"""Test date/time type. | |
See http://www.zope.org/Members/fdrake/DateTimeWiki/TestCases | |
""" | |
from __future__ import division | |
import sys | |
import pickle | |
import cPickle | |
import unittest | |
from test import test_support | |
from datetime import MINYEAR, MAXYEAR | |
from datetime import timedelta | |
from datetime import tzinfo | |
from datetime import time | |
from datetime import date, datetime | |
pickle_choices = [(pickler, unpickler, proto) | |
for pickler in pickle, cPickle | |
for unpickler in pickle, cPickle | |
for proto in range(3)] | |
assert len(pickle_choices) == 2*2*3 | |
# An arbitrary collection of objects of non-datetime types, for testing | |
# mixed-type comparisons. | |
OTHERSTUFF = (10, 10L, 34.5, "abc", {}, [], ()) | |
############################################################################# | |
# module tests | |
class TestModule(unittest.TestCase): | |
def test_constants(self): | |
import datetime | |
self.assertEqual(datetime.MINYEAR, 1) | |
self.assertEqual(datetime.MAXYEAR, 9999) | |
############################################################################# | |
# tzinfo tests | |
class FixedOffset(tzinfo): | |
def __init__(self, offset, name, dstoffset=42): | |
if isinstance(offset, int): | |
offset = timedelta(minutes=offset) | |
if isinstance(dstoffset, int): | |
dstoffset = timedelta(minutes=dstoffset) | |
self.__offset = offset | |
self.__name = name | |
self.__dstoffset = dstoffset | |
def __repr__(self): | |
return self.__name.lower() | |
def utcoffset(self, dt): | |
return self.__offset | |
def tzname(self, dt): | |
return self.__name | |
def dst(self, dt): | |
return self.__dstoffset | |
class PicklableFixedOffset(FixedOffset): | |
def __init__(self, offset=None, name=None, dstoffset=None): | |
FixedOffset.__init__(self, offset, name, dstoffset) | |
class TestTZInfo(unittest.TestCase): | |
def test_non_abstractness(self): | |
# In order to allow subclasses to get pickled, the C implementation | |
# wasn't able to get away with having __init__ raise | |
# NotImplementedError. | |
useless = tzinfo() | |
dt = datetime.max | |
self.assertRaises(NotImplementedError, useless.tzname, dt) | |
self.assertRaises(NotImplementedError, useless.utcoffset, dt) | |
self.assertRaises(NotImplementedError, useless.dst, dt) | |
def test_subclass_must_override(self): | |
class NotEnough(tzinfo): | |
def __init__(self, offset, name): | |
self.__offset = offset | |
self.__name = name | |
self.assertTrue(issubclass(NotEnough, tzinfo)) | |
ne = NotEnough(3, "NotByALongShot") | |
self.assertIsInstance(ne, tzinfo) | |
dt = datetime.now() | |
self.assertRaises(NotImplementedError, ne.tzname, dt) | |
self.assertRaises(NotImplementedError, ne.utcoffset, dt) | |
self.assertRaises(NotImplementedError, ne.dst, dt) | |
def test_normal(self): | |
fo = FixedOffset(3, "Three") | |
self.assertIsInstance(fo, tzinfo) | |
for dt in datetime.now(), None: | |
self.assertEqual(fo.utcoffset(dt), timedelta(minutes=3)) | |
self.assertEqual(fo.tzname(dt), "Three") | |
self.assertEqual(fo.dst(dt), timedelta(minutes=42)) | |
def test_pickling_base(self): | |
# There's no point to pickling tzinfo objects on their own (they | |
# carry no data), but they need to be picklable anyway else | |
# concrete subclasses can't be pickled. | |
orig = tzinfo.__new__(tzinfo) | |
self.assertTrue(type(orig) is tzinfo) | |
for pickler, unpickler, proto in pickle_choices: | |
green = pickler.dumps(orig, proto) | |
derived = unpickler.loads(green) | |
self.assertTrue(type(derived) is tzinfo) | |
def test_pickling_subclass(self): | |
# Make sure we can pickle/unpickle an instance of a subclass. | |
offset = timedelta(minutes=-300) | |
orig = PicklableFixedOffset(offset, 'cookie') | |
self.assertIsInstance(orig, tzinfo) | |
self.assertTrue(type(orig) is PicklableFixedOffset) | |
self.assertEqual(orig.utcoffset(None), offset) | |
self.assertEqual(orig.tzname(None), 'cookie') | |
for pickler, unpickler, proto in pickle_choices: | |
green = pickler.dumps(orig, proto) | |
derived = unpickler.loads(green) | |
self.assertIsInstance(derived, tzinfo) | |
self.assertTrue(type(derived) is PicklableFixedOffset) | |
self.assertEqual(derived.utcoffset(None), offset) | |
self.assertEqual(derived.tzname(None), 'cookie') | |
############################################################################# | |
# Base clase for testing a particular aspect of timedelta, time, date and | |
# datetime comparisons. | |
class HarmlessMixedComparison: | |
# Test that __eq__ and __ne__ don't complain for mixed-type comparisons. | |
# Subclasses must define 'theclass', and theclass(1, 1, 1) must be a | |
# legit constructor. | |
def test_harmless_mixed_comparison(self): | |
me = self.theclass(1, 1, 1) | |
self.assertFalse(me == ()) | |
self.assertTrue(me != ()) | |
self.assertFalse(() == me) | |
self.assertTrue(() != me) | |
self.assertIn(me, [1, 20L, [], me]) | |
self.assertIn([], [me, 1, 20L, []]) | |
def test_harmful_mixed_comparison(self): | |
me = self.theclass(1, 1, 1) | |
self.assertRaises(TypeError, lambda: me < ()) | |
self.assertRaises(TypeError, lambda: me <= ()) | |
self.assertRaises(TypeError, lambda: me > ()) | |
self.assertRaises(TypeError, lambda: me >= ()) | |
self.assertRaises(TypeError, lambda: () < me) | |
self.assertRaises(TypeError, lambda: () <= me) | |
self.assertRaises(TypeError, lambda: () > me) | |
self.assertRaises(TypeError, lambda: () >= me) | |
self.assertRaises(TypeError, cmp, (), me) | |
self.assertRaises(TypeError, cmp, me, ()) | |
############################################################################# | |
# timedelta tests | |
class TestTimeDelta(HarmlessMixedComparison, unittest.TestCase): | |
theclass = timedelta | |
def test_constructor(self): | |
eq = self.assertEqual | |
td = timedelta | |
# Check keyword args to constructor | |
eq(td(), td(weeks=0, days=0, hours=0, minutes=0, seconds=0, | |
milliseconds=0, microseconds=0)) | |
eq(td(1), td(days=1)) | |
eq(td(0, 1), td(seconds=1)) | |
eq(td(0, 0, 1), td(microseconds=1)) | |
eq(td(weeks=1), td(days=7)) | |
eq(td(days=1), td(hours=24)) | |
eq(td(hours=1), td(minutes=60)) | |
eq(td(minutes=1), td(seconds=60)) | |
eq(td(seconds=1), td(milliseconds=1000)) | |
eq(td(milliseconds=1), td(microseconds=1000)) | |
# Check float args to constructor | |
eq(td(weeks=1.0/7), td(days=1)) | |
eq(td(days=1.0/24), td(hours=1)) | |
eq(td(hours=1.0/60), td(minutes=1)) | |
eq(td(minutes=1.0/60), td(seconds=1)) | |
eq(td(seconds=0.001), td(milliseconds=1)) | |
eq(td(milliseconds=0.001), td(microseconds=1)) | |
def test_computations(self): | |
eq = self.assertEqual | |
td = timedelta | |
a = td(7) # One week | |
b = td(0, 60) # One minute | |
c = td(0, 0, 1000) # One millisecond | |
eq(a+b+c, td(7, 60, 1000)) | |
eq(a-b, td(6, 24*3600 - 60)) | |
eq(-a, td(-7)) | |
eq(+a, td(7)) | |
eq(-b, td(-1, 24*3600 - 60)) | |
eq(-c, td(-1, 24*3600 - 1, 999000)) | |
eq(abs(a), a) | |
eq(abs(-a), a) | |
eq(td(6, 24*3600), a) | |
eq(td(0, 0, 60*1000000), b) | |
eq(a*10, td(70)) | |
eq(a*10, 10*a) | |
eq(a*10L, 10*a) | |
eq(b*10, td(0, 600)) | |
eq(10*b, td(0, 600)) | |
eq(b*10L, td(0, 600)) | |
eq(c*10, td(0, 0, 10000)) | |
eq(10*c, td(0, 0, 10000)) | |
eq(c*10L, td(0, 0, 10000)) | |
eq(a*-1, -a) | |
eq(b*-2, -b-b) | |
eq(c*-2, -c+-c) | |
eq(b*(60*24), (b*60)*24) | |
eq(b*(60*24), (60*b)*24) | |
eq(c*1000, td(0, 1)) | |
eq(1000*c, td(0, 1)) | |
eq(a//7, td(1)) | |
eq(b//10, td(0, 6)) | |
eq(c//1000, td(0, 0, 1)) | |
eq(a//10, td(0, 7*24*360)) | |
eq(a//3600000, td(0, 0, 7*24*1000)) | |
# Issue #11576 | |
eq(td(999999999, 86399, 999999) - td(999999999, 86399, 999998), | |
td(0, 0, 1)) | |
eq(td(999999999, 1, 1) - td(999999999, 1, 0), | |
td(0, 0, 1)) | |
def test_disallowed_computations(self): | |
a = timedelta(42) | |
# Add/sub ints, longs, floats should be illegal | |
for i in 1, 1L, 1.0: | |
self.assertRaises(TypeError, lambda: a+i) | |
self.assertRaises(TypeError, lambda: a-i) | |
self.assertRaises(TypeError, lambda: i+a) | |
self.assertRaises(TypeError, lambda: i-a) | |
# Mul/div by float isn't supported. | |
x = 2.3 | |
self.assertRaises(TypeError, lambda: a*x) | |
self.assertRaises(TypeError, lambda: x*a) | |
self.assertRaises(TypeError, lambda: a/x) | |
self.assertRaises(TypeError, lambda: x/a) | |
self.assertRaises(TypeError, lambda: a // x) | |
self.assertRaises(TypeError, lambda: x // a) | |
# Division of int by timedelta doesn't make sense. | |
# Division by zero doesn't make sense. | |
for zero in 0, 0L: | |
self.assertRaises(TypeError, lambda: zero // a) | |
self.assertRaises(ZeroDivisionError, lambda: a // zero) | |
def test_basic_attributes(self): | |
days, seconds, us = 1, 7, 31 | |
td = timedelta(days, seconds, us) | |
self.assertEqual(td.days, days) | |
self.assertEqual(td.seconds, seconds) | |
self.assertEqual(td.microseconds, us) | |
def test_total_seconds(self): | |
td = timedelta(days=365) | |
self.assertEqual(td.total_seconds(), 31536000.0) | |
for total_seconds in [123456.789012, -123456.789012, 0.123456, 0, 1e6]: | |
td = timedelta(seconds=total_seconds) | |
self.assertEqual(td.total_seconds(), total_seconds) | |
# Issue8644: Test that td.total_seconds() has the same | |
# accuracy as td / timedelta(seconds=1). | |
for ms in [-1, -2, -123]: | |
td = timedelta(microseconds=ms) | |
self.assertEqual(td.total_seconds(), | |
((24*3600*td.days + td.seconds)*10**6 | |
+ td.microseconds)/10**6) | |
def test_carries(self): | |
t1 = timedelta(days=100, | |
weeks=-7, | |
hours=-24*(100-49), | |
minutes=-3, | |
seconds=12, | |
microseconds=(3*60 - 12) * 1e6 + 1) | |
t2 = timedelta(microseconds=1) | |
self.assertEqual(t1, t2) | |
def test_hash_equality(self): | |
t1 = timedelta(days=100, | |
weeks=-7, | |
hours=-24*(100-49), | |
minutes=-3, | |
seconds=12, | |
microseconds=(3*60 - 12) * 1000000) | |
t2 = timedelta() | |
self.assertEqual(hash(t1), hash(t2)) | |
t1 += timedelta(weeks=7) | |
t2 += timedelta(days=7*7) | |
self.assertEqual(t1, t2) | |
self.assertEqual(hash(t1), hash(t2)) | |
d = {t1: 1} | |
d[t2] = 2 | |
self.assertEqual(len(d), 1) | |
self.assertEqual(d[t1], 2) | |
def test_pickling(self): | |
args = 12, 34, 56 | |
orig = timedelta(*args) | |
for pickler, unpickler, proto in pickle_choices: | |
green = pickler.dumps(orig, proto) | |
derived = unpickler.loads(green) | |
self.assertEqual(orig, derived) | |
def test_compare(self): | |
t1 = timedelta(2, 3, 4) | |
t2 = timedelta(2, 3, 4) | |
self.assertTrue(t1 == t2) | |
self.assertTrue(t1 <= t2) | |
self.assertTrue(t1 >= t2) | |
self.assertTrue(not t1 != t2) | |
self.assertTrue(not t1 < t2) | |
self.assertTrue(not t1 > t2) | |
self.assertEqual(cmp(t1, t2), 0) | |
self.assertEqual(cmp(t2, t1), 0) | |
for args in (3, 3, 3), (2, 4, 4), (2, 3, 5): | |
t2 = timedelta(*args) # this is larger than t1 | |
self.assertTrue(t1 < t2) | |
self.assertTrue(t2 > t1) | |
self.assertTrue(t1 <= t2) | |
self.assertTrue(t2 >= t1) | |
self.assertTrue(t1 != t2) | |
self.assertTrue(t2 != t1) | |
self.assertTrue(not t1 == t2) | |
self.assertTrue(not t2 == t1) | |
self.assertTrue(not t1 > t2) | |
self.assertTrue(not t2 < t1) | |
self.assertTrue(not t1 >= t2) | |
self.assertTrue(not t2 <= t1) | |
self.assertEqual(cmp(t1, t2), -1) | |
self.assertEqual(cmp(t2, t1), 1) | |
for badarg in OTHERSTUFF: | |
self.assertEqual(t1 == badarg, False) | |
self.assertEqual(t1 != badarg, True) | |
self.assertEqual(badarg == t1, False) | |
self.assertEqual(badarg != t1, True) | |
self.assertRaises(TypeError, lambda: t1 <= badarg) | |
self.assertRaises(TypeError, lambda: t1 < badarg) | |
self.assertRaises(TypeError, lambda: t1 > badarg) | |
self.assertRaises(TypeError, lambda: t1 >= badarg) | |
self.assertRaises(TypeError, lambda: badarg <= t1) | |
self.assertRaises(TypeError, lambda: badarg < t1) | |
self.assertRaises(TypeError, lambda: badarg > t1) | |
self.assertRaises(TypeError, lambda: badarg >= t1) | |
def test_str(self): | |
td = timedelta | |
eq = self.assertEqual | |
eq(str(td(1)), "1 day, 0:00:00") | |
eq(str(td(-1)), "-1 day, 0:00:00") | |
eq(str(td(2)), "2 days, 0:00:00") | |
eq(str(td(-2)), "-2 days, 0:00:00") | |
eq(str(td(hours=12, minutes=58, seconds=59)), "12:58:59") | |
eq(str(td(hours=2, minutes=3, seconds=4)), "2:03:04") | |
eq(str(td(weeks=-30, hours=23, minutes=12, seconds=34)), | |
"-210 days, 23:12:34") | |
eq(str(td(milliseconds=1)), "0:00:00.001000") | |
eq(str(td(microseconds=3)), "0:00:00.000003") | |
eq(str(td(days=999999999, hours=23, minutes=59, seconds=59, | |
microseconds=999999)), | |
"999999999 days, 23:59:59.999999") | |
def test_roundtrip(self): | |
for td in (timedelta(days=999999999, hours=23, minutes=59, | |
seconds=59, microseconds=999999), | |
timedelta(days=-999999999), | |
timedelta(days=1, seconds=2, microseconds=3)): | |
# Verify td -> string -> td identity. | |
s = repr(td) | |
self.assertTrue(s.startswith('datetime.')) | |
s = s[9:] | |
td2 = eval(s) | |
self.assertEqual(td, td2) | |
# Verify identity via reconstructing from pieces. | |
td2 = timedelta(td.days, td.seconds, td.microseconds) | |
self.assertEqual(td, td2) | |
def test_resolution_info(self): | |
self.assertIsInstance(timedelta.min, timedelta) | |
self.assertIsInstance(timedelta.max, timedelta) | |
self.assertIsInstance(timedelta.resolution, timedelta) | |
self.assertTrue(timedelta.max > timedelta.min) | |
self.assertEqual(timedelta.min, timedelta(-999999999)) | |
self.assertEqual(timedelta.max, timedelta(999999999, 24*3600-1, 1e6-1)) | |
self.assertEqual(timedelta.resolution, timedelta(0, 0, 1)) | |
def test_overflow(self): | |
tiny = timedelta.resolution | |
td = timedelta.min + tiny | |
td -= tiny # no problem | |
self.assertRaises(OverflowError, td.__sub__, tiny) | |
