def testIsTimeStampOlderThanSevenDays(self):
DAYS_BEFORE = -7
localTimeZone = 'Europe/Zurich'
dateBefore = arrow.utcnow().shift(days=DAYS_BEFORE).to(localTimeZone)
self.assertFalse(
DateTimeUtil.isTimeStampOlderThan(dateBefore.timestamp(),
localTimeZone, abs(DAYS_BEFORE)))
def testIsTimeStampOlderThanSevenDaysMinusOneSecondAgainsUTCTimwe(self):
DAYS_BEFORE = -7
SECOND_AFTER = 1
localTimeZone = None
dateBefore = arrow.utcnow().shift(
days=DAYS_BEFORE, seconds=SECOND_AFTER).to('Europe/Zurich')
self.assertFalse(
DateTimeUtil.isTimeStampOlderThan(dateBefore.timestamp(),
localTimeZone, abs(DAYS_BEFORE)))
def testIsTimeStampOlderThanSevenDaysPlusOneSecond(self):
DAYS_BEFORE = -7
SECOND_BEFORE = -1
localTimeZone = 'Europe/Zurich'
dateBefore = arrow.utcnow().shift(
days=DAYS_BEFORE, seconds=SECOND_BEFORE).to('Europe/Zurich')
self.assertTrue(
DateTimeUtil.isTimeStampOlderThan(dateBefore.timestamp(),
localTimeZone, abs(DAYS_BEFORE)))
def getHistoricalPriceAtUTCTimeStamp(self, crypto, unit,
timeStampLocalForHistoMinute, localTz,
timeStampUTCNoHHMMForHistoDay,
exchange):
'''
Why do we pass two different time stamp to the method ?
When requesting a minute price the time stamp obtained
from a local arrow datetime object is used. If we
request a minute price for 15:18 Zurich time (+00.02)
time, the minute price returned is the one at UTC 13:18.
Asking the same price from Mumbay would require to
ask the price for 20:18 (+00.05).
Now, when asking an histo day price, the returned price
is a close price. But crypto trade 24 H a day. The "close"
price time stamp must not be dependant from the location
from which the request is sent. Instead, the "close" price
is the one at the passed date with hour and minute set to 0.
This date is not a localiszd date, but a UTC localization
independent date.
When you go on the Cryptocompare site and you search for
historical prices, the close price for a given date is
the same whatever the location of the user is !
:seqdiag_note Obtainins a minute price if request date < 7 days from now, else a day close price.
:seqdiag_return ResultData
'''
resultData = ResultData()
resultData.setValue(ResultData.RESULT_KEY_CRYPTO, crypto)
resultData.setValue(ResultData.RESULT_KEY_UNIT, unit)
resultData.setValue(ResultData.RESULT_KEY_EXCHANGE, exchange)
if DateTimeUtil.isTimeStampOlderThan(
timeStampLocalForHistoMinute,
localTz,
dayNumberInt=MINUTE_PRICE_DAY_NUMBER_LIMIT):
return self._getHistoDayPriceAtUTCTimeStamp(
crypto, unit, timeStampUTCNoHHMMForHistoDay, exchange,
resultData)
else:
return self._getHistoMinutePriceAtUTCTimeStamp(
crypto, unit, timeStampLocalForHistoMinute, exchange,
resultData)
