;;; test-ox-latex.el --- tests for ox-latex.el       -*- lexical-binding: t; -*-

;; Copyright (C) 2022  Ihor Radchenko

;; Author: Ihor Radchenko <yantar92@posteo.net>

;; 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 <https://www.gnu.org/licenses/>.

;;; Commentary:

;; Tests checking validity of Org LaTeX export output.

;;; Code:

(require 'ox-latex nil t)
(unless (featurep 'ox-latex)
  (signal 'missing-test-dependency '("org-export-latex")))


(ert-deftest test-ox-latex/unnumbered-toc ()
  "Test unnumbered toc elements"
  (org-test-with-exported-text
   'latex
   "#+OPTIONS: num:nil

* Test
:PROPERTIES:
:ALT_TITLE: alt
:END:

This is a test.
"
   (goto-char (point-min))
   (should
    (search-forward "\\begin{document}"))
   (should
    (search-forward "\\tableofcontents"))
   (should
    (search-forward "\\section*{Test}"))
   (should
    (search-forward "\\addcontentsline{toc}{section}{alt}"))
   (should
    (search-forward "\\label{"))
   (should
    (search-forward "This is a test."))))

(ert-deftest test-ox-latex/unnumbered-toc-mixed ()
  "Test unnumbered toc elements"
  (org-test-with-exported-text
   'latex
   "* Introduction: a test
:PROPERTIES:
:ALT_TITLE: Introduction
:END:

A shorter test for alt title

** State of the Art
:PROPERTIES:
:UNNUMBERED: t
:ALT_TITLE: SOTA
:END:

And now an unnumbered section in the ToC
"
   (goto-char (point-min))
   (should
    (search-forward "\\begin{document}

\\tableofcontents

\\section[Introduction]{Introduction: a test}
\\label{sec:org"))
   (should
    (search-forward "}
A shorter test for alt title
\\subsection*{State of the Art}
\\addcontentsline{toc}{subsection}{SOTA}
\\label{sec:"))
   (should
    (search-forward "}
And now an unnumbered section in the ToC"))))

(ert-deftest text-ox-latex/protect-square-brackets ()
  "Test [foo] being interpreted as plain text even after LaTeX commands."
  (org-test-with-exported-text
      'latex
      "* This is test
lorem @@latex:\\pagebreak@@ [ipsum]

#+begin_figure
[lorem] figure
#+end_figure

| [foo] | 2 |
| [bar] | 3 |

- [bax]
- [aur]
"
    (goto-char (point-min))
    (should (search-forward "lorem \\pagebreak {[}ipsum]"))
    (should (search-forward "{[}lorem] figure"))
    (should (search-forward "{[}foo]"))
    (should (search-forward "\\item {[}bax]"))))

(ert-deftest test-ox-latex/verse ()
  "Test verse blocks."
  (org-test-with-exported-text
      'latex
      "#+begin_verse
lorem ipsum dolor
lorem ipsum dolor

lorem ipsum dolor
lorem ipsum dolor

lorem ipsum dolor
lorem ipsum dolor
#+end_verse
"
    (goto-char (point-min))
    (should
     (search-forward
      "\\begin{verse}
lorem ipsum dolor\\\\
lorem ipsum dolor

lorem ipsum dolor\\\\
lorem ipsum dolor

lorem ipsum dolor\\\\
lorem ipsum dolor\\\\
\\end{verse}"))))

(ert-deftest test-ox-latex/longtable ()
  "Test table export with longtable environment."
  (org-test-with-exported-text
      'latex
      "#+attr_latex: :environment longtable
| First        | Second |
| Column       | Column |
|--------------+--------|
| a            |      1 |
| b            |      2 |
| \\pagebreak c |      3 |
| d            |      4 |
"
    (goto-char (point-min))
    (should
     (search-forward
      "\\begin{longtable}{lr}
First & Second\\\\
Column & Column\\\\
\\hline
\\endfirsthead"))
    (goto-char (point-min))
    (should
     (search-forward
      "First & Second\\\\
Column & Column \\\\

\\hline
\\endhead"))
    (goto-char (point-min))
    (should
     (search-forward
      "\\hline\\multicolumn{2}{r}{Continued on next page} \\\\
\\endfoot"))))

(ert-deftest test-ox-latex/inline-image ()
  "Test inline images."
  (org-test-with-exported-text
      'latex
      "#+caption: Schematic
[[https://orgmode.org/worg/images/orgmode/org-mode-unicorn.svg][file:/wallpaper.png]]"
    (goto-char (point-min))
    (should
     (search-forward
      "\\href{https://orgmode.org/worg/images/orgmode/org-mode-unicorn.svg}{\\includegraphics[width=.9\\linewidth]{/wallpaper.png}}"))))


(provide 'test-ox-latex)
;;; test-ox-latex.el ends here