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;;; test-org-element.el --- Tests for org-element.el
;; Copyright (C) 2012 Nicolas Goaziou
;; Author: Nicolas Goaziou <n.goaziou at gmail dot com>
;; 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 <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
(unless (featurep 'org-element)
(signal 'missing-test-dependency "org-element"))
;;; Tests:
;;;; Headlines
(ert-deftest test-org-element/headline-quote-keyword ()
"Test QUOTE keyword recognition."
;; Reference test.
(org-test-with-temp-text "* Headline"
(let ((org-quote-string "QUOTE"))
(should-not (org-element-property :quotedp (org-element-at-point)))))
;; Standard position.
(org-test-with-temp-text "* QUOTE Headline"
(let ((org-quote-string "QUOTE"))
(let ((headline (org-element-at-point)))
(should (org-element-property :quotedp headline))
;; Test removal from raw value.
(should (equal (org-element-property :raw-value headline) "Headline"))))
;; Case sensitivity.
(let ((org-quote-string "Quote"))
(should-not (org-element-property :quotedp (org-element-at-point)))))
;; With another keyword.
(org-test-with-temp-text "* TODO QUOTE Headline"
(let ((org-quote-string "QUOTE")
(org-todo-keywords '((sequence "TODO" "DONE"))))
(should (org-element-property :quotedp (org-element-at-point))))))
(ert-deftest test-org-element/headline-comment-keyword ()
"Test COMMENT keyword recognition."
;; Reference test.
(org-test-with-temp-text "* Headline"
(let ((org-comment-string "COMMENT"))
(should-not (org-element-property :commentedp (org-element-at-point)))))
;; Standard position.
(org-test-with-temp-text "* COMMENT Headline"
(let ((org-comment-string "COMMENT"))
(let ((headline (org-element-at-point)))
(should (org-element-property :commentedp headline))
;; Test removal from raw value.
(should (equal (org-element-property :raw-value headline) "Headline"))))
;; Case sensitivity.
(let ((org-comment-string "Comment"))
(should-not (org-element-property :commentedp (org-element-at-point)))))
;; With another keyword.
(org-test-with-temp-text "* TODO COMMENT Headline"
(let ((org-comment-string "COMMENT")
(org-todo-keywords '((sequence "TODO" "DONE"))))
(should (org-element-property :commentedp (org-element-at-point))))))
(ert-deftest test-org-element/headline-archive-tag ()
"Test ARCHIVE tag recognition."
;; Reference test.
(org-test-with-temp-text "* Headline"
(let ((org-archive-tag "ARCHIVE"))
(should-not (org-element-property :archivedp (org-element-at-point)))))
;; Single tag.
(org-test-with-temp-text "* Headline :ARCHIVE:"
(let ((org-archive-tag "ARCHIVE"))
(let ((headline (org-element-at-point)))
(should (org-element-property :archivedp headline))
;; Test tag removal.
(should-not (org-element-property :tags headline))))
(let ((org-archive-tag "Archive"))
(should-not (org-element-property :archivedp (org-element-at-point)))))
;; Multiple tags.
(org-test-with-temp-text "* Headline :test:ARCHIVE:"
(let ((org-archive-tag "ARCHIVE"))
(let ((headline (org-element-at-point)))
(should (org-element-property :archivedp headline))
;; Test tag removal.
(should (equal (org-element-property :tags headline) ":test:"))))))
;;;; Example-blocks and Src-blocks
(ert-deftest test-org-element/block-switches ()
"Test `example-block' and `src-block' switches parsing."
(let ((org-coderef-label-format "(ref:%s)"))
;; 1. Test "-i" switch.
