tahoe-lafs/src/allmydata/test/test_stats.py
2008-04-30 11:52:31 -07:00

39 lines
1.2 KiB
Python

from twisted.trial import unittest
from twisted.application import service
from allmydata.stats import CPUUsageMonitor
from allmydata.util import testutil
class FasterMonitor(CPUUsageMonitor):
POLL_INTERVAL = 0.1
class CPUUsage(unittest.TestCase, testutil.PollMixin, testutil.StallMixin):
def setUp(self):
self.s = service.MultiService()
self.s.startService()
def tearDown(self):
return self.s.stopService()
def test_monitor(self):
m = FasterMonitor()
s = m.get_stats() # before it has been started
self.failIf("cpu_monitor.1min_avg" in s)
m.setServiceParent(self.s)
def _poller():
return bool(len(m.samples) == m.HISTORY_LENGTH+1)
d = self.poll(_poller)
# pause one more second, to make sure that the history-trimming code
# is exercised
d.addCallback(self.stall, 1.0)
def _check(res):
s = m.get_stats()
self.failUnless("cpu_monitor.1min_avg" in s)
self.failUnless("cpu_monitor.5min_avg" in s)
self.failUnless("cpu_monitor.15min_avg" in s)
self.failUnless("cpu_monitor.total" in s)
d.addCallback(_check)
return d