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# -*- coding: utf-8 -*-
"""
Test time delta
"""
import sys
import time
import datetime
import parsedatetime as pdt
if sys.version_info < (2, 7):
import unittest2 as unittest
else:
import unittest
# added to support Python 2.6 which does not have total_seconds() method for timedelta
def total_seconds(timedelta):
return (timedelta.microseconds + 0.0 +
(timedelta.seconds + timedelta.days * 24 * 3600) * 10 ** 6) / 10 ** 6
class test(unittest.TestCase):
def setUp(self):
self.cal = pdt.Calendar(version=pdt.VERSION_CONTEXT_STYLE)
self.source = (2017, 1, 1, 7, 1, 2, 6, 1, 1)
def assertDelta(self, ts, years=None, months=None, **deltakw):
ts = ts[0]
source = self.source
delta = datetime.timedelta(**deltakw)
calc_delta = (datetime.datetime(*ts[:6]) -
datetime.datetime(*source[:6]))
delta -= datetime.timedelta(microseconds=delta.microseconds)
if not years and not months:
self.assertEqual(delta, calc_delta)
return
if years:
delta += datetime.timedelta(days=365 * years)
if months:
delta += datetime.timedelta(days=30 * months)
diff = abs((total_seconds(calc_delta) -
total_seconds(delta)) /
total_seconds(delta))
self.assertTrue(diff < 0.05, '%s is not less than 0.05' % diff)
def testInteger(self):
self.assertDelta(
self.cal.parse('5 minutes ago', self.source), minutes=-5)
self.assertDelta(
self.cal.parse('34 hours ago', self.source), hours=-34)
self.assertDelta(
self.cal.parse('2 days ago', self.source), days=-2)
def testFloat(self):
self.assertDelta(
self.cal.parse('58.4 minutes ago', self.source), minutes=-58.4)
self.assertDelta(
self.cal.parse('1855336.424 minutes ago', self.source),
minutes=-1855336.424)
self.assertDelta(
self.cal.parse('8.3 hours ago', self.source), hours=-8.3)
self.assertDelta(
self.cal.parse('22.355 hours ago', self.source), hours=-22.355)
self.assertDelta(
self.cal.parse('7.2 days ago', self.source), days=-7.2)
self.assertDelta(
self.cal.parse('7.3 days ago', self.source), days=-7.3)
self.assertDelta(
self.cal.parse('17.7 days ago', self.source), days=-17.7)
self.assertDelta(
self.cal.parse('1.4 months ago', self.source), months=-1.4)
self.assertDelta(
self.cal.parse('4.8 months ago', self.source), months=-4.8)
self.assertDelta(
self.cal.parse('5.1 months ago', self.source), months=-5.1)
self.assertDelta(
self.cal.parse('5.11553 years ago', self.source), years=-5.11553)
if __name__ == "__main__":
unittest.main()
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