self.assertRaises(OverflowError, td.__add__, -tiny) | |
td = timedelta.max - tiny | |
td += tiny # no problem | |
self.assertRaises(OverflowError, td.__add__, tiny) | |
self.assertRaises(OverflowError, td.__sub__, -tiny) | |
self.assertRaises(OverflowError, lambda: -timedelta.max) | |
def test_microsecond_rounding(self): | |
td = timedelta | |
eq = self.assertEqual | |
# Single-field rounding. | |
eq(td(milliseconds=0.4/1000), td(0)) # rounds to 0 | |
eq(td(milliseconds=-0.4/1000), td(0)) # rounds to 0 | |
eq(td(milliseconds=0.6/1000), td(microseconds=1)) | |
eq(td(milliseconds=-0.6/1000), td(microseconds=-1)) | |
# Rounding due to contributions from more than one field. | |
us_per_hour = 3600e6 | |
us_per_day = us_per_hour * 24 | |
eq(td(days=.4/us_per_day), td(0)) | |
eq(td(hours=.2/us_per_hour), td(0)) | |
eq(td(days=.4/us_per_day, hours=.2/us_per_hour), td(microseconds=1)) | |
eq(td(days=-.4/us_per_day), td(0)) | |
eq(td(hours=-.2/us_per_hour), td(0)) | |
eq(td(days=-.4/us_per_day, hours=-.2/us_per_hour), td(microseconds=-1)) | |
def test_massive_normalization(self): | |
td = timedelta(microseconds=-1) | |
self.assertEqual((td.days, td.seconds, td.microseconds), | |
(-1, 24*3600-1, 999999)) | |
def test_bool(self): | |
self.assertTrue(timedelta(1)) | |
self.assertTrue(timedelta(0, 1)) | |
self.assertTrue(timedelta(0, 0, 1)) | |
self.assertTrue(timedelta(microseconds=1)) | |
self.assertTrue(not timedelta(0)) | |
def test_subclass_timedelta(self): | |
class T(timedelta): | |
@staticmethod | |
def from_td(td): | |
return T(td.days, td.seconds, td.microseconds) | |
def as_hours(self): | |
sum = (self.days * 24 + | |
self.seconds / 3600.0 + | |
self.microseconds / 3600e6) | |
return round(sum) | |
t1 = T(days=1) | |
self.assertTrue(type(t1) is T) | |
self.assertEqual(t1.as_hours(), 24) | |
t2 = T(days=-1, seconds=-3600) | |
self.assertTrue(type(t2) is T) | |
self.assertEqual(t2.as_hours(), -25) | |
t3 = t1 + t2 | |
self.assertTrue(type(t3) is timedelta) | |
t4 = T.from_td(t3) | |
self.assertTrue(type(t4) is T) | |
self.assertEqual(t3.days, t4.days) | |
self.assertEqual(t3.seconds, t4.seconds) | |
self.assertEqual(t3.microseconds, t4.microseconds) | |
self.assertEqual(str(t3), str(t4)) | |
self.assertEqual(t4.as_hours(), -1) | |
############################################################################# | |
# date tests | |
class TestDateOnly(unittest.TestCase): | |
# Tests here won't pass if also run on datetime objects, so don't | |
# subclass this to test datetimes too. | |
def test_delta_non_days_ignored(self): | |
dt = date(2000, 1, 2) | |
delta = timedelta(days=1, hours=2, minutes=3, seconds=4, | |
microseconds=5) | |
days = timedelta(delta.days) | |
self.assertEqual(days, timedelta(1)) | |
dt2 = dt + delta | |
self.assertEqual(dt2, dt + days) | |
dt2 = delta + dt | |
self.assertEqual(dt2, dt + days) | |
dt2 = dt - delta | |
self.assertEqual(dt2, dt - days) | |
delta = -delta | |
days = timedelta(delta.days) | |
self.assertEqual(days, timedelta(-2)) | |
dt2 = dt + delta | |
self.assertEqual(dt2, dt + days) | |
dt2 = delta + dt | |
self.assertEqual(dt2, dt + days) | |
dt2 = dt - delta | |
self.assertEqual(dt2, dt - days) | |
class SubclassDate(date): | |
sub_var = 1 | |
class TestDate(HarmlessMixedComparison, unittest.TestCase): | |
# Tests here should pass for both dates and datetimes, except for a | |
# few tests that TestDateTime overrides. | |
theclass = date | |
def test_basic_attributes(self): | |
dt = self.theclass(2002, 3, 1) | |
self.assertEqual(dt.year, 2002) | |
self.assertEqual(dt.month, 3) | |
self.assertEqual(dt.day, 1) | |
def test_roundtrip(self): | |
for dt in (self.theclass(1, 2, 3), | |
self.theclass.today()): | |
# Verify dt -> string -> date identity. | |
s = repr(dt) | |
self.assertTrue(s.startswith('datetime.')) | |
s = s[9:] | |
dt2 = eval(s) | |
self.assertEqual(dt, dt2) | |
# Verify identity via reconstructing from pieces. | |
dt2 = self.theclass(dt.year, dt.month, dt.day) | |
self.assertEqual(dt, dt2) | |
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_extreme_ordinals(self): | |
a = self.theclass.min | |
a = self.theclass(a.year, a.month, a.day) # get rid of time parts | |
aord = a.toordinal() | |
b = a.fromordinal(aord) | |
self.assertEqual(a, b) | |
self.assertRaises(ValueError, lambda: a.fromordinal(aord - 1)) | |
b = a + timedelta(days=1) | |
self.assertEqual(b.toordinal(), aord + 1) | |
self.assertEqual(b, self.theclass.fromordinal(aord + 1)) | |
a = self.theclass.max | |
a = self.theclass(a.year, a.month, a.day) # get rid of time parts | |
aord = a.toordinal() | |
b = a.fromordinal(aord) | |
self.assertEqual(a, b) | |
self.assertRaises(ValueError, lambda: a.fromordinal(aord + 1)) | |
b = a - timedelta(days=1) | |
self.assertEqual(b.toordinal(), aord - 1) | |
self.assertEqual(b, self.theclass.fromordinal(aord - 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) | |
def test_hash_equality(self): | |
d = self.theclass(2000, 12, 31) | |
# same thing | |
e = self.theclass(2000, 12, 31) | |
self.assertEqual(d, e) | |
self.assertEqual(hash(d), hash(e)) | |
dic = {d: 1} | |
dic[e] = 2 | |
self.assertEqual(len(dic), 1) | |
self.assertEqual(dic[d], 2) | |
self.assertEqual(dic[e], 2) | |
d = self.theclass(2001, 1, 1) | |
# same thing | |
e = self.theclass(2001, 1, 1) | |
self.assertEqual(d, e) | |
self.assertEqual(hash(d), hash(e)) | |
dic = {d: 1} | |
dic[e] = 2 | |
self.assertEqual(len(dic), 1) | |
self.assertEqual(dic[d], 2) | |
self.assertEqual(dic[e], 2) | |
def test_computations(self): | |
a = self.theclass(2002, 1, 31) | |
b = self.theclass(1956, 1, 31) | |
diff = a-b | |
self.assertEqual(diff.days, 46*365 + len(range(1956, 2002, 4))) | |
self.assertEqual(diff.seconds, 0) | |
self.assertEqual(diff.microseconds, 0) | |
day = timedelta(1) | |
week = timedelta(7) | |
a = self.theclass(2002, 3, 2) | |
self.assertEqual(a + day, self.theclass(2002, 3, 3)) | |
self.assertEqual(day + a, self.theclass(2002, 3, 3)) | |
self.assertEqual(a - day, self.theclass(2002, 3, 1)) | |
self.assertEqual(-day + a, self.theclass(2002, 3, 1)) | |
self.assertEqual(a + week, self.theclass(2002, 3, 9)) | |
self.assertEqual(a - week, self.theclass(2002, 2, 23)) | |
self.assertEqual(a + 52*week, self.theclass(2003, 3, 1)) | |
self.assertEqual(a - 52*week, self.theclass(2001, 3, 3)) | |
self.assertEqual((a + week) - a, week) | |
self.assertEqual((a + day) - a, day) | |
self.assertEqual((a - week) - a, -week) | |
self.assertEqual((a - day) - a, -day) | |
self.assertEqual(a - (a + week), -week) | |
self.assertEqual(a - (a + day), -day) | |
self.assertEqual(a - (a - week), week) | |
self.assertEqual(a - (a - day), day) | |
# Add/sub ints, longs, floats should be illegal | |
for i in 1, 1L, 1.0: | |
self.assertRaises(TypeError, lambda: a+i) | |
self.assertRaises(TypeError, lambda: a-i) | |
self.assertRaises(TypeError, lambda: i+a) | |
self.assertRaises(TypeError, lambda: i-a) | |
# delta - date is senseless. | |
self.assertRaises(TypeError, lambda: day - a) | |
# mixing date and (delta or date) via * or // is senseless | |
self.assertRaises(TypeError, lambda: day * a) | |
self.assertRaises(TypeError, lambda: a * day) | |
self.assertRaises(TypeError, lambda: day // a) | |
self.assertRaises(TypeError, lambda: a // day) | |
self.assertRaises(TypeError, lambda: a * a) | |
self.assertRaises(TypeError, lambda: a // a) | |
# date + date is senseless | |
self.assertRaises(TypeError, lambda: a + a) | |
def test_overflow(self): | |
tiny = self.theclass.resolution | |
for delta in [tiny, timedelta(1), timedelta(2)]: | |
dt = self.theclass.min + delta | |
dt -= delta # no problem | |
self.assertRaises(OverflowError, dt.__sub__, delta) | |
self.assertRaises(OverflowError, dt.__add__, -delta) | |
dt = self.theclass.max - delta | |
dt += delta # no problem | |
self.assertRaises(OverflowError, dt.__add__, delta) | |
self.assertRaises(OverflowError, dt.__sub__, -delta) | |
def test_fromtimestamp(self): | |
import time | |
# Try an arbitrary fixed value. | |
year, month, day = 1999, 9, 19 | |
ts = time.mktime((year, month, day, 0, 0, 0, 0, 0, -1)) | |
d = self.theclass.fromtimestamp(ts) | |
self.assertEqual(d.year, year) | |
self.assertEqual(d.month, month) | |
self.assertEqual(d.day, day) | |
def test_insane_fromtimestamp(self): | |
# It's possible that some platform maps time_t to double, | |
# and that this test will fail there. This test should | |
# exempt such platforms (provided they return reasonable | |
# results!). | |
for insane in -1e200, 1e200: | |
self.assertRaises(ValueError, self.theclass.fromtimestamp, | |
insane) | |
def test_today(self): | |
import time | |
# We claim that today() is like fromtimestamp(time.time()), so | |
# prove it. | |
for dummy in range(3): | |
today = self.theclass.today() | |
ts = time.time() | |
todayagain = self.theclass.fromtimestamp(ts) | |
if today == todayagain: | |
break | |
# There are several legit reasons that could fail: | |
# 1. It recently became midnight, between the today() and the | |
# time() calls. | |
# 2. The platform time() has such fine resolution that we'll | |
# never get the same value twice. | |
# 3. The platform time() has poor resolution, and we just | |
# happened to call today() right before a resolution quantum | |
# boundary. | |
# 4. The system clock got fiddled between calls. | |
# In any case, wait a little while and try again. | |
time.sleep(0.1) | |
# It worked or it didn't. If it didn't, assume it's reason #2, and | |
# let the test pass if they're within half a second of each other. | |
self.assertTrue(today == todayagain or | |
abs(todayagain - today) < timedelta(seconds=0.5)) | |
def test_weekday(self): | |
for i in range(7): | |
# March 4, 2002 is a Monday | |
self.assertEqual(self.theclass(2002, 3, 4+i).weekday(), i) | |
self.assertEqual(self.theclass(2002, 3, 4+i).isoweekday(), i+1) | |
# January 2, 1956 is a Monday | |
self.assertEqual(self.theclass(1956, 1, 2+i).weekday(), i) | |
self.assertEqual(self.theclass(1956, 1, 2+i).isoweekday(), i+1) | |
def test_isocalendar(self): | |
# Check examples from | |
# http://www.phys.uu.nl/~vgent/calendar/isocalendar.htm | |
for i in range(7): | |
d = self.theclass(2003, 12, 22+i) | |
self.assertEqual(d.isocalendar(), (2003, 52, i+1)) | |
d = self.theclass(2003, 12, 29) + timedelta(i) | |
self.assertEqual(d.isocalendar(), (2004, 1, i+1)) | |
d = self.theclass(2004, 1, 5+i) | |
self.assertEqual(d.isocalendar(), (2004, 2, i+1)) | |
d = self.theclass(2009, 12, 21+i) | |
self.assertEqual(d.isocalendar(), (2009, 52, i+1)) | |
d = self.theclass(2009, 12, 28) + timedelta(i) | |
self.assertEqual(d.isocalendar(), (2009, 53, i+1)) | |
d = self.theclass(2010, 1, 4+i) | |
self.assertEqual(d.isocalendar(), (2010, 1, i+1)) | |
def test_iso_long_years(self): | |
# Calculate long ISO years and compare to table from | |
# http://www.phys.uu.nl/~vgent/calendar/isocalendar.htm | |
ISO_LONG_YEARS_TABLE = """ | |
4 32 60 88 | |
9 37 65 93 | |
15 43 71 99 | |
20 48 76 | |
26 54 82 | |
105 133 161 189 | |
111 139 167 195 | |
116 144 172 | |
122 150 178 | |
128 156 184 | |
201 229 257 285 | |
207 235 263 291 | |
212 240 268 296 | |
218 246 274 | |
224 252 280 | |
303 331 359 387 | |
308 336 364 392 | |
314 342 370 398 | |
320 348 376 | |
325 353 381 | |
""" | |
iso_long_years = map(int, ISO_LONG_YEARS_TABLE.split()) | |
iso_long_years.sort() | |
L = [] | |
for i in range(400): | |
d = self.theclass(2000+i, 12, 31) | |
d1 = self.theclass(1600+i, 12, 31) | |
self.assertEqual(d.isocalendar()[1:], d1.isocalendar()[1:]) | |
if d.isocalendar()[1] == 53: | |
L.append(i) | |
self.assertEqual(L, iso_long_years) | |
def test_isoformat(self): | |
t = self.theclass(2, 3, 2) | |
self.assertEqual(t.isoformat(), "0002-03-02") | |
def test_ctime(self): | |
t = self.theclass(2002, 3, 2) | |
self.assertEqual(t.ctime(), "Sat Mar 2 00:00:00 2002") | |
def test_strftime(self): | |
t = self.theclass(2005, 3, 2) | |
self.assertEqual(t.strftime("m:%m d:%d y:%y"), "m:03 d:02 y:05") | |
self.assertEqual(t.strftime(""), "") # SF bug #761337 | |
self.assertEqual(t.strftime('x'*1000), 'x'*1000) # SF bug #1556784 | |
self.assertRaises(TypeError, t.strftime) # needs an arg | |
self.assertRaises(TypeError, t.strftime, "one", "two") # too many args | |
self.assertRaises(TypeError, t.strftime, 42) # arg wrong type | |
# test that unicode input is allowed (issue 2782) | |
self.assertEqual(t.strftime(u"%m"), "03") | |
# A naive object replaces %z and %Z w/ empty strings. | |
self.assertEqual(t.strftime("'%z' '%Z'"), "'' ''") | |
#make sure that invalid format specifiers are handled correctly | |
#self.assertRaises(ValueError, t.strftime, "%e") | |
#self.assertRaises(ValueError, t.strftime, "%") | |
#self.assertRaises(ValueError, t.strftime, "%#") | |
#oh well, some systems just ignore those invalid ones. | |
#at least, excercise them to make sure that no crashes | |
#are generated | |
for f in ["%e", "%", "%#"]: | |
try: | |
t.strftime(f) | |
except ValueError: | |
pass | |
#check that this standard extension works | |
t.strftime("%f") | |
def test_format(self): | |
dt = self.theclass(2007, 9, 10) | |
self.assertEqual(dt.__format__(''), str(dt)) | |
# check that a derived class's __str__() gets called | |
class A(self.theclass): | |
def __str__(self): | |
return 'A' | |
a = A(2007, 9, 10) | |
self.assertEqual(a.__format__(''), 'A') | |
# check that a derived class's strftime gets called | |
class B(self.theclass): | |
def strftime(self, format_spec): | |
return 'B' | |
b = B(2007, 9, 10) | |
self.assertEqual(b.__format__(''), str(dt)) | |
for fmt in ["m:%m d:%d y:%y", | |
"m:%m d:%d y:%y H:%H M:%M S:%S", | |
"%z %Z", | |
]: | |
self.assertEqual(dt.__format__(fmt), dt.strftime(fmt)) | |
