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
python类combine()的实例源码
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
test_timeseries.py 文件源码
项目：PyDataLondon29-EmbarrassinglyParallelDAWithAWSLambda
作者: SignalMedia
项目源码
文件源码
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def test_NaT_methods(self):
# GH 9513
raise_methods = ['astimezone', 'combine', 'ctime', 'dst',
'fromordinal', 'fromtimestamp', 'isocalendar',
'strftime', 'strptime', 'time', 'timestamp',
'timetuple', 'timetz', 'toordinal', 'tzname',
'utcfromtimestamp', 'utcnow', 'utcoffset',
'utctimetuple']
nat_methods = ['date', 'now', 'replace', 'to_datetime', 'today']
nan_methods = ['weekday', 'isoweekday']
for method in raise_methods:
if hasattr(NaT, method):
self.assertRaises(ValueError, getattr(NaT, method))
for method in nan_methods:
if hasattr(NaT, method):
self.assertTrue(np.isnan(getattr(NaT, method)()))
for method in nat_methods:
if hasattr(NaT, method):
self.assertIs(getattr(NaT, method)(), NaT)
# GH 12300
self.assertEqual(NaT.isoformat(), 'NaT')
test_timeseries.py 文件源码
项目：PyDataLondon29-EmbarrassinglyParallelDAWithAWSLambda
作者: SignalMedia
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def test_class_ops_pytz(self):
tm._skip_if_no_pytz()
from pytz import timezone
def compare(x, y):
self.assertEqual(int(Timestamp(x).value / 1e9),
int(Timestamp(y).value / 1e9))
compare(Timestamp.now(), datetime.now())
compare(Timestamp.now('UTC'), datetime.now(timezone('UTC')))
compare(Timestamp.utcnow(), datetime.utcnow())
compare(Timestamp.today(), datetime.today())
current_time = calendar.timegm(datetime.now().utctimetuple())
compare(Timestamp.utcfromtimestamp(current_time),
datetime.utcfromtimestamp(current_time))
compare(Timestamp.fromtimestamp(current_time),
datetime.fromtimestamp(current_time))
date_component = datetime.utcnow()
time_component = (date_component + timedelta(minutes=10)).time()
compare(Timestamp.combine(date_component, time_component),
datetime.combine(date_component, time_component))
test_timeseries.py 文件源码
项目：PyDataLondon29-EmbarrassinglyParallelDAWithAWSLambda
作者: SignalMedia
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def test_class_ops_dateutil(self):
tm._skip_if_no_dateutil()
from dateutil.tz import tzutc
def compare(x, y):
self.assertEqual(int(np.round(Timestamp(x).value / 1e9)),
int(np.round(Timestamp(y).value / 1e9)))
compare(Timestamp.now(), datetime.now())
compare(Timestamp.now('UTC'), datetime.now(tzutc()))
compare(Timestamp.utcnow(), datetime.utcnow())
compare(Timestamp.today(), datetime.today())
current_time = calendar.timegm(datetime.now().utctimetuple())
compare(Timestamp.utcfromtimestamp(current_time),
datetime.utcfromtimestamp(current_time))
compare(Timestamp.fromtimestamp(current_time),
datetime.fromtimestamp(current_time))
date_component = datetime.utcnow()
time_component = (date_component + timedelta(minutes=10)).time()
compare(Timestamp.combine(date_component, time_component),
datetime.combine(date_component, time_component))
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_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 _CombineDateAndTime(date, time, tzinfo):
"""Creates a datetime object from date and time objects.
This is similar to the datetime.combine method, but its timezone
calculations are designed to work with pytz.
