adding basic Conveyor unittest

tests/beem/test_conveyor.py

+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+from __future__ import unicode_literals
+import unittest
+from beem import Steem
+from beem.conveyor import Conveyor
+from beem.instance import set_shared_steem_instance
+from beem.nodelist import NodeList
+
+wif = '5Jh1Gtu2j4Yi16TfhoDmg8Qj3ULcgRi7A49JXdfUUTVPkaFaRKz'
+
+
+class Testcases(unittest.TestCase):
+
+    @classmethod
+    def setUpClass(cls):
+        nodelist = NodeList()
+        stm = Steem(node=nodelist.get_testnet(), nobroadcast=True,
+                    num_retries=10, expiration=120, keys=wif)
+        set_shared_steem_instance(stm)
+
+    def test_healthcheck(self):
+        health = Conveyor().healthcheck()
+        self.assertTrue('version' in health)
+        self.assertTrue('ok' in health)
+        self.assertTrue('date' in health)
+
+    def test_get_user_data(self):
+        c = Conveyor()
+        userdata = c.get_user_data('beem')
+        self.assertTrue('jsonrpc' in userdata)
+        self.assertTrue('error' in userdata)
+        self.assertTrue('code' in userdata['error'])
+        # error 401 -> unauthorized, but proper format
+        self.assertTrue(userdata['error']['code'] == 401)
+
+
+if __name__ == "__main__":
+    unittest.main()