self.assertEqual(a.__format__(fmt), dt.strftime(fmt)) | |
self.assertEqual(b.__format__(fmt), 'B') | |
def test_resolution_info(self): | |
self.assertIsInstance(self.theclass.min, self.theclass) | |
self.assertIsInstance(self.theclass.max, self.theclass) | |
self.assertIsInstance(self.theclass.resolution, timedelta) | |
self.assertTrue(self.theclass.max > self.theclass.min) | |
def test_extreme_timedelta(self): | |
big = self.theclass.max - self.theclass.min | |
# 3652058 days, 23 hours, 59 minutes, 59 seconds, 999999 microseconds | |
n = (big.days*24*3600 + big.seconds)*1000000 + big.microseconds | |
# n == 315537897599999999 ~= 2**58.13 | |
justasbig = timedelta(0, 0, n) | |
self.assertEqual(big, justasbig) | |
self.assertEqual(self.theclass.min + big, self.theclass.max) | |
self.assertEqual(self.theclass.max - big, self.theclass.min) | |
def test_timetuple(self): | |
for i in range(7): | |
# January 2, 1956 is a Monday (0) | |
d = self.theclass(1956, 1, 2+i) | |
t = d.timetuple() | |
self.assertEqual(t, (1956, 1, 2+i, 0, 0, 0, i, 2+i, -1)) | |
# February 1, 1956 is a Wednesday (2) | |
d = self.theclass(1956, 2, 1+i) | |
t = d.timetuple() | |
self.assertEqual(t, (1956, 2, 1+i, 0, 0, 0, (2+i)%7, 32+i, -1)) | |
# March 1, 1956 is a Thursday (3), and is the 31+29+1 = 61st day | |
# of the year. | |
d = self.theclass(1956, 3, 1+i) | |
t = d.timetuple() | |
self.assertEqual(t, (1956, 3, 1+i, 0, 0, 0, (3+i)%7, 61+i, -1)) | |
self.assertEqual(t.tm_year, 1956) | |
self.assertEqual(t.tm_mon, 3) | |
self.assertEqual(t.tm_mday, 1+i) | |
self.assertEqual(t.tm_hour, 0) | |
self.assertEqual(t.tm_min, 0) | |
self.assertEqual(t.tm_sec, 0) | |
self.assertEqual(t.tm_wday, (3+i)%7) | |
self.assertEqual(t.tm_yday, 61+i) | |
self.assertEqual(t.tm_isdst, -1) | |
def test_pickling(self): | |
args = 6, 7, 23 | |
orig = self.theclass(*args) | |
for pickler, unpickler, proto in pickle_choices: | |
green = pickler.dumps(orig, proto) | |
derived = unpickler.loads(green) | |
self.assertEqual(orig, derived) | |
def test_compare(self): | |
t1 = self.theclass(2, 3, 4) | |
t2 = self.theclass(2, 3, 4) | |
self.assertTrue(t1 == t2) | |
self.assertTrue(t1 <= t2) | |
self.assertTrue(t1 >= t2) | |
self.assertTrue(not t1 != t2) | |
self.assertTrue(not t1 < t2) | |
self.assertTrue(not t1 > t2) | |
self.assertEqual(cmp(t1, t2), 0) | |
self.assertEqual(cmp(t2, t1), 0) | |
for args in (3, 3, 3), (2, 4, 4), (2, 3, 5): | |
t2 = self.theclass(*args) # this is larger than t1 | |
self.assertTrue(t1 < t2) | |
self.assertTrue(t2 > t1) | |
self.assertTrue(t1 <= t2) | |
self.assertTrue(t2 >= t1) | |
self.assertTrue(t1 != t2) | |
self.assertTrue(t2 != t1) | |
self.assertTrue(not t1 == t2) | |
self.assertTrue(not t2 == t1) | |
self.assertTrue(not t1 > t2) | |
self.assertTrue(not t2 < t1) | |
self.assertTrue(not t1 >= t2) | |
self.assertTrue(not t2 <= t1) | |
self.assertEqual(cmp(t1, t2), -1) | |
self.assertEqual(cmp(t2, t1), 1) | |
for badarg in OTHERSTUFF: | |
self.assertEqual(t1 == badarg, False) | |
self.assertEqual(t1 != badarg, True) | |
self.assertEqual(badarg == t1, False) | |
self.assertEqual(badarg != t1, True) | |
self.assertRaises(TypeError, lambda: t1 < badarg) | |
self.assertRaises(TypeError, lambda: t1 > badarg) | |
self.assertRaises(TypeError, lambda: t1 >= badarg) | |
self.assertRaises(TypeError, lambda: badarg <= t1) | |
self.assertRaises(TypeError, lambda: badarg < t1) | |
self.assertRaises(TypeError, lambda: badarg > t1) | |
self.assertRaises(TypeError, lambda: badarg >= t1) | |
def test_mixed_compare(self): | |
our = self.theclass(2000, 4, 5) | |
self.assertRaises(TypeError, cmp, our, 1) | |
self.assertRaises(TypeError, cmp, 1, our) | |
class AnotherDateTimeClass(object): | |
def __cmp__(self, other): | |
# Return "equal" so calling this can't be confused with | |
# compare-by-address (which never says "equal" for distinct | |
# objects). | |
return 0 | |
__hash__ = None # Silence Py3k warning | |
# This still errors, because date and datetime comparison raise | |
# TypeError instead of NotImplemented when they don't know what to | |
# do, in order to stop comparison from falling back to the default | |
# compare-by-address. | |
their = AnotherDateTimeClass() | |
self.assertRaises(TypeError, cmp, our, their) | |
# Oops: The next stab raises TypeError in the C implementation, | |
# but not in the Python implementation of datetime. The difference | |
# is due to that the Python implementation defines __cmp__ but | |
# the C implementation defines tp_richcompare. This is more pain | |
# to fix than it's worth, so commenting out the test. | |
# self.assertEqual(cmp(their, our), 0) | |
# But date and datetime comparison return NotImplemented instead if the | |
# other object has a timetuple attr. This gives the other object a | |
# chance to do the comparison. | |
class Comparable(AnotherDateTimeClass): | |
def timetuple(self): | |
return () | |
their = Comparable() | |
self.assertEqual(cmp(our, their), 0) | |
self.assertEqual(cmp(their, our), 0) | |
self.assertTrue(our == their) | |
self.assertTrue(their == our) | |
def test_bool(self): | |
# All dates are considered true. | |
self.assertTrue(self.theclass.min) | |
self.assertTrue(self.theclass.max) | |
def test_strftime_out_of_range(self): | |
# For nasty technical reasons, we can't handle years before 1900. | |
cls = self.theclass | |
self.assertEqual(cls(1900, 1, 1).strftime("%Y"), "1900") | |
for y in 1, 49, 51, 99, 100, 1000, 1899: | |
self.assertRaises(ValueError, cls(y, 1, 1).strftime, "%Y") | |
def test_replace(self): | |
cls = self.theclass | |
args = [1, 2, 3] | |
base = cls(*args) | |
self.assertEqual(base, base.replace()) | |
i = 0 | |
for name, newval in (("year", 2), | |
("month", 3), | |
("day", 4)): | |
newargs = args[:] | |
newargs[i] = newval | |
expected = cls(*newargs) | |
got = base.replace(**{name: newval}) | |
self.assertEqual(expected, got) | |
i += 1 | |
# Out of bounds. | |
base = cls(2000, 2, 29) | |
self.assertRaises(ValueError, base.replace, year=2001) | |
def test_subclass_date(self): | |
class C(self.theclass): | |
theAnswer = 42 | |
def __new__(cls, *args, **kws): | |
temp = kws.copy() | |
extra = temp.pop('extra') | |
result = self.theclass.__new__(cls, *args, **temp) | |
result.extra = extra | |
return result | |
def newmeth(self, start): | |
return start + self.year + self.month | |
args = 2003, 4, 14 | |
dt1 = self.theclass(*args) | |
dt2 = C(*args, **{'extra': 7}) | |
self.assertEqual(dt2.__class__, C) | |
self.assertEqual(dt2.theAnswer, 42) | |
self.assertEqual(dt2.extra, 7) | |
self.assertEqual(dt1.toordinal(), dt2.toordinal()) | |
self.assertEqual(dt2.newmeth(-7), dt1.year + dt1.month - 7) | |
def test_pickling_subclass_date(self): | |
args = 6, 7, 23 | |
orig = SubclassDate(*args) | |
for pickler, unpickler, proto in pickle_choices: | |
green = pickler.dumps(orig, proto) | |
derived = unpickler.loads(green) | |
self.assertEqual(orig, derived) | |
def test_backdoor_resistance(self): | |
# For fast unpickling, the constructor accepts a pickle string. | |
# This is a low-overhead backdoor. A user can (by intent or | |
# mistake) pass a string directly, which (if it's the right length) | |
# will get treated like a pickle, and bypass the normal sanity | |
# checks in the constructor. This can create insane objects. | |
# The constructor doesn't want to burn the time to validate all | |
# fields, but does check the month field. This stops, e.g., | |
# datetime.datetime('1995-03-25') from yielding an insane object. | |
base = '1995-03-25' | |
if not issubclass(self.theclass, datetime): | |
base = base[:4] | |
for month_byte in '9', chr(0), chr(13), '\xff': | |
self.assertRaises(TypeError, self.theclass, | |
base[:2] + month_byte + base[3:]) | |
for ord_byte in range(1, 13): | |
# This shouldn't blow up because of the month byte alone. If | |
# the implementation changes to do more-careful checking, it may | |
# blow up because other fields are insane. | |
self.theclass(base[:2] + chr(ord_byte) + base[3:]) | |
############################################################################# | |
# datetime tests | |
class SubclassDatetime(datetime): | |
sub_var = 1 | |
class TestDateTime(TestDate): | |
theclass = datetime | |
def test_basic_attributes(self): | |
dt = self.theclass(2002, 3, 1, 12, 0) | |
self.assertEqual(dt.year, 2002) | |
self.assertEqual(dt.month, 3) | |
self.assertEqual(dt.day, 1) | |
self.assertEqual(dt.hour, 12) | |
self.assertEqual(dt.minute, 0) | |
self.assertEqual(dt.second, 0) | |
self.assertEqual(dt.microsecond, 0) | |
def test_basic_attributes_nonzero(self): | |
# Make sure all attributes are non-zero so bugs in | |
# bit-shifting access show up. | |
dt = self.theclass(2002, 3, 1, 12, 59, 59, 8000) | |
self.assertEqual(dt.year, 2002) | |
self.assertEqual(dt.month, 3) | |
self.assertEqual(dt.day, 1) | |
self.assertEqual(dt.hour, 12) | |
self.assertEqual(dt.minute, 59) | |
self.assertEqual(dt.second, 59) | |
self.assertEqual(dt.microsecond, 8000) | |
def test_roundtrip(self): | |
for dt in (self.theclass(1, 2, 3, 4, 5, 6, 7), | |
self.theclass.now()): | |
# Verify dt -> string -> datetime identity. | |
s = repr(dt) | |
self.assertTrue(s.startswith('datetime.')) | |
s = s[9:] | |
dt2 = eval(s) | |
self.assertEqual(dt, dt2) | |
# Verify identity via reconstructing from pieces. | |
dt2 = self.theclass(dt.year, dt.month, dt.day, | |
dt.hour, dt.minute, dt.second, | |
dt.microsecond) | |
self.assertEqual(dt, dt2) | |
def test_isoformat(self): | |
t = self.theclass(2, 3, 2, 4, 5, 1, 123) | |
self.assertEqual(t.isoformat(), "0002-03-02T04:05:01.000123") | |
self.assertEqual(t.isoformat('T'), "0002-03-02T04:05:01.000123") | |
self.assertEqual(t.isoformat(' '), "0002-03-02 04:05:01.000123") | |
self.assertEqual(t.isoformat('\x00'), "0002-03-02\x0004:05:01.000123") | |
# str is ISO format with the separator forced to a blank. | |
self.assertEqual(str(t), "0002-03-02 04:05:01.000123") | |
t = self.theclass(2, 3, 2) | |
self.assertEqual(t.isoformat(), "0002-03-02T00:00:00") | |
self.assertEqual(t.isoformat('T'), "0002-03-02T00:00:00") | |
self.assertEqual(t.isoformat(' '), "0002-03-02 00:00:00") | |
# str is ISO format with the separator forced to a blank. | |
self.assertEqual(str(t), "0002-03-02 00:00:00") | |
def test_format(self): | |
dt = self.theclass(2007, 9, 10, 4, 5, 1, 123) | |
self.assertEqual(dt.__format__(''), str(dt)) | |
# check that a derived class's __str__() gets called | |
class A(self.theclass): | |
def __str__(self): | |
return 'A' | |
a = A(2007, 9, 10, 4, 5, 1, 123) | |
self.assertEqual(a.__format__(''), 'A') | |
# check that a derived class's strftime gets called | |
class B(self.theclass): | |
def strftime(self, format_spec): | |
return 'B' | |
b = B(2007, 9, 10, 4, 5, 1, 123) | |
self.assertEqual(b.__format__(''), str(dt)) | |
for fmt in ["m:%m d:%d y:%y", | |
"m:%m d:%d y:%y H:%H M:%M S:%S", | |
"%z %Z", | |
]: | |
self.assertEqual(dt.__format__(fmt), dt.strftime(fmt)) | |
self.assertEqual(a.__format__(fmt), dt.strftime(fmt)) | |
self.assertEqual(b.__format__(fmt), 'B') | |
def test_more_ctime(self): | |
# Test fields that TestDate doesn't touch. | |
import time | |
t = self.theclass(2002, 3, 2, 18, 3, 5, 123) | |
self.assertEqual(t.ctime(), "Sat Mar 2 18:03:05 2002") | |
# Oops! The next line fails on Win2K under MSVC 6, so it's commented | |
# out. The difference is that t.ctime() produces " 2" for the day, | |
# but platform ctime() produces "02" for the day. According to | |
# C99, t.ctime() is correct here. | |
# self.assertEqual(t.ctime(), time.ctime(time.mktime(t.timetuple()))) | |
# So test a case where that difference doesn't matter. | |
t = self.theclass(2002, 3, 22, 18, 3, 5, 123) | |
self.assertEqual(t.ctime(), time.ctime(time.mktime(t.timetuple()))) | |
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_strftime_with_bad_tzname_replace(self): | |
# verify ok if tzinfo.tzname().replace() returns a non-string | |
class MyTzInfo(FixedOffset): | |
def tzname(self, dt): | |
class MyStr(str): | |
def replace(self, *args): | |
return None | |
return MyStr('name') | |
t = self.theclass(2005, 3, 2, 0, 0, 0, 0, MyTzInfo(3, 'name')) | |
self.assertRaises(TypeError, t.strftime, '%Z') | |
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_hash_equality(self): | |
d = self.theclass(2000, 12, 31, 23, 30, 17) | |
e = self.theclass(2000, 12, 31, 23, 30, 17) | |
self.assertEqual(d, e) | |
self.assertEqual(hash(d), hash(e)) | |
dic = {d: 1} | |
dic[e] = 2 | |
self.assertEqual(len(dic), 1) | |
self.assertEqual(dic[d], 2) | |
self.assertEqual(dic[e], 2) | |
d = self.theclass(2001, 1, 1, 0, 5, 17) | |
e = self.theclass(2001, 1, 1, 0, 5, 17) | |
self.assertEqual(d, e) | |
self.assertEqual(hash(d), hash(e)) | |
dic = {d: 1} | |
dic[e] = 2 | |
self.assertEqual(len(dic), 1) | |
self.assertEqual(dic[d], 2) | |
self.assertEqual(dic[e], 2) | |
def test_computations(self): | |
a = self.theclass(2002, 1, 31) | |
b = self.theclass(1956, 1, 31) | |
diff = a-b | |
self.assertEqual(diff.days, 46*365 + len(range(1956, 2002, 4))) | |
self.assertEqual(diff.seconds, 0) | |
self.assertEqual(diff.microseconds, 0) | |
a = self.theclass(2002, 3, 2, 17, 6) | |
millisec = timedelta(0, 0, 1000) | |
hour = timedelta(0, 3600) | |
day = timedelta(1) | |
week = timedelta(7) | |
self.assertEqual(a + hour, self.theclass(2002, 3, 2, 18, 6)) | |
self.assertEqual(hour + a, self.theclass(2002, 3, 2, 18, 6)) | |
self.assertEqual(a + 10*hour, self.theclass(2002, 3, 3, 3, 6)) | |
self.assertEqual(a - hour, self.theclass(2002, 3, 2, 16, 6)) | |
self.assertEqual(-hour + a, self.theclass(2002, 3, 2, 16, 6)) | |
self.assertEqual(a - hour, a + -hour) | |
self.assertEqual(a - 20*hour, self.theclass(2002, 3, 1, 21, 6)) | |
