Merge pull request magic-wormhole#522 from anarcat/skip-fail

skip failing test if noiseprotocol unavailable

src/wormhole/test/dilate/test_record.py

@@ -3,7 +3,7 @@
 from zope.interface import alsoProvides
 from twisted.trial import unittest
 from twisted.internet.interfaces import ITransport
-from ..._dilation._noise import NoiseInvalidMessage
+from ..._dilation._noise import NoiseInvalidMessage, NoiseConnection
 from ..._dilation.connection import (IFramer, Frame, Prologue,
                                      _Record, Handshake, KCM,
                                      Disconnect, Ping, _Framer, Data)
@@ -282,6 +282,8 @@ def test_large_frame(self):
         Noise only allows 64KiB message, but the API allows up to 4GiB
         frames
         """
+        if not NoiseConnection:
+            raise unittest.SkipTest("noiseprotocol unavailable")
         # XXX could really benefit from some Hypothesis style
         # exploration of more cases .. but we don't already depend on
         # that library, so a future improvement