Copy LoopingCall from nova for service.py

Change-Id: Ib6683324f92345c17cfd7234d08070b48ffb4d3e
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>

1 files changed, 52 insertions, 0 deletions

diff --git a/tests/unit/test_loopingcall.py b/tests/unit/test_loopingcall.py
new file mode 100644
index 0000000..11aa7e3
--- /dev/null
+++ b/tests/unit/test_loopingcall.py
@@ -0,0 +1,52 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2012 Red Hat, Inc.
+#
+#    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 unittest
+
+from openstack.common import loopingcall
+
+
+class LoopingCallTestCase(unittest.TestCase):
+
+    def setUp(self):
+        self.num_runs = 0
+
+    def test_return_true(self):
+        def _raise_it():
+            raise loopingcall.LoopingCallDone(True)
+
+        timer = loopingcall.LoopingCall(_raise_it)
+        self.assertTrue(timer.start(interval=0.5).wait())
+
+    def test_return_false(self):
+        def _raise_it():
+            raise loopingcall.LoopingCallDone(False)
+
+        timer = loopingcall.LoopingCall(_raise_it)
+        self.assertFalse(timer.start(interval=0.5).wait())
+
+    def test_repeat(self):
+        self.num_runs = 2
+
+        def _wait_for_zero():
+            """Called at an interval until num_runs == 0."""
+            if self.num_runs == 0:
+                raise loopingcall.LoopingCallDone(False)
+            else:
+                self.num_runs = self.num_runs - 1
+
+        timer = loopingcall.LoopingCall(_wait_for_zero)
+        self.assertFalse(timer.start(interval=0.5).wait())