self.assertEqual(a + day, self.theclass(2002, 3, 3, 17, 6)) | |
self.assertEqual(a - day, self.theclass(2002, 3, 1, 17, 6)) | |
self.assertEqual(a + week, self.theclass(2002, 3, 9, 17, 6)) | |
self.assertEqual(a - week, self.theclass(2002, 2, 23, 17, 6)) | |
self.assertEqual(a + 52*week, self.theclass(2003, 3, 1, 17, 6)) | |
self.assertEqual(a - 52*week, self.theclass(2001, 3, 3, 17, 6)) | |
self.assertEqual((a + week) - a, week) | |
self.assertEqual((a + day) - a, day) | |
self.assertEqual((a + hour) - a, hour) | |
self.assertEqual((a + millisec) - a, millisec) | |
self.assertEqual((a - week) - a, -week) | |
self.assertEqual((a - day) - a, -day) | |
self.assertEqual((a - hour) - a, -hour) | |
self.assertEqual((a - millisec) - a, -millisec) | |
self.assertEqual(a - (a + week), -week) | |
self.assertEqual(a - (a + day), -day) | |
self.assertEqual(a - (a + hour), -hour) | |
self.assertEqual(a - (a + millisec), -millisec) | |
self.assertEqual(a - (a - week), week) | |
self.assertEqual(a - (a - day), day) | |
self.assertEqual(a - (a - hour), hour) | |
self.assertEqual(a - (a - millisec), millisec) | |
self.assertEqual(a + (week + day + hour + millisec), | |
self.theclass(2002, 3, 10, 18, 6, 0, 1000)) | |
self.assertEqual(a + (week + day + hour + millisec), | |
(((a + week) + day) + hour) + millisec) | |
self.assertEqual(a - (week + day + hour + millisec), | |
self.theclass(2002, 2, 22, 16, 5, 59, 999000)) | |
self.assertEqual(a - (week + day + hour + millisec), | |
(((a - week) - day) - hour) - millisec) | |
# Add/sub ints, longs, floats should be illegal | |
for i in 1, 1L, 1.0: | |
self.assertRaises(TypeError, lambda: a+i) | |
self.assertRaises(TypeError, lambda: a-i) | |
self.assertRaises(TypeError, lambda: i+a) | |
self.assertRaises(TypeError, lambda: i-a) | |
# delta - datetime is senseless. | |
self.assertRaises(TypeError, lambda: day - a) | |
# mixing datetime and (delta or datetime) via * or // is senseless | |
self.assertRaises(TypeError, lambda: day * a) | |
self.assertRaises(TypeError, lambda: a * day) | |
self.assertRaises(TypeError, lambda: day // a) | |
self.assertRaises(TypeError, lambda: a // day) | |
self.assertRaises(TypeError, lambda: a * a) | |
self.assertRaises(TypeError, lambda: a // a) | |
# datetime + datetime is senseless | |
self.assertRaises(TypeError, lambda: a + a) | |
def test_pickling(self): | |
args = 6, 7, 23, 20, 59, 1, 64**2 | |
orig = self.theclass(*args) | |
for pickler, unpickler, proto in pickle_choices: | |
green = pickler.dumps(orig, proto) | |
derived = unpickler.loads(green) | |
self.assertEqual(orig, derived) | |
def test_more_pickling(self): | |
a = self.theclass(2003, 2, 7, 16, 48, 37, 444116) | |
s = pickle.dumps(a) | |
b = pickle.loads(s) | |
self.assertEqual(b.year, 2003) | |
self.assertEqual(b.month, 2) | |
self.assertEqual(b.day, 7) | |
def test_pickling_subclass_datetime(self): | |
args = 6, 7, 23, 20, 59, 1, 64**2 | |
orig = SubclassDatetime(*args) | |
for pickler, unpickler, proto in pickle_choices: | |
green = pickler.dumps(orig, proto) | |
derived = unpickler.loads(green) | |
self.assertEqual(orig, derived) | |
def test_more_compare(self): | |
# The test_compare() inherited from TestDate covers the error cases. | |
# We just want to test lexicographic ordering on the members datetime | |
# has that date lacks. | |
args = [2000, 11, 29, 20, 58, 16, 999998] | |
t1 = self.theclass(*args) | |
t2 = self.theclass(*args) | |
self.assertTrue(t1 == t2) | |
self.assertTrue(t1 <= t2) | |
self.assertTrue(t1 >= t2) | |
self.assertTrue(not t1 != t2) | |
self.assertTrue(not t1 < t2) | |
self.assertTrue(not t1 > t2) | |
self.assertEqual(cmp(t1, t2), 0) | |
self.assertEqual(cmp(t2, t1), 0) | |
for i in range(len(args)): | |
newargs = args[:] | |
newargs[i] = args[i] + 1 | |
t2 = self.theclass(*newargs) # this is larger than t1 | |
self.assertTrue(t1 < t2) | |
self.assertTrue(t2 > t1) | |
self.assertTrue(t1 <= t2) | |
self.assertTrue(t2 >= t1) | |
self.assertTrue(t1 != t2) | |
self.assertTrue(t2 != t1) | |
self.assertTrue(not t1 == t2) | |
self.assertTrue(not t2 == t1) | |
self.assertTrue(not t1 > t2) | |
self.assertTrue(not t2 < t1) | |
self.assertTrue(not t1 >= t2) | |
self.assertTrue(not t2 <= t1) | |
self.assertEqual(cmp(t1, t2), -1) | |
self.assertEqual(cmp(t2, t1), 1) | |
# A helper for timestamp constructor tests. | |
def verify_field_equality(self, expected, got): | |
self.assertEqual(expected.tm_year, got.year) | |
self.assertEqual(expected.tm_mon, got.month) | |
self.assertEqual(expected.tm_mday, got.day) | |
self.assertEqual(expected.tm_hour, got.hour) | |
self.assertEqual(expected.tm_min, got.minute) | |
self.assertEqual(expected.tm_sec, got.second) | |
def test_fromtimestamp(self): | |
import time | |
ts = time.time() | |
expected = time.localtime(ts) | |
got = self.theclass.fromtimestamp(ts) | |
self.verify_field_equality(expected, got) | |
def test_utcfromtimestamp(self): | |
import time | |
ts = time.time() | |
expected = time.gmtime(ts) | |
got = self.theclass.utcfromtimestamp(ts) | |
self.verify_field_equality(expected, got) | |
def test_microsecond_rounding(self): | |
# Test whether fromtimestamp "rounds up" floats that are less | |
# than one microsecond smaller than an integer. | |
self.assertEqual(self.theclass.fromtimestamp(0.9999999), | |
self.theclass.fromtimestamp(1)) | |
def test_insane_fromtimestamp(self): | |
# It's possible that some platform maps time_t to double, | |
# and that this test will fail there. This test should | |
# exempt such platforms (provided they return reasonable | |
# results!). | |
for insane in -1e200, 1e200: | |
self.assertRaises(ValueError, self.theclass.fromtimestamp, | |
insane) | |
def test_insane_utcfromtimestamp(self): | |
# It's possible that some platform maps time_t to double, | |
# and that this test will fail there. This test should | |
# exempt such platforms (provided they return reasonable | |
# results!). | |
for insane in -1e200, 1e200: | |
self.assertRaises(ValueError, self.theclass.utcfromtimestamp, | |
insane) | |
@unittest.skipIf(sys.platform == "win32", "Windows doesn't accept negative timestamps") | |
def test_negative_float_fromtimestamp(self): | |
# The result is tz-dependent; at least test that this doesn't | |
# fail (like it did before bug 1646728 was fixed). | |
self.theclass.fromtimestamp(-1.05) | |
@unittest.skipIf(sys.platform == "win32", "Windows doesn't accept negative timestamps") | |
def test_negative_float_utcfromtimestamp(self): | |
d = self.theclass.utcfromtimestamp(-1.05) | |
self.assertEqual(d, self.theclass(1969, 12, 31, 23, 59, 58, 950000)) | |
def test_utcnow(self): | |
import time | |
# Call it a success if utcnow() and utcfromtimestamp() are within | |
# a second of each other. | |
tolerance = timedelta(seconds=1) | |
for dummy in range(3): | |
from_now = self.theclass.utcnow() | |
from_timestamp = self.theclass.utcfromtimestamp(time.time()) | |
if abs(from_timestamp - from_now) <= tolerance: | |
break | |
# Else try again a few times. | |
self.assertTrue(abs(from_timestamp - from_now) <= tolerance) | |
def test_strptime(self): | |
import _strptime | |
string = '2004-12-01 13:02:47.197' | |
format = '%Y-%m-%d %H:%M:%S.%f' | |
result, frac = _strptime._strptime(string, format) | |
expected = self.theclass(*(result[0:6]+(frac,))) | |
got = self.theclass.strptime(string, format) | |
self.assertEqual(expected, got) | |
def test_more_timetuple(self): | |
# This tests fields beyond those tested by the TestDate.test_timetuple. | |
t = self.theclass(2004, 12, 31, 6, 22, 33) | |
self.assertEqual(t.timetuple(), (2004, 12, 31, 6, 22, 33, 4, 366, -1)) | |
self.assertEqual(t.timetuple(), | |
(t.year, t.month, t.day, | |
t.hour, t.minute, t.second, | |
t.weekday(), | |
t.toordinal() - date(t.year, 1, 1).toordinal() + 1, | |
-1)) | |
tt = t.timetuple() | |
self.assertEqual(tt.tm_year, t.year) | |
self.assertEqual(tt.tm_mon, t.month) | |
self.assertEqual(tt.tm_mday, t.day) | |
self.assertEqual(tt.tm_hour, t.hour) | |
self.assertEqual(tt.tm_min, t.minute) | |
self.assertEqual(tt.tm_sec, t.second) | |
self.assertEqual(tt.tm_wday, t.weekday()) | |
self.assertEqual(tt.tm_yday, t.toordinal() - | |
date(t.year, 1, 1).toordinal() + 1) | |
self.assertEqual(tt.tm_isdst, -1) | |
def test_more_strftime(self): | |
# This tests fields beyond those tested by the TestDate.test_strftime. | |
t = self.theclass(2004, 12, 31, 6, 22, 33, 47) | |
self.assertEqual(t.strftime("%m %d %y %f %S %M %H %j"), | |
"12 31 04 000047 33 22 06 366") | |
def test_extract(self): | |
dt = self.theclass(2002, 3, 4, 18, 45, 3, 1234) | |
self.assertEqual(dt.date(), date(2002, 3, 4)) | |
self.assertEqual(dt.time(), time(18, 45, 3, 1234)) | |
def test_combine(self): | |
d = date(2002, 3, 4) | |
t = time(18, 45, 3, 1234) | |
expected = self.theclass(2002, 3, 4, 18, 45, 3, 1234) | |
combine = self.theclass.combine | |
dt = combine(d, t) | |
self.assertEqual(dt, expected) | |
dt = combine(time=t, date=d) | |
self.assertEqual(dt, expected) | |
self.assertEqual(d, dt.date()) | |
self.assertEqual(t, dt.time()) | |
self.assertEqual(dt, combine(dt.date(), dt.time())) | |
self.assertRaises(TypeError, combine) # need an arg | |
self.assertRaises(TypeError, combine, d) # need two args | |
self.assertRaises(TypeError, combine, t, d) # args reversed | |
self.assertRaises(TypeError, combine, d, t, 1) # too many args | |
self.assertRaises(TypeError, combine, "date", "time") # wrong types | |
def test_replace(self): | |
cls = self.theclass | |
args = [1, 2, 3, 4, 5, 6, 7] | |
base = cls(*args) | |
self.assertEqual(base, base.replace()) | |
i = 0 | |
for name, newval in (("year", 2), | |
("month", 3), | |
("day", 4), | |
("hour", 5), | |
("minute", 6), | |
("second", 7), | |
("microsecond", 8)): | |
newargs = args[:] | |
newargs[i] = newval | |
expected = cls(*newargs) | |
got = base.replace(**{name: newval}) | |
self.assertEqual(expected, got) | |
i += 1 | |
# Out of bounds. | |
base = cls(2000, 2, 29) | |
self.assertRaises(ValueError, base.replace, year=2001) | |
def test_astimezone(self): | |
# Pretty boring! The TZ test is more interesting here. astimezone() | |
# simply can't be applied to a naive object. | |
dt = self.theclass.now() | |
f = FixedOffset(44, "") | |
self.assertRaises(TypeError, dt.astimezone) # not enough args | |
self.assertRaises(TypeError, dt.astimezone, f, f) # too many args | |
self.assertRaises(TypeError, dt.astimezone, dt) # arg wrong type | |
self.assertRaises(ValueError, dt.astimezone, f) # naive | |
self.assertRaises(ValueError, dt.astimezone, tz=f) # naive | |
class Bogus(tzinfo): | |
def utcoffset(self, dt): return None | |
def dst(self, dt): return timedelta(0) | |
bog = Bogus() | |
self.assertRaises(ValueError, dt.astimezone, bog) # naive | |
class AlsoBogus(tzinfo): | |
def utcoffset(self, dt): return timedelta(0) | |
def dst(self, dt): return None | |
alsobog = AlsoBogus() | |
self.assertRaises(ValueError, dt.astimezone, alsobog) # also naive | |
def test_subclass_datetime(self): | |
class C(self.theclass): | |
theAnswer = 42 | |
def __new__(cls, *args, **kws): | |
temp = kws.copy() | |
extra = temp.pop('extra') | |
result = self.theclass.__new__(cls, *args, **temp) | |
result.extra = extra | |
return result | |
def newmeth(self, start): | |
return start + self.year + self.month + self.second | |
args = 2003, 4, 14, 12, 13, 41 | |
dt1 = self.theclass(*args) | |
dt2 = C(*args, **{'extra': 7}) | |
self.assertEqual(dt2.__class__, C) | |
self.assertEqual(dt2.theAnswer, 42) | |
self.assertEqual(dt2.extra, 7) | |
self.assertEqual(dt1.toordinal(), dt2.toordinal()) | |
self.assertEqual(dt2.newmeth(-7), dt1.year + dt1.month + | |
dt1.second - 7) | |
class SubclassTime(time): | |
sub_var = 1 | |
class TestTime(HarmlessMixedComparison, unittest.TestCase): | |
theclass = time | |
def test_basic_attributes(self): | |
t = self.theclass(12, 0) | |
self.assertEqual(t.hour, 12) | |
self.assertEqual(t.minute, 0) | |
self.assertEqual(t.second, 0) | |
self.assertEqual(t.microsecond, 0) | |
def test_basic_attributes_nonzero(self): | |
# Make sure all attributes are non-zero so bugs in | |
# bit-shifting access show up. | |
t = self.theclass(12, 59, 59, 8000) | |
self.assertEqual(t.hour, 12) | |
self.assertEqual(t.minute, 59) | |
self.assertEqual(t.second, 59) | |
self.assertEqual(t.microsecond, 8000) | |
def test_roundtrip(self): | |
t = self.theclass(1, 2, 3, 4) | |
# Verify t -> string -> time identity. | |
s = repr(t) | |
self.assertTrue(s.startswith('datetime.')) | |
s = s[9:] | |
t2 = eval(s) | |
self.assertEqual(t, t2) | |
# Verify identity via reconstructing from pieces. | |
t2 = self.theclass(t.hour, t.minute, t.second, | |
t.microsecond) | |
self.assertEqual(t, t2) | |
def test_comparing(self): | |
args = [1, 2, 3, 4] | |
t1 = self.theclass(*args) | |
t2 = self.theclass(*args) | |
self.assertTrue(t1 == t2) | |
self.assertTrue(t1 <= t2) | |
self.assertTrue(t1 >= t2) | |
self.assertTrue(not t1 != t2) | |
self.assertTrue(not t1 < t2) | |
self.assertTrue(not t1 > t2) | |
self.assertEqual(cmp(t1, t2), 0) | |
self.assertEqual(cmp(t2, t1), 0) | |
for i in range(len(args)): | |
newargs = args[:] | |
newargs[i] = args[i] + 1 | |
t2 = self.theclass(*newargs) # this is larger than t1 | |
self.assertTrue(t1 < t2) | |
self.assertTrue(t2 > t1) | |
self.assertTrue(t1 <= t2) | |
self.assertTrue(t2 >= t1) | |
self.assertTrue(t1 != t2) | |
self.assertTrue(t2 != t1) | |
self.assertTrue(not t1 == t2) | |
self.assertTrue(not t2 == t1) | |
self.assertTrue(not t1 > t2) | |
self.assertTrue(not t2 < t1) | |
self.assertTrue(not t1 >= t2) | |
self.assertTrue(not t2 <= t1) | |
self.assertEqual(cmp(t1, t2), -1) | |
self.assertEqual(cmp(t2, t1), 1) | |
for badarg in OTHERSTUFF: | |
