def testEmptyTimepointsStayEmpty(self):
self.assertEqual(inferTimezones([], sessionStart),
[])
self.assertEqual(inferTimezones([], sessionStart, sessionEnd),
[])
self.assertEqual(inferTimezones([], sessionStart, sessionEnd.astimezone(utcDST)),
[])
def testAmbigousChangeToDST(self):
timepoints = dateRange(sessionStart + 61 * minute, sessionStart + 65 * minute, minute) +\
dateRange(sessionStart + 126 * minute, sessionStart + 130 * minute, minute)
with self.assertRaises(
TimezonesInferrer.TooManyIntervalsBigEnoughForTimeAdvance):
inferTimezones(timepoints, sessionStart,
sessionEnd.astimezone(utcDST))
def testInOpenSessionTimepointsGetSameTimezoneAsStart(self):
self.assertEqual(inferTimezones([[2015, 7, 4, 17, 45, 15, 0]],
sessionStart, None),
[utc])
self.assertEqual(inferTimezones([[2015, 7, 4, 17, 45, 15, 0],
[2015, 7, 4, 17, 56, 43, 1]],
sessionStart, None),
[utc, utc])
def testInOpenSessionTimepointsGetSameTimezoneAsStart(self):
self.assertEqual(
inferTimezones([[2015, 7, 4, 17, 45, 15, 0]], sessionStart, None),
[utc])
self.assertEqual(
inferTimezones(
[[2015, 7, 4, 17, 45, 15, 0], [2015, 7, 4, 17, 56, 43, 1]],
sessionStart, None), [utc, utc])
def testInSessionTimepointsGetSameTimezoneAsBothStartAndEnd(self):
self.assertEqual(
inferTimezones([[2015, 7, 4, 17, 45, 15, 0]], sessionStart,
sessionEnd), [utc])
self.assertEqual(
inferTimezones(
[[2015, 7, 4, 17, 45, 15, 0], [2015, 7, 4, 17, 56, 43, 1]],
sessionStart, sessionEnd), [utc, utc])
def testInSessionTimepointsGetSameTimezoneAsBothStartAndEnd(self):
self.assertEqual(inferTimezones([[2015, 7, 4, 17, 45, 15, 0]],
sessionStart, sessionEnd),
[utc])
self.assertEqual(inferTimezones([[2015, 7, 4, 17, 45, 15, 0],
[2015, 7, 4, 17, 56, 43, 1]],
sessionStart, sessionEnd),
[utc, utc])
def testDetectionOfChangeToDST(self):
timepointsUTC, timezonesUTC = makeTestCases(sessionStart, timeChange, minute)
timepointsDST, timezonesDST = makeTestCases(timeChange.astimezone(utcDST),
sessionEnd.astimezone(utcDST),
minute)
inferred = inferTimezones(timepointsUTC + timepointsDST, sessionStart, sessionEnd.astimezone(utcDST))
self.assertEqual(inferred, timezonesUTC + timezonesDST)
self.assertEqual(inferTimezones(timepointsUTC, sessionStart, sessionEnd.astimezone(utcDST)),
timezonesUTC)
self.assertEqual(inferTimezones(timepointsDST, sessionStart, sessionEnd.astimezone(utcDST)),
timezonesDST)
def testAmbigousChangeFromDST(self):
with self.assertRaises(TimezonesInferrer.AmbigousTimezoneChangeError):
timepoints = dateRange(likeDST(sessionStart), sessionEnd, minute)
inferTimezones(timepoints, sessionStart.astimezone(utcDST),
sessionEnd)
with self.assertRaises(TimezonesInferrer.AmbigousTimezoneChangeError):
timepoints = dateRange(sessionStart - 121 * minute, sessionEnd,
minute)
inferTimezones(timepoints, sessionStart.astimezone(utcDST),
sessionEnd)
with self.assertRaises(TimezonesInferrer.AmbigousTimezoneChangeError):
timepoints = dateRange(likeDST(sessionStart),
sessionEnd + 120 * minute, minute)
inferTimezones(timepoints, sessionStart.astimezone(utcDST),
sessionEnd)