(org-test-with-temp-text "#+BEGIN_SRC emacs-lisp\n(+ 1 1)\n#+END_SRC"
(let ((element (org-element-current-element)))
(should-not (org-element-property :preserve-indent element))))
(org-test-with-temp-text "#+BEGIN_SRC emacs-lisp -i\n(+ 1 1)\n#+END_SRC"
(let ((element (org-element-current-element)))
(should (org-element-property :preserve-indent element))))
(org-test-with-temp-text "#+BEGIN_EXAMPLE\nText.\n#+END_EXAMPLE"
(let ((element (org-element-current-element)))
(should-not (org-element-property :preserve-indent element))))
(org-test-with-temp-text "#+BEGIN_EXAMPLE -i\nText.\n#+END_EXAMPLE"
(let ((element (org-element-current-element)))
(should (org-element-property :preserve-indent element))))
;; 2. "-n -r -k" combination should number lines, retain labels but
;; not use them in coderefs.
(org-test-with-temp-text "#+BEGIN_EXAMPLE -n -r -k\nText.\N#+END_EXAMPLE"
(let ((element (org-element-current-element)))
(should (and (org-element-property :number-lines element)
(org-element-property :retain-labels element)
(not (org-element-property :use-labels element))))))
(org-test-with-temp-text
"#+BEGIN_SRC emacs-lisp -n -r -k\n(+ 1 1)\n#+END_SRC"
(let ((element (org-element-current-element)))
(should (and (org-element-property :number-lines element)
(org-element-property :retain-labels element)
(not (org-element-property :use-labels element))))))
;; 3. "-n -r" combination should number-lines remove labels and not
;; use them in coderefs.
(org-test-with-temp-text "#+BEGIN_EXAMPLE -n -r\nText.\n#+END_EXAMPLE"
(let ((element (org-element-current-element)))
(should (and (org-element-property :number-lines element)
(not (org-element-property :retain-labels element))
(not (org-element-property :use-labels element))))))
(org-test-with-temp-text "#+BEGIN_SRC emacs-lisp -n -r\n(+ 1 1)\n#+END_SRC"
(let ((element (org-element-current-element)))
(should (and (org-element-property :number-lines element)
(not (org-element-property :retain-labels element))
(not (org-element-property :use-labels element))))))
;; 4. "-n" or "+n" should number lines, retain labels and use them
;; in coderefs.
(org-test-with-temp-text "#+BEGIN_EXAMPLE -n\nText.\n#+END_EXAMPLE"
(let ((element (org-element-current-element)))
(should (and (org-element-property :number-lines element)
(org-element-property :retain-labels element)
(org-element-property :use-labels element)))))
(org-test-with-temp-text "#+BEGIN_SRC emacs-lisp -n\n(+ 1 1)\n#+END_SRC"
(let ((element (org-element-current-element)))
(should (and (org-element-property :number-lines element)
(org-element-property :retain-labels element)
(org-element-property :use-labels element)))))
(org-test-with-temp-text "#+BEGIN_EXAMPLE +n\nText.\n#+END_EXAMPLE"
(let ((element (org-element-current-element)))
(should (and (org-element-property :number-lines element)
(org-element-property :retain-labels element)
(org-element-property :use-labels element)))))
(org-test-with-temp-text "#+BEGIN_SRC emacs-lisp +n\n(+ 1 1)\n#+END_SRC"
(let ((element (org-element-current-element)))
(should (and (org-element-property :number-lines element)
(org-element-property :retain-labels element)
(org-element-property :use-labels element)))))
;; 5. No switch should not number lines, but retain labels and use
;; them in coderefs.
(org-test-with-temp-text "#+BEGIN_EXAMPLE\nText.\n#+END_EXAMPLE"
(let ((element (org-element-current-element)))
(should (and (not (org-element-property :number-lines element))
(org-element-property :retain-labels element)
(org-element-property :use-labels element)))))
(org-test-with-temp-text "#+BEGIN_SRC emacs-lisp\n(+ 1 1)\n#+END_SRC"
(let ((element (org-element-current-element)))
(should (and (not (org-element-property :number-lines element))
(org-element-property :retain-labels element)
(org-element-property :use-labels element)))))
;; 6. "-r" switch only: do not number lines, remove labels, and
;; don't use labels in coderefs.