self.assertEqual(t1 == badarg, False) | |
self.assertEqual(t1 != badarg, True) | |
self.assertEqual(badarg == t1, False) | |
self.assertEqual(badarg != t1, True) | |
self.assertRaises(TypeError, lambda: t1 <= badarg) | |
self.assertRaises(TypeError, lambda: t1 < badarg) | |
self.assertRaises(TypeError, lambda: t1 > badarg) | |
self.assertRaises(TypeError, lambda: t1 >= badarg) | |
self.assertRaises(TypeError, lambda: badarg <= t1) | |
self.assertRaises(TypeError, lambda: badarg < t1) | |
self.assertRaises(TypeError, lambda: badarg > t1) | |
self.assertRaises(TypeError, lambda: badarg >= t1) | |
def test_bad_constructor_arguments(self): | |
# bad hours | |
self.theclass(0, 0) # no exception | |
self.theclass(23, 0) # no exception | |
self.assertRaises(ValueError, self.theclass, -1, 0) | |
self.assertRaises(ValueError, self.theclass, 24, 0) | |
# bad minutes | |
self.theclass(23, 0) # no exception | |
self.theclass(23, 59) # no exception | |
self.assertRaises(ValueError, self.theclass, 23, -1) | |
self.assertRaises(ValueError, self.theclass, 23, 60) | |
# bad seconds | |
self.theclass(23, 59, 0) # no exception | |
self.theclass(23, 59, 59) # no exception | |
self.assertRaises(ValueError, self.theclass, 23, 59, -1) | |
self.assertRaises(ValueError, self.theclass, 23, 59, 60) | |
# bad microseconds | |
self.theclass(23, 59, 59, 0) # no exception | |
self.theclass(23, 59, 59, 999999) # no exception | |
self.assertRaises(ValueError, self.theclass, 23, 59, 59, -1) | |
self.assertRaises(ValueError, self.theclass, 23, 59, 59, 1000000) | |
def test_hash_equality(self): | |
d = self.theclass(23, 30, 17) | |
e = self.theclass(23, 30, 17) | |
self.assertEqual(d, e) | |
self.assertEqual(hash(d), hash(e)) | |
dic = {d: 1} | |
dic[e] = 2 | |
self.assertEqual(len(dic), 1) | |
self.assertEqual(dic[d], 2) | |
self.assertEqual(dic[e], 2) | |
d = self.theclass(0, 5, 17) | |
e = self.theclass(0, 5, 17) | |
self.assertEqual(d, e) | |
self.assertEqual(hash(d), hash(e)) | |
dic = {d: 1} | |
dic[e] = 2 | |
self.assertEqual(len(dic), 1) | |
self.assertEqual(dic[d], 2) | |
self.assertEqual(dic[e], 2) | |
def test_isoformat(self): | |
t = self.theclass(4, 5, 1, 123) | |
self.assertEqual(t.isoformat(), "04:05:01.000123") | |
self.assertEqual(t.isoformat(), str(t)) | |
t = self.theclass() | |
self.assertEqual(t.isoformat(), "00:00:00") | |
self.assertEqual(t.isoformat(), str(t)) | |
t = self.theclass(microsecond=1) | |
self.assertEqual(t.isoformat(), "00:00:00.000001") | |
self.assertEqual(t.isoformat(), str(t)) | |
t = self.theclass(microsecond=10) | |
self.assertEqual(t.isoformat(), "00:00:00.000010") | |
self.assertEqual(t.isoformat(), str(t)) | |
t = self.theclass(microsecond=100) | |
self.assertEqual(t.isoformat(), "00:00:00.000100") | |
self.assertEqual(t.isoformat(), str(t)) | |
t = self.theclass(microsecond=1000) | |
self.assertEqual(t.isoformat(), "00:00:00.001000") | |
self.assertEqual(t.isoformat(), str(t)) | |
t = self.theclass(microsecond=10000) | |
self.assertEqual(t.isoformat(), "00:00:00.010000") | |
self.assertEqual(t.isoformat(), str(t)) | |
t = self.theclass(microsecond=100000) | |
self.assertEqual(t.isoformat(), "00:00:00.100000") | |
self.assertEqual(t.isoformat(), str(t)) | |
def test_1653736(self): | |
# verify it doesn't accept extra keyword arguments | |
t = self.theclass(second=1) | |
self.assertRaises(TypeError, t.isoformat, foo=3) | |
def test_strftime(self): | |
t = self.theclass(1, 2, 3, 4) | |
self.assertEqual(t.strftime('%H %M %S %f'), "01 02 03 000004") | |
# A naive object replaces %z and %Z with empty strings. | |
self.assertEqual(t.strftime("'%z' '%Z'"), "'' ''") | |
def test_format(self): | |
t = self.theclass(1, 2, 3, 4) | |
self.assertEqual(t.__format__(''), str(t)) | |
# check that a derived class's __str__() gets called | |
class A(self.theclass): | |
def __str__(self): | |
return 'A' | |
a = A(1, 2, 3, 4) | |
self.assertEqual(a.__format__(''), 'A') | |
# check that a derived class's strftime gets called | |
class B(self.theclass): | |
def strftime(self, format_spec): | |
return 'B' | |
b = B(1, 2, 3, 4) | |
self.assertEqual(b.__format__(''), str(t)) | |
for fmt in ['%H %M %S', | |
]: | |
self.assertEqual(t.__format__(fmt), t.strftime(fmt)) | |
self.assertEqual(a.__format__(fmt), t.strftime(fmt)) | |
self.assertEqual(b.__format__(fmt), 'B') | |
def test_str(self): | |
self.assertEqual(str(self.theclass(1, 2, 3, 4)), "01:02:03.000004") | |
self.assertEqual(str(self.theclass(10, 2, 3, 4000)), "10:02:03.004000") | |
self.assertEqual(str(self.theclass(0, 2, 3, 400000)), "00:02:03.400000") | |
self.assertEqual(str(self.theclass(12, 2, 3, 0)), "12:02:03") | |
self.assertEqual(str(self.theclass(23, 15, 0, 0)), "23:15:00") | |
def test_repr(self): | |
name = 'datetime.' + self.theclass.__name__ | |
self.assertEqual(repr(self.theclass(1, 2, 3, 4)), | |
"%s(1, 2, 3, 4)" % name) | |
self.assertEqual(repr(self.theclass(10, 2, 3, 4000)), | |
"%s(10, 2, 3, 4000)" % name) | |
self.assertEqual(repr(self.theclass(0, 2, 3, 400000)), | |
"%s(0, 2, 3, 400000)" % name) | |
self.assertEqual(repr(self.theclass(12, 2, 3, 0)), | |
"%s(12, 2, 3)" % name) | |
self.assertEqual(repr(self.theclass(23, 15, 0, 0)), | |
"%s(23, 15)" % name) | |
def test_resolution_info(self): | |
self.assertIsInstance(self.theclass.min, self.theclass) | |
self.assertIsInstance(self.theclass.max, self.theclass) | |
self.assertIsInstance(self.theclass.resolution, timedelta) | |
self.assertTrue(self.theclass.max > self.theclass.min) | |
def test_pickling(self): | |
args = 20, 59, 16, 64**2 | |
orig = self.theclass(*args) | |
for pickler, unpickler, proto in pickle_choices: | |
green = pickler.dumps(orig, proto) | |
derived = unpickler.loads(green) | |
self.assertEqual(orig, derived) | |
def test_pickling_subclass_time(self): | |
args = 20, 59, 16, 64**2 | |
orig = SubclassTime(*args) | |
for pickler, unpickler, proto in pickle_choices: | |
green = pickler.dumps(orig, proto) | |
derived = unpickler.loads(green) | |
self.assertEqual(orig, derived) | |
def test_bool(self): | |
cls = self.theclass | |
self.assertTrue(cls(1)) | |
self.assertTrue(cls(0, 1)) | |
self.assertTrue(cls(0, 0, 1)) | |
self.assertTrue(cls(0, 0, 0, 1)) | |
self.assertTrue(not cls(0)) | |
self.assertTrue(not cls()) | |
def test_replace(self): | |
cls = self.theclass | |
args = [1, 2, 3, 4] | |
base = cls(*args) | |
self.assertEqual(base, base.replace()) | |
i = 0 | |
for name, newval in (("hour", 5), | |
("minute", 6), | |
("second", 7), | |
("microsecond", 8)): | |
newargs = args[:] | |
newargs[i] = newval | |
expected = cls(*newargs) | |
got = base.replace(**{name: newval}) | |
self.assertEqual(expected, got) | |
i += 1 | |
# Out of bounds. | |
base = cls(1) | |
self.assertRaises(ValueError, base.replace, hour=24) | |
self.assertRaises(ValueError, base.replace, minute=-1) | |
self.assertRaises(ValueError, base.replace, second=100) | |
self.assertRaises(ValueError, base.replace, microsecond=1000000) | |
def test_subclass_time(self): | |
class C(self.theclass): | |
theAnswer = 42 | |
def __new__(cls, *args, **kws): | |
temp = kws.copy() | |
extra = temp.pop('extra') | |
result = self.theclass.__new__(cls, *args, **temp) | |
result.extra = extra | |
return result | |
def newmeth(self, start): | |
return start + self.hour + self.second | |
args = 4, 5, 6 | |
dt1 = self.theclass(*args) | |
dt2 = C(*args, **{'extra': 7}) | |
self.assertEqual(dt2.__class__, C) | |
self.assertEqual(dt2.theAnswer, 42) | |
self.assertEqual(dt2.extra, 7) | |
self.assertEqual(dt1.isoformat(), dt2.isoformat()) | |
self.assertEqual(dt2.newmeth(-7), dt1.hour + dt1.second - 7) | |
def test_backdoor_resistance(self): | |
# see TestDate.test_backdoor_resistance(). | |
base = '2:59.0' | |
for hour_byte in ' ', '9', chr(24), '\xff': | |
self.assertRaises(TypeError, self.theclass, | |
hour_byte + base[1:]) | |
# A mixin for classes with a tzinfo= argument. Subclasses must define | |
# theclass as a class atribute, and theclass(1, 1, 1, tzinfo=whatever) | |
# must be legit (which is true for time and datetime). | |
class TZInfoBase: | |
def test_argument_passing(self): | |
cls = self.theclass | |
# A datetime passes itself on, a time passes None. | |
class introspective(tzinfo): | |
def tzname(self, dt): return dt and "real" or "none" | |
def utcoffset(self, dt): | |
return timedelta(minutes = dt and 42 or -42) | |
dst = utcoffset | |
obj = cls(1, 2, 3, tzinfo=introspective()) | |
expected = cls is time and "none" or "real" | |
self.assertEqual(obj.tzname(), expected) | |
expected = timedelta(minutes=(cls is time and -42 or 42)) | |
self.assertEqual(obj.utcoffset(), expected) | |
self.assertEqual(obj.dst(), expected) | |
def test_bad_tzinfo_classes(self): | |
cls = self.theclass | |
self.assertRaises(TypeError, cls, 1, 1, 1, tzinfo=12) | |
class NiceTry(object): | |
def __init__(self): pass | |
def utcoffset(self, dt): pass | |
self.assertRaises(TypeError, cls, 1, 1, 1, tzinfo=NiceTry) | |
class BetterTry(tzinfo): | |
def __init__(self): pass | |
def utcoffset(self, dt): pass | |
b = BetterTry() | |
t = cls(1, 1, 1, tzinfo=b) | |
self.assertTrue(t.tzinfo is b) | |
def test_utc_offset_out_of_bounds(self): | |
class Edgy(tzinfo): | |
def __init__(self, offset): | |
self.offset = timedelta(minutes=offset) | |
def utcoffset(self, dt): | |
return self.offset | |
cls = self.theclass | |
for offset, legit in ((-1440, False), | |
(-1439, True), | |
(1439, True), | |
(1440, False)): | |
if cls is time: | |
t = cls(1, 2, 3, tzinfo=Edgy(offset)) | |
elif cls is datetime: | |
t = cls(6, 6, 6, 1, 2, 3, tzinfo=Edgy(offset)) | |
else: | |
assert 0, "impossible" | |
if legit: | |
aofs = abs(offset) | |
h, m = divmod(aofs, 60) | |
tag = "%c%02d:%02d" % (offset < 0 and '-' or '+', h, m) | |
if isinstance(t, datetime): | |
t = t.timetz() | |
self.assertEqual(str(t), "01:02:03" + tag) | |
else: | |
self.assertRaises(ValueError, str, t) | |
def test_tzinfo_classes(self): | |
cls = self.theclass | |
class C1(tzinfo): | |
def utcoffset(self, dt): return None | |
def dst(self, dt): return None | |
def tzname(self, dt): return None | |
for t in (cls(1, 1, 1), | |
cls(1, 1, 1, tzinfo=None), | |
cls(1, 1, 1, tzinfo=C1())): | |
self.assertTrue(t.utcoffset() is None) | |
self.assertTrue(t.dst() is None) | |
self.assertTrue(t.tzname() is None) | |
class C3(tzinfo): | |
def utcoffset(self, dt): return timedelta(minutes=-1439) | |
def dst(self, dt): return timedelta(minutes=1439) | |
def tzname(self, dt): return "aname" | |
t = cls(1, 1, 1, tzinfo=C3()) | |
self.assertEqual(t.utcoffset(), timedelta(minutes=-1439)) | |
self.assertEqual(t.dst(), timedelta(minutes=1439)) | |
self.assertEqual(t.tzname(), "aname") | |
# Wrong types. | |
class C4(tzinfo): | |
def utcoffset(self, dt): return "aname" | |
def dst(self, dt): return 7 | |
def tzname(self, dt): return 0 | |
t = cls(1, 1, 1, tzinfo=C4()) | |
self.assertRaises(TypeError, t.utcoffset) | |
self.assertRaises(TypeError, t.dst) | |
self.assertRaises(TypeError, t.tzname) | |
# Offset out of range. | |
class C6(tzinfo): | |
def utcoffset(self, dt): return timedelta(hours=-24) | |
def dst(self, dt): return timedelta(hours=24) | |
t = cls(1, 1, 1, tzinfo=C6()) | |
self.assertRaises(ValueError, t.utcoffset) | |
self.assertRaises(ValueError, t.dst) | |
# Not a whole number of minutes. | |
class C7(tzinfo): | |
def utcoffset(self, dt): return timedelta(seconds=61) | |
def dst(self, dt): return timedelta(microseconds=-81) | |
t = cls(1, 1, 1, tzinfo=C7()) | |
self.assertRaises(ValueError, t.utcoffset) | |
self.assertRaises(ValueError, t.dst) | |
def test_aware_compare(self): | |
cls = self.theclass | |
# Ensure that utcoffset() gets ignored if the comparands have | |
# the same tzinfo member. | |
class OperandDependentOffset(tzinfo): | |
def utcoffset(self, t): | |
if t.minute < 10: | |
# d0 and d1 equal after adjustment | |
return timedelta(minutes=t.minute) | |
else: | |
# d2 off in the weeds | |
return timedelta(minutes=59) | |
base = cls(8, 9, 10, tzinfo=OperandDependentOffset()) | |
d0 = base.replace(minute=3) | |
d1 = base.replace(minute=9) | |
d2 = base.replace(minute=11) | |
for x in d0, d1, d2: | |
for y in d0, d1, d2: | |
got = cmp(x, y) | |
expected = cmp(x.minute, y.minute) | |
self.assertEqual(got, expected) | |
# However, if they're different members, uctoffset is not ignored. | |
# Note that a time can't actually have an operand-depedent offset, | |
# though (and time.utcoffset() passes None to tzinfo.utcoffset()), | |
# so skip this test for time. | |
if cls is not time: | |
d0 = base.replace(minute=3, tzinfo=OperandDependentOffset()) | |
d1 = base.replace(minute=9, tzinfo=OperandDependentOffset()) | |
d2 = base.replace(minute=11, tzinfo=OperandDependentOffset()) | |
for x in d0, d1, d2: | |
for y in d0, d1, d2: | |
got = cmp(x, y) | |
if (x is d0 or x is d1) and (y is d0 or y is d1): | |
expected = 0 | |
elif x is y is d2: | |
expected = 0 | |
elif x is d2: | |
expected = -1 | |
else: | |
assert y is d2 | |
expected = 1 | |
self.assertEqual(got, expected) | |
# Testing time objects with a non-None tzinfo. | |
class TestTimeTZ(TestTime, TZInfoBase, unittest.TestCase): | |
theclass = time | |
def test_empty(self): | |
t = self.theclass() | |
self.assertEqual(t.hour, 0) | |
self.assertEqual(t.minute, 0) | |
self.assertEqual(t.second, 0) | |
self.assertEqual(t.microsecond, 0) | |
self.assertTrue(t.tzinfo is None) | |
def test_zones(self): | |
est = FixedOffset(-300, "EST", 1) | |
utc = FixedOffset(0, "UTC", -2) | |
met = FixedOffset(60, "MET", 3) | |
t1 = time( 7, 47, tzinfo=est) | |
t2 = time(12, 47, tzinfo=utc) | |
t3 = time(13, 47, tzinfo=met) | |
t4 = time(microsecond=40) | |
t5 = time(microsecond=40, tzinfo=utc) | |
