Implement Stack status and action properties

This splits the stack_status back to an action and status,
as it is represented internally in heat-engine.

It assumes there will not be an action which contains an _.

This change is needed for code (such as tempest) which assumes a
convention of all openstack client resources having a status property.

Change-Id: If00db5508bf8469b1106cac20b8fc10f7e1a854d

heatclient/tests/test_stacks.py

@@ -0,0 +1,45 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+#
+#    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 heatclient.v1.stacks import Stack
+
+import testscenarios
+from testscenarios.scenarios import multiply_scenarios
+import testtools
+
+
+load_tests = testscenarios.load_tests_apply_scenarios
+
+
+class StackStatusActionTest(testtools.TestCase):
+
+    scenarios = multiply_scenarios([
+        ('CREATE', dict(action='CREATE')),
+        ('DELETE', dict(action='DELETE')),
+        ('UPDATE', dict(action='UPDATE')),
+        ('ROLLBACK', dict(action='ROLLBACK')),
+        ('SUSPEND', dict(action='SUSPEND')),
+        ('RESUME', dict(action='RESUME'))
+    ], [
+        ('IN_PROGRESS', dict(status='IN_PROGRESS')),
+        ('FAILED', dict(status='FAILED')),
+        ('COMPLETE', dict(status='COMPLETE'))
+    ])
+
+    def test_status_action(self):
+        stack_status = '%s_%s' % (self.action, self.status)
+        stack = Stack(None, {'stack_status': stack_status})
+        self.assertEqual(self.action, stack.action)
+        self.assertEqual(self.status, stack.status)

heatclient/v1/stacks.py

@@ -33,6 +33,18 @@ class Stack(base.Resource):
     def data(self, **kwargs):
         return self.manager.data(self, **kwargs)
 
+    @property
+    def action(self):
+        s = self.stack_status
+        # Return everything before the first underscore
+        return s[:s.index('_')]
+
+    @property
+    def status(self):
+        s = self.stack_status
+        # Return everything after the first underscore
+        return s[s.index('_') + 1:]
+
 
 class StackManager(base.Manager):
     resource_class = Stack