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+{-# LANGUAGE OverloadedStrings #-}
+module Tests.Writers.LaTeX (tests) where
+
+import Data.Text (unpack)
+import Test.Tasty
+import Tests.Helpers
+import Text.Pandoc
+import Text.Pandoc.Arbitrary ()
+import Text.Pandoc.Builder
+
+latex :: (ToPandoc a) => a -> String
+latex = latexWithOpts def
+
+latexListing :: (ToPandoc a) => a -> String
+latexListing = latexWithOpts def{ writerListings = True }
+
+latexWithOpts :: (ToPandoc a) => WriterOptions -> a -> String
+latexWithOpts opts = unpack . purely (writeLaTeX opts) . toPandoc
+
+beamerWithOpts :: (ToPandoc a) => WriterOptions -> a -> String
+beamerWithOpts opts = unpack . purely (writeBeamer opts) . toPandoc
+
+{-
+  "my test" =: X =?> Y
+
+is shorthand for
+
+  test latex "my test" $ X =?> Y
+
+which is in turn shorthand for
+
+  test latex "my test" (X,Y)
+-}
+
+infix 4 =:
+(=:) :: (ToString a, ToPandoc a)
+     => String -> (a, String) -> TestTree
+(=:) = test latex
+
+tests :: [TestTree]
+tests = [ testGroup "code blocks"
+          [ "in footnotes" =: note (para "hi" <> codeBlock "hi") =?>
+            "\\footnote{hi\n\n\\begin{Verbatim}\nhi\n\\end{Verbatim}\n}"
+          , test latexListing "identifier" $ codeBlockWith ("id",[],[]) "hi" =?>
+            ("\\begin{lstlisting}[label=id]\nhi\n\\end{lstlisting}" :: String)
+          , test latexListing "no identifier" $ codeBlock "hi" =?>
+            ("\\begin{lstlisting}\nhi\n\\end{lstlisting}" :: String)
+          ]
+        , testGroup "definition lists"
+          [ "with internal link" =: definitionList [(link "#go" "" (str "testing"),
+             [plain (text "hi there")])] =?>
+            "\\begin{description}\n\\tightlist\n\\item[{\\protect\\hyperlink{go}{testing}}]\nhi there\n\\end{description}"
+          ]
+        , testGroup "math"
+          [ "escape |" =: para (math "\\sigma|_{\\{x\\}}") =?>
+            "\\(\\sigma|_{\\{x\\}}\\)"
+          ]
+        , testGroup "headers"
+          [ "unnumbered header" =:
+            headerWith ("foo",["unnumbered"],[]) 1
+              (text "Header 1" <> note (plain $ text "note")) =?>
+            "\\hypertarget{foo}{%\n\\section*{\\texorpdfstring{Header 1\\footnote{note}}{Header 1}}\\label{foo}}\n\\addcontentsline{toc}{section}{Header 1}\n"
+          , "in list item" =:
+            bulletList [header 2 (text "foo")] =?>
+            "\\begin{itemize}\n\\item ~\n  \\subsection{foo}\n\\end{itemize}"
+          , "in definition list item" =:
+            definitionList [(text "foo", [header 2 (text "bar"),
+                                          para $ text "baz"])] =?>
+            "\\begin{description}\n\\item[foo] ~ \n\\subsection{bar}\n\nbaz\n\\end{description}"
+          , "containing image" =:
+            header 1 (image "imgs/foo.jpg" "" (text "Alt text")) =?>
+            "\\section{\\texorpdfstring{\\protect\\includegraphics{imgs/foo.jpg}}{Alt text}}"
+          ]
+        , testGroup "inline code"
+          [ "struck out and highlighted" =:
+            strikeout (codeWith ("",["haskell"],[]) "foo" <> space
+              <> str "bar") =?>
+            "\\sout{\\mbox{\\VERB|\\NormalTok{foo}|} bar}"
+          , "struck out and not highlighted" =:
+            strikeout (code "foo" <> space
+              <> str "bar") =?>
+            "\\sout{\\texttt{foo} bar}"
+          , "single quotes" =:
+              code "dog's" =?> "\\texttt{dog\\textquotesingle{}s}"
+          , "backtick" =:
+              code "`nu?`" =?> "\\texttt{\\textasciigrave{}nu?\\textasciigrave{}}"
+          ]
+        , testGroup "writer options"
+          [ testGroup "top-level division" $
+            let
+              headers =  header 1 (text "header1")
+                      <> header 2 (text "header2")
+                      <> header 3 (text "header3")
+
+              latexTopLevelDiv :: (ToPandoc a) => TopLevelDivision -> a -> String
+              latexTopLevelDiv division =
