--- /dev/null
+# Copyright 2020 Canonical Ltd.
+#
+# 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 asyncio
+from unittest import mock
+from unittest.mock import Mock
+
+import asynctest
+
+from n2vc.exceptions import N2VCTimeoutException
+from n2vc.juju_observer import JujuModelObserver, _Entity
+
+
+class FakeObject:
+ def __init__(self):
+ self.complete = True
+
+
+class JujuModelObserverTest(asynctest.TestCase):
+ def setUp(self):
+ self.n2vc = Mock()
+ self.model = Mock()
+ self.juju_observer = JujuModelObserver(n2vc=self.n2vc, model=self.model)
+ self.loop = asyncio.new_event_loop()
+
+ def test_wait_no_retries(self):
+ obj = FakeObject()
+ entity = _Entity(entity_id="eid-1", entity_type="fake", obj=obj, db_dict={})
+ result = self.loop.run_until_complete(
+ self.juju_observer._wait_for_entity(
+ entity=entity,
+ field_to_check="complete",
+ final_states_list=[True],
+ progress_timeout=None,
+ total_timeout=None,
+ )
+ )
+ self.assertEqual(result, 0)
+
+ @mock.patch("n2vc.juju_observer.asyncio.wait_for")
+ def test_wait_default_values(self, wait_for):
+ wait_for.return_value = asyncio.Future()
+ wait_for.return_value.set_result(None)
+ obj = FakeObject()
+ obj.complete = False
+ entity = _Entity(entity_id="eid-1", entity_type="fake", obj=obj, db_dict={})
+ with self.assertRaises(N2VCTimeoutException):
+ self.loop.run_until_complete(
+ self.juju_observer._wait_for_entity(
+ entity=entity,
+ field_to_check="complete",
+ final_states_list=[True],
+ progress_timeout=None,
+ total_timeout=None,
+ )
+ )
+ wait_for.assert_called_once_with(fut=mock.ANY, timeout=3600.0)
+
+ @mock.patch("n2vc.juju_observer.asyncio.wait_for")
+ def test_wait_default_progress(self, wait_for):
+ wait_for.return_value = asyncio.Future()
+ wait_for.return_value.set_result(None)
+ obj = FakeObject()
+ obj.complete = False
+ entity = _Entity(entity_id="eid-1", entity_type="fake", obj=obj, db_dict={})
+ with self.assertRaises(N2VCTimeoutException):
+ self.loop.run_until_complete(
+ self.juju_observer._wait_for_entity(
+ entity=entity,
+ field_to_check="complete",
+ final_states_list=[True],
+ progress_timeout=4000,
+ total_timeout=None,
+ )
+ )
+ wait_for.assert_called_once_with(fut=mock.ANY, timeout=3600.0)
+
+ @mock.patch("n2vc.juju_observer.asyncio.wait_for")
+ def test_wait_default_total(self, wait_for):
+ wait_for.return_value = asyncio.Future()
+ wait_for.return_value.set_result(None)
+ obj = FakeObject()
+ obj.complete = False
+ entity = _Entity(entity_id="eid-1", entity_type="fake", obj=obj, db_dict={})
+ with self.assertRaises(N2VCTimeoutException):
+ self.loop.run_until_complete(
+ self.juju_observer._wait_for_entity(
+ entity=entity,
+ field_to_check="complete",
+ final_states_list=[True],
+ progress_timeout=None,
+ total_timeout=4000.0,
+ )
+ )
+ wait_for.assert_called_once_with(fut=mock.ANY, timeout=3600.0)
+
+ @mock.patch("n2vc.juju_observer.asyncio.wait_for")
+ def test_wait_total_less_than_progress_timeout(self, wait_for):
+ wait_for.return_value = asyncio.Future()
+ wait_for.return_value.set_result(None)
+ obj = FakeObject()
+ obj.complete = False
+ entity = _Entity(entity_id="eid-1", entity_type="fake", obj=obj, db_dict={})
+ with self.assertRaises(N2VCTimeoutException):
+ self.loop.run_until_complete(
+ self.juju_observer._wait_for_entity(
+ entity=entity,
+ field_to_check="complete",
+ final_states_list=[True],
+ progress_timeout=4500.0,
+ total_timeout=3000.0,
+ )
+ )
+ wait_for.assert_called_once_with(fut=mock.ANY, timeout=3000.0)
+
+ @mock.patch("n2vc.juju_observer.asyncio.wait_for")
+ def test_wait_progress_less_than_total_timeout(self, wait_for):
+ wait_for.return_value = asyncio.Future()
+ wait_for.return_value.set_result(None)
+ obj = FakeObject()
+ obj.complete = False
+ entity = _Entity(entity_id="eid-1", entity_type="fake", obj=obj, db_dict={})
+ with self.assertRaises(N2VCTimeoutException):
+ self.loop.run_until_complete(
+ self.juju_observer._wait_for_entity(
+ entity=entity,
+ field_to_check="complete",
+ final_states_list=[True],
+ progress_timeout=1500.0,
+ total_timeout=3000.0,
+ )
+ )
+ wait_for.assert_called_once_with(fut=mock.ANY, timeout=1500.0)
+
+ def test_wait_negative_timeout(self):
+ obj = FakeObject()
+ entity = _Entity(entity_id="eid-1", entity_type="fake", obj=obj, db_dict={})
+ with self.assertRaises(N2VCTimeoutException):
+ self.loop.run_until_complete(
+ self.juju_observer._wait_for_entity(
+ entity=entity,
+ field_to_check="complete",
+ final_states_list=[True],
+ progress_timeout=None,
+ total_timeout=-1000,
+ )
+ )