我们从Python开源项目中，提取了以下46个代码示例，用于说明如何使用datetime.datetime.MAXYEAR。
def test_bad_constructor_arguments(self): # bad years self.theclass(MINYEAR, 1, 1) # no exception self.theclass(MAXYEAR, 1, 1) # no exception self.assertRaises(ValueError, self.theclass, MINYEAR-1, 1, 1) self.assertRaises(ValueError, self.theclass, MAXYEAR+1, 1, 1) # bad months self.theclass(2000, 1, 1) # no exception self.theclass(2000, 12, 1) # no exception self.assertRaises(ValueError, self.theclass, 2000, 0, 1) self.assertRaises(ValueError, self.theclass, 2000, 13, 1) # bad days self.theclass(2000, 2, 29) # no exception self.theclass(2004, 2, 29) # no exception self.theclass(2400, 2, 29) # no exception self.assertRaises(ValueError, self.theclass, 2000, 2, 30) self.assertRaises(ValueError, self.theclass, 2001, 2, 29) self.assertRaises(ValueError, self.theclass, 2100, 2, 29) self.assertRaises(ValueError, self.theclass, 1900, 2, 29) self.assertRaises(ValueError, self.theclass, 2000, 1, 0) self.assertRaises(ValueError, self.theclass, 2000, 1, 32)
def test_tz_independent_comparing(self): dt1 = self.theclass(2002, 3, 1, 9, 0, 0) dt2 = self.theclass(2002, 3, 1, 10, 0, 0) dt3 = self.theclass(2002, 3, 1, 9, 0, 0) self.assertEqual(dt1, dt3) self.assertTrue(dt2 > dt3) # Make sure comparison doesn't forget microseconds, and isn't done # via comparing a float timestamp (an IEEE double doesn't have enough # precision to span microsecond resolution across years 1 thru 9999, # so comparing via timestamp necessarily calls some distinct values # equal). dt1 = self.theclass(MAXYEAR, 12, 31, 23, 59, 59, 999998) us = timedelta(microseconds=1) dt2 = dt1 + us self.assertEqual(dt2 - dt1, us) self.assertTrue(dt1 < dt2)
def test_constants(self): datetime = datetime_module self.assertEqual(datetime.MINYEAR, 1) self.assertEqual(datetime.MAXYEAR, 9999)
def test_name_cleanup(self): if not '_Fast' in str(type(self)): return datetime = datetime_module names = set(name for name in dir(datetime) if not name.startswith('__') and not name.endswith('__')) allowed = set(['MAXYEAR', 'MINYEAR', 'date', 'datetime', 'datetime_CAPI', 'time', 'timedelta', 'timezone', 'tzinfo']) self.assertEqual(names - allowed, set([])) ############################################################################# # tzinfo tests
def test_extreme_hashes(self): # If an attempt is made to hash these via subtracting the offset # then hashing a datetime object, OverflowError results. The # Python implementation used to blow up here. t = self.theclass(1, 1, 1, tzinfo=FixedOffset(1439, "")) hash(t) t = self.theclass(MAXYEAR, 12, 31, 23, 59, 59, 999999, tzinfo=FixedOffset(-1439, "")) hash(t) # OTOH, an OOB offset should blow up. t = self.theclass(5, 5, 5, tzinfo=FixedOffset(-1440, "")) self.assertRaises(ValueError, hash, t)
def test_constants(self): import datetime self.assertEqual(datetime.MINYEAR, 1) self.assertEqual(datetime.MAXYEAR, 9999) ############################################################################# # tzinfo tests
def test_constants(self): datetime = datetime_module self.assertEqual(datetime.MINYEAR, 1) self.assertEqual(datetime.MAXYEAR, 9999) ############################################################################# # tzinfo tests
def yearlimit(limittype): import datetime if limittype == 'min': return datetime.MINYEAR elif limittype == 'max': return datetime.MAXYEAR else: raise RuntimeError('An Error Has Occured: Invalid Operation Entered (0008)') # Get The Timezone Code
def test_ordinal_conversions(self): # Check some fixed values. for y, m, d, n in [(1, 1, 1, 1), # calendar origin (1, 12, 31, 365), (2, 1, 1, 366), # first example from "Calendrical Calculations" (1945, 11, 12, 710347)]: d = self.theclass(y, m, d) self.assertEqual(n, d.toordinal()) fromord = self.theclass.fromordinal(n) self.assertEqual(d, fromord) if hasattr(fromord, "hour"): # if we're checking something fancier than a date, verify # the extra fields have been zeroed out self.assertEqual(fromord.hour, 0) self.assertEqual(fromord.minute, 0) self.assertEqual(fromord.second, 0) self.assertEqual(fromord.microsecond, 0) # Check first and last days of year spottily across the whole # range of years supported. for year in range(MINYEAR, MAXYEAR+1, 7): # Verify (year, 1, 1) -> ordinal -> y, m, d is identity. d = self.theclass(year, 1, 1) n = d.toordinal() d2 = self.theclass.fromordinal(n) self.assertEqual(d, d2) # Verify that moving back a day gets to the end of year-1. if year > 1: d = self.theclass.fromordinal(n-1) d2 = self.theclass(year-1, 12, 31) self.assertEqual(d, d2) self.assertEqual(d2.toordinal(), n-1) # Test every day in a leap-year and a non-leap year. dim = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31] for year, isleap in (2000, True), (2002, False): n = self.theclass(year, 1, 1).toordinal() for month, maxday in zip(range(1, 13), dim): if month == 2 and isleap: maxday += 1 for day in range(1, maxday+1): d = self.theclass(year, month, day) self.assertEqual(d.toordinal(), n) self.assertEqual(d, self.theclass.fromordinal(n)) n += 1