(org-test-with-temp-text "#+BEGIN_EXAMPLE -r\nText.\n#+END_EXAMPLE"
(let ((element (org-element-current-element)))
(should (and (not (org-element-property :number-lines element))
(not (org-element-property :retain-labels element))
(not (org-element-property :use-labels element))))))
(org-test-with-temp-text "#+BEGIN_SRC emacs-lisp -r\n(+ 1 1)\n#+END_SRC"
(let ((element (org-element-current-element)))
(should (and (not (org-element-property :number-lines element))
(not (org-element-property :retain-labels element))
(not (org-element-property :use-labels element))))))
;; 7. Recognize coderefs with user-defined syntax.
(org-test-with-temp-text
"#+BEGIN_EXAMPLE -l \"[ref:%s]\"\nText [ref:text]\n#+END_EXAMPLE"
(let ((element (org-element-current-element)))
(should
(equal (org-element-property :label-fmt element) "[ref:%s]"))))
(org-test-with-temp-text
"#+BEGIN_SRC emacs-lisp -l \"[ref:%s]\"\n(+ 1 1) [ref:text]\n#+END_SRC"
(let ((element (org-element-current-element)))
(should
(equal (org-element-property :label-fmt element) "[ref:%s]"))))))
;;;; Footnotes references and definitions
(ert-deftest test-org-element/footnote-reference ()
"Test footnote-reference parsing."
;; 1. Parse a standard reference.
(org-test-with-temp-text "[fn:label]"
(should (equal (org-element-footnote-reference-parser)
'(footnote-reference
(:label "fn:label" :type standard :inline-definition nil
:begin 1 :end 11 :post-blank 0)))))
;; 2. Parse a normalized reference.
(org-test-with-temp-text "[1]"
(should (equal (org-element-footnote-reference-parser)
'(footnote-reference
(:label "1" :type standard :inline-definition nil
:begin 1 :end 4 :post-blank 0)))))
;; 3. Parse an inline reference.
(org-test-with-temp-text "[fn:test:def]"
(should (equal (org-element-footnote-reference-parser)
'(footnote-reference
(:label "fn:test" :type inline :inline-definition ("def")
:begin 1 :end 14 :post-blank 0)))))
;; 4. Parse an anonymous reference.
(org-test-with-temp-text "[fn::def]"
(should (equal (org-element-footnote-reference-parser)
'(footnote-reference
(:label nil :type inline :inline-definition ("def")
:begin 1 :end 10 :post-blank 0)))))
;; 5. Parse nested footnotes.
(org-test-with-temp-text "[fn::def [fn:label]]"
(should
(equal
(org-element-footnote-reference-parser)
'(footnote-reference
(:label nil :type inline
:inline-definition
("def "
(footnote-reference
(:label "fn:label" :type standard :inline-definition nil
:begin 5 :end 15 :post-blank 0)))
:begin 1 :end 21 :post-blank 0)))))
;; 6. Parse adjacent footnotes.
(org-test-with-temp-text "[fn:label1][fn:label2]"
(should
(equal
(org-element-footnote-reference-parser)
'(footnote-reference
(:label "fn:label1" :type standard :inline-definition nil :begin 1
:end 12 :post-blank 0)))))
;; 7. Only properly closed footnotes are recognized as such.
(org-test-with-temp-text "Text [fn:label"
(should-not
(org-element-map
(org-element-parse-buffer) 'footnote-reference 'identity))))
;;;; Granularity
(ert-deftest test-org-element/granularity ()
"Test granularity impact on buffer parsing."
(org-test-with-temp-text "
* Head 1
** Head 2
#+BEGIN_CENTER
Centered paragraph.
#+END_CENTER
Paragraph \\alpha."
;; 1.1. Granularity set to `headline' should parse every headline
;; in buffer, and only them.
