pyo3/pytests/tests/test_datetime.py

312 lines
7.8 KiB
Python

import datetime as pdt
import platform
import re
import struct
import sys
import pyo3_pytests.datetime as rdt
import pytest
from hypothesis import example, given
from hypothesis import strategies as st
# Constants
def _get_utc():
timezone = getattr(pdt, "timezone", None)
if timezone:
return timezone.utc
else:
class UTC(pdt.tzinfo):
def utcoffset(self, dt):
return pdt.timedelta(0)
def dst(self, dt):
return pdt.timedelta(0)
def tzname(self, dt):
return "UTC"
return UTC()
UTC = _get_utc()
MAX_SECONDS = int(pdt.timedelta.max.total_seconds())
MIN_SECONDS = int(pdt.timedelta.min.total_seconds())
MAX_DAYS = pdt.timedelta.max // pdt.timedelta(days=1)
MIN_DAYS = pdt.timedelta.min // pdt.timedelta(days=1)
MAX_MICROSECONDS = int(pdt.timedelta.max.total_seconds() * 1e6)
MIN_MICROSECONDS = int(pdt.timedelta.min.total_seconds() * 1e6)
# The reason we don't use platform.architecture() here is that it's not
# reliable on macOS. See https://stackoverflow.com/a/1405971/823869. Similarly,
# sys.maxsize is not reliable on Windows. See
# https://stackoverflow.com/questions/1405913/how-do-i-determine-if-my-python-shell-is-executing-in-32bit-or-64bit-mode-on-os/1405971#comment6209952_1405971
# and https://stackoverflow.com/a/3411134/823869.
_pointer_size = struct.calcsize("P")
if _pointer_size == 8:
IS_32_BIT = False
elif _pointer_size == 4:
IS_32_BIT = True
else:
raise RuntimeError("unexpected pointer size: " + repr(_pointer_size))
IS_WINDOWS = sys.platform == "win32"
if IS_WINDOWS:
MIN_DATETIME = pdt.datetime(1971, 1, 2, 0, 0)
if IS_32_BIT:
MAX_DATETIME = pdt.datetime(3001, 1, 19, 4, 59, 59)
else:
MAX_DATETIME = pdt.datetime(3001, 1, 19, 7, 59, 59)
else:
if IS_32_BIT:
# TS ±2147483648 (2**31)
MIN_DATETIME = pdt.datetime(1901, 12, 13, 20, 45, 52)
MAX_DATETIME = pdt.datetime(2038, 1, 19, 3, 14, 8)
else:
MIN_DATETIME = pdt.datetime(1, 1, 2, 0, 0)
MAX_DATETIME = pdt.datetime(9999, 12, 31, 18, 59, 59)
PYPY = platform.python_implementation() == "PyPy"
# Tests
def test_date():
assert rdt.make_date(2017, 9, 1) == pdt.date(2017, 9, 1)
@given(d=st.dates())
def test_date_accessors(d):
act = rdt.get_date_tuple(d)
exp = (d.year, d.month, d.day)
assert act == exp
def test_invalid_date_fails():
with pytest.raises(ValueError):
rdt.make_date(2017, 2, 30)
@given(d=st.dates(MIN_DATETIME.date(), MAX_DATETIME.date()))
def test_date_from_timestamp(d):
if PYPY and d < pdt.date(1900, 1, 1):
pytest.xfail("pdt.datetime.timestamp will raise on PyPy with dates before 1900")
ts = pdt.datetime.timestamp(pdt.datetime.combine(d, pdt.time(0)))
assert rdt.date_from_timestamp(int(ts)) == pdt.date.fromtimestamp(ts)
@pytest.mark.parametrize(
"args, kwargs",
[
((0, 0, 0, 0, None), {}),
((1, 12, 14, 124731), {}),
((1, 12, 14, 124731), {"tzinfo": UTC}),
],
)
def test_time(args, kwargs):
act = rdt.make_time(*args, **kwargs)
exp = pdt.time(*args, **kwargs)
assert act == exp
assert act.tzinfo is exp.tzinfo
@given(t=st.times())
def test_time(t):
act = rdt.get_time_tuple(t)
exp = (t.hour, t.minute, t.second, t.microsecond)
assert act == exp
@pytest.mark.xfail(PYPY, reason="Feature not available on PyPy")
@given(t=st.times())
def test_time_fold(t):
t_nofold = t.replace(fold=0)
t_fold = t.replace(fold=1)
for t in (t_nofold, t_fold):
act = rdt.get_time_tuple_fold(t)
exp = (t.hour, t.minute, t.second, t.microsecond, t.fold)
assert act == exp
@pytest.mark.xfail(PYPY, reason="Feature not available on PyPy")
@pytest.mark.parametrize("fold", [False, True])
def test_time_fold(fold):