self.assertEqual(t1.tzinfo, est) | |
self.assertEqual(t2.tzinfo, utc) | |
self.assertEqual(t3.tzinfo, met) | |
self.assertTrue(t4.tzinfo is None) | |
self.assertEqual(t5.tzinfo, utc) | |
self.assertEqual(t1.utcoffset(), timedelta(minutes=-300)) | |
self.assertEqual(t2.utcoffset(), timedelta(minutes=0)) | |
self.assertEqual(t3.utcoffset(), timedelta(minutes=60)) | |
self.assertTrue(t4.utcoffset() is None) | |
self.assertRaises(TypeError, t1.utcoffset, "no args") | |
self.assertEqual(t1.tzname(), "EST") | |
self.assertEqual(t2.tzname(), "UTC") | |
self.assertEqual(t3.tzname(), "MET") | |
self.assertTrue(t4.tzname() is None) | |
self.assertRaises(TypeError, t1.tzname, "no args") | |
self.assertEqual(t1.dst(), timedelta(minutes=1)) | |
self.assertEqual(t2.dst(), timedelta(minutes=-2)) | |
self.assertEqual(t3.dst(), timedelta(minutes=3)) | |
self.assertTrue(t4.dst() is None) | |
self.assertRaises(TypeError, t1.dst, "no args") | |
self.assertEqual(hash(t1), hash(t2)) | |
self.assertEqual(hash(t1), hash(t3)) | |
self.assertEqual(hash(t2), hash(t3)) | |
self.assertEqual(t1, t2) | |
self.assertEqual(t1, t3) | |
self.assertEqual(t2, t3) | |
self.assertRaises(TypeError, lambda: t4 == t5) # mixed tz-aware & naive | |
self.assertRaises(TypeError, lambda: t4 < t5) # mixed tz-aware & naive | |
self.assertRaises(TypeError, lambda: t5 < t4) # mixed tz-aware & naive | |
self.assertEqual(str(t1), "07:47:00-05:00") | |
self.assertEqual(str(t2), "12:47:00+00:00") | |
self.assertEqual(str(t3), "13:47:00+01:00") | |
self.assertEqual(str(t4), "00:00:00.000040") | |
self.assertEqual(str(t5), "00:00:00.000040+00:00") | |
self.assertEqual(t1.isoformat(), "07:47:00-05:00") | |
self.assertEqual(t2.isoformat(), "12:47:00+00:00") | |
self.assertEqual(t3.isoformat(), "13:47:00+01:00") | |
self.assertEqual(t4.isoformat(), "00:00:00.000040") | |
self.assertEqual(t5.isoformat(), "00:00:00.000040+00:00") | |
d = 'datetime.time' | |
self.assertEqual(repr(t1), d + "(7, 47, tzinfo=est)") | |
self.assertEqual(repr(t2), d + "(12, 47, tzinfo=utc)") | |
self.assertEqual(repr(t3), d + "(13, 47, tzinfo=met)") | |
self.assertEqual(repr(t4), d + "(0, 0, 0, 40)") | |
self.assertEqual(repr(t5), d + "(0, 0, 0, 40, tzinfo=utc)") | |
self.assertEqual(t1.strftime("%H:%M:%S %%Z=%Z %%z=%z"), | |
"07:47:00 %Z=EST %z=-0500") | |
self.assertEqual(t2.strftime("%H:%M:%S %Z %z"), "12:47:00 UTC +0000") | |
self.assertEqual(t3.strftime("%H:%M:%S %Z %z"), "13:47:00 MET +0100") | |
yuck = FixedOffset(-1439, "%z %Z %%z%%Z") | |
t1 = time(23, 59, tzinfo=yuck) | |
self.assertEqual(t1.strftime("%H:%M %%Z='%Z' %%z='%z'"), | |
"23:59 %Z='%z %Z %%z%%Z' %z='-2359'") | |
# Check that an invalid tzname result raises an exception. | |
class Badtzname(tzinfo): | |
def tzname(self, dt): return 42 | |
t = time(2, 3, 4, tzinfo=Badtzname()) | |
self.assertEqual(t.strftime("%H:%M:%S"), "02:03:04") | |
self.assertRaises(TypeError, t.strftime, "%Z") | |
def test_hash_edge_cases(self): | |
# Offsets that overflow a basic time. | |
t1 = self.theclass(0, 1, 2, 3, tzinfo=FixedOffset(1439, "")) | |
t2 = self.theclass(0, 0, 2, 3, tzinfo=FixedOffset(1438, "")) | |
self.assertEqual(hash(t1), hash(t2)) | |
t1 = self.theclass(23, 58, 6, 100, tzinfo=FixedOffset(-1000, "")) | |
t2 = self.theclass(23, 48, 6, 100, tzinfo=FixedOffset(-1010, "")) | |
self.assertEqual(hash(t1), hash(t2)) | |
def test_pickling(self): | |
# Try one without a tzinfo. | |
args = 20, 59, 16, 64**2 | |
orig = self.theclass(*args) | |
for pickler, unpickler, proto in pickle_choices: | |
green = pickler.dumps(orig, proto) | |
derived = unpickler.loads(green) | |
self.assertEqual(orig, derived) | |
# Try one with a tzinfo. | |
tinfo = PicklableFixedOffset(-300, 'cookie') | |
orig = self.theclass(5, 6, 7, tzinfo=tinfo) | |
for pickler, unpickler, proto in pickle_choices: | |
green = pickler.dumps(orig, proto) | |
derived = unpickler.loads(green) | |
self.assertEqual(orig, derived) | |
self.assertIsInstance(derived.tzinfo, PicklableFixedOffset) | |
self.assertEqual(derived.utcoffset(), timedelta(minutes=-300)) | |
self.assertEqual(derived.tzname(), 'cookie') | |
def test_more_bool(self): | |
# Test cases with non-None tzinfo. | |
cls = self.theclass | |
t = cls(0, tzinfo=FixedOffset(-300, "")) | |
self.assertTrue(t) | |
t = cls(5, tzinfo=FixedOffset(-300, "")) | |
self.assertTrue(t) | |
t = cls(5, tzinfo=FixedOffset(300, "")) | |
self.assertTrue(not t) | |
t = cls(23, 59, tzinfo=FixedOffset(23*60 + 59, "")) | |
self.assertTrue(not t) | |
# Mostly ensuring this doesn't overflow internally. | |
t = cls(0, tzinfo=FixedOffset(23*60 + 59, "")) | |
self.assertTrue(t) | |
# But this should yield a value error -- the utcoffset is bogus. | |
t = cls(0, tzinfo=FixedOffset(24*60, "")) | |
self.assertRaises(ValueError, lambda: bool(t)) | |
# Likewise. | |
t = cls(0, tzinfo=FixedOffset(-24*60, "")) | |
self.assertRaises(ValueError, lambda: bool(t)) | |
def test_replace(self): | |
cls = self.theclass | |
z100 = FixedOffset(100, "+100") | |
zm200 = FixedOffset(timedelta(minutes=-200), "-200") | |
args = [1, 2, 3, 4, z100] | |
base = cls(*args) | |
self.assertEqual(base, base.replace()) | |
i = 0 | |
for name, newval in (("hour", 5), | |
("minute", 6), | |
("second", 7), | |
("microsecond", 8), | |
("tzinfo", zm200)): | |
newargs = args[:] | |
newargs[i] = newval | |
expected = cls(*newargs) | |
got = base.replace(**{name: newval}) | |
self.assertEqual(expected, got) | |
i += 1 | |
# Ensure we can get rid of a tzinfo. | |
self.assertEqual(base.tzname(), "+100") | |
base2 = base.replace(tzinfo=None) | |
self.assertTrue(base2.tzinfo is None) | |
self.assertTrue(base2.tzname() is None) | |
# Ensure we can add one. | |
base3 = base2.replace(tzinfo=z100) | |
self.assertEqual(base, base3) | |
self.assertTrue(base.tzinfo is base3.tzinfo) | |
# Out of bounds. | |
base = cls(1) | |
self.assertRaises(ValueError, base.replace, hour=24) | |
self.assertRaises(ValueError, base.replace, minute=-1) | |
self.assertRaises(ValueError, base.replace, second=100) | |
self.assertRaises(ValueError, base.replace, microsecond=1000000) | |
def test_mixed_compare(self): | |
t1 = time(1, 2, 3) | |
t2 = time(1, 2, 3) | |
self.assertEqual(t1, t2) | |
t2 = t2.replace(tzinfo=None) | |
self.assertEqual(t1, t2) | |
t2 = t2.replace(tzinfo=FixedOffset(None, "")) | |
self.assertEqual(t1, t2) | |
t2 = t2.replace(tzinfo=FixedOffset(0, "")) | |
self.assertRaises(TypeError, lambda: t1 == t2) | |
# In time w/ identical tzinfo objects, utcoffset is ignored. | |
class Varies(tzinfo): | |
def __init__(self): | |
self.offset = timedelta(minutes=22) | |
def utcoffset(self, t): | |
self.offset += timedelta(minutes=1) | |
return self.offset | |
v = Varies() | |
t1 = t2.replace(tzinfo=v) | |
t2 = t2.replace(tzinfo=v) | |
self.assertEqual(t1.utcoffset(), timedelta(minutes=23)) | |
self.assertEqual(t2.utcoffset(), timedelta(minutes=24)) | |
self.assertEqual(t1, t2) | |
# But if they're not identical, it isn't ignored. | |
t2 = t2.replace(tzinfo=Varies()) | |
self.assertTrue(t1 < t2) # t1's offset counter still going up | |
def test_subclass_timetz(self): | |
class C(self.theclass): | |
theAnswer = 42 | |
def __new__(cls, *args, **kws): | |
temp = kws.copy() | |
extra = temp.pop('extra') | |
result = self.theclass.__new__(cls, *args, **temp) | |
result.extra = extra | |
return result | |
def newmeth(self, start): | |
return start + self.hour + self.second | |
args = 4, 5, 6, 500, FixedOffset(-300, "EST", 1) | |
dt1 = self.theclass(*args) | |
dt2 = C(*args, **{'extra': 7}) | |
self.assertEqual(dt2.__class__, C) | |
self.assertEqual(dt2.theAnswer, 42) | |
self.assertEqual(dt2.extra, 7) | |
self.assertEqual(dt1.utcoffset(), dt2.utcoffset()) | |
self.assertEqual(dt2.newmeth(-7), dt1.hour + dt1.second - 7) | |
# Testing datetime objects with a non-None tzinfo. | |
class TestDateTimeTZ(TestDateTime, TZInfoBase, unittest.TestCase): | |
theclass = datetime | |
def test_trivial(self): | |
dt = self.theclass(1, 2, 3, 4, 5, 6, 7) | |
self.assertEqual(dt.year, 1) | |
self.assertEqual(dt.month, 2) | |
self.assertEqual(dt.day, 3) | |
self.assertEqual(dt.hour, 4) | |
self.assertEqual(dt.minute, 5) | |
self.assertEqual(dt.second, 6) | |
self.assertEqual(dt.microsecond, 7) | |
self.assertEqual(dt.tzinfo, None) | |
def test_even_more_compare(self): | |
# The test_compare() and test_more_compare() inherited from TestDate | |
# and TestDateTime covered non-tzinfo cases. | |
# Smallest possible after UTC adjustment. | |
t1 = self.theclass(1, 1, 1, tzinfo=FixedOffset(1439, "")) | |
# Largest possible after UTC adjustment. | |
t2 = self.theclass(MAXYEAR, 12, 31, 23, 59, 59, 999999, | |
tzinfo=FixedOffset(-1439, "")) | |
# Make sure those compare correctly, and w/o overflow. | |
self.assertTrue(t1 < t2) | |
self.assertTrue(t1 != t2) | |
self.assertTrue(t2 > t1) | |
self.assertTrue(t1 == t1) | |
self.assertTrue(t2 == t2) | |
# Equal afer adjustment. | |
t1 = self.theclass(1, 12, 31, 23, 59, tzinfo=FixedOffset(1, "")) | |
t2 = self.theclass(2, 1, 1, 3, 13, tzinfo=FixedOffset(3*60+13+2, "")) | |
self.assertEqual(t1, t2) | |
# Change t1 not to subtract a minute, and t1 should be larger. | |
t1 = self.theclass(1, 12, 31, 23, 59, tzinfo=FixedOffset(0, "")) | |
self.assertTrue(t1 > t2) | |
# Change t1 to subtract 2 minutes, and t1 should be smaller. | |
t1 = self.theclass(1, 12, 31, 23, 59, tzinfo=FixedOffset(2, "")) | |
self.assertTrue(t1 < t2) | |
# Back to the original t1, but make seconds resolve it. | |
t1 = self.theclass(1, 12, 31, 23, 59, tzinfo=FixedOffset(1, ""), | |
second=1) | |
self.assertTrue(t1 > t2) | |
# Likewise, but make microseconds resolve it. | |
t1 = self.theclass(1, 12, 31, 23, 59, tzinfo=FixedOffset(1, ""), | |
microsecond=1) | |
self.assertTrue(t1 > t2) | |
# Make t2 naive and it should fail. | |
t2 = self.theclass.min | |
self.assertRaises(TypeError, lambda: t1 == t2) | |
self.assertEqual(t2, t2) | |
# It's also naive if it has tzinfo but tzinfo.utcoffset() is None. | |
class Naive(tzinfo): | |
def utcoffset(self, dt): return None | |
t2 = self.theclass(5, 6, 7, tzinfo=Naive()) | |
self.assertRaises(TypeError, lambda: t1 == t2) | |
self.assertEqual(t2, t2) | |
# OTOH, it's OK to compare two of these mixing the two ways of being | |
# naive. | |
t1 = self.theclass(5, 6, 7) | |
self.assertEqual(t1, t2) | |
# Try a bogus uctoffset. | |
class Bogus(tzinfo): | |
def utcoffset(self, dt): | |
return timedelta(minutes=1440) # out of bounds | |
t1 = self.theclass(2, 2, 2, tzinfo=Bogus()) | |
t2 = self.theclass(2, 2, 2, tzinfo=FixedOffset(0, "")) | |
self.assertRaises(ValueError, lambda: t1 == t2) | |
def test_pickling(self): | |
# Try one without a tzinfo. | |
args = 6, 7, 23, 20, 59, 1, 64**2 | |
orig = self.theclass(*args) | |
for pickler, unpickler, proto in pickle_choices: | |
green = pickler.dumps(orig, proto) | |
derived = unpickler.loads(green) | |
self.assertEqual(orig, derived) | |
# Try one with a tzinfo. | |
tinfo = PicklableFixedOffset(-300, 'cookie') | |
orig = self.theclass(*args, **{'tzinfo': tinfo}) | |
derived = self.theclass(1, 1, 1, tzinfo=FixedOffset(0, "", 0)) | |
for pickler, unpickler, proto in pickle_choices: | |
green = pickler.dumps(orig, proto) | |
derived = unpickler.loads(green) | |
self.assertEqual(orig, derived) | |
self.assertIsInstance(derived.tzinfo, PicklableFixedOffset) | |
self.assertEqual(derived.utcoffset(), timedelta(minutes=-300)) | |
self.assertEqual(derived.tzname(), 'cookie') | |
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_zones(self): | |
est = FixedOffset(-300, "EST") | |
utc = FixedOffset(0, "UTC") | |
met = FixedOffset(60, "MET") | |
t1 = datetime(2002, 3, 19, 7, 47, tzinfo=est) | |
t2 = datetime(2002, 3, 19, 12, 47, tzinfo=utc) | |
t3 = datetime(2002, 3, 19, 13, 47, tzinfo=met) | |
self.assertEqual(t1.tzinfo, est) | |
self.assertEqual(t2.tzinfo, utc) | |
self.assertEqual(t3.tzinfo, met) | |
self.assertEqual(t1.utcoffset(), timedelta(minutes=-300)) | |
self.assertEqual(t2.utcoffset(), timedelta(minutes=0)) | |
self.assertEqual(t3.utcoffset(), timedelta(minutes=60)) | |
self.assertEqual(t1.tzname(), "EST") | |
self.assertEqual(t2.tzname(), "UTC") | |
self.assertEqual(t3.tzname(), "MET") | |
self.assertEqual(hash(t1), hash(t2)) | |
self.assertEqual(hash(t1), hash(t3)) | |
self.assertEqual(hash(t2), hash(t3)) | |
self.assertEqual(t1, t2) | |
self.assertEqual(t1, t3) | |
self.assertEqual(t2, t3) | |
self.assertEqual(str(t1), "2002-03-19 07:47:00-05:00") | |
self.assertEqual(str(t2), "2002-03-19 12:47:00+00:00") | |
self.assertEqual(str(t3), "2002-03-19 13:47:00+01:00") | |
d = 'datetime.datetime(2002, 3, 19, ' | |
self.assertEqual(repr(t1), d + "7, 47, tzinfo=est)") | |
self.assertEqual(repr(t2), d + "12, 47, tzinfo=utc)") | |
self.assertEqual(repr(t3), d + "13, 47, tzinfo=met)") | |
def test_combine(self): | |
met = FixedOffset(60, "MET") | |
d = date(2002, 3, 4) | |
tz = time(18, 45, 3, 1234, tzinfo=met) | |
dt = datetime.combine(d, tz) | |
self.assertEqual(dt, datetime(2002, 3, 4, 18, 45, 3, 1234, | |
tzinfo=met)) | |
def test_extract(self): | |
met = FixedOffset(60, "MET") | |
dt = self.theclass(2002, 3, 4, 18, 45, 3, 1234, tzinfo=met) | |
self.assertEqual(dt.date(), date(2002, 3, 4)) | |
self.assertEqual(dt.time(), time(18, 45, 3, 1234)) | |
self.assertEqual(dt.timetz(), time(18, 45, 3, 1234, tzinfo=met)) | |
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)) | |
def test_tzinfo_now(self): | |
meth = self.theclass.now | |
# Ensure it doesn't require tzinfo (i.e., that this doesn't blow up). | |
base = meth() | |
# Try with and without naming the keyword. | |
off42 = FixedOffset(42, "42") | |
another = meth(off42) | |
again = meth(tz=off42) | |
self.assertTrue(another.tzinfo is again.tzinfo) | |
