add some more tests for the utils module

tests/support.py

@@ -1,8 +1,9 @@
 from contextlib import contextmanager
-
 from tempfile import mkdtemp
 from shutil import rmtree
 
+from pelican.contents import Article
+
 
 @contextmanager
 def temporary_folder():
@@ -16,3 +17,10 @@ def temporary_folder():
     tempdir = mkdtemp()
     yield tempdir
     rmtree(tempdir)
+
+
+def get_article(title, slug, content, lang, extra_metadata=None):
+    metadata = {'slug': slug, 'title': title, 'lang': lang}
+    if extra_metadata is not None:
+        metadata.update(extra_metadata)
+    return Article(content, metadata=metadata)