(let ((tree (org-element-parse-buffer 'headline)))
(should (= 2 (length (org-element-map tree 'headline 'identity))))
(should-not (org-element-map tree 'paragraph 'identity)))
;; 1.2. Granularity set to `greater-element' should not enter
;; greater elements excepted headlines and sections.
(let ((tree (org-element-parse-buffer 'greater-element)))
(should (= 1 (length (org-element-map tree 'center-block 'identity))))
(should (= 1 (length (org-element-map tree 'paragraph 'identity))))
(should-not (org-element-map tree 'entity 'identity)))
;; 1.3. Granularity set to `element' should enter every
;; greater-element.
(let ((tree (org-element-parse-buffer 'element)))
(should (= 2 (length (org-element-map tree 'paragraph 'identity))))
(should-not (org-element-map tree 'entity 'identity)))
;; 1.4. Granularity set to `object' can see everything.
(let ((tree (org-element-parse-buffer 'object)))
(should (= 1 (length (org-element-map tree 'entity 'identity)))))))
(ert-deftest test-org-element/secondary-string-parsing ()
"Test if granularity correctly toggles secondary strings parsing."
;; 1. With a granularity bigger than `object', no secondary string
;; should be parsed.
;;
;; 1.1. Test with `headline' type.
(org-test-with-temp-text "* Headline"
(let ((headline
(org-element-map (org-element-parse-buffer 'headline) 'headline
'identity
nil
'first-match)))
(should (stringp (org-element-property :title headline)))))
;; 1.2. Test with `item' type.
(org-test-with-temp-text "* Headline\n- tag :: item"
(let ((item (org-element-map (org-element-parse-buffer 'element)
'item
'identity
nil
'first-match)))
(should (stringp (org-element-property :tag item)))))
;; 1.3. Test with `inlinetask' type, if avalaible.
(when (featurep 'org-inlinetask)
(let ((org-inlinetask-min-level 15))
(org-test-with-temp-text "*************** Inlinetask"
(let ((inlinetask (org-element-map (org-element-parse-buffer 'element)
'inlinetask
'identity
nil
'first-match)))
(should (stringp (org-element-property :title inlinetask)))))))
;; 2. With a default granularity, secondary strings should be
;; parsed.
(org-test-with-temp-text "* Headline"
(let ((headline
(org-element-map (org-element-parse-buffer) 'headline
'identity
nil
'first-match)))
(should (listp (org-element-property :title headline)))))
;; 3. `org-element-at-point' should never parse a secondary string.
(org-test-with-temp-text "* Headline"
(should (stringp (org-element-property :title (org-element-at-point))))))
;;;; Interpretation.
(ert-deftest test-org-element/interpret-affiliated-keywords ()
"Test if affiliated keywords are correctly interpreted."
;; Interpret simple keywords.
(should
(equal
(org-element-interpret-data
'(org-data nil (paragraph (:name "para") "Paragraph")))
"#+NAME: para\nParagraph\n"))
;; Interpret multiple keywords.
(should
(equal
(org-element-interpret-data
'(org-data nil (paragraph (:attr_ascii ("line1" "line2")) "Paragraph")))
"#+ATTR_ASCII: line1\n#+ATTR_ASCII: line2\nParagraph\n"))
;; Interpret parsed keywords.
(should
(equal
(org-element-interpret-data
'(org-data nil (paragraph (:caption ("caption")) "Paragraph")))
"#+CAPTION: caption\nParagraph\n"))
;; Interpret dual keywords.
(should
(equal
(org-element-interpret-data
'(org-data nil (paragraph (:caption (("long") "short")) "Paragraph")))
"#+CAPTION[short]: long\nParagraph\n")))
;;;; Normalize contents
(ert-deftest test-org-element/normalize-contents ()
"Test `org-element-normalize-contents' specifications."
;; 1. Remove maximum common indentation from element's contents.
(should
(equal
(org-element-normalize-contents
'(paragraph nil " Two spaces\n Three spaces"))
'(paragraph nil "Two spaces\n Three spaces")))
;; 2. Ignore objects within contents when computing maximum common
;; indentation.