self.assertEqual(another.utcoffset(), timedelta(minutes=42)) | |
# Bad argument with and w/o naming the keyword. | |
self.assertRaises(TypeError, meth, 16) | |
self.assertRaises(TypeError, meth, tzinfo=16) | |
# Bad keyword name. | |
self.assertRaises(TypeError, meth, tinfo=off42) | |
# Too many args. | |
self.assertRaises(TypeError, meth, off42, off42) | |
# We don't know which time zone we're in, and don't have a tzinfo | |
# class to represent it, so seeing whether a tz argument actually | |
# does a conversion is tricky. | |
weirdtz = FixedOffset(timedelta(hours=15, minutes=58), "weirdtz", 0) | |
utc = FixedOffset(0, "utc", 0) | |
for dummy in range(3): | |
now = datetime.now(weirdtz) | |
self.assertTrue(now.tzinfo is weirdtz) | |
utcnow = datetime.utcnow().replace(tzinfo=utc) | |
now2 = utcnow.astimezone(weirdtz) | |
if abs(now - now2) < timedelta(seconds=30): | |
break | |
# Else the code is broken, or more than 30 seconds passed between | |
# calls; assuming the latter, just try again. | |
else: | |
# Three strikes and we're out. | |
self.fail("utcnow(), now(tz), or astimezone() may be broken") | |
def test_tzinfo_fromtimestamp(self): | |
import time | |
meth = self.theclass.fromtimestamp | |
ts = time.time() | |
# Ensure it doesn't require tzinfo (i.e., that this doesn't blow up). | |
base = meth(ts) | |
# Try with and without naming the keyword. | |
off42 = FixedOffset(42, "42") | |
another = meth(ts, off42) | |
again = meth(ts, tz=off42) | |
self.assertTrue(another.tzinfo is again.tzinfo) | |
self.assertEqual(another.utcoffset(), timedelta(minutes=42)) | |
# Bad argument with and w/o naming the keyword. | |
self.assertRaises(TypeError, meth, ts, 16) | |
self.assertRaises(TypeError, meth, ts, tzinfo=16) | |
# Bad keyword name. | |
self.assertRaises(TypeError, meth, ts, tinfo=off42) | |
# Too many args. | |
self.assertRaises(TypeError, meth, ts, off42, off42) | |
# Too few args. | |
self.assertRaises(TypeError, meth) | |
# Try to make sure tz= actually does some conversion. | |
timestamp = 1000000000 | |
utcdatetime = datetime.utcfromtimestamp(timestamp) | |
# In POSIX (epoch 1970), that's 2001-09-09 01:46:40 UTC, give or take. | |
# But on some flavor of Mac, it's nowhere near that. So we can't have | |
# any idea here what time that actually is, we can only test that | |
# relative changes match. | |
utcoffset = timedelta(hours=-15, minutes=39) # arbitrary, but not zero | |
tz = FixedOffset(utcoffset, "tz", 0) | |
expected = utcdatetime + utcoffset | |
got = datetime.fromtimestamp(timestamp, tz) | |
self.assertEqual(expected, got.replace(tzinfo=None)) | |
def test_tzinfo_utcnow(self): | |
meth = self.theclass.utcnow | |
# Ensure it doesn't require tzinfo (i.e., that this doesn't blow up). | |
base = meth() | |
# Try with and without naming the keyword; for whatever reason, | |
# utcnow() doesn't accept a tzinfo argument. | |
off42 = FixedOffset(42, "42") | |
self.assertRaises(TypeError, meth, off42) | |
self.assertRaises(TypeError, meth, tzinfo=off42) | |
def test_tzinfo_utcfromtimestamp(self): | |
import time | |
meth = self.theclass.utcfromtimestamp | |
ts = time.time() | |
# Ensure it doesn't require tzinfo (i.e., that this doesn't blow up). | |
base = meth(ts) | |
# Try with and without naming the keyword; for whatever reason, | |
# utcfromtimestamp() doesn't accept a tzinfo argument. | |
off42 = FixedOffset(42, "42") | |
self.assertRaises(TypeError, meth, ts, off42) | |
self.assertRaises(TypeError, meth, ts, tzinfo=off42) | |
def test_tzinfo_timetuple(self): | |
# TestDateTime tested most of this. datetime adds a twist to the | |
# DST flag. | |
class DST(tzinfo): | |
def __init__(self, dstvalue): | |
if isinstance(dstvalue, int): | |
dstvalue = timedelta(minutes=dstvalue) | |
self.dstvalue = dstvalue | |
def dst(self, dt): | |
return self.dstvalue | |
cls = self.theclass | |
for dstvalue, flag in (-33, 1), (33, 1), (0, 0), (None, -1): | |
d = cls(1, 1, 1, 10, 20, 30, 40, tzinfo=DST(dstvalue)) | |
t = d.timetuple() | |
self.assertEqual(1, t.tm_year) | |
self.assertEqual(1, t.tm_mon) | |
self.assertEqual(1, t.tm_mday) | |
self.assertEqual(10, t.tm_hour) | |
self.assertEqual(20, t.tm_min) | |
self.assertEqual(30, t.tm_sec) | |
self.assertEqual(0, t.tm_wday) | |
self.assertEqual(1, t.tm_yday) | |
self.assertEqual(flag, t.tm_isdst) | |
# dst() returns wrong type. | |
self.assertRaises(TypeError, cls(1, 1, 1, tzinfo=DST("x")).timetuple) | |
# dst() at the edge. | |
self.assertEqual(cls(1,1,1, tzinfo=DST(1439)).timetuple().tm_isdst, 1) | |
self.assertEqual(cls(1,1,1, tzinfo=DST(-1439)).timetuple().tm_isdst, 1) | |
# dst() out of range. | |
self.assertRaises(ValueError, cls(1,1,1, tzinfo=DST(1440)).timetuple) | |
self.assertRaises(ValueError, cls(1,1,1, tzinfo=DST(-1440)).timetuple) | |
def test_utctimetuple(self): | |
class DST(tzinfo): | |
def __init__(self, dstvalue): | |
if isinstance(dstvalue, int): | |
dstvalue = timedelta(minutes=dstvalue) | |
self.dstvalue = dstvalue | |
def dst(self, dt): | |
return self.dstvalue | |
cls = self.theclass | |
# This can't work: DST didn't implement utcoffset. | |
self.assertRaises(NotImplementedError, | |
cls(1, 1, 1, tzinfo=DST(0)).utcoffset) | |
class UOFS(DST): | |
def __init__(self, uofs, dofs=None): | |
DST.__init__(self, dofs) | |
self.uofs = timedelta(minutes=uofs) | |
def utcoffset(self, dt): | |
return self.uofs | |
# Ensure tm_isdst is 0 regardless of what dst() says: DST is never | |
# in effect for a UTC time. | |
for dstvalue in -33, 33, 0, None: | |
d = cls(1, 2, 3, 10, 20, 30, 40, tzinfo=UOFS(-53, dstvalue)) | |
t = d.utctimetuple() | |
self.assertEqual(d.year, t.tm_year) | |
self.assertEqual(d.month, t.tm_mon) | |
self.assertEqual(d.day, t.tm_mday) | |
self.assertEqual(11, t.tm_hour) # 20mm + 53mm = 1hn + 13mm | |
self.assertEqual(13, t.tm_min) | |
self.assertEqual(d.second, t.tm_sec) | |
self.assertEqual(d.weekday(), t.tm_wday) | |
self.assertEqual(d.toordinal() - date(1, 1, 1).toordinal() + 1, | |
t.tm_yday) | |
self.assertEqual(0, t.tm_isdst) | |
# At the edges, UTC adjustment can normalize into years out-of-range | |
# for a datetime object. Ensure that a correct timetuple is | |
# created anyway. | |
tiny = cls(MINYEAR, 1, 1, 0, 0, 37, tzinfo=UOFS(1439)) | |
# That goes back 1 minute less than a full day. | |
t = tiny.utctimetuple() | |
self.assertEqual(t.tm_year, MINYEAR-1) | |
self.assertEqual(t.tm_mon, 12) | |
self.assertEqual(t.tm_mday, 31) | |
self.assertEqual(t.tm_hour, 0) | |
self.assertEqual(t.tm_min, 1) | |
self.assertEqual(t.tm_sec, 37) | |
self.assertEqual(t.tm_yday, 366) # "year 0" is a leap year | |
self.assertEqual(t.tm_isdst, 0) | |
huge = cls(MAXYEAR, 12, 31, 23, 59, 37, 999999, tzinfo=UOFS(-1439)) | |
# That goes forward 1 minute less than a full day. | |
t = huge.utctimetuple() | |
self.assertEqual(t.tm_year, MAXYEAR+1) | |
self.assertEqual(t.tm_mon, 1) | |
self.assertEqual(t.tm_mday, 1) | |
self.assertEqual(t.tm_hour, 23) | |
self.assertEqual(t.tm_min, 58) | |
self.assertEqual(t.tm_sec, 37) | |
self.assertEqual(t.tm_yday, 1) | |
self.assertEqual(t.tm_isdst, 0) | |
def test_tzinfo_isoformat(self): | |
zero = FixedOffset(0, "+00:00") | |
plus = FixedOffset(220, "+03:40") | |
minus = FixedOffset(-231, "-03:51") | |
unknown = FixedOffset(None, "") | |
cls = self.theclass | |
datestr = '0001-02-03' | |
for ofs in None, zero, plus, minus, unknown: | |
for us in 0, 987001: | |
d = cls(1, 2, 3, 4, 5, 59, us, tzinfo=ofs) | |
timestr = '04:05:59' + (us and '.987001' or '') | |
ofsstr = ofs is not None and d.tzname() or '' | |
tailstr = timestr + ofsstr | |
iso = d.isoformat() | |
self.assertEqual(iso, datestr + 'T' + tailstr) | |
self.assertEqual(iso, d.isoformat('T')) | |
self.assertEqual(d.isoformat('k'), datestr + 'k' + tailstr) | |
self.assertEqual(str(d), datestr + ' ' + tailstr) | |
def test_replace(self): | |
cls = self.theclass | |
z100 = FixedOffset(100, "+100") | |
zm200 = FixedOffset(timedelta(minutes=-200), "-200") | |
args = [1, 2, 3, 4, 5, 6, 7, z100] | |
base = cls(*args) | |
self.assertEqual(base, base.replace()) | |
i = 0 | |
for name, newval in (("year", 2), | |
("month", 3), | |
("day", 4), | |
("hour", 5), | |
("minute", 6), | |
("second", 7), | |
("microsecond", 8), | |
("tzinfo", zm200)): | |
newargs = args[:] | |
newargs[i] = newval | |
expected = cls(*newargs) | |
got = base.replace(**{name: newval}) | |
self.assertEqual(expected, got) | |
i += 1 | |
# Ensure we can get rid of a tzinfo. | |
self.assertEqual(base.tzname(), "+100") | |
base2 = base.replace(tzinfo=None) | |
self.assertTrue(base2.tzinfo is None) | |
self.assertTrue(base2.tzname() is None) | |
# Ensure we can add one. | |
base3 = base2.replace(tzinfo=z100) | |
self.assertEqual(base, base3) | |
self.assertTrue(base.tzinfo is base3.tzinfo) | |
# Out of bounds. | |
base = cls(2000, 2, 29) | |
self.assertRaises(ValueError, base.replace, year=2001) | |
def test_more_astimezone(self): | |
# The inherited test_astimezone covered some trivial and error cases. | |
fnone = FixedOffset(None, "None") | |
f44m = FixedOffset(44, "44") | |
fm5h = FixedOffset(-timedelta(hours=5), "m300") | |
dt = self.theclass.now(tz=f44m) | |
self.assertTrue(dt.tzinfo is f44m) | |
# Replacing with degenerate tzinfo raises an exception. | |
self.assertRaises(ValueError, dt.astimezone, fnone) | |
# Ditto with None tz. | |
self.assertRaises(TypeError, dt.astimezone, None) | |
# Replacing with same tzinfo makes no change. | |
x = dt.astimezone(dt.tzinfo) | |
self.assertTrue(x.tzinfo is f44m) | |
self.assertEqual(x.date(), dt.date()) | |
self.assertEqual(x.time(), dt.time()) | |
# Replacing with different tzinfo does adjust. | |
got = dt.astimezone(fm5h) | |
self.assertTrue(got.tzinfo is fm5h) | |
self.assertEqual(got.utcoffset(), timedelta(hours=-5)) | |
expected = dt - dt.utcoffset() # in effect, convert to UTC | |
expected += fm5h.utcoffset(dt) # and from there to local time | |
expected = expected.replace(tzinfo=fm5h) # and attach new tzinfo | |
self.assertEqual(got.date(), expected.date()) | |
self.assertEqual(got.time(), expected.time()) | |
self.assertEqual(got.timetz(), expected.timetz()) | |
self.assertTrue(got.tzinfo is expected.tzinfo) | |
self.assertEqual(got, expected) | |
def test_aware_subtract(self): | |
cls = self.theclass | |
# Ensure that utcoffset() is ignored when the operands have the | |
# same tzinfo member. | |
class OperandDependentOffset(tzinfo): | |
def utcoffset(self, t): | |
if t.minute < 10: | |
# d0 and d1 equal after adjustment | |
return timedelta(minutes=t.minute) | |
else: | |
# d2 off in the weeds | |
return timedelta(minutes=59) | |
base = cls(8, 9, 10, 11, 12, 13, 14, tzinfo=OperandDependentOffset()) | |
d0 = base.replace(minute=3) | |
d1 = base.replace(minute=9) | |
d2 = base.replace(minute=11) | |
for x in d0, d1, d2: | |
for y in d0, d1, d2: | |
got = x - y | |
expected = timedelta(minutes=x.minute - y.minute) | |
self.assertEqual(got, expected) | |
# OTOH, if the tzinfo members are distinct, utcoffsets aren't | |
# ignored. | |
base = cls(8, 9, 10, 11, 12, 13, 14) | |
d0 = base.replace(minute=3, tzinfo=OperandDependentOffset()) | |
d1 = base.replace(minute=9, tzinfo=OperandDependentOffset()) | |
d2 = base.replace(minute=11, tzinfo=OperandDependentOffset()) | |
for x in d0, d1, d2: | |
for y in d0, d1, d2: | |
got = x - y | |
if (x is d0 or x is d1) and (y is d0 or y is d1): | |
expected = timedelta(0) | |
elif x is y is d2: | |
expected = timedelta(0) | |
elif x is d2: | |
expected = timedelta(minutes=(11-59)-0) | |
else: | |
assert y is d2 | |
expected = timedelta(minutes=0-(11-59)) | |
self.assertEqual(got, expected) | |
def test_mixed_compare(self): | |
t1 = datetime(1, 2, 3, 4, 5, 6, 7) | |
t2 = datetime(1, 2, 3, 4, 5, 6, 7) | |
self.assertEqual(t1, t2) | |
t2 = t2.replace(tzinfo=None) | |
self.assertEqual(t1, t2) | |
t2 = t2.replace(tzinfo=FixedOffset(None, "")) | |
self.assertEqual(t1, t2) | |
t2 = t2.replace(tzinfo=FixedOffset(0, "")) | |
self.assertRaises(TypeError, lambda: t1 == t2) | |
# In datetime w/ identical tzinfo objects, utcoffset is ignored. | |
class Varies(tzinfo): | |
def __init__(self): | |
self.offset = timedelta(minutes=22) | |
def utcoffset(self, t): | |
self.offset += timedelta(minutes=1) | |
return self.offset | |
v = Varies() | |
t1 = t2.replace(tzinfo=v) | |
t2 = t2.replace(tzinfo=v) | |
self.assertEqual(t1.utcoffset(), timedelta(minutes=23)) | |
self.assertEqual(t2.utcoffset(), timedelta(minutes=24)) | |
self.assertEqual(t1, t2) | |
# But if they're not identical, it isn't ignored. | |
t2 = t2.replace(tzinfo=Varies()) | |
self.assertTrue(t1 < t2) # t1's offset counter still going up | |
def test_subclass_datetimetz(self): | |
class C(self.theclass): | |
theAnswer = 42 | |
def __new__(cls, *args, **kws): | |
temp = kws.copy() | |
extra = temp.pop('extra') | |
result = self.theclass.__new__(cls, *args, **temp) | |
result.extra = extra | |
return result | |
def newmeth(self, start): | |
return start + self.hour + self.year | |
args = 2002, 12, 31, 4, 5, 6, 500, FixedOffset(-300, "EST", 1) | |
dt1 = self.theclass(*args) | |
dt2 = C(*args, **{'extra': 7}) | |
self.assertEqual(dt2.__class__, C) | |
self.assertEqual(dt2.theAnswer, 42) | |
self.assertEqual(dt2.extra, 7) | |
self.assertEqual(dt1.utcoffset(), dt2.utcoffset()) | |
self.assertEqual(dt2.newmeth(-7), dt1.hour + dt1.year - 7) | |
# Pain to set up DST-aware tzinfo classes. | |
def first_sunday_on_or_after(dt): | |
days_to_go = 6 - dt.weekday() | |
if days_to_go: | |
dt += timedelta(days_to_go) | |
return dt | |
ZERO = timedelta(0) | |
HOUR = timedelta(hours=1) | |
DAY = timedelta(days=1) | |
# In the US, DST starts at 2am (standard time) on the first Sunday in April. | |
DSTSTART = datetime(1, 4, 1, 2) | |
