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test_utils.py
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test_utils.py
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# pylint: disable=no-self-use
import datetime
from typing import Optional
import pytest
from freezegun import freeze_time # type: ignore[import]
from http_exceptions.client_exceptions import BadRequestException
import datetime_helpers
class TestGetPreviousBusinessDay:
# check that we get the previous business day for default today
@freeze_time(time_to_freeze="2012-01-14")
def test_defaults(self) -> None:
previous_dt = datetime_helpers.get_previous_business_day()
assert previous_dt.weekday() == 4
# check get_previous_business_day
@pytest.mark.parametrize(
argnames="current_dt,weekday",
argvalues=[
(datetime.date(2021, 3, 26), 3), # Friday
(datetime.date(2021, 3, 27), 4), # Saturday
(datetime.date(2021, 3, 28), 4), # Sunday
(datetime.date(2021, 3, 29), 4), # Monday
(datetime.date(2021, 3, 31), 1), # Wednesday
],
)
def test_get_previous_business_day(self, current_dt: datetime.date, weekday: int) -> None:
previous_dt = datetime_helpers.get_previous_business_day(dt=current_dt)
assert previous_dt.weekday() == weekday
class TestGetNextBusinessDay:
# check that we get the next business day for default today
@freeze_time(time_to_freeze="2012-01-13")
def test_defaults(self) -> None:
next_dt = datetime_helpers.get_next_business_day()
assert next_dt.weekday() == 0
# check get_next_business_day
@pytest.mark.parametrize(
argnames="current_dt,weekday",
argvalues=[
(datetime.date(2021, 3, 27), 0), # Saturday
(datetime.date(2021, 3, 28), 0), # Sunday
(datetime.date(2021, 3, 29), 1), # Monday
(datetime.date(2021, 3, 31), 3), # Wednesday
],
)
def test_get_next_business_day(self, current_dt: datetime.date, weekday: int) -> None:
next_dt = datetime_helpers.get_next_business_day(dt=current_dt)
assert next_dt.weekday() == weekday
class TestDatetimeToString:
# check datetime_to_string
@pytest.mark.parametrize(
argnames="dt,datetime_format,text",
argvalues=[
(datetime.datetime(2016, 4, 17, 3, 12, 34), None, "2016-04-17T03:12:34.000000Z"),
(datetime.datetime(2016, 4, 17, 3, 12, 34), "%m-%Y-%dT%H:%M:%S.%fZ", "04-2016-17T03:12:34.000000Z"),
],
)
def test_datetime_to_string(self, dt: datetime.datetime, datetime_format: Optional[str], text: str) -> None:
kwargs = {}
if datetime_format:
kwargs['datetime_format'] = datetime_format
assert datetime_helpers.datetime_to_string(dt=dt, **kwargs) == text
class TestDateToString:
# check date_to_string
@pytest.mark.parametrize(
argnames="dt,date_format,text",
argvalues=[
(datetime.date(2016, 4, 17), None, "2016-04-17"),
(datetime.date(2016, 4, 17), "%d-%m-%Y", "17-04-2016"),
],
)
def test_date_to_string(self, dt: datetime.date, date_format: Optional[str], text: str) -> None:
kwargs = {}
if date_format:
kwargs['date_format'] = date_format
assert datetime_helpers.date_to_string(dt=dt, **kwargs) == text
class TestDateFromString:
# check date_from_string
@pytest.mark.parametrize(
argnames="text,date_format,dt",
argvalues=[
("2016-04-17", None, datetime.date(2016, 4, 17)),
("17-04-2016", "%d-%m-%Y", datetime.date(2016, 4, 17)),
],
)
def test_date_from_string(self, text: str, date_format: Optional[str], dt: datetime.datetime) -> None:
kwargs = {}
if date_format:
kwargs['date_format'] = date_format