Arguments:
date: a datetime.date object, in any timezone
time: a datetime.time object, in any timezone
tzinfo: a pytz timezone object, or None
Returns:
a datetime.datetime object, in the timezone 'tzinfo'
"""
naive_result = datetime.datetime(
date.year, date.month, date.day, time.hour, time.minute, time.second)
if tzinfo is None:
return naive_result
try:
return tzinfo.localize(naive_result, is_dst=None)
except AmbiguousTimeError:
return min(tzinfo.localize(naive_result, is_dst=True),
tzinfo.localize(naive_result, is_dst=False))
except NonExistentTimeError:
while True:
naive_result += datetime.timedelta(minutes=1)
try:
return tzinfo.localize(naive_result, is_dst=None)
except NonExistentTimeError:
pass
def _CombineDateAndTime(date, time, tzinfo):
"""Creates a datetime object from date and time objects.
This is similar to the datetime.combine method, but its timezone
calculations are designed to work with pytz.
Arguments:
date: a datetime.date object, in any timezone
time: a datetime.time object, in any timezone
tzinfo: a pytz timezone object, or None
Returns:
a datetime.datetime object, in the timezone 'tzinfo'
"""
naive_result = datetime.datetime(
date.year, date.month, date.day, time.hour, time.minute, time.second)
if tzinfo is None:
return naive_result
try:
return tzinfo.localize(naive_result, is_dst=None)
except AmbiguousTimeError:
return min(tzinfo.localize(naive_result, is_dst=True),
tzinfo.localize(naive_result, is_dst=False))
except NonExistentTimeError:
while True:
naive_result += datetime.timedelta(minutes=1)
try:
return tzinfo.localize(naive_result, is_dst=None)
except NonExistentTimeError:
pass
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_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.assertFalse(as_date == as_datetime)
self.assertFalse(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)
# Nevertheless, 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.assertFalse(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_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_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.assertFalse(as_date == as_datetime)
self.assertFalse(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)
# Nevertheless, 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.assertFalse(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 _CombineDateAndTime(date, time, tzinfo):
"""Creates a datetime object from date and time objects.
This is similar to the datetime.combine method, but its timezone
calculations are designed to work with pytz.
Arguments:
date: a datetime.date object, in any timezone
time: a datetime.time object, in any timezone
tzinfo: a pytz timezone object, or None
Returns:
a datetime.datetime object, in the timezone 'tzinfo'
"""
naive_result = datetime.datetime(
date.year, date.month, date.day, time.hour, time.minute, time.second)
if tzinfo is None:
return naive_result
try:
return tzinfo.localize(naive_result, is_dst=None)
except AmbiguousTimeError:
return min(tzinfo.localize(naive_result, is_dst=True),
tzinfo.localize(naive_result, is_dst=False))
except NonExistentTimeError:
while True:
naive_result += datetime.timedelta(minutes=1)
try:
return tzinfo.localize(naive_result, is_dst=None)
except NonExistentTimeError:
pass
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_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.assertFalse(as_date == as_datetime)
self.assertFalse(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.assertFalse(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_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_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 _CombineDateAndTime(date, time, tzinfo):
"""Creates a datetime object from date and time objects.
This is similar to the datetime.combine method, but its timezone
calculations are designed to work with pytz.
Arguments:
date: a datetime.date object, in any timezone
time: a datetime.time object, in any timezone
tzinfo: a pytz timezone object, or None
Returns:
a datetime.datetime object, in the timezone 'tzinfo'
"""
naive_result = datetime.datetime(
date.year, date.month, date.day, time.hour, time.minute, time.second)
if tzinfo is None:
return naive_result
try:
return tzinfo.localize(naive_result, is_dst=None)
except AmbiguousTimeError:
return min(tzinfo.localize(naive_result, is_dst=True),
tzinfo.localize(naive_result, is_dst=False))
except NonExistentTimeError:
while True:
naive_result += datetime.timedelta(minutes=1)
try:
return tzinfo.localize(naive_result, is_dst=None)
except NonExistentTimeError:
pass
def _CombineDateAndTime(date, time, tzinfo):
"""Creates a datetime object from date and time objects.
This is similar to the datetime.combine method, but its timezone
calculations are designed to work with pytz.
