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# -*- coding: utf-8 -*-
from pybind11_tests import chrono as m
import datetime
import pytest
import env # noqa: F401
def test_chrono_system_clock():
# Get the time from both c++ and datetime
date0 = datetime.datetime.today()
date1 = m.test_chrono1()
date2 = datetime.datetime.today()
# The returned value should be a datetime
assert isinstance(date1, datetime.datetime)
# The numbers should vary by a very small amount (time it took to execute)
diff_python = abs(date2 - date0)
diff = abs(date1 - date2)
# There should never be a days difference
assert diff.days == 0
# Since datetime.datetime.today() calls time.time(), and on some platforms
# that has 1 second accuracy, we compare this way
assert diff.seconds <= diff_python.seconds
def test_chrono_system_clock_roundtrip():
date1 = datetime.datetime.today()
# Roundtrip the time
date2 = m.test_chrono2(date1)
# The returned value should be a datetime
assert isinstance(date2, datetime.datetime)
# They should be identical (no information lost on roundtrip)
diff = abs(date1 - date2)
assert diff.days == 0
assert diff.seconds == 0
assert diff.microseconds == 0
def test_chrono_system_clock_roundtrip_date():
date1 = datetime.date.today()
# Roundtrip the time
datetime2 = m.test_chrono2(date1)
date2 = datetime2.date()
time2 = datetime2.time()
# The returned value should be a datetime
assert isinstance(datetime2, datetime.datetime)
assert isinstance(date2, datetime.date)
assert isinstance(time2, datetime.time)
# They should be identical (no information lost on roundtrip)
diff = abs(date1 - date2)
assert diff.days == 0
assert diff.seconds == 0
assert diff.microseconds == 0
# Year, Month & Day should be the same after the round trip
assert date1.year == date2.year
assert date1.month == date2.month
assert date1.day == date2.day
# There should be no time information
assert time2.hour == 0
assert time2.minute == 0
assert time2.second == 0
assert time2.microsecond == 0
SKIP_TZ_ENV_ON_WIN = pytest.mark.skipif(
"env.WIN", reason="TZ environment variable only supported on POSIX"
)
@pytest.mark.parametrize(
"time1",
[
datetime.datetime.today().time(),
datetime.time(0, 0, 0),
datetime.time(0, 0, 0, 1),
datetime.time(0, 28, 45, 109827),
datetime.time(0, 59, 59, 999999),
datetime.time(1, 0, 0),
datetime.time(5, 59, 59, 0),
datetime.time(5, 59, 59, 1),
],
)
@pytest.mark.parametrize(
"tz",
[
None,
pytest.param("Europe/Brussels", marks=SKIP_TZ_ENV_ON_WIN),
pytest.param("Asia/Pyongyang", marks=SKIP_TZ_ENV_ON_WIN),
pytest.param("America/New_York", marks=SKIP_TZ_ENV_ON_WIN),
],
)
def test_chrono_system_clock_roundtrip_time(time1, tz, monkeypatch):
if tz is not None:
monkeypatch.setenv("TZ", "/usr/share/zoneinfo/{}".format(tz))
# Roundtrip the time
datetime2 = m.test_chrono2(time1)
date2 = datetime2.date()
time2 = datetime2.time()
# The returned value should be a datetime
assert isinstance(datetime2, datetime.datetime)
assert isinstance(date2, datetime.date)
assert isinstance(time2, datetime.time)
# Hour, Minute, Second & Microsecond should be the same after the round trip
assert time1.hour == time2.hour
assert time1.minute == time2.minute
assert time1.second == time2.second
assert time1.microsecond == time2.microsecond
# There should be no date information (i.e. date = python base date)
assert date2.year == 1970
assert date2.month == 1
assert date2.day == 1
def test_chrono_duration_roundtrip():
# Get the difference between two times (a timedelta)
date1 = datetime.datetime.today()
date2 = datetime.datetime.today()
diff = date2 - date1
# Make sure this is a timedelta
assert isinstance(diff, datetime.timedelta)
cpp_diff = m.test_chrono3(diff)
assert cpp_diff.days == diff.days
assert cpp_diff.seconds == diff.seconds
assert cpp_diff.microseconds == diff.microseconds
def test_chrono_duration_subtraction_equivalence():
date1 = datetime.datetime.today()
date2 = datetime.datetime.today()
diff = date2 - date1
cpp_diff = m.test_chrono4(date2, date1)
assert cpp_diff.days == diff.days
assert cpp_diff.seconds == diff.seconds
assert cpp_diff.microseconds == diff.microseconds
def test_chrono_duration_subtraction_equivalence_date():
date1 = datetime.date.today()
date2 = datetime.date.today()
diff = date2 - date1
cpp_diff = m.test_chrono4(date2, date1)
assert cpp_diff.days == diff.days
assert cpp_diff.seconds == diff.seconds
assert cpp_diff.microseconds == diff.microseconds
def test_chrono_steady_clock():
time1 = m.test_chrono5()
assert isinstance(time1, datetime.timedelta)
def test_chrono_steady_clock_roundtrip():
time1 = datetime.timedelta(days=10, seconds=10, microseconds=100)
time2 = m.test_chrono6(time1)
assert isinstance(time2, datetime.timedelta)
# They should be identical (no information lost on roundtrip)
assert time1.days == time2.days
assert time1.seconds == time2.seconds
assert time1.microseconds == time2.microseconds
def test_floating_point_duration():
# Test using a floating point number in seconds
time = m.test_chrono7(35.525123)
assert isinstance(time, datetime.timedelta)
assert time.seconds == 35
assert 525122 <= time.microseconds <= 525123
diff = m.test_chrono_float_diff(43.789012, 1.123456)
assert diff.seconds == 42
assert 665556 <= diff.microseconds <= 665557
def test_nano_timepoint():
time = datetime.datetime.now()
time1 = m.test_nano_timepoint(time, datetime.timedelta(seconds=60))
assert time1 == time + datetime.timedelta(seconds=60)
def test_chrono_different_resolutions():
resolutions = m.different_resolutions()
time = datetime.datetime.now()
resolutions.timestamp_h = time
resolutions.timestamp_m = time
resolutions.timestamp_s = time
resolutions.timestamp_ms = time
resolutions.timestamp_us = time
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