
  ;; Error when trying to swap nested elements.
  (should-error
   (org-test-with-temp-text "#+BEGIN_CENTER\nTest.\n#+END_CENTER"
     (org-drag-element-backward))
   :type 'user-error)
  ;; Error when trying to swap an headline element and a non-headline
  ;; element.
  (should-error
   (org-test-with-temp-text "Test.\n* Head 1"
     (org-drag-element-backward))
   :type 'error)
  ;; Error when called before first element.
  (should-error
   (org-test-with-temp-text "\n"
     (org-drag-element-backward))
   :type 'user-error)
  ;; Preserve visibility of elements and their contents.
  (should
   (equal '((63 . 82) (26 . 48))
	  (org-test-with-temp-text "
#+BEGIN_CENTER
Text.
#+END_CENTER
- item 1
  #+BEGIN_QUOTE
  Text.
  #+END_QUOTE"
	    (while (search-forward "BEGIN_" nil t) (org-cycle))
	    (search-backward "- item 1")
	    (org-drag-element-backward)
	    (mapcar (lambda (ov) (cons (overlay-start ov) (overlay-end ov)))
		    (overlays-in (point-min) (point-max))))))
  ;; Pathological case: handle call with point in blank lines right
  ;; after a headline.
  (should
   (equal "* H2\n\n* H1\nText\n"
	  (org-test-with-temp-text "* H1\nText\n* H2\n\n"
	    (org-drag-element-backward)
	    (buffer-string)))))
(ert-deftest test-org/drag-element-forward ()
  "Test `org-drag-element-forward' specifications."
  ;; 1. Error when trying to move first element of buffer.
  (org-test-with-temp-text "Paragraph 1.\n\nParagraph 2."
    (goto-line 3)
    (should-error (org-drag-element-forward)))
  ;; 2. Error when trying to swap nested elements.
  (org-test-with-temp-text "#+BEGIN_CENTER\nTest.\n#+END_CENTER"
    (forward-line)
    (should-error (org-drag-element-forward)))
  ;; 3. Error when trying to swap a non-headline element and an
  ;;    headline.
  (org-test-with-temp-text "Test.\n* Head 1"
    (should-error (org-drag-element-forward)))
  ;; 4. Error when called before first element.
  (should-error
   (org-test-with-temp-text "\n"
     (forward-line)
     (org-drag-element-backward))
   :type 'user-error)
  ;; 5. Otherwise, swap elements, preserving column and blank lines
  ;;    between elements.
  (org-test-with-temp-text "Paragraph 1\n\n\nPara2\n\nPara3"
    (search-forward "graph")
    (org-drag-element-forward)
    (should (equal (buffer-string) "Para2\n\n\nParagraph 1\n\nPara3"))
    (should (looking-at " 1")))
  ;; 5. Preserve visibility of elements and their contents.
  (org-test-with-temp-text "
#+BEGIN_CENTER
Text.
#+END_CENTER
- item 1
  #+BEGIN_QUOTE
  Text.
  #+END_QUOTE"
    (while (search-forward "BEGIN_" nil t) (org-cycle))
    (search-backward "#+BEGIN_CENTER")
    (org-drag-element-forward)
    (should
     (equal
      '((63 . 82) (26 . 48))
      (mapcar (lambda (ov) (cons (overlay-start ov) (overlay-end ov)))
	      (overlays-in (point-min) (point-max)))))))
(ert-deftest test-org/next-block ()
  "Test `org-next-block' specifications."
  ;; Regular test.
  (should
   (org-test-with-temp-text "Paragraph\n#+BEGIN_CENTER\ncontents\n#+END_CENTER"
     (org-next-block 1)
     (looking-at "#\\+BEGIN_CENTER")))
  ;; Ignore case.
  (should
   (org-test-with-temp-text "Paragraph\n#+begin_center\ncontents\n#+end_center"
     (let ((case-fold-search nil))
       (org-next-block 1)
       (looking-at "#\\+begin_center"))))
  ;; Ignore current line.
  (should
   (org-test-with-temp-text
       "#+BEGIN_QUOTE\n#+END_QUOTE\n#+BEGIN_CENTER\n#+END_CENTER"
     (org-next-block 1)
     (looking-at "#\\+BEGIN_CENTER")))
  ;; Throw an error when no block is found.
  (should-error
   (org-test-with-temp-text "Paragraph"
     (org-next-block 1)))
  ;; With an argument, skip many blocks at once.
  (should
   (org-test-with-temp-text
       "Start\n#+BEGIN_CENTER\nA\n#+END_CENTER\n#+BEGIN_QUOTE\nB\n#+END_QUOTE"
     (org-next-block 2)
     (looking-at "#\\+BEGIN_QUOTE")))
  ;; With optional argument BLOCK-REGEXP, filter matched blocks.
  (should
   (org-test-with-temp-text
       "Start\n#+BEGIN_CENTER\nA\n#+END_CENTER\n#+BEGIN_QUOTE\nB\n#+END_QUOTE"
     (org-next-block 1 nil "^[ \t]*#\\+BEGIN_QUOTE")
     (looking-at "#\\+BEGIN_QUOTE")))
  ;; Optional argument is also case-insensitive.