Arguments:
date: a datetime.date object, in any timezone
time: a datetime.time object, in any timezone
tzinfo: a pytz timezone object, or None
Returns:
a datetime.datetime object, in the timezone 'tzinfo'
"""
naive_result = datetime.datetime(
date.year, date.month, date.day, time.hour, time.minute, time.second)
if tzinfo is None:
return naive_result
try:
return tzinfo.localize(naive_result, is_dst=None)
except AmbiguousTimeError:
return min(tzinfo.localize(naive_result, is_dst=True),
tzinfo.localize(naive_result, is_dst=False))
except NonExistentTimeError:
while True:
naive_result += datetime.timedelta(minutes=1)
try:
return tzinfo.localize(naive_result, is_dst=None)
except NonExistentTimeError:
pass
def test_tz_aware_arithmetic(self):
import random
now = self.theclass.now()
tz55 = FixedOffset(-330, "west 5:30")
timeaware = now.time().replace(tzinfo=tz55)
nowaware = self.theclass.combine(now.date(), timeaware)
self.assertIs(nowaware.tzinfo, tz55)
self.assertEqual(nowaware.timetz(), timeaware)
# Can't mix aware and non-aware.
self.assertRaises(TypeError, lambda: now - nowaware)
self.assertRaises(TypeError, lambda: nowaware - now)
# And adding datetime's doesn't make sense, aware or not.
self.assertRaises(TypeError, lambda: now + nowaware)
self.assertRaises(TypeError, lambda: nowaware + now)
self.assertRaises(TypeError, lambda: nowaware + nowaware)
# Subtracting should yield 0.
self.assertEqual(now - now, timedelta(0))
self.assertEqual(nowaware - nowaware, timedelta(0))
# Adding a delta should preserve tzinfo.
delta = timedelta(weeks=1, minutes=12, microseconds=5678)
nowawareplus = nowaware + delta
self.assertIs(nowaware.tzinfo, tz55)
nowawareplus2 = delta + nowaware
self.assertIs(nowawareplus2.tzinfo, tz55)
self.assertEqual(nowawareplus, nowawareplus2)
# that - delta should be what we started with, and that - what we
# started with should be delta.
diff = nowawareplus - delta
self.assertIs(diff.tzinfo, tz55)
self.assertEqual(nowaware, diff)
self.assertRaises(TypeError, lambda: delta - nowawareplus)
self.assertEqual(nowawareplus - nowaware, delta)
# Make up a random timezone.
tzr = FixedOffset(random.randrange(-1439, 1440), "randomtimezone")
# Attach it to nowawareplus.
nowawareplus = nowawareplus.replace(tzinfo=tzr)
self.assertIs(nowawareplus.tzinfo, tzr)
# Make sure the difference takes the timezone adjustments into account.
got = nowaware - nowawareplus
# Expected: (nowaware base - nowaware offset) -
# (nowawareplus base - nowawareplus offset) =
# (nowaware base - nowawareplus base) +
# (nowawareplus offset - nowaware offset) =
# -delta + nowawareplus offset - nowaware offset
expected = nowawareplus.utcoffset() - nowaware.utcoffset() - delta
self.assertEqual(got, expected)
# Try max possible difference.
min = self.theclass(1, 1, 1, tzinfo=FixedOffset(1439, "min"))
max = self.theclass(MAXYEAR, 12, 31, 23, 59, 59, 999999,
tzinfo=FixedOffset(-1439, "max"))
maxdiff = max - min
self.assertEqual(maxdiff, self.theclass.max - self.theclass.min +
timedelta(minutes=2*1439))
def test_tz_aware_arithmetic(self):
import random
now = self.theclass.now()
tz55 = FixedOffset(-330, "west 5:30")
timeaware = now.time().replace(tzinfo=tz55)
nowaware = self.theclass.combine(now.date(), timeaware)
self.assertIs(nowaware.tzinfo, tz55)
self.assertEqual(nowaware.timetz(), timeaware)