with self.assertRaises(TimezonesInferrer.AmbigousTimezoneChangeError):
start = likeDST(sessionStart)
timepoints = dateRange(start, start + 90*minute, minute) +\
dateRange(start + 40*minute, start + 110*minute, minute) +\
dateRange(start + 60*minute, sessionEnd, minute)
inferTimezones(timepoints, sessionStart.astimezone(utcDST),
sessionEnd)
def testDetectionOfChangeToDST(self):
timepointsUTC, timezonesUTC = makeTestCases(sessionStart, timeChange,
minute)
timepointsDST, timezonesDST = makeTestCases(
timeChange.astimezone(utcDST), sessionEnd.astimezone(utcDST),
minute)
inferred = inferTimezones(timepointsUTC + timepointsDST, sessionStart,
sessionEnd.astimezone(utcDST))
self.assertEqual(inferred, timezonesUTC + timezonesDST)
self.assertEqual(
inferTimezones(timepointsUTC, sessionStart,
sessionEnd.astimezone(utcDST)), timezonesUTC)
self.assertEqual(
inferTimezones(timepointsDST, sessionStart,
sessionEnd.astimezone(utcDST)), timezonesDST)
def testAmbigousChangeFromDST(self):
with self.assertRaises(TimezonesInferrer.AmbigousTimezoneChangeError):
timepoints = dateRange(likeDST(sessionStart), sessionEnd, minute)
inferTimezones(timepoints, sessionStart.astimezone(utcDST), sessionEnd)
with self.assertRaises(TimezonesInferrer.AmbigousTimezoneChangeError):
timepoints = dateRange(sessionStart - 121 * minute, sessionEnd, minute)
inferTimezones(timepoints, sessionStart.astimezone(utcDST), sessionEnd)
with self.assertRaises(TimezonesInferrer.AmbigousTimezoneChangeError):
timepoints = dateRange(likeDST(sessionStart),
sessionEnd + 120 * minute, minute)
inferTimezones(timepoints, sessionStart.astimezone(utcDST), sessionEnd)
with self.assertRaises(TimezonesInferrer.AmbigousTimezoneChangeError):
start = likeDST(sessionStart)
timepoints = dateRange(start, start + 90*minute, minute) +\
dateRange(start + 40*minute, start + 110*minute, minute) +\
dateRange(start + 60*minute, sessionEnd, minute)
inferTimezones(timepoints, sessionStart.astimezone(utcDST), sessionEnd)
def testNoChangeToDST(self):
timepoints = dateRange(sessionStart, likeDST(sessionEnd), minute)
with self.assertRaises(TimezonesInferrer.NoIntervalsBigEnoughForTimeAdvance):
inferTimezones(timepoints, sessionStart, sessionEnd.astimezone(utcDST))
def testAmbigousChangeToDST(self):
timepoints = dateRange(sessionStart + 61 * minute, sessionStart + 65 * minute, minute) +\
dateRange(sessionStart + 126 * minute, sessionStart + 130 * minute, minute)
with self.assertRaises(TimezonesInferrer.TooManyIntervalsBigEnoughForTimeAdvance):
inferTimezones(timepoints, sessionStart, sessionEnd.astimezone(utcDST))
def testEmptyTimepointsStayEmpty(self):
self.assertEqual(inferTimezones([], sessionStart), [])
self.assertEqual(inferTimezones([], sessionStart, sessionEnd), [])
self.assertEqual(
inferTimezones([], sessionStart, sessionEnd.astimezone(utcDST)),
[])
def testNoChangeToDST(self):
timepoints = dateRange(sessionStart, likeDST(sessionEnd), minute)
with self.assertRaises(
TimezonesInferrer.NoIntervalsBigEnoughForTimeAdvance):
inferTimezones(timepoints, sessionStart,
sessionEnd.astimezone(utcDST))