t = rdt.time_with_fold(0, 0, 0, 0, None, fold)
assert t.fold == fold
@pytest.mark.parametrize(
"args", [(-1, 0, 0, 0), (0, -1, 0, 0), (0, 0, -1, 0), (0, 0, 0, -1)]
)
def test_invalid_time_fails_overflow(args):
with pytest.raises(OverflowError):
rdt.make_time(*args)
@pytest.mark.parametrize(
"args",
[
(24, 0, 0, 0),
(25, 0, 0, 0),
(0, 60, 0, 0),
(0, 61, 0, 0),
(0, 0, 60, 0),
(0, 0, 61, 0),
(0, 0, 0, 1000000),
],
)
def test_invalid_time_fails(args):
with pytest.raises(ValueError):
rdt.make_time(*args)
@pytest.mark.parametrize(
"args",
[
("0", 0, 0, 0),
(0, "0", 0, 0),
(0, 0, "0", 0),
(0, 0, 0, "0"),
(0, 0, 0, 0, "UTC"),
],
)
def test_time_typeerror(args):
with pytest.raises(TypeError):
rdt.make_time(*args)
@pytest.mark.parametrize(
"args, kwargs",
[((2017, 9, 1, 12, 45, 30, 0), {}), ((2017, 9, 1, 12, 45, 30, 0), {"tzinfo": UTC})],
)
def test_datetime(args, kwargs):
act = rdt.make_datetime(*args, **kwargs)
exp = pdt.datetime(*args, **kwargs)
assert act == exp
assert act.tzinfo is exp.tzinfo
@given(dt=st.datetimes())
def test_datetime_tuple(dt):
act = rdt.get_datetime_tuple(dt)
exp = dt.timetuple()[0:6] + (dt.microsecond,)
assert act == exp
@pytest.mark.xfail(PYPY, reason="Feature not available on PyPy")
@given(dt=st.datetimes())
def test_datetime_tuple_fold(dt):
dt_fold = dt.replace(fold=1)
dt_nofold = dt.replace(fold=0)
for dt in (dt_fold, dt_nofold):
act = rdt.get_datetime_tuple_fold(dt)
exp = dt.timetuple()[0:6] + (dt.microsecond, dt.fold)
assert act == exp
def test_invalid_datetime_fails():
with pytest.raises(ValueError):
rdt.make_datetime(2011, 1, 42, 0, 0, 0, 0)
def test_datetime_typeerror():
with pytest.raises(TypeError):
rdt.make_datetime("2011", 1, 1, 0, 0, 0, 0)
@given(dt=st.datetimes(MIN_DATETIME, MAX_DATETIME))
@example(dt=pdt.datetime(1971, 1, 2, 0, 0))
def test_datetime_from_timestamp(dt):
if PYPY and dt < pdt.datetime(1900, 1, 1):
pytest.xfail("pdt.datetime.timestamp will raise on PyPy with dates before 1900")
ts = pdt.datetime.timestamp(dt)
assert rdt.datetime_from_timestamp(ts) == pdt.datetime.fromtimestamp(ts)
def test_datetime_from_timestamp_tzinfo():
d1 = rdt.datetime_from_timestamp(0, tz=UTC)
d2 = rdt.datetime_from_timestamp(0, tz=UTC)
assert d1 == d2
assert d1.tzinfo is d2.tzinfo
@pytest.mark.parametrize(
"args",
[
(0, 0, 0),
(1, 0, 0),
(-1, 0, 0),
(0, 1, 0),
(0, -1, 0),
(1, -1, 0),
(-1, 1, 0),
(0, 0, 123456),
(0, 0, -123456),
],
)
def test_delta(args):
act = pdt.timedelta(*args)
exp = rdt.make_delta(*args)
assert act == exp
@given(td=st.timedeltas())
def test_delta_accessors(td):
act = rdt.get_delta_tuple(td)
exp = (td.days, td.seconds, td.microseconds)
assert act == exp
@pytest.mark.parametrize(
"args,err_type",
[
((MAX_DAYS + 1, 0, 0), OverflowError),
((MIN_DAYS - 1, 0, 0), OverflowError),
((0, MAX_SECONDS + 1, 0), OverflowError),
((0, MIN_SECONDS - 1, 0), OverflowError),
((0, 0, MAX_MICROSECONDS + 1), OverflowError),
((0, 0, MIN_MICROSECONDS - 1), OverflowError),
(("0", 0, 0), TypeError),
((0, "0", 0), TypeError),
((0, 0, "0"), TypeError),
],
)
def test_delta_err(args, err_type):
with pytest.raises(err_type):
rdt.make_delta(*args)
def test_tz_class():
tzi = rdt.TzClass()
dt = pdt.datetime(2018, 1, 1, tzinfo=tzi)
assert dt.tzname() == "+01:00"
assert dt.utcoffset() == pdt.timedelta(hours=1)
assert dt.dst() is None
def test_tz_class_introspection():
tzi = rdt.TzClass()
assert tzi.__class__ == rdt.TzClass
# PyPy generates <importlib.bootstrap.TzClass ...> for some reason.
assert re.match(r"^<[\w\.]*TzClass object at", repr(tzi))