Fixes wrong variable invoking during get transport

Now the method of transport() of queues/v1/client.py is invoking
wrong variable name. This patch fixes it and add an unit test.

NOTE: More unit test cases for v1/client.py will be added in a
separate patch.

Change-Id: I75a2498002bb2b9b7475bef0af5eebc8d82d662d
Closes-Bug: #1266467

marconiclient/queues/v1/client.py

@@ -75,7 +75,7 @@ class Client(object):
 
     def transport(self):
         """Gets a transport based the api url and version."""
-        return transport.get_transport_for(self.url,
+        return transport.get_transport_for(self.api_url,
                                            self.api_version)
 
     def queue(self, ref, **kwargs):

tests/unit/queues/v1/test_client.py

@@ -0,0 +1,27 @@
+# Copyright 2014 IBM Corp.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from marconiclient.queues import client
+from marconiclient.tests import base
+
+VERSION = 1
+
+
+class TestClient(base.TestBase):
+
+    def test_transport(self):
+        cli = client.Client('http://example.com',
+                            VERSION, {})
+        self.assertIsNotNone(cli.transport())