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# Copyright 2017 Microsoft Corporation
#
# 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.
#
# Requires Python 2.4+ and Openssl 1.0+
#
from __future__ import print_function
from datetime import datetime
import azurelinuxagent.common.event as event
import azurelinuxagent.common.logger as logger
from azurelinuxagent.common.event import add_event, \
mark_event_status, should_emit_event
from azurelinuxagent.common.future import ustr
from azurelinuxagent.common.version import CURRENT_VERSION
from tests.tools import *
class TestEvent(AgentTestCase):
def test_event_status_event_marked(self):
es = event.__event_status__
self.assertFalse(es.event_marked("Foo", "1.2", "FauxOperation"))
es.mark_event_status("Foo", "1.2", "FauxOperation", True)
self.assertTrue(es.event_marked("Foo", "1.2", "FauxOperation"))
event.__event_status__ = event.EventStatus()
event.init_event_status(self.tmp_dir)
es = event.__event_status__
self.assertTrue(es.event_marked("Foo", "1.2", "FauxOperation"))
def test_event_status_defaults_to_success(self):
es = event.__event_status__
self.assertTrue(es.event_succeeded("Foo", "1.2", "FauxOperation"))
def test_event_status_records_status(self):
d = tempfile.mkdtemp()
es = event.EventStatus(tempfile.mkdtemp())
es.mark_event_status("Foo", "1.2", "FauxOperation", True)
self.assertTrue(es.event_succeeded("Foo", "1.2", "FauxOperation"))
es.mark_event_status("Foo", "1.2", "FauxOperation", False)
self.assertFalse(es.event_succeeded("Foo", "1.2", "FauxOperation"))
def test_event_status_preserves_state(self):
es = event.__event_status__
es.mark_event_status("Foo", "1.2", "FauxOperation", False)
self.assertFalse(es.event_succeeded("Foo", "1.2", "FauxOperation"))
event.__event_status__ = event.EventStatus()
event.init_event_status(self.tmp_dir)
es = event.__event_status__
self.assertFalse(es.event_succeeded("Foo", "1.2", "FauxOperation"))
def test_should_emit_event_ignores_unknown_operations(self):
event.__event_status__ = event.EventStatus(tempfile.mkdtemp())
self.assertTrue(event.should_emit_event("Foo", "1.2", "FauxOperation", True))
self.assertTrue(event.should_emit_event("Foo", "1.2", "FauxOperation", False))
# Marking the event has no effect
event.mark_event_status("Foo", "1.2", "FauxOperation", True)
self.assertTrue(event.should_emit_event("Foo", "1.2", "FauxOperation", True))
self.assertTrue(event.should_emit_event("Foo", "1.2", "FauxOperation", False))
def test_should_emit_event_handles_known_operations(self):
event.__event_status__ = event.EventStatus(tempfile.mkdtemp())
# Known operations always initially "fire"
for op in event.__event_status_operations__:
self.assertTrue(event.should_emit_event("Foo", "1.2", op, True))
self.assertTrue(event.should_emit_event("Foo", "1.2", op, False))
# Note a success event...
for op in event.__event_status_operations__:
event.mark_event_status("Foo", "1.2", op, True)
# Subsequent success events should not fire, but failures will
for op in event.__event_status_operations__:
self.assertFalse(event.should_emit_event("Foo", "1.2", op, True))
self.assertTrue(event.should_emit_event("Foo", "1.2", op, False))