assert datetime_helpers.date_from_string(text=text, **kwargs) == dt
class TestDatetimeFromString:
# check datetime_from_string
@pytest.mark.parametrize(
argnames="text,datetime_format,dt",
argvalues=[
("2016-04-17T00:00:00.000000Z", None, datetime.datetime(2016, 4, 17)),
("17-04-2016", "%d-%m-%Y", datetime.datetime(2016, 4, 17)),
],
)
# check datetime_from_string
def test_datetime_from_string(self, text: str, datetime_format: Optional[str], dt: datetime.datetime) -> None:
kwargs = {}
if datetime_format:
kwargs['datetime_format'] = datetime_format
assert datetime_helpers.datetime_from_string(text=text, **kwargs) == dt
class TestGetDayOfWeek:
# check get_day_of_week
@pytest.mark.parametrize(
argnames="dt,day_of_week",
argvalues=[
(datetime.date(2021, 2, 1), datetime_helpers.DayOfWeek.MONDAY), # monday
(datetime.date(2021, 2, 2), datetime_helpers.DayOfWeek.TUESDAY), # tuesday
(datetime.date(2021, 2, 3), datetime_helpers.DayOfWeek.WEDNESDAY), # wednesday
(datetime.date(2021, 2, 4), datetime_helpers.DayOfWeek.THURSDAY), # thursday
(datetime.date(2021, 2, 5), datetime_helpers.DayOfWeek.FRIDAY), # friday
(datetime.date(2021, 2, 6), datetime_helpers.DayOfWeek.SATURDAY), # saturday
(datetime.date(2021, 2, 7), datetime_helpers.DayOfWeek.SUNDAY), # sunday
],
)
def test_get_day_of_week(self, dt: datetime.date, day_of_week: str) -> None:
assert datetime_helpers.get_day_of_week(dt=dt) == day_of_week
# see https://www.timeanddate.com/calendar/?year=2021&country=9
class TestIsWeekday:
# check is_weekday
@pytest.mark.parametrize(
argnames="dt,is_weekday",
argvalues=[
(datetime.date(2021, 2, 1), True), # monday
(datetime.date(2021, 2, 2), True), # tuesday
(datetime.date(2021, 2, 3), True), # wednesday
(datetime.date(2021, 2, 4), True), # thursday
(datetime.date(2021, 2, 5), True), # friday
(datetime.date(2021, 2, 6), False), # saturday
(datetime.date(2021, 2, 7), False), # sunday
],
)
def test_is_weekday(self, dt: datetime.date, is_weekday: bool) -> None:
assert datetime_helpers.is_weekday(dt=dt) is is_weekday
# see https://www.timeanddate.com/calendar/?year=2021&country=9
class TestIsWeekend:
# check is_weekend
@pytest.mark.parametrize(
argnames="dt,is_weekend",
argvalues=[
(datetime.date(2021, 2, 1), False), # monday
(datetime.date(2021, 2, 2), False), # tuesday
(datetime.date(2021, 2, 3), False), # wednesday
(datetime.date(2021, 2, 4), False), # thursday
(datetime.date(2021, 2, 5), False), # friday
(datetime.date(2021, 2, 6), True), # saturday
(datetime.date(2021, 2, 7), True), # sunday
],
)
def test_is_weekend(self, dt: datetime.date, is_weekend: bool) -> None:
assert datetime_helpers.is_weekend(dt=dt) is is_weekend # sunday
# see https://www.timeanddate.com/calendar/?year=2021&country=9
class TestGetFirstBusinessDayOfMonth:
# check get_first_business_day_of_month
@pytest.mark.parametrize(
argnames="dt,first_business_day_of_month",
argvalues=[
(datetime.date(2021, 1, 20), datetime.date(2021, 1, 1)),
(datetime.date(2021, 2, 20), datetime.date(2021, 2, 1)),
(datetime.date(2021, 3, 20), datetime.date(2021, 3, 1)),
(datetime.date(2021, 4, 20), datetime.date(2021, 4, 1)),
(datetime.date(2021, 5, 20), datetime.date(2021, 5, 3)),
(datetime.date(2021, 6, 20), datetime.date(2021, 6, 1)),
(datetime.date(2021, 7, 20), datetime.date(2021, 7, 1)),
(datetime.date(2021, 8, 20), datetime.date(2021, 8, 2)),
