def setUp(self):
self.timeserie = TimeSerie()
points = [
(ts, 1) for ts in range(0, 24 * 3600, 3600)
]
self.timewindow = TimeWindow(start=points[0][0], stop=points[-1][0])
self.points = points
def perfdata(
self, metric_id, timewindow=None, period=None, with_meta=True,
limit=0, skip=0, timeserie=None
):
if timewindow is not None:
timewindow = TimeWindow(**timewindow)
if timeserie is not None:
if period is None:
period = timeserie.pop('period', None)
timeserie = TimeSerie(**timeserie)
if period is not None:
timeserie.period = Period(**period)
if not isinstance(metric_id, list):
metrics = [metric_id]
else:
metrics = metric_id
result = []
for metric_id in metrics:
pts, meta = self.manager.get(
metric_id=metric_id, with_meta=True,
timewindow=timewindow, limit=limit, skip=skip
)
meta = meta[0]
if timeserie is not None:
pts = timeserie.calculate(pts, timewindow, meta=meta)
if with_meta:
result.append({
"points": pts,
"meta": meta
})
else:
result.append({
"points": pts
})
return (result, len(result))
def test_scenario(self):
"""
Calculate aggregations over 5 years
"""
timewindow = self._five_years_timewidow()
# for all round_time values
for round_time in (True, False):
unit_length = 3600
# for all units
for index, unit in enumerate(Period.UNITS):
max_value_unit = Period.MAX_UNIT_VALUES[index]
if unit in (
Period.MICROSECOND,
Period.SECOND,
Period.MINUTE,
Period.WEEK,
Period.MONTH,
Period.YEAR
):
continue
value = randint(2, max_value_unit)
period = Period(**{unit: value})
kwargs = {'period': period}
period_length = unit_length * value
timeserie = TimeSerie(round_time=round_time, **kwargs)
timesteps = timeserie.timesteps(timewindow)
timesteps_gap = timesteps[1] - timesteps[0]
self.assertEqual(timesteps_gap, period_length)
for i in range(5):
points = [
(t, random()) for t in
range(
int(timewindow.start()),
int(timewindow.stop()),
Period(**{unit: 1}).total_seconds()
)
]
aggregated_points = timeserie.calculate(points, timewindow)
len_aggregated_points = len(aggregated_points)
self.assertIn(
len(timesteps) - 1,
(
len_aggregated_points,
len_aggregated_points + 1
)
)
unit_length *= max_value_unit
class TimeSerieTest(TestCase):
def setUp(self):
self.timeserie = TimeSerie()
points = [
(ts, 1) for ts in range(0, 24 * 3600, 3600)
]
self.timewindow = TimeWindow(start=points[0][0], stop=points[-1][0])
self.points = points
def _test_agg_per_x(self, period, len_points):
self.timeserie.period = period
agg_points = self.timeserie.calculate(
points=self.points, timewindow=self.timewindow
)
self.assertEqual(len(agg_points), len_points)
def test_aggregation_per_day(self):
period = Period(day=1)
self._test_agg_per_x(period, 1)
def test_aggregation_per_6hours(self):
period = Period(hour=6)
self._test_agg_per_x(period, 4)
def _five_years_timewidow(self):
now = time()
rd = relativedelta(years=5)
now = datetime.now()
past = now - rd
past_ts = mktime(past.timetuple())
now_ts = mktime(now.timetuple())
result = TimeWindow(start=past_ts, stop=now_ts)
return result
def test_scenario(self):
"""
Calculate aggregations over 5 years
"""
timewindow = self._five_years_timewidow()
# for all round_time values
for round_time in (True, False):
unit_length = 3600
# for all units
for index, unit in enumerate(Period.UNITS):
max_value_unit = Period.MAX_UNIT_VALUES[index]
if unit in (
Period.MICROSECOND,
Period.SECOND,
Period.MINUTE,
Period.WEEK,
Period.MONTH,
Period.YEAR
):
continue
value = randint(2, max_value_unit)
period = Period(**{unit: value})
kwargs = {'period': period}
period_length = unit_length * value
timeserie = TimeSerie(round_time=round_time, **kwargs)
timesteps = timeserie.timesteps(timewindow)
timesteps_gap = timesteps[1] - timesteps[0]
self.assertEqual(timesteps_gap, period_length)
for i in range(5):
points = [
(t, random()) for t in
range(
int(timewindow.start()),
int(timewindow.stop()),
Period(**{unit: 1}).total_seconds()
)
]
aggregated_points = timeserie.calculate(points, timewindow)
len_aggregated_points = len(aggregated_points)
self.assertIn(
len(timesteps) - 1,
(
len_aggregated_points,
len_aggregated_points + 1
)
)
unit_length *= max_value_unit