151 lines
5.2 KiB
Python
151 lines
5.2 KiB
Python
# Copyright 2010-2011 OpenStack Foundation
|
|
# Copyright (c) 2013 Hewlett-Packard Development Company, L.P.
|
|
#
|
|
# 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 os
|
|
|
|
import logging
|
|
import fixtures
|
|
import select
|
|
import socket
|
|
import testtools
|
|
import threading
|
|
import time
|
|
|
|
_TRUE_VALUES = ('True', 'true', '1', 'yes')
|
|
|
|
logger = logging.getLogger("afsmon.tests.base")
|
|
|
|
class FakeStatsd(threading.Thread):
|
|
def __init__(self):
|
|
threading.Thread.__init__(self)
|
|
self.daemon = True
|
|
self.sock = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
|
|
self.sock.bind(('', 0))
|
|
self.port = self.sock.getsockname()[1]
|
|
self.wake_read, self.wake_write = os.pipe()
|
|
self.stats = []
|
|
|
|
def run(self):
|
|
while True:
|
|
poll = select.poll()
|
|
poll.register(self.sock, select.POLLIN)
|
|
poll.register(self.wake_read, select.POLLIN)
|
|
ret = poll.poll()
|
|
for (fd, event) in ret:
|
|
if fd == self.sock.fileno():
|
|
data = self.sock.recvfrom(1024)
|
|
if not data:
|
|
return
|
|
self.stats.append(data[0])
|
|
if fd == self.wake_read:
|
|
return
|
|
|
|
def stop(self):
|
|
os.write(self.wake_write, b'1\n')
|
|
|
|
|
|
class TestCase(testtools.TestCase):
|
|
"""Test case base class for all unit tests."""
|
|
|
|
def setUp(self):
|
|
"""Run before each test method to initialize test environment."""
|
|
|
|
super(TestCase, self).setUp()
|
|
test_timeout = os.environ.get('OS_TEST_TIMEOUT', 0)
|
|
try:
|
|
test_timeout = int(test_timeout)
|
|
except ValueError:
|
|
# If timeout value is invalid do not set a timeout.
|
|
test_timeout = 0
|
|
if test_timeout > 0:
|
|
self.useFixture(fixtures.Timeout(test_timeout, gentle=True))
|
|
|
|
self.useFixture(fixtures.NestedTempfile())
|
|
self.useFixture(fixtures.TempHomeDir())
|
|
|
|
if os.environ.get('OS_STDOUT_CAPTURE') in _TRUE_VALUES:
|
|
stdout = self.useFixture(fixtures.StringStream('stdout')).stream
|
|
self.useFixture(fixtures.MonkeyPatch('sys.stdout', stdout))
|
|
if os.environ.get('OS_STDERR_CAPTURE') in _TRUE_VALUES:
|
|
stderr = self.useFixture(fixtures.StringStream('stderr')).stream
|
|
self.useFixture(fixtures.MonkeyPatch('sys.stderr', stderr))
|
|
|
|
self.log_fixture = self.useFixture(
|
|
fixtures.FakeLogger(level=logging.DEBUG))
|
|
|
|
self.statsd = FakeStatsd()
|
|
os.environ['STATSD_HOST'] = '127.0.0.1'
|
|
os.environ['STATSD_PORT'] = str(self.statsd.port)
|
|
self.statsd.start()
|
|
|
|
def shutdown(self):
|
|
self.statsd.stop()
|
|
self.statsd.join()
|
|
|
|
def assertReportedStat(self, key, value=None, kind=None):
|
|
"""Check statsd output
|
|
|
|
Check statsd return values. A ``value`` should specify a
|
|
``kind``, however a ``kind`` may be specified without a
|
|
``value`` for a generic match. Leave both empy to just check
|
|
for key presence.
|
|
|
|
:arg str key: The statsd key
|
|
:arg str value: The expected value of the metric ``key``
|
|
:arg str kind: The expected type of the metric ``key`` For example
|
|
|
|
- ``c`` counter
|
|
- ``g`` gauge
|
|
- ``ms`` timing
|
|
- ``s`` set
|
|
"""
|
|
if value:
|
|
self.assertNotEqual(kind, None)
|
|
|
|
start = time.time()
|
|
while time.time() < (start + 5):
|
|
# Note our fake statsd just queues up results in a queue.
|
|
# We just keep going through them until we find one that
|
|
# matches, or fail out.
|
|
for stat in self.statsd.stats:
|
|
k, v = stat.decode('utf-8').split(':')
|
|
if key == k:
|
|
if kind is None:
|
|
# key with no qualifiers is found
|
|
return True
|
|
|
|
s_value, s_kind = v.split('|')
|
|
# if no kind match, look for other keys
|
|
if kind != s_kind:
|
|
continue
|
|
|
|
if value:
|
|
# special-case value|ms because statsd can turn
|
|
# timing results into float of indeterminate
|
|
# length, hence foiling string matching.
|
|
if kind == 'ms':
|
|
if float(value) == float(s_value):
|
|
return True
|
|
if value == s_value:
|
|
return True
|
|
# otherwise keep looking for other matches
|
|
continue
|
|
|
|
# this key matches
|
|
return True
|
|
time.sleep(0.1)
|
|
|
|
raise Exception("Key %s not found in reported stats" % key)
|