(should
(equal
(org-element-normalize-contents
'(paragraph nil " One " (emphasis nil "space") "\n Two spaces"))
'(paragraph nil "One " (emphasis nil "space") "\n Two spaces")))
;; 3. Ignore blank lines.
(should
(equal
(org-element-normalize-contents
'(paragraph nil " Two spaces\n\n \n Two spaces"))
'(paragraph nil "Two spaces\n\n \nTwo spaces")))
;; 4. Recursively enter objects in order to compute common
;; indentation.
(should
(equal
(org-element-normalize-contents
'(paragraph nil " Two spaces " (emphasis nil " and\n One space")))
'(paragraph nil " Two spaces " (emphasis nil " and\nOne space"))))
;; 5. When optional argument is provided, ignore first line
;; indentation.
(should
(equal
(org-element-normalize-contents
'(paragraph nil "No space\n Two spaces\n Three spaces") t)
'(paragraph nil "No space\nTwo spaces\n Three spaces"))))
;;;; Navigation tools.
(ert-deftest test-org-element/forward-element ()
"Test `org-element-forward' specifications."
;; 1. At EOB: should error.
(org-test-with-temp-text "Some text\n"
(goto-char (point-max))
(should-error (org-element-forward)))
;; 2. Standard move: expected to ignore blank lines.
(org-test-with-temp-text "First paragraph.\n\n\nSecond paragraph."
(org-element-forward)
(should (looking-at "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-element-forward)
(should (looking-at "** Head 1.2"))
;; 3.2. At an headline beginning: move to parent headline if no
;; headline at the same level.
(goto-line 3)
(org-element-forward)
(should (looking-at "** 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-element-forward)
(should (looking-at "Outside."))
;; 4.2. At the end of greater element contents: expected to skip
;; to the end of the greater element.
(goto-line 2)
(org-element-forward)
(should (looking-at "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-element-forward)
(should (looking-at "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-element-forward)
(should (looking-at "- item2"))
(goto-line 4)
(forward-char)
(org-element-forward)
(should (looking-at " - sub2"))
;; 5.3 At sub-list beginning: expected to move after the sub-list.
(goto-line 4)
(org-element-forward)
(should (looking-at " Inner paragraph."))
;; 5.4. At sub-list end: expected to move outside the sub-list.
(goto-line 8)
(org-element-forward)
(should (looking-at " Inner paragraph."))
;; 5.5. At an item: expected to move to next item, if any.
(goto-line 6)
(org-element-forward)
(should (looking-at " - sub3"))))
(ert-deftest test-org-element/backward-element ()
"Test `org-element-backward' specifications."
;; 1. At BOB (modulo some white spaces): should error.
(org-test-with-temp-text " \nParagraph."
(org-skip-whitespace)
(should-error (org-element-backward)))
;; 2. 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-element-backward)
(should (looking-at "Paragraph2.")))
;; 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 previous headline at the
;; same level.
(goto-line 5)
(org-element-backward)
(should (looking-at "** Head 1.1"))
;; 3.2. At an headline beginning: move to parent headline if no
;; headline at the same level.
(goto-line 3)
(org-element-backward)
(should (looking-at "* Head 1"))
;; 3.3. At the first top-level headline: should error.
(goto-line 2)
(should-error (org-element-backward)))
;; 4. 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-element-backward)
(should (looking-at "#\\+BEGIN_CENTER")))
;; 5. List tests.
(org-test-with-temp-text "
- item1
- sub1
- sub2
- sub3
Inner paragraph.
- item2
Outside."
;; 5.1. At beginning of sub-list: expected to move to the
;; paragraph before it.
(goto-line 4)
(org-element-backward)
(should (looking-at "item1"))
;; 5.2. At an item in a list: expected to move at previous item.
