Add test for token with empty data connection

Author: maikthomas

tests/test_token_generation.py

@@ -64,6 +64,12 @@ def test_generate_data_token(self):
         assert token_decoder(token)[u('connection_data')] == data
         assert token_signature_validator(token, self.api_secret)
 
+    def test_generate_no_data_token(self):
+        token = self.opentok.generate_token(self.session_id)
+        assert isinstance(token, text_type)
+        self.assertNotIn(u('connection_data'), token_decoder(token))
+        assert token_signature_validator(token, self.api_secret)
+
     @raises(TypeError)
     def test_does_not_generate_token_without_params(self):
         token = self.opentok.generate_token()