def test_ordinal_conversions(self): # Check some fixed values. for y, m, d, n in [(1, 1, 1, 1), # calendar origin (1, 12, 31, 365), (2, 1, 1, 366), # first example from "Calendrical Calculations" (1945, 11, 12, 710347)]: d = self.theclass(y, m, d) self.assertEqual(n, d.toordinal()) fromord = self.theclass.fromordinal(n) self.assertEqual(d, fromord) if hasattr(fromord, "hour"): # if we're checking something fancier than a date, verify # the extra fields have been zeroed out self.assertEqual(fromord.hour, 0) self.assertEqual(fromord.minute, 0) self.assertEqual(fromord.second, 0) self.assertEqual(fromord.microsecond, 0) # Check first and last days of year spottily across the whole # range of years supported. for year in xrange(MINYEAR, MAXYEAR+1, 7): # Verify (year, 1, 1) -> ordinal -> y, m, d is identity. d = self.theclass(year, 1, 1) n = d.toordinal() d2 = self.theclass.fromordinal(n) self.assertEqual(d, d2) # Verify that moving back a day gets to the end of year-1. if year > 1: d = self.theclass.fromordinal(n-1) d2 = self.theclass(year-1, 12, 31) self.assertEqual(d, d2) self.assertEqual(d2.toordinal(), n-1) # Test every day in a leap-year and a non-leap year. dim = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31] for year, isleap in (2000, True), (2002, False): n = self.theclass(year, 1, 1).toordinal() for month, maxday in zip(range(1, 13), dim): if month == 2 and isleap: maxday += 1 for day in range(1, maxday+1): d = self.theclass(year, month, day) self.assertEqual(d.toordinal(), n) self.assertEqual(d, self.theclass.fromordinal(n)) n += 1
def test_bad_constructor_arguments(self): # bad years self.theclass(MINYEAR, 1, 1) # no exception self.theclass(MAXYEAR, 1, 1) # no exception self.assertRaises(ValueError, self.theclass, MINYEAR-1, 1, 1) self.assertRaises(ValueError, self.theclass, MAXYEAR+1, 1, 1) # bad months self.theclass(2000, 1, 1) # no exception self.theclass(2000, 12, 1) # no exception self.assertRaises(ValueError, self.theclass, 2000, 0, 1) self.assertRaises(ValueError, self.theclass, 2000, 13, 1) # bad days self.theclass(2000, 2, 29) # no exception self.theclass(2004, 2, 29) # no exception self.theclass(2400, 2, 29) # no exception self.assertRaises(ValueError, self.theclass, 2000, 2, 30) self.assertRaises(ValueError, self.theclass, 2001, 2, 29) self.assertRaises(ValueError, self.theclass, 2100, 2, 29) self.assertRaises(ValueError, self.theclass, 1900, 2, 29) self.assertRaises(ValueError, self.theclass, 2000, 1, 0) self.assertRaises(ValueError, self.theclass, 2000, 1, 32) # bad hours self.theclass(2000, 1, 31, 0) # no exception self.theclass(2000, 1, 31, 23) # no exception self.assertRaises(ValueError, self.theclass, 2000, 1, 31, -1) self.assertRaises(ValueError, self.theclass, 2000, 1, 31, 24) # bad minutes self.theclass(2000, 1, 31, 23, 0) # no exception self.theclass(2000, 1, 31, 23, 59) # no exception self.assertRaises(ValueError, self.theclass, 2000, 1, 31, 23, -1) self.assertRaises(ValueError, self.theclass, 2000, 1, 31, 23, 60) # bad seconds self.theclass(2000, 1, 31, 23, 59, 0) # no exception self.theclass(2000, 1, 31, 23, 59, 59) # no exception self.assertRaises(ValueError, self.theclass, 2000, 1, 31, 23, 59, -1) self.assertRaises(ValueError, self.theclass, 2000, 1, 31, 23, 59, 60) # bad microseconds self.theclass(2000, 1, 31, 23, 59, 59, 0) # no exception self.theclass(2000, 1, 31, 23, 59, 59, 999999) # no exception self.assertRaises(ValueError, self.theclass, 2000, 1, 31, 23, 59, 59, -1) self.assertRaises(ValueError, self.theclass, 2000, 1, 31, 23, 59, 59, 1000000)