# Can't mix aware and non-aware.
self.assertRaises(TypeError, lambda: now - nowaware)
self.assertRaises(TypeError, lambda: nowaware - now)
# And adding datetime's doesn't make sense, aware or not.
self.assertRaises(TypeError, lambda: now + nowaware)
self.assertRaises(TypeError, lambda: nowaware + now)
self.assertRaises(TypeError, lambda: nowaware + nowaware)
# Subtracting should yield 0.
self.assertEqual(now - now, timedelta(0))
self.assertEqual(nowaware - nowaware, timedelta(0))
# Adding a delta should preserve tzinfo.
delta = timedelta(weeks=1, minutes=12, microseconds=5678)
nowawareplus = nowaware + delta
self.assertIs(nowaware.tzinfo, tz55)
nowawareplus2 = delta + nowaware
self.assertIs(nowawareplus2.tzinfo, tz55)
self.assertEqual(nowawareplus, nowawareplus2)
# that - delta should be what we started with, and that - what we
# started with should be delta.
diff = nowawareplus - delta
self.assertIs(diff.tzinfo, tz55)
self.assertEqual(nowaware, diff)
self.assertRaises(TypeError, lambda: delta - nowawareplus)
self.assertEqual(nowawareplus - nowaware, delta)
# Make up a random timezone.
tzr = FixedOffset(random.randrange(-1439, 1440), "randomtimezone")
# Attach it to nowawareplus.
nowawareplus = nowawareplus.replace(tzinfo=tzr)
self.assertIs(nowawareplus.tzinfo, tzr)
# Make sure the difference takes the timezone adjustments into account.
got = nowaware - nowawareplus
# Expected: (nowaware base - nowaware offset) -
# (nowawareplus base - nowawareplus offset) =
# (nowaware base - nowawareplus base) +
# (nowawareplus offset - nowaware offset) =
# -delta + nowawareplus offset - nowaware offset
expected = nowawareplus.utcoffset() - nowaware.utcoffset() - delta
self.assertEqual(got, expected)
# Try max possible difference.
min = self.theclass(1, 1, 1, tzinfo=FixedOffset(1439, "min"))
max = self.theclass(MAXYEAR, 12, 31, 23, 59, 59, 999999,
tzinfo=FixedOffset(-1439, "max"))
maxdiff = max - min
self.assertEqual(maxdiff, self.theclass.max - self.theclass.min +
timedelta(minutes=2*1439))
def test_tz_aware_arithmetic(self):
import random
now = self.theclass.now()
tz55 = FixedOffset(-330, "west 5:30")
timeaware = now.time().replace(tzinfo=tz55)
nowaware = self.theclass.combine(now.date(), timeaware)
self.assertIs(nowaware.tzinfo, tz55)
self.assertEqual(nowaware.timetz(), timeaware)
# Can't mix aware and non-aware.
self.assertRaises(TypeError, lambda: now - nowaware)
self.assertRaises(TypeError, lambda: nowaware - now)
# And adding datetime's doesn't make sense, aware or not.
self.assertRaises(TypeError, lambda: now + nowaware)
self.assertRaises(TypeError, lambda: nowaware + now)
self.assertRaises(TypeError, lambda: nowaware + nowaware)
# Subtracting should yield 0.
self.assertEqual(now - now, timedelta(0))
self.assertEqual(nowaware - nowaware, timedelta(0))
# Adding a delta should preserve tzinfo.
delta = timedelta(weeks=1, minutes=12, microseconds=5678)
nowawareplus = nowaware + delta
self.assertIs(nowaware.tzinfo, tz55)
nowawareplus2 = delta + nowaware
self.assertIs(nowawareplus2.tzinfo, tz55)
self.assertEqual(nowawareplus, nowawareplus2)
# that - delta should be what we started with, and that - what we
# started with should be delta.
diff = nowawareplus - delta
self.assertIs(diff.tzinfo, tz55)
self.assertEqual(nowaware, diff)
self.assertRaises(TypeError, lambda: delta - nowawareplus)
self.assertEqual(nowawareplus - nowaware, delta)
