Add missing files,

unit_tests/test_actions.py

@@ -0,0 +1,150 @@
+import mock
+
+from test_utils import CharmTestCase
+
+import actions.actions
+
+
+class PauseTestCase(CharmTestCase):
+
+    def setUp(self):
+        super(PauseTestCase, self).setUp(
+            actions.actions, ["service_pause", "status_set"])
+
+    def test_pauses_services(self):
+        """Pause action pauses all Keystone services."""
+        pause_calls = []
+
+        def fake_service_pause(svc):
+            pause_calls.append(svc)
+            return True
+
+        self.service_pause.side_effect = fake_service_pause
+
+        actions.actions.pause([])
+        self.assertEqual(pause_calls, ['haproxy', 'keystone', 'apache2'])
+
+    def test_bails_out_early_on_error(self):
+        """Pause action fails early if there are errors stopping a service."""
+        pause_calls = []
+
+        def maybe_kill(svc):
+            if svc == "keystone":
+                return False
+            else:
+                pause_calls.append(svc)
+                return True
+
+        self.service_pause.side_effect = maybe_kill
+        self.assertRaisesRegexp(
+            Exception, "keystone didn't stop cleanly.",
+            actions.actions.pause, [])
+        self.assertEqual(pause_calls, ['haproxy'])
+
+    def test_status_mode(self):
+        """Pause action sets the status to maintenance."""
+        status_calls = []
+        self.status_set.side_effect = lambda state, msg: status_calls.append(
+            state)
+
+        actions.actions.pause([])
+        self.assertEqual(status_calls, ["maintenance"])
+
+    def test_status_message(self):
+        """Pause action sets a status message reflecting that it's paused."""
+        status_calls = []
+        self.status_set.side_effect = lambda state, msg: status_calls.append(
+            msg)
+
+        actions.actions.pause([])
+        self.assertEqual(
+            status_calls, ["Paused. "
+                           "Use 'resume' action to resume normal service."])
+
+
+class ResumeTestCase(CharmTestCase):
+
+    def setUp(self):
+        super(ResumeTestCase, self).setUp(
+            actions.actions, ["service_resume", "status_set"])
+
+    def test_resumes_services(self):
+        """Resume action resumes all Keystone services."""
+        resume_calls = []
+
+        def fake_service_resume(svc):
+            resume_calls.append(svc)
+            return True
+
+        self.service_resume.side_effect = fake_service_resume
+        actions.actions.resume([])
+        self.assertEqual(resume_calls, ['haproxy', 'keystone', 'apache2'])
+
+    def test_bails_out_early_on_error(self):
+        """Resume action fails early if there are errors starting a service."""
+        resume_calls = []
+
+        def maybe_kill(svc):
+            if svc == "keystone":
+                return False
+            else:
+                resume_calls.append(svc)
+                return True
+
+        self.service_resume.side_effect = maybe_kill
+        self.assertRaisesRegexp(
+            Exception, "keystone didn't start cleanly.",
+            actions.actions.resume, [])
+        self.assertEqual(resume_calls, ['haproxy'])
+
+    def test_status_mode(self):
+        """Resume action sets the status to maintenance."""
+        status_calls = []
+        self.status_set.side_effect = lambda state, msg: status_calls.append(
+            state)
+
+        actions.actions.resume([])
+        self.assertEqual(status_calls, ["active"])
+
+    def test_status_message(self):
+        """Resume action sets an empty status message."""
+        status_calls = []
+        self.status_set.side_effect = lambda state, msg: status_calls.append(
+            msg)
+
+        actions.actions.resume([])
+        self.assertEqual(status_calls, [""])
+
+
+class MainTestCase(CharmTestCase):
+
+    def setUp(self):
+        super(MainTestCase, self).setUp(actions.actions, ["action_fail"])
+
+    def test_invokes_action(self):
+        dummy_calls = []
+
+        def dummy_action(args):
+            dummy_calls.append(True)
+
+        with mock.patch.dict(actions.actions.ACTIONS, {"foo": dummy_action}):
+            actions.actions.main(["foo"])
+        self.assertEqual(dummy_calls, [True])
+
+    def test_unknown_action(self):
+        """Unknown actions aren't a traceback."""
+        exit_string = actions.actions.main(["foo"])
+        self.assertEqual("Action foo undefined", exit_string)
+
+    def test_failing_action(self):
+        """Actions which traceback trigger action_fail() calls."""
+        dummy_calls = []
+
+        self.action_fail.side_effect = dummy_calls.append
+
+        def dummy_action(args):
+            raise ValueError("uh oh")
+
+        with mock.patch.dict(actions.actions.ACTIONS, {"foo": dummy_action}):
+            actions.actions.main(["foo"])
+        self.assertEqual(dummy_calls, ["uh oh"])