def test_tz_aware_arithmetic(self): import random now = self.theclass.now() tz55 = FixedOffset(-330, "west 5:30") timeaware = now.time().replace(tzinfo=tz55) nowaware = self.theclass.combine(now.date(), timeaware) self.assertIs(nowaware.tzinfo, tz55) self.assertEqual(nowaware.timetz(), timeaware) # Can't mix aware and non-aware. self.assertRaises(TypeError, lambda: now - nowaware) self.assertRaises(TypeError, lambda: nowaware - now) # And adding datetime's doesn't make sense, aware or not. self.assertRaises(TypeError, lambda: now + nowaware) self.assertRaises(TypeError, lambda: nowaware + now) self.assertRaises(TypeError, lambda: nowaware + nowaware) # Subtracting should yield 0. self.assertEqual(now - now, timedelta(0)) self.assertEqual(nowaware - nowaware, timedelta(0)) # Adding a delta should preserve tzinfo. delta = timedelta(weeks=1, minutes=12, microseconds=5678) nowawareplus = nowaware + delta self.assertIs(nowaware.tzinfo, tz55) nowawareplus2 = delta + nowaware self.assertIs(nowawareplus2.tzinfo, tz55) self.assertEqual(nowawareplus, nowawareplus2) # that - delta should be what we started with, and that - what we # started with should be delta. diff = nowawareplus - delta self.assertIs(diff.tzinfo, tz55) self.assertEqual(nowaware, diff) self.assertRaises(TypeError, lambda: delta - nowawareplus) self.assertEqual(nowawareplus - nowaware, delta) # Make up a random timezone. tzr = FixedOffset(random.randrange(-1439, 1440), "randomtimezone") # Attach it to nowawareplus. nowawareplus = nowawareplus.replace(tzinfo=tzr) self.assertIs(nowawareplus.tzinfo, tzr) # Make sure the difference takes the timezone adjustments into account. got = nowaware - nowawareplus # Expected: (nowaware base - nowaware offset) - # (nowawareplus base - nowawareplus offset) = # (nowaware base - nowawareplus base) + # (nowawareplus offset - nowaware offset) = # -delta + nowawareplus offset - nowaware offset expected = nowawareplus.utcoffset() - nowaware.utcoffset() - delta self.assertEqual(got, expected) # Try max possible difference. min = self.theclass(1, 1, 1, tzinfo=FixedOffset(1439, "min")) max = self.theclass(MAXYEAR, 12, 31, 23, 59, 59, 999999, tzinfo=FixedOffset(-1439, "max")) maxdiff = max - min self.assertEqual(maxdiff, self.theclass.max - self.theclass.min + timedelta(minutes=2*1439))
def test_tz_aware_arithmetic(self): import random now = self.theclass.now() tz55 = FixedOffset(-330, "west 5:30") timeaware = now.time().replace(tzinfo=tz55) nowaware = self.theclass.combine(now.date(), timeaware) self.assertTrue(nowaware.tzinfo is tz55) self.assertEqual(nowaware.timetz(), timeaware) # Can't mix aware and non-aware. self.assertRaises(TypeError, lambda: now - nowaware) self.assertRaises(TypeError, lambda: nowaware - now) # And adding datetime's doesn't make sense, aware or not. self.assertRaises(TypeError, lambda: now + nowaware) self.assertRaises(TypeError, lambda: nowaware + now) self.assertRaises(TypeError, lambda: nowaware + nowaware) # Subtracting should yield 0. self.assertEqual(now - now, timedelta(0)) self.assertEqual(nowaware - nowaware, timedelta(0)) # Adding a delta should preserve tzinfo. delta = timedelta(weeks=1, minutes=12, microseconds=5678) nowawareplus = nowaware + delta self.assertTrue(nowaware.tzinfo is tz55) nowawareplus2 = delta + nowaware self.assertTrue(nowawareplus2.tzinfo is tz55) self.assertEqual(nowawareplus, nowawareplus2) # that - delta should be what we started with, and that - what we # started with should be delta. diff = nowawareplus - delta self.assertTrue(diff.tzinfo is tz55) self.assertEqual(nowaware, diff) self.assertRaises(TypeError, lambda: delta - nowawareplus) self.assertEqual(nowawareplus - nowaware, delta) # Make up a random timezone. tzr = FixedOffset(random.randrange(-1439, 1440), "randomtimezone") # Attach it to nowawareplus. nowawareplus = nowawareplus.replace(tzinfo=tzr) self.assertTrue(nowawareplus.tzinfo is tzr) # Make sure the difference takes the timezone adjustments into account. got = nowaware - nowawareplus # Expected: (nowaware base - nowaware offset) - # (nowawareplus base - nowawareplus offset) = # (nowaware base - nowawareplus base) + # (nowawareplus offset - nowaware offset) = # -delta + nowawareplus offset - nowaware offset expected = nowawareplus.utcoffset() - nowaware.utcoffset() - delta self.assertEqual(got, expected) # Try max possible difference. min = self.theclass(1, 1, 1, tzinfo=FixedOffset(1439, "min")) max = self.theclass(MAXYEAR, 12, 31, 23, 59, 59, 999999, tzinfo=FixedOffset(-1439, "max")) maxdiff = max - min self.assertEqual(maxdiff, self.theclass.max - self.theclass.min + timedelta(minutes=2*1439))
