db/utils: Handle multipart/signed inside multipart/mixed

It is possible (and actual mail clients such as kmail do) to embed a
multipart/signed within a multipart/mixed (this is briefly mentioned in
the acknowledgements of RFC 3156, and is perfectly valid according to
RFC 1341, which says that a multipart/mixed is exactly like a top level
message, except that the header may be empty.

1 files changed, 0 insertions, 1 deletions

diff --git a/tests/db/utils_test.py b/tests/db/utils_test.py
index ea0b6f20..d2c92577 100644
--- a/tests/db/utils_test.py
+++ b/tests/db/utils_test.py
@@ -593,7 +593,6 @@ class TestMessageFromFile(TestCaseClassCleanup):
         self.assertIn('Malformed OpenPGP message:',
                       m.get_payload(2).get_payload())
 
-    @unittest.expectedFailure
     def test_signed_in_multipart_mixed(self):
         """It is valid to encapsulate a multipart/signed payload inside a
         multipart/mixed payload, verify that works.