# Note a failure event...
for op in event.__event_status_operations__:
event.mark_event_status("Foo", "1.2", op, False)
# Subsequent success events fire and failure do not
for op in event.__event_status_operations__:
self.assertTrue(event.should_emit_event("Foo", "1.2", op, True))
self.assertFalse(event.should_emit_event("Foo", "1.2", op, False))
@patch('azurelinuxagent.common.event.EventLogger.add_event')
def test_periodic_emits_if_not_previously_sent(self, mock_event):
event.__event_logger__.reset_periodic()
event.add_periodic(logger.EVERY_DAY, "FauxEvent")
mock_event.assert_called_once()
@patch('azurelinuxagent.common.event.EventLogger.add_event')
def test_periodic_does_not_emit_if_previously_sent(self, mock_event):
event.__event_logger__.reset_periodic()
event.add_periodic(logger.EVERY_DAY, "FauxEvent")
self.assertEqual(1, mock_event.call_count)
event.add_periodic(logger.EVERY_DAY, "FauxEvent")
self.assertEqual(1, mock_event.call_count)
@patch('azurelinuxagent.common.event.EventLogger.add_event')
def test_periodic_emits_if_forced(self, mock_event):
event.__event_logger__.reset_periodic()
event.add_periodic(logger.EVERY_DAY, "FauxEvent")
self.assertEqual(1, mock_event.call_count)
event.add_periodic(logger.EVERY_DAY, "FauxEvent", force=True)
self.assertEqual(2, mock_event.call_count)
@patch('azurelinuxagent.common.event.EventLogger.add_event')
def test_periodic_emits_after_elapsed_delta(self, mock_event):
event.__event_logger__.reset_periodic()
event.add_periodic(logger.EVERY_DAY, "FauxEvent")
self.assertEqual(1, mock_event.call_count)
event.add_periodic(logger.EVERY_DAY, "FauxEvent")
self.assertEqual(1, mock_event.call_count)
h = hash("FauxEvent"+""+ustr(True)+"")
event.__event_logger__.periodic_events[h] = \
datetime.now() - logger.EVERY_DAY - logger.EVERY_HOUR
event.add_periodic(logger.EVERY_DAY, "FauxEvent")
self.assertEqual(2, mock_event.call_count)
@patch('azurelinuxagent.common.event.EventLogger.add_event')
def test_periodic_forwards_args(self, mock_event):
event.__event_logger__.reset_periodic()
event.add_periodic(logger.EVERY_DAY, "FauxEvent")
mock_event.assert_called_once_with(
"FauxEvent",
duration=0, evt_type='', is_internal=False, is_success=True,
log_event=True, message='', op='', version=str(CURRENT_VERSION))
def test_save_event(self):
add_event('test', message='test event')
self.assertTrue(len(os.listdir(self.tmp_dir)) == 1)
def test_save_event_rollover(self):
add_event('test', message='first event')
for i in range(0, 999):
add_event('test', message='test event {0}'.format(i))
events = os.listdir(self.tmp_dir)
events.sort()
self.assertTrue(len(events) == 1000)
first_event = os.path.join(self.tmp_dir, events[0])
with open(first_event) as first_fh:
first_event_text = first_fh.read()
self.assertTrue('first event' in first_event_text)
add_event('test', message='last event')
events = os.listdir(self.tmp_dir)
events.sort()
self.assertTrue(len(events) == 1000, "{0} events found, 1000 expected".format(len(events)))
first_event = os.path.join(self.tmp_dir, events[0])
with open(first_event) as first_fh:
first_event_text = first_fh.read()
self.assertFalse('first event' in first_event_text)
self.assertTrue('test event 0' in first_event_text)
last_event = os.path.join(self.tmp_dir, events[-1])
with open(last_event) as last_fh:
last_event_text = last_fh.read()
self.assertTrue('last event' in last_event_text)
def test_save_event_cleanup(self):
for i in range(0, 2000):
evt = os.path.join(self.tmp_dir, '{0}.tld'.format(ustr(1491004920536531 + i)))
with open(evt, 'w') as fh:
fh.write('test event {0}'.format(i))
events = os.listdir(self.tmp_dir)
self.assertTrue(len(events) == 2000, "{0} events found, 2000 expected".format(len(events)))
add_event('test', message='last event')
events = os.listdir(self.tmp_dir)
events.sort()
self.assertTrue(len(events) == 1000, "{0} events found, 1000 expected".format(len(events)))
first_event = os.path.join(self.tmp_dir, events[0])
with open(first_event) as first_fh:
first_event_text = first_fh.read()
self.assertTrue('test event 1001' in first_event_text)
last_event = os.path.join(self.tmp_dir, events[-1])
with open(last_event) as last_fh:
last_event_text = last_fh.read()
self.assertTrue('last event' in last_event_text)
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