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--- a/Allura/allura/tests/test_helpers.py
+++ b/Allura/allura/tests/test_helpers.py
@@ -22,6 +22,9 @@
     assert isinstance(s, unicode)
     # try non-ascii string in legacy 8bit encoding
     h.really_unicode(u'\u0410\u0401'.encode('cp1251'))
+    # ensure invalid encodings are handled gracefully
+    s = h._attempt_encodings('foo', ['LKDJFLDK'])
+    assert isinstance(s, unicode)
 
 def test_render_genshi_plaintext():
     here_dir = path.dirname(__file__)