+                latexWithOpts def{ writerTopLevelDivision = division }
+
+              beamerTopLevelDiv :: (ToPandoc a)
+                                => TopLevelDivision -> a -> String
+              beamerTopLevelDiv division =
+                beamerWithOpts def { writerTopLevelDivision = division }
+            in
+            [ test (latexTopLevelDiv TopLevelSection)
+                   "sections as top-level" $ headers =?>
+              unlines [ "\\section{header1}\n"
+                      , "\\subsection{header2}\n"
+                      , "\\subsubsection{header3}"
+                      ]
+            , test (latexTopLevelDiv TopLevelChapter)
+                   "chapters as top-level" $ headers =?>
+              unlines [ "\\chapter{header1}\n"
+                      , "\\section{header2}\n"
+                      , "\\subsection{header3}"
+                      ]
+            , test (latexTopLevelDiv TopLevelPart)
+                   "parts as top-level" $ headers =?>
+              unlines [ "\\part{header1}\n"
+                      , "\\chapter{header2}\n"
+                      , "\\section{header3}"
+                      ]
+            , test (latexTopLevelDiv TopLevelDefault)
+                   "default top-level" $ headers =?>
+              unlines [ "\\section{header1}\n"
+                      , "\\subsection{header2}\n"
+                      , "\\subsubsection{header3}"
+                      ]
+            , test (beamerTopLevelDiv TopLevelSection)
+                   "sections as top-level in beamer" $ headers =?>
+              unlines [ "\\section{header1}\n"
+                      , "\\subsection{header2}\n"
+                      , "\\subsubsection{header3}"
+                      ]
+            , test (beamerTopLevelDiv TopLevelChapter)
+                   "chapters are as part in beamer" $ headers =?>
+              unlines [ "\\part{header1}\n"
+                      , "\\section{header2}\n"
+                      , "\\subsection{header3}"
+                      ]
+            , test (beamerTopLevelDiv TopLevelPart)
+                   "parts as top-level in beamer" $ headers =?>
+              unlines [ "\\part{header1}\n"
+                      , "\\section{header2}\n"
+                      , "\\subsection{header3}"
+                      ]
+            , test (beamerTopLevelDiv TopLevelDefault)
+                   "default top-level in beamer" $ headers =?>
+              unlines [ "\\section{header1}\n"
+                      , "\\subsection{header2}\n"
+                      , "\\subsubsection{header3}"
+                      ]
+            , test (latexTopLevelDiv TopLevelPart)
+                   "part top-level, section not in toc" $
+                   (   headerWith ("", ["unnumbered"], []) 1 (text "header1")
+                    <> headerWith ("", ["unnumbered"], []) 2 (text "header2")
+                    <> headerWith ("", ["unnumbered"], []) 3 (text "header3")
+                    <> headerWith ("", ["unnumbered"], []) 4 (text "header4")
+                    <> headerWith ("", ["unnumbered"], []) 5 (text "header5")
+                    <> headerWith ("", ["unnumbered"], []) 6 (text "header6"))
+                   =?>
+              unlines [ "\\part*{header1}"
+                      , "\\addcontentsline{toc}{part}{header1}\n"
+                      , "\\chapter*{header2}"
+                      , "\\addcontentsline{toc}{chapter}{header2}\n"
+                      , "\\section*{header3}"
+                      , "\\addcontentsline{toc}{section}{header3}\n"
+                      , "\\subsection*{header4}"
+                      , "\\addcontentsline{toc}{subsection}{header4}\n"
+                      , "\\subsubsection*{header5}"
+                      , "\\addcontentsline{toc}{subsubsection}{header5}\n"
+                      , "\\paragraph{header6}"
+                      , "\\addcontentsline{toc}{paragraph}{header6}"
+                      ]
+            ]
+          ]
+        ]