Merge pull request #398 from d0ugal/meta_fix

Meta fix

mkdocs/build.py

@@ -35,8 +35,11 @@ def convert_markdown(markdown_source, site_navigation=None, extensions=(), stric
         extensions=extensions
     )
     html_content = md.convert(markdown_source)
-    meta = md.Meta
-    toc_html = md.toc
+
+    # On completely blank markdown files, no Meta or tox properties are added
+    # to the generated document.
+    meta = getattr(md, 'Meta', {})
+    toc_html = getattr(md, 'toc', '')
 
     # Post process the generated table of contents into a data structure
     table_of_contents = toc.TableOfContents(toc_html)

mkdocs/tests/build_tests.py

@@ -13,6 +13,14 @@
 
 
 class BuildTests(unittest.TestCase):
+
+    def test_empty_document(self):
+        html, toc, meta = build.convert_markdown("")
+
+        self.assertEqual(html, '')
+        self.assertEqual(len(list(toc)), 0)
+        self.assertEqual(meta, {})
+
     def test_convert_markdown(self):
         """
         Ensure that basic Markdown -> HTML and TOC works.