tests/test_parse_changes.py: Test that an contentless .dsc fails correctly

tests/fixtures/dsc/8.dsc

+-----BEGIN PGP SIGNED MESSAGE-----
+Hash: SHA1
+
+-----BEGIN PGP SIGNATURE-----
+Version: GnuPG v1.0.2 (GNU/Linux)
+Comment: For info see http://www.gnupg.org
+
+iD8DBQE5j091iPgEjVqvb1kRAvFtAJ0asUAaac6ebfR3YeaH16HjL7F3GwCfV+AQ
+rhYnRmVuNMa8oYSvL4hl/Yw=
+=EFAA
+-----END PGP SIGNATURE-----

tests/test_parse_changes.py

@@ -50,6 +50,11 @@ class ParseDscTestCase(ParseChangesTestCase):
         with self.assertRaises(GpgException):
             self.assertParse('dsc/7.dsc', -1, 1)
 
+    def test_8(self):
+        # No armored contents
+        with self.assertRaisesRegexp(ParseChangesError, "Empty changes"):
+            self.assertParse('dsc/8.dsc', -1, 1)
+
 class ParseChangesTestCase(ParseChangesTestCase):
     def test_1(self):
         # Empty changes