Add unit tests for instance_usage_audit_log_client

This patch adds unit tests for instance_usage_audit_log_client
module

Change-Id: I777bc70d5b97914ea8f4e5276d030f4e1137fe4d
diff --git a/tempest/tests/services/compute/test_instance_usage_audit_log_client.py b/tempest/tests/services/compute/test_instance_usage_audit_log_client.py
new file mode 100644
index 0000000..07efeca
--- /dev/null
+++ b/tempest/tests/services/compute/test_instance_usage_audit_log_client.py
@@ -0,0 +1,90 @@
+# Copyright 2015 NEC Corporation.  All rights reserved.
+#
+#    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.
+
+import datetime
+import httplib2
+
+from oslo_serialization import jsonutils as json
+from oslotest import mockpatch
+
+from tempest.services.compute.json import instance_usage_audit_log_client
+from tempest.tests import base
+from tempest.tests import fake_auth_provider
+
+
+class TestInstanceUsagesAuditLogClient(base.TestCase):
+
+    FAKE_AUDIT_LOG = {
+        "hosts_not_run": [
+            "f4eb7cfd155f4574967f8b55a7faed75"
+        ],
+        "log": {},
+        "num_hosts": 1,
+        "num_hosts_done": 0,
+        "num_hosts_not_run": 1,
+        "num_hosts_running": 0,
+        "overall_status": "0 of 1 hosts done. 0 errors.",
+        "period_beginning": "2012-12-01 00:00:00",
+        "period_ending": "2013-01-01 00:00:00",
+        "total_errors": 0,
+        "total_instances": 0
+    }
+
+    def setUp(self):
+        super(TestInstanceUsagesAuditLogClient, self).setUp()
+        fake_auth = fake_auth_provider.FakeAuthProvider()
+        self.client = (instance_usage_audit_log_client.
+                       InstanceUsagesAuditLogClient(fake_auth, 'compute',
+                                                    'regionOne'))
+
+    def _test_list_instance_usage_audit_logs(self, bytes_body=False):
+        serialized_body = json.dumps({"instance_usage_audit_logs":
+                                      self.FAKE_AUDIT_LOG})
+        if bytes_body:
+            serialized_body = serialized_body.encode('utf-8')
+
+        mocked_resp = (httplib2.Response({'status': 200}), serialized_body)
+        self.useFixture(mockpatch.Patch(
+            'tempest.common.service_client.ServiceClient.get',
+            return_value=mocked_resp))
+        resp = self.client.list_instance_usage_audit_logs()
+        self.assertEqual({"instance_usage_audit_logs": self.FAKE_AUDIT_LOG},
+                         resp)
+
+    def test_list_instance_usage_audit_logs_with_str_body(self):
+        self._test_list_instance_usage_audit_logs()
+
+    def test_list_instance_usage_audit_logs_with_bytes_body(self):
+        self._test_list_instance_usage_audit_logs(bytes_body=True)
+
+    def _test_show_instance_usage_audit_log(self, bytes_body=False):
+        before_time = datetime.datetime(2012, 12, 1, 0, 0)
+        serialized_body = json.dumps({"instance_usage_audit_log":
+                                      self.FAKE_AUDIT_LOG})
+        if bytes_body:
+            serialized_body = serialized_body.encode('utf-8')
+
+        mocked_resp = (httplib2.Response({'status': 200}), serialized_body)
+        self.useFixture(mockpatch.Patch(
+            'tempest.common.service_client.ServiceClient.get',
+            return_value=mocked_resp))
+        resp = self.client.show_instance_usage_audit_log(before_time)
+        self.assertEqual({"instance_usage_audit_log": self.FAKE_AUDIT_LOG},
+                         resp)
+
+    def test_show_instance_usage_audit_log_with_str_body(self):
+        self._test_show_instance_usage_audit_log()
+
+    def test_show_network_with_bytes_body_with_bytes_body(self):
+        self._test_show_instance_usage_audit_log(bytes_body=True)