Fix tests

Python 2's mock is no longer compatible to more recent versions of
Python's socket module. Tests are still fine without the autospec
feature.

More recent versions of pytests refuse to load tests because pytest
considers webtest.TestApp as a test class with a non-trival __init__.

Signed-off-by: Christian Heimes <[email protected]>

tests.py

@@ -34,7 +34,7 @@
 
 from pyasn1.codec.der import decoder, encoder
 
-from webtest import TestApp
+from webtest import TestApp as WebTestApp
 
 import kdcproxy
 # from kdcproxy import asn1
@@ -59,7 +59,7 @@ def setUp(self):  # noqa
         self.await_reply.return_value = b'RESPONSE'
         self.resolver = self.app._Application__resolver = mock.Mock()
         self.resolver.lookup.return_value = ["kerberos://k1.kdcproxy.test.:88"]
-        self.tapp = TestApp(self.app)
+        self.tapp = WebTestApp(self.app)
 
     def post(self, body, expect_errors=False):
         return self.tapp.post(
@@ -79,7 +79,7 @@ def test_get(self):
         self.assertEqual(r.text, 'Method not allowed (GET).')
 
     @mock.patch('socket.getaddrinfo', return_value=addrinfo)
-    @mock.patch('socket.socket', autospec=True)
+    @mock.patch('socket.socket')
     def test_post_asreq(self, m_socket, m_getaddrinfo):
         response = self.post(KDCProxyCodecTests.asreq1)
         self.assert_response(response)
@@ -92,7 +92,7 @@ def test_post_asreq(self, m_socket, m_getaddrinfo):
         )
 
     @mock.patch('socket.getaddrinfo', return_value=addrinfo)
-    @mock.patch('socket.socket', autospec=True)
+    @mock.patch('socket.socket')
     def test_post_kpasswd(self, m_socket, m_getaddrinfo):
         response = self.post(KDCProxyCodecTests.kpasswdreq)
         self.assert_response(response)