# and ends at 2am (DST time; 1am standard time) on the last Sunday of Oct, | |
# which is the first Sunday on or after Oct 25. Because we view 1:MM as | |
# being standard time on that day, there is no spelling in local time of | |
# the last hour of DST (that's 1:MM DST, but 1:MM is taken as standard time). | |
DSTEND = datetime(1, 10, 25, 1) | |
class USTimeZone(tzinfo): | |
def __init__(self, hours, reprname, stdname, dstname): | |
self.stdoffset = timedelta(hours=hours) | |
self.reprname = reprname | |
self.stdname = stdname | |
self.dstname = dstname | |
def __repr__(self): | |
return self.reprname | |
def tzname(self, dt): | |
if self.dst(dt): | |
return self.dstname | |
else: | |
return self.stdname | |
def utcoffset(self, dt): | |
return self.stdoffset + self.dst(dt) | |
def dst(self, dt): | |
if dt is None or dt.tzinfo is None: | |
# An exception instead may be sensible here, in one or more of | |
# the cases. | |
return ZERO | |
assert dt.tzinfo is self | |
# Find first Sunday in April. | |
start = first_sunday_on_or_after(DSTSTART.replace(year=dt.year)) | |
assert start.weekday() == 6 and start.month == 4 and start.day <= 7 | |
# Find last Sunday in October. | |
end = first_sunday_on_or_after(DSTEND.replace(year=dt.year)) | |
assert end.weekday() == 6 and end.month == 10 and end.day >= 25 | |
# Can't compare naive to aware objects, so strip the timezone from | |
# dt first. | |
if start <= dt.replace(tzinfo=None) < end: | |
return HOUR | |
else: | |
return ZERO | |
Eastern = USTimeZone(-5, "Eastern", "EST", "EDT") | |
Central = USTimeZone(-6, "Central", "CST", "CDT") | |
Mountain = USTimeZone(-7, "Mountain", "MST", "MDT") | |
Pacific = USTimeZone(-8, "Pacific", "PST", "PDT") | |
utc_real = FixedOffset(0, "UTC", 0) | |
# For better test coverage, we want another flavor of UTC that's west of | |
# the Eastern and Pacific timezones. | |
utc_fake = FixedOffset(-12*60, "UTCfake", 0) | |
class TestTimezoneConversions(unittest.TestCase): | |
# The DST switch times for 2002, in std time. | |
dston = datetime(2002, 4, 7, 2) | |
dstoff = datetime(2002, 10, 27, 1) | |
theclass = datetime | |
# Check a time that's inside DST. | |
def checkinside(self, dt, tz, utc, dston, dstoff): | |
self.assertEqual(dt.dst(), HOUR) | |
# Conversion to our own timezone is always an identity. | |
self.assertEqual(dt.astimezone(tz), dt) | |
asutc = dt.astimezone(utc) | |
there_and_back = asutc.astimezone(tz) | |
# Conversion to UTC and back isn't always an identity here, | |
# because there are redundant spellings (in local time) of | |
# UTC time when DST begins: the clock jumps from 1:59:59 | |
# to 3:00:00, and a local time of 2:MM:SS doesn't really | |
# make sense then. The classes above treat 2:MM:SS as | |
# daylight time then (it's "after 2am"), really an alias | |
# for 1:MM:SS standard time. The latter form is what | |
# conversion back from UTC produces. | |
if dt.date() == dston.date() and dt.hour == 2: | |
# We're in the redundant hour, and coming back from | |
# UTC gives the 1:MM:SS standard-time spelling. | |
self.assertEqual(there_and_back + HOUR, dt) | |
# Although during was considered to be in daylight | |
# time, there_and_back is not. | |
self.assertEqual(there_and_back.dst(), ZERO) | |
# They're the same times in UTC. | |
self.assertEqual(there_and_back.astimezone(utc), | |
dt.astimezone(utc)) | |
else: | |
# We're not in the redundant hour. | |
self.assertEqual(dt, there_and_back) | |
# Because we have a redundant spelling when DST begins, there is | |
# (unfortunately) an hour when DST ends that can't be spelled at all in | |
# local time. When DST ends, the clock jumps from 1:59 back to 1:00 | |
# again. The hour 1:MM DST has no spelling then: 1:MM is taken to be | |
# standard time. 1:MM DST == 0:MM EST, but 0:MM is taken to be | |
# daylight time. The hour 1:MM daylight == 0:MM standard can't be | |
# expressed in local time. Nevertheless, we want conversion back | |
# from UTC to mimic the local clock's "repeat an hour" behavior. | |
nexthour_utc = asutc + HOUR | |
nexthour_tz = nexthour_utc.astimezone(tz) | |
if dt.date() == dstoff.date() and dt.hour == 0: | |
# We're in the hour before the last DST hour. The last DST hour | |
# is ineffable. We want the conversion back to repeat 1:MM. | |
self.assertEqual(nexthour_tz, dt.replace(hour=1)) | |
nexthour_utc += HOUR | |
nexthour_tz = nexthour_utc.astimezone(tz) | |
self.assertEqual(nexthour_tz, dt.replace(hour=1)) | |
else: | |
self.assertEqual(nexthour_tz - dt, HOUR) | |
# Check a time that's outside DST. | |
def checkoutside(self, dt, tz, utc): | |
self.assertEqual(dt.dst(), ZERO) | |
# Conversion to our own timezone is always an identity. | |
self.assertEqual(dt.astimezone(tz), dt) | |
# Converting to UTC and back is an identity too. | |
asutc = dt.astimezone(utc) | |
there_and_back = asutc.astimezone(tz) | |
self.assertEqual(dt, there_and_back) | |
def convert_between_tz_and_utc(self, tz, utc): | |
dston = self.dston.replace(tzinfo=tz) | |
# Because 1:MM on the day DST ends is taken as being standard time, | |
# there is no spelling in tz for the last hour of daylight time. | |
# For purposes of the test, the last hour of DST is 0:MM, which is | |
# taken as being daylight time (and 1:MM is taken as being standard | |
# time). | |
dstoff = self.dstoff.replace(tzinfo=tz) | |
for delta in (timedelta(weeks=13), | |
DAY, | |
HOUR, | |
timedelta(minutes=1), | |
timedelta(microseconds=1)): | |
self.checkinside(dston, tz, utc, dston, dstoff) | |
for during in dston + delta, dstoff - delta: | |
self.checkinside(during, tz, utc, dston, dstoff) | |
self.checkoutside(dstoff, tz, utc) | |
for outside in dston - delta, dstoff + delta: | |
self.checkoutside(outside, tz, utc) | |
def test_easy(self): | |
# Despite the name of this test, the endcases are excruciating. | |
self.convert_between_tz_and_utc(Eastern, utc_real) | |
self.convert_between_tz_and_utc(Pacific, utc_real) | |
self.convert_between_tz_and_utc(Eastern, utc_fake) | |
self.convert_between_tz_and_utc(Pacific, utc_fake) | |
# The next is really dancing near the edge. It works because | |
# Pacific and Eastern are far enough apart that their "problem | |
# hours" don't overlap. | |
self.convert_between_tz_and_utc(Eastern, Pacific) | |
self.convert_between_tz_and_utc(Pacific, Eastern) | |
# OTOH, these fail! Don't enable them. The difficulty is that | |
# the edge case tests assume that every hour is representable in | |
# the "utc" class. This is always true for a fixed-offset tzinfo | |
# class (lke utc_real and utc_fake), but not for Eastern or Central. | |
# For these adjacent DST-aware time zones, the range of time offsets | |
# tested ends up creating hours in the one that aren't representable | |
# in the other. For the same reason, we would see failures in the | |
# Eastern vs Pacific tests too if we added 3*HOUR to the list of | |
# offset deltas in convert_between_tz_and_utc(). | |
# | |
# self.convert_between_tz_and_utc(Eastern, Central) # can't work | |
# self.convert_between_tz_and_utc(Central, Eastern) # can't work | |
def test_tricky(self): | |
# 22:00 on day before daylight starts. | |
fourback = self.dston - timedelta(hours=4) | |
ninewest = FixedOffset(-9*60, "-0900", 0) | |
fourback = fourback.replace(tzinfo=ninewest) | |
# 22:00-0900 is 7:00 UTC == 2:00 EST == 3:00 DST. Since it's "after | |
# 2", we should get the 3 spelling. | |
# If we plug 22:00 the day before into Eastern, it "looks like std | |
# time", so its offset is returned as -5, and -5 - -9 = 4. Adding 4 | |
# to 22:00 lands on 2:00, which makes no sense in local time (the | |
# local clock jumps from 1 to 3). The point here is to make sure we | |
# get the 3 spelling. | |
expected = self.dston.replace(hour=3) | |
got = fourback.astimezone(Eastern).replace(tzinfo=None) | |
self.assertEqual(expected, got) | |
# Similar, but map to 6:00 UTC == 1:00 EST == 2:00 DST. In that | |
# case we want the 1:00 spelling. | |
sixutc = self.dston.replace(hour=6, tzinfo=utc_real) | |
# Now 6:00 "looks like daylight", so the offset wrt Eastern is -4, | |
# and adding -4-0 == -4 gives the 2:00 spelling. We want the 1:00 EST | |
# spelling. | |
expected = self.dston.replace(hour=1) | |
got = sixutc.astimezone(Eastern).replace(tzinfo=None) | |
self.assertEqual(expected, got) | |
# Now on the day DST ends, we want "repeat an hour" behavior. | |
# UTC 4:MM 5:MM 6:MM 7:MM checking these | |
# EST 23:MM 0:MM 1:MM 2:MM | |
# EDT 0:MM 1:MM 2:MM 3:MM | |
# wall 0:MM 1:MM 1:MM 2:MM against these | |
for utc in utc_real, utc_fake: | |
for tz in Eastern, Pacific: | |
first_std_hour = self.dstoff - timedelta(hours=2) # 23:MM | |
# Convert that to UTC. | |
first_std_hour -= tz.utcoffset(None) | |
# Adjust for possibly fake UTC. | |
asutc = first_std_hour + utc.utcoffset(None) | |
# First UTC hour to convert; this is 4:00 when utc=utc_real & | |
# tz=Eastern. | |
asutcbase = asutc.replace(tzinfo=utc) | |
for tzhour in (0, 1, 1, 2): | |
expectedbase = self.dstoff.replace(hour=tzhour) | |
for minute in 0, 30, 59: | |
expected = expectedbase.replace(minute=minute) | |
asutc = asutcbase.replace(minute=minute) | |
astz = asutc.astimezone(tz) | |
self.assertEqual(astz.replace(tzinfo=None), expected) | |
asutcbase += HOUR | |
def test_bogus_dst(self): | |
class ok(tzinfo): | |
def utcoffset(self, dt): return HOUR | |
def dst(self, dt): return HOUR | |
now = self.theclass.now().replace(tzinfo=utc_real) | |
# Doesn't blow up. | |
now.astimezone(ok()) | |
# Does blow up. | |
class notok(ok): | |
def dst(self, dt): return None | |
self.assertRaises(ValueError, now.astimezone, notok()) | |
def test_fromutc(self): | |
self.assertRaises(TypeError, Eastern.fromutc) # not enough args | |
now = datetime.utcnow().replace(tzinfo=utc_real) | |
self.assertRaises(ValueError, Eastern.fromutc, now) # wrong tzinfo | |
now = now.replace(tzinfo=Eastern) # insert correct tzinfo | |
enow = Eastern.fromutc(now) # doesn't blow up | |
self.assertEqual(enow.tzinfo, Eastern) # has right tzinfo member | |
self.assertRaises(TypeError, Eastern.fromutc, now, now) # too many args | |
self.assertRaises(TypeError, Eastern.fromutc, date.today()) # wrong type | |
# Always converts UTC to standard time. | |
class FauxUSTimeZone(USTimeZone): | |
def fromutc(self, dt): | |
return dt + self.stdoffset | |
FEastern = FauxUSTimeZone(-5, "FEastern", "FEST", "FEDT") | |
# UTC 4:MM 5:MM 6:MM 7:MM 8:MM 9:MM | |
# EST 23:MM 0:MM 1:MM 2:MM 3:MM 4:MM | |
# EDT 0:MM 1:MM 2:MM 3:MM 4:MM 5:MM | |
# Check around DST start. | |
start = self.dston.replace(hour=4, tzinfo=Eastern) | |
fstart = start.replace(tzinfo=FEastern) | |
for wall in 23, 0, 1, 3, 4, 5: | |
expected = start.replace(hour=wall) | |
if wall == 23: | |
expected -= timedelta(days=1) | |
got = Eastern.fromutc(start) | |
self.assertEqual(expected, got) | |
expected = fstart + FEastern.stdoffset | |
got = FEastern.fromutc(fstart) | |
self.assertEqual(expected, got) | |
# Ensure astimezone() calls fromutc() too. | |
got = fstart.replace(tzinfo=utc_real).astimezone(FEastern) | |
self.assertEqual(expected, got) | |
start += HOUR | |
fstart += HOUR | |
# Check around DST end. | |
start = self.dstoff.replace(hour=4, tzinfo=Eastern) | |
fstart = start.replace(tzinfo=FEastern) | |
for wall in 0, 1, 1, 2, 3, 4: | |
expected = start.replace(hour=wall) | |
got = Eastern.fromutc(start) | |
self.assertEqual(expected, got) | |
expected = fstart + FEastern.stdoffset | |
got = FEastern.fromutc(fstart) | |
self.assertEqual(expected, got) | |
# Ensure astimezone() calls fromutc() too. | |
got = fstart.replace(tzinfo=utc_real).astimezone(FEastern) | |
self.assertEqual(expected, got) | |
start += HOUR | |
fstart += HOUR | |
############################################################################# | |
# oddballs | |
class Oddballs(unittest.TestCase): | |
def test_bug_1028306(self): | |
# Trying to compare a date to a datetime should act like a mixed- | |
# type comparison, despite that datetime is a subclass of date. | |
as_date = date.today() | |
as_datetime = datetime.combine(as_date, time()) | |
self.assertTrue(as_date != as_datetime) | |
self.assertTrue(as_datetime != as_date) | |
self.assertTrue(not as_date == as_datetime) | |
self.assertTrue(not as_datetime == as_date) | |
self.assertRaises(TypeError, lambda: as_date < as_datetime) | |
self.assertRaises(TypeError, lambda: as_datetime < as_date) | |
self.assertRaises(TypeError, lambda: as_date <= as_datetime) | |
self.assertRaises(TypeError, lambda: as_datetime <= as_date) | |
self.assertRaises(TypeError, lambda: as_date > as_datetime) | |
self.assertRaises(TypeError, lambda: as_datetime > as_date) | |
self.assertRaises(TypeError, lambda: as_date >= as_datetime) | |
self.assertRaises(TypeError, lambda: as_datetime >= as_date) | |
# Neverthelss, comparison should work with the base-class (date) | |
# projection if use of a date method is forced. | |
self.assertTrue(as_date.__eq__(as_datetime)) | |
different_day = (as_date.day + 1) % 20 + 1 | |
self.assertTrue(not as_date.__eq__(as_datetime.replace(day= | |
different_day))) | |
# And date should compare with other subclasses of date. If a | |
# subclass wants to stop this, it's up to the subclass to do so. | |
date_sc = SubclassDate(as_date.year, as_date.month, as_date.day) | |
self.assertEqual(as_date, date_sc) | |
self.assertEqual(date_sc, as_date) | |
# Ditto for datetimes. | |
datetime_sc = SubclassDatetime(as_datetime.year, as_datetime.month, | |
as_date.day, 0, 0, 0) | |
self.assertEqual(as_datetime, datetime_sc) | |
self.assertEqual(datetime_sc, as_datetime) | |
def test_main(): | |
test_support.run_unittest(__name__) | |
if __name__ == "__main__": | |
test_main() |