# Make up a random timezone.
tzr = FixedOffset(random.randrange(-1439, 1440), "randomtimezone")
# Attach it to nowawareplus.
nowawareplus = nowawareplus.replace(tzinfo=tzr)
self.assertIs(nowawareplus.tzinfo, tzr)
# Make sure the difference takes the timezone adjustments into account.
got = nowaware - nowawareplus
# Expected: (nowaware base - nowaware offset) -
# (nowawareplus base - nowawareplus offset) =
# (nowaware base - nowawareplus base) +
# (nowawareplus offset - nowaware offset) =
# -delta + nowawareplus offset - nowaware offset
expected = nowawareplus.utcoffset() - nowaware.utcoffset() - delta
self.assertEqual(got, expected)
# Try max possible difference.
min = self.theclass(1, 1, 1, tzinfo=FixedOffset(1439, "min"))
max = self.theclass(MAXYEAR, 12, 31, 23, 59, 59, 999999,
tzinfo=FixedOffset(-1439, "max"))
maxdiff = max - min
self.assertEqual(maxdiff, self.theclass.max - self.theclass.min +
timedelta(minutes=2*1439))
def test_tz_aware_arithmetic(self):
import random
now = self.theclass.now()
tz55 = FixedOffset(-330, "west 5:30")
timeaware = now.time().replace(tzinfo=tz55)
nowaware = self.theclass.combine(now.date(), timeaware)
self.assertTrue(nowaware.tzinfo is tz55)
self.assertEqual(nowaware.timetz(), timeaware)
# Can't mix aware and non-aware.
self.assertRaises(TypeError, lambda: now - nowaware)
self.assertRaises(TypeError, lambda: nowaware - now)
# And adding datetime's doesn't make sense, aware or not.
self.assertRaises(TypeError, lambda: now + nowaware)
self.assertRaises(TypeError, lambda: nowaware + now)
self.assertRaises(TypeError, lambda: nowaware + nowaware)
# Subtracting should yield 0.
self.assertEqual(now - now, timedelta(0))
self.assertEqual(nowaware - nowaware, timedelta(0))
# Adding a delta should preserve tzinfo.
delta = timedelta(weeks=1, minutes=12, microseconds=5678)
nowawareplus = nowaware + delta
self.assertTrue(nowaware.tzinfo is tz55)
nowawareplus2 = delta + nowaware
self.assertTrue(nowawareplus2.tzinfo is tz55)
self.assertEqual(nowawareplus, nowawareplus2)
# that - delta should be what we started with, and that - what we
# started with should be delta.
diff = nowawareplus - delta
self.assertTrue(diff.tzinfo is tz55)
self.assertEqual(nowaware, diff)
self.assertRaises(TypeError, lambda: delta - nowawareplus)
self.assertEqual(nowawareplus - nowaware, delta)
# Make up a random timezone.
tzr = FixedOffset(random.randrange(-1439, 1440), "randomtimezone")
# Attach it to nowawareplus.
nowawareplus = nowawareplus.replace(tzinfo=tzr)
self.assertTrue(nowawareplus.tzinfo is tzr)
# Make sure the difference takes the timezone adjustments into account.
got = nowaware - nowawareplus
# Expected: (nowaware base - nowaware offset) -
# (nowawareplus base - nowawareplus offset) =
# (nowaware base - nowawareplus base) +
# (nowawareplus offset - nowaware offset) =
# -delta + nowawareplus offset - nowaware offset
expected = nowawareplus.utcoffset() - nowaware.utcoffset() - delta
self.assertEqual(got, expected)
# Try max possible difference.
min = self.theclass(1, 1, 1, tzinfo=FixedOffset(1439, "min"))
max = self.theclass(MAXYEAR, 12, 31, 23, 59, 59, 999999,
tzinfo=FixedOffset(-1439, "max"))
maxdiff = max - min
self.assertEqual(maxdiff, self.theclass.max - self.theclass.min +
timedelta(minutes=2*1439))