  (should
   (org-test-with-temp-text
       "Start\n#+BEGIN_CENTER\nA\n#+END_CENTER\n#+begin_quote\nB\n#+end_quote"
     (let ((case-fold-search nil))
       (org-next-block 1 nil "^[ \t]*#\\+BEGIN_QUOTE")
       (looking-at "#\\+begin_quote")))))
(ert-deftest test-org/insert-structure-template ()
  "Test `org-insert-structure-template'."
  ;; Test in empty buffer.
  (should
   (string= "#+begin_foo\n#+end_foo\n"
	    (org-test-with-temp-text ""
	      (org-insert-structure-template "foo")
	      (buffer-string))))
  ;; Test with multiple lines in buffer.
  (should
   (string= "#+begin_foo\nI'm a paragraph\n#+end_foo\n\nI'm a second paragraph"
	    (org-test-with-temp-text "I'm a paragraph\n\nI'm a second paragraph"
	      (transient-mark-mode 1)
	      (org-mark-element)
	      (org-insert-structure-template "foo")
	      (buffer-string))))
  ;; Mark only the current line.
  (should
   (string= "#+begin_foo\nI'm a paragraph\n#+end_foo\n\nI'm a second paragraph"
	    (org-test-with-temp-text "I'm a paragraph\n\nI'm a second paragraph"
	      (transient-mark-mode 1)
	      (set-mark (point-min))
	      (end-of-line)
	      (org-insert-structure-template "foo")
	      (buffer-string))))
  ;; Middle of paragraph.
  (should
   (string= "p1\n#+begin_foo\np2\n#+end_foo\np3"
	    (org-test-with-temp-text "p1\np2\np3"
	      (set-mark (line-beginning-position))
	      (end-of-line)
	      (activate-mark)
	      (org-insert-structure-template "foo")
	      (buffer-string))))
  ;; Test with text in buffer, no region, no final newline.
  (should
   (string= "#+begin_foo\nI'm a paragraph.\n#+end_foo\n"
	    (org-test-with-temp-text "I'm a paragraph."
	      (org-mark-element)
	      (org-insert-structure-template "foo")
	      (buffer-string))))
  ;; Test with text in buffer and region set.
  (should
   (string= "#+begin_foo\nI'm a paragraph\n\nI'm a second paragrah\n#+end_foo\n"
	    (org-test-with-temp-text "I'm a paragraph\n\nI'm a second paragrah"
	      (set-mark (point))
	      (goto-char (point-max))
	      (org-insert-structure-template "foo")
	      (buffer-string))))
  ;; Test with example escaping.
  (should
   (string= "#+begin_example\n,* Heading\n#+end_example\n"
	    (org-test-with-temp-text "* Heading"
	      (org-mark-element)
	      (org-insert-structure-template "example")
	      (buffer-string))))
  ;; Test with indentation.
  (should
   (string= "  #+begin_foo\n  This is a paragraph\n  #+end_foo\n"
	    (org-test-with-temp-text "  This is a paragraph"
	      (org-mark-element)
	      (org-insert-structure-template "foo")
	      (buffer-string))))
  (should
   (string= " #+begin_foo\n Line 1\n  Line2\n #+end_foo\n"
	    (org-test-with-temp-text " Line 1\n  Line2"
	      (org-mark-element)
	      (org-insert-structure-template "foo")
	      (buffer-string))))
  ;; Test point location.
  (should
   (string= "#+begin_foo\n"
	    (org-test-with-temp-text ""
	      (org-insert-structure-template "foo")
	      (buffer-substring (point-min) (point)))))
  (should
   (string= "#+begin_src "
	    (org-test-with-temp-text ""
	      (org-insert-structure-template "src")
	      (buffer-substring (point-min) (point))))))
(ert-deftest test-org/previous-block ()
  "Test `org-previous-block' specifications."
  ;; Regular test.
  (should
   (org-test-with-temp-text "#+BEGIN_CENTER\ncontents\n#+END_CENTER\n"
     (org-previous-block 1)
     (looking-at "#\\+BEGIN_CENTER")))
  ;; Ignore case.
  (should
   (org-test-with-temp-text "#+begin_center\ncontents\n#+end_center\n"
     (let ((case-fold-search nil))
       (org-previous-block 1)
       (looking-at "#\\+begin_center"))))
  ;; Ignore current line.
  (should
   (org-test-with-temp-text
       "#+BEGIN_QUOTE\n#+END_QUOTE\n#+BEGIN_CENTER\n#+END_CENTER"
     (org-previous-block 1)
     (looking-at "#\\+BEGIN_QUOTE")))
  ;; Throw an error when no block is found.
  (should-error
   (org-test-with-temp-text "Paragraph"
     (org-previous-block 1)))
  ;; With an argument, skip many blocks at once.
  (should
   (org-test-with-temp-text
       "#+BEGIN_CENTER\nA\n#+END_CENTER\n#+BEGIN_QUOTE\nB\n#+END_QUOTE\n"
     (org-previous-block 2)
     (looking-at "#\\+BEGIN_CENTER")))
  ;; With optional argument BLOCK-REGEXP, filter matched blocks.
  (should
   (org-test-with-temp-text
       "#+BEGIN_CENTER\nA\n#+END_CENTER\n#+BEGIN_QUOTE\nB\n#+END_QUOTE\n