Merge "Add test for update_claim"

zun/tests/unit/compute/test_compute_node_tracker.py

@@ -0,0 +1,72 @@
+#    Copyright 2016 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.
+
+import mock
+
+from zun.compute import claims
+from zun.compute import compute_node_tracker
+from zun import objects
+from zun.tests import base
+from zun.tests.unit.container import fake_driver
+from zun.tests.unit.objects import utils as obj_utils
+
+
+class TestNodeStracker(base.TestCase):
+
+    def setUp(self):
+        super(TestNodeStracker, self).setUp()
+        self.container_driver = fake_driver.FakeDriver()
+        self._resource_tracker = compute_node_tracker.ComputeNodeTracker(
+            'testhost', self.container_driver)
+
+    @mock.patch.object(compute_node_tracker.ComputeNodeTracker, '_update')
+    @mock.patch.object(compute_node_tracker.ComputeNodeTracker,
+                       '_update_usage_from_container_update')
+    @mock.patch.object(claims, 'UpdateClaim')
+    def test_container_update_same_resource(self, mock_claim,
+                                            mock_container_update,
+                                            mock_update):
+        container1 = obj_utils.get_test_container(
+            self.context, cpu=1, memory=1024)
+        container2 = obj_utils.get_test_container(
+            self.context, cpu=1, memory=1024)
+
+        self._resource_tracker.container_update_claim(
+            self.context, container1, container2)
+        self.assertFalse(mock_claim.called)
+        self.assertFalse(mock_container_update.called)
+        self.assertFalse(mock_update.called)
+
+    @mock.patch.object(
+        compute_node_tracker.ComputeNodeTracker, '_get_compute_node')
+    @mock.patch.object(compute_node_tracker.ComputeNodeTracker, '_update')
+    @mock.patch.object(compute_node_tracker.ComputeNodeTracker,
+                       '_update_usage_from_container_update')
+    @mock.patch.object(claims, 'UpdateClaim')
+    def test_container_update(self, mock_claim, mock_container_update,
+                              mock_update, mock_get_node):
+        container1 = obj_utils.get_test_container(
+            self.context, cpu=1, memory=1024)
+        container2 = obj_utils.get_test_container(
+            self.context, cpu2=2, memory=2048)
+        node = objects.ComputeNode(self.context)
+        node.cpu = 10
+        node.memory = 3072
+        mock_get_node.return_value = node
+
+        self._resource_tracker.container_update_claim(
+            self.context, container1, container2)
+        self.assertTrue(mock_claim.called)
+        self.assertTrue(mock_container_update.called)
+        self.assertTrue(mock_update.called)