[API] Add API class

Current implementation requires additional steps before api usage:
 - setting(initialization) config;
 - logging configuration;
 - etc.

All required steps already implemented on CLI level. This patch just moves
it on API layer, so users will be able to use rally api right away.

Change-Id: I806a6b5a915c751095f03ab128b41cb79ec5d3c5

rally/plugins/openstack/hook/fault_injection.py

@@ -15,8 +15,8 @@
 
 import os_faults
 
-from rally import api
 from rally.common import logging
+from rally.common import objects
 from rally import consts
 from rally.task import hook
 
@@ -56,7 +56,7 @@ class FaultInjectionHook(hook.Hook):
     }
 
     def get_cloud_config(self):
-        deployment = api.Deployment.get(self.task["deployment_uuid"])
+        deployment = objects.Deployment.get(self.task["deployment_uuid"])
         deployment_config = deployment["config"]
         if deployment_config["type"] != "ExistingCloud":
             return None

tests/unit/fakes.py

@@ -27,6 +27,7 @@ from novaclient import exceptions as nova_exceptions
 import six
 from swiftclient import exceptions as swift_exceptions
 
+from rally import api
 from rally.common import objects
 from rally.common import utils as rally_utils
 from rally import consts
@@ -1847,3 +1848,18 @@ class FakeTask(dict):
 
     def to_dict(self):
         return self
+
+
+class FakeAPI(object):
+
+    def __init__(self):
+        self._deployment = mock.Mock(spec=api._Deployment)
+        self._task = mock.Mock(spec=api._Task)
+
+    @property
+    def deployment(self):
+        return self._deployment
+
+    @property
+    def task(self):
+        return self._task

tests/unit/plugins/openstack/hook/test_fault_injection.py

@@ -60,7 +60,7 @@ class FaultInjectionHookTestCase(test.TestCase):
                               fault_injection.FaultInjectionHook.validate,
                               config)
 
-    @mock.patch("rally.cli.commands.deployment.api.Deployment.get")
+    @mock.patch("rally.common.objects.Deployment.get")
     @mock.patch("os_faults.human_api")
     @mock.patch("os_faults.connect")
     @mock.patch("rally.common.utils.Timer", side_effect=fakes.FakeTimer)
@@ -84,7 +84,7 @@ class FaultInjectionHookTestCase(test.TestCase):
         injector_inst.verify.assert_called_once_with()
         mock_human_api.assert_called_once_with(injector_inst, "foo")
 
-    @mock.patch("rally.cli.commands.deployment.api.Deployment.get")
+    @mock.patch("rally.common.objects.Deployment.get")
     @mock.patch("os_faults.human_api")
     @mock.patch("os_faults.connect")
     @mock.patch("rally.common.utils.Timer", side_effect=fakes.FakeTimer)
@@ -109,7 +109,7 @@ class FaultInjectionHookTestCase(test.TestCase):
         mock_connect.assert_called_once_with({"conf": "foo_config"})
         mock_human_api.assert_called_once_with(injector_inst, "foo")
 
-    @mock.patch("rally.cli.commands.deployment.api.Deployment.get")
+    @mock.patch("rally.common.objects.Deployment.get")
     @mock.patch("os_faults.human_api")
     @mock.patch("os_faults.connect")
     @mock.patch("rally.common.utils.Timer", side_effect=fakes.FakeTimer)