def test_create_and_info(self):
"""
Create a db and use info() to validate
"""
# check if invalid configuration fails successfully
for retention in (0, []):
with AssertRaisesException(whisper.InvalidConfiguration('You must specify at least one archive configuration!')):
whisper.create(self.filename, retention)
# create a new db with a valid configuration
whisper.create(self.filename, self.retention)
# Ensure another file can't be created when one exists already
with AssertRaisesException(whisper.InvalidConfiguration('File {0} already exists!'.format(self.filename))):
whisper.create(self.filename, self.retention)
info = whisper.info(self.filename)
# check header information
self.assertEqual(info['maxRetention'],
max([a[0] * a[1] for a in self.retention]))
self.assertEqual(info['aggregationMethod'], 'average')
self.assertEqual(info['xFilesFactor'], 0.5)
# check archive information
self.assertEqual(len(info['archives']), len(self.retention))
self.assertEqual(info['archives'][0]['points'], self.retention[0][1])
self.assertEqual(info['archives'][0]['secondsPerPoint'],
self.retention[0][0])
self.assertEqual(info['archives'][0]['retention'],
self.retention[0][0] * self.retention[0][1])
self.assertEqual(info['archives'][1]['retention'],
self.retention[1][0] * self.retention[1][1])
def test_number_of_points(self):
"""
number of points
"""
whisper.validateArchiveList(self.retention)
with AssertRaisesException(whisper.InvalidConfiguration("Each archive must have at least enough points to consolidate to the next archive (archive1 consolidates 60 of archive0's points but it has only 30 total points)")):
whisper.validateArchiveList([(1, 30), (60, 60)])
def test_timespan_coverage(self):
"""
timespan coverage
"""
whisper.validateArchiveList(self.retention)
with AssertRaisesException(whisper.InvalidConfiguration('Lower precision archives must cover larger time intervals than higher precision archives (archive0: 60 seconds, archive1: 10 seconds)')):
whisper.validateArchiveList([(1, 60), (10, 1)])
def test_even_precision_division(self):
"""
even precision division
"""
whisper.validateArchiveList([(60, 60), (6, 60)])
with AssertRaisesException(whisper.InvalidConfiguration("Higher precision archives' precision must evenly divide all lower precision archives' precision (archive0: 7, archive1: 60)")):
whisper.validateArchiveList([(60, 60), (7, 60)])
def test_validate_archive_list(self):
"""
blank archive config
"""
with AssertRaisesException(
whisper.InvalidConfiguration(
'You must specify at least one archive configuration!')):
whisper.validateArchiveList([])
def test_duplicate(self):
"""
Checking duplicates
"""
# TODO: Fix the lies with whisper.validateArchiveList() saying it returns True/False
self.assertIsNone(whisper.validateArchiveList(self.retention))
with AssertRaisesException(whisper.InvalidConfiguration('A Whisper database may not be configured having two archives with the same precision (archive0: (1, 60), archive1: (1, 60))')):
whisper.validateArchiveList([(1, 60), (60, 60), (1, 60)])