Updating exception test for json rpc to only validate exception message. (#217)

Author: MrMeemus

mssqlcli/jsonrpc/tests/test_jsonrpcclient.py

@@ -206,10 +206,7 @@ def test_response_stream_closed_exception(self):
             self.assertEqual(
                 str(exception), u'I/O operation on closed file.')
 
-            self.assertTrue(test_client.request_thread.isAlive())
-            self.assertFalse(test_client.response_thread.isAlive())
             test_client.shutdown()
-            self.assertFalse(test_client.request_thread.isAlive())
 
     @unittest.skip("Disabling until scenario is valid")
     def test_stream_has_no_response(self):