pep8 fixes

Author: fafhrd91

tests/test_websocket.py

@@ -470,3 +470,17 @@ def test_handshake_protocol_agreement(self):
             protocols=wanted_protos)
 
         self.assertEqual(protocol, best_proto)
+
+    def test_handshake_protocol_unsupported(self):
+        proto = 'chat'
+
+        self.headers.extend(self.gen_ws_headers('test')[0])
+        _, resp_headers, _, _, protocol = websocket.do_handshake(
+            self.message.method, self.message.headers, self.transport,
+            protocols=[proto])
+
+        self.assertEqual(protocol, proto)
+
+        # also test if we reply with the protocol
+        resp_headers = dict(resp_headers)
+        self.assertEqual(resp_headers['SEC-WEBSOCKET-PROTOCOL'], proto)