1 files changed, 33 insertions, 1 deletions
diff --git a/test/Tests/Lua.hs b/test/Tests/Lua.hs
index bbce2ac42..b25a6fa4a 100644
--- a/test/Tests/Lua.hs
+++ b/test/Tests/Lua.hs
@@ -12,7 +12,8 @@ import Text.Pandoc.Builder (bulletList, divWith, doc, doubleQuoted, emph,
                             header, linebreak, para, plain, rawBlock,
                             singleQuoted, space, str, strong, (<>))
 import Text.Pandoc.Class (runIOorExplode, setUserDataDir)
-import Text.Pandoc.Definition (Block, Inline, Meta, Pandoc, pandocTypesVersion)
+import Text.Pandoc.Definition (Block (BlockQuote, Div, Para), Inline (Emph, Str),
+                               Attr, Meta, Pandoc, pandocTypesVersion)
 import Text.Pandoc.Lua (runLuaFilter, runPandocLua)
 import Text.Pandoc.Options (def)
 import Text.Pandoc.Shared (pandocVersion)
@@ -123,6 +124,37 @@ tests = map (localOption (QuickCheckTests 20))
       Lua.getglobal "PANDOC_API_VERSION"
       Lua.liftIO . assertEqual "pandoc-types version is wrong" versionNums
         =<< Lua.peek Lua.stackTop
+
+  , testCase "Allow singleton inline in constructors" . runPandocLua' $ do
+      Lua.liftIO . assertEqual "Not the exptected Emph" (Emph [Str "test"])
+        =<< Lua.callFunc "pandoc.Emph" (Str "test")
+      Lua.liftIO . assertEqual "Unexpected element" (Para [Str "test"])
+        =<< Lua.callFunc "pandoc.Para" ("test" :: String)
+      Lua.liftIO . assertEqual "Unexptected element"
+        (BlockQuote [Para [Str "foo"]]) =<< (
+        do
+          Lua.getglobal' "pandoc.BlockQuote"
+          Lua.push (Para [Str "foo"])
+          _ <- Lua.call 1 1
+          Lua.peek Lua.stackTop
+        )
+
+  , testCase "Elements with Attr have `attr` accessor" . runPandocLua' $ do
+      Lua.push (Div ("hi", ["moin"], [])
+                [Para [Str "ignored"]])
+      Lua.getfield Lua.stackTop "attr"
+      Lua.liftIO . assertEqual "no accessor" (("hi", ["moin"], []) :: Attr)
+        =<< Lua.peek Lua.stackTop
+
+  , testCase "informative error messages" . runPandocLua' $ do
+      Lua.pushboolean True
+      err <- Lua.peekEither Lua.stackTop :: Lua.Lua (Either String Pandoc)
+      case err of
+        Left msg -> do
+          let expectedMsg = "Could not get Pandoc value: "
+                            ++ "expected table but got boolean."
+          Lua.liftIO $ assertEqual "unexpected error message" expectedMsg msg
+        Right _ -> error "Getting a Pandoc element from a bool should fail."
   ]
 
 assertFilterConversion :: String -> FilePath -> Pandoc -> Pandoc -> Assertion