(goto-line 8)
(org-element-backward)
(should (looking-at " - sub2"))
(goto-line 12)
(org-element-backward)
(should (looking-at "- item1"))
;; 5.3. At end of list/sub-list: expected to move to list/sub-list
;; beginning.
(goto-line 10)
(org-element-backward)
(should (looking-at " - sub1"))
(goto-line 15)
(org-element-backward)
(should (looking-at "- item1"))
;; 5.4. At blank-lines before list end: expected to move to top
;; item.
(goto-line 14)
(org-element-backward)
(should (looking-at "- item1"))))
(ert-deftest test-org-element/up-element ()
"Test `org-element-up' specifications."
;; 1. At BOB or with no surrounding element: should error.
(org-test-with-temp-text "Paragraph."
(should-error (org-element-up)))
(org-test-with-temp-text "* Head1\n* Head2"
(goto-line 2)
(should-error (org-element-up)))
(org-test-with-temp-text "Paragraph1.\n\nParagraph2."
(goto-line 3)
(should-error (org-element-up)))
;; 2. At an headline: move to parent headline.
(org-test-with-temp-text "* Head1\n** Sub-Head1\n** Sub-Head2"
(goto-line 3)
(org-element-up)
(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-element-up)
(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-element-up)
(should (looking-at " - sub2"))
;; 4.2. At an item in a sub-list: move to parent item.
(goto-line 4)
(org-element-up)
(should (looking-at "- item1"))
;; 4.3. At an item in top list: move to beginning of whole list.
(goto-line 10)
(org-element-up)
(should (looking-at "- item1"))
;; 4.4. Special case. At very top point: should move to parent of
;; list.
(goto-line 2)
(org-element-up)
(should (looking-at "\\* Top"))))
(ert-deftest test-org-element/down-element ()
"Test `org-element-down' specifications."
;; 1. Error when the element hasn't got a recursive type.
(org-test-with-temp-text "Paragraph."
(should-error (org-element-down)))
;; 2. 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-element-down)
(should (looking-at " - Item 1.1")))
(org-test-with-temp-text "#+NAME: list\n- Item 1"
(org-element-down)
(should (looking-at " Item 1")))
;; 3. When at a table, move to first row
(org-test-with-temp-text "#+NAME: table\n| a | b |"
(org-element-down)
(should (looking-at " a | b |")))
;; 4. Otherwise, move inside the greater element.
(org-test-with-temp-text "#+BEGIN_CENTER\nParagraph.\n#+END_CENTER"
(org-element-down)
(should (looking-at "Paragraph"))))
(ert-deftest test-org-element/drag-backward ()
"Test `org-element-drag-backward' specifications."
;; 1. Error when trying to move first element of buffer.
(org-test-with-temp-text "Paragraph 1.\n\nParagraph 2."
(should-error (org-element-drag-backward)))
;; 2. Error when trying to swap nested elements.
(org-test-with-temp-text "#+BEGIN_CENTER\nTest.\n#+END_CENTER"
(forward-line)
(should-error (org-element-drag-backward)))
;; 3. Error when trying to swap an headline element and
;; a non-headline element.
(org-test-with-temp-text "Test.\n* Head 1"
(forward-line)
(should-error (org-element-drag-backward)))
;; 4. Otherwise, swap elements, preserving column and blank lines
;; between elements.
(org-test-with-temp-text "Para1\n\n\nParagraph 2\n\nPara3"
(search-forward "graph")
(org-element-drag-backward)
(should (equal (buffer-string) "Paragraph 2\n\n\nPara1\n\nPara3"))
(should (looking-at " 2"))))
(ert-deftest test-org-element/drag-forward ()
"Test `org-element-drag-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-element-drag-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-element-drag-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-element-drag-forward)))
;; 4. 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-element-drag-forward)
(should (equal (buffer-string) "Para2\n\n\nParagraph 1\n\nPara3"))
(should (looking-at " 1"))))
(provide 'test-org-element)
;;; test-org-element.el ends here
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