#5827: make sure that normpath preserves unicode
diff --git a/Lib/test/test_ntpath.py b/Lib/test/test_ntpath.py
index ade0790..83d794d 100644
--- a/Lib/test/test_ntpath.py
+++ b/Lib/test/test_ntpath.py
@@ -123,6 +123,11 @@
         tester("ntpath.normpath('C:////a/b')", r'C:\a\b')
         tester("ntpath.normpath('//machine/share//a/b')", r'\\machine\share\a\b')
 
+        # Issue 5827: Make sure normpath preserves unicode
+        for path in (u'', u'.', u'/', u'\\', u'///foo/.//bar//'):
+            self.assertTrue(isinstance(ntpath.normpath(path), unicode),
+                            'normpath() returned str instead of unicode')
+
     def test_expandvars(self):
         with test_support.EnvironmentVarGuard() as env:
             env.clear()