Fix sw component creation parameter error

The switching to rpc calls for software component is broken due to
stricter keyword argument checking. An additional 'configs' parameter is
rejected by rpc client. This patch removes 'configs' from the keyword
arguments and adds a test case that the rpc method is invoked with
expected parameters.

Change-Id: I8b1674dbea2b9f0fe92a3fab946ce83cd64521ad
Closes-Bug: 1416404

heat/engine/resources/software_config/software_component.py

@@ -116,6 +116,7 @@ class SoftwareComponent(sc.SoftwareConfig):
         props[self.CONFIG] = {self.CONFIGS: configs}
         # set 'group' to enable component processing by in-instance hook
         props[self.GROUP] = 'component'
+        del props['configs']
 
         sc = self.rpc_client().create_software_config(self.context, **props)
         self.resource_id_set(sc[rpc_api.SOFTWARE_CONFIG_ID])

heat/tests/test_software_component.py

@@ -71,7 +71,16 @@ class SoftwareComponentTest(common.HeatTestCase):
         config_id = 'c8a19429-7fde-47ea-a42f-40045488226c'
         value = {'id': config_id}
         self.rpc_client.create_software_config.return_value = value
+        props = dict(self.component.properties)
         self.component.handle_create()
+        self.rpc_client.create_software_config.assert_called_with(
+            self.ctx,
+            group='component',
+            name=None,
+            inputs=props['inputs'],
+            outputs=props['outputs'],
+            config={'configs': props['configs']},
+            options=None)
         self.assertEqual(config_id, self.component.resource_id)
 
     def test_handle_delete(self):