(datetime.date(2021, 9, 20), datetime.date(2021, 9, 1)),
(datetime.date(2021, 10, 20), datetime.date(2021, 10, 1)),
(datetime.date(2021, 11, 20), datetime.date(2021, 11, 1)),
(datetime.date(2021, 12, 20), datetime.date(2021, 12, 1)),
],
)
def test_get_first_business_day_of_month(self, dt: datetime.date, first_business_day_of_month: datetime.date) -> None:
assert datetime_helpers.get_first_business_day_of_month(dt=dt) == first_business_day_of_month
# see https://www.timeanddate.com/calendar/?year=2021&country=9
class TestGetNthBusinessDayOfMonth:
# check get_nth_business_day_of_month
@pytest.mark.parametrize(
argnames="current_dt,n,nth_business_day_of_month",
argvalues=[
(datetime.date(2021, 2, 5), 1, datetime.date(2021, 2, 1)),
(datetime.date(2021, 2, 5), 2, datetime.date(2021, 2, 2)),
(datetime.date(2021, 2, 5), 3, datetime.date(2021, 2, 3)),
(datetime.date(2021, 2, 5), 4, datetime.date(2021, 2, 4)),
(datetime.date(2021, 2, 5), 5, datetime.date(2021, 2, 5)),
(datetime.date(2021, 2, 5), 6, datetime.date(2021, 2, 8)),
(datetime.date(2021, 2, 5), 7, datetime.date(2021, 2, 9)),
(datetime.date(2021, 2, 5), 8, datetime.date(2021, 2, 10)),
(datetime.date(2021, 2, 5), 9, datetime.date(2021, 2, 11)),
(datetime.date(2021, 2, 5), 10, datetime.date(2021, 2, 12)),
(datetime.date(2021, 2, 5), 11, datetime.date(2021, 2, 15)),
(datetime.date(2021, 2, 5), 12, datetime.date(2021, 2, 16)),
(datetime.date(2021, 2, 5), 13, datetime.date(2021, 2, 17)),
(datetime.date(2021, 2, 5), 14, datetime.date(2021, 2, 18)),
(datetime.date(2021, 2, 5), 15, datetime.date(2021, 2, 19)),
(datetime.date(2021, 2, 5), 16, datetime.date(2021, 2, 22)),
(datetime.date(2021, 2, 5), 17, datetime.date(2021, 2, 23)),
(datetime.date(2021, 2, 5), 18, datetime.date(2021, 2, 24)),
(datetime.date(2021, 2, 5), 19, datetime.date(2021, 2, 25)),
(datetime.date(2021, 2, 5), 20, datetime.date(2021, 2, 26)),
],
)
def test_get_nth_business_day_of_month(self, current_dt: datetime.date, n: int, nth_business_day_of_month: datetime.date) -> None: # pylint: disable=invalid-name
assert datetime_helpers.get_nth_business_day_of_month(dt=current_dt, n=n) == nth_business_day_of_month
# check that an exception is raised if the nth business day exceeds the month
def test_nth_business_day_exceeds_month(self) -> None:
with pytest.raises(BadRequestException):
datetime_helpers.get_nth_business_day_of_month(dt=datetime.date(2021, 2, 5), n=21)
class TestDatetimeFromWindowsFiletime:
# check datetime_from_windows_filetime
@pytest.mark.parametrize(
argnames="windows_filetime,datetime_from_windows_filetime",
argvalues=[
(116444736000000000, datetime.datetime(1970, 1, 1, 0, 0)),
(128930364000000000, datetime.datetime(2009, 7, 25, 23, 0)),
(128930364000001000, datetime.datetime(2009, 7, 25, 23, 0, 0, 100)),
],
)
def test_datetime_from_windows_filetime(self, windows_filetime: int, datetime_from_windows_filetime: datetime.datetime) -> None:
assert datetime_helpers.datetime_from_windows_filetime(windows_filetime=windows_filetime) == datetime_from_windows_filetime
class TestDatetimeFromSeconds:
# check datetime_from_seconds
@pytest.mark.parametrize(
argnames="seconds,dt",
argvalues=[
(-1460851200, datetime.datetime(1923, 9, 17)),
(0, datetime.datetime(1970, 1, 1)),
(1, datetime.datetime(1970, 1, 1, 0, 0, 1)),
(1460851200, datetime.datetime(2016, 4, 17)),
],
)
def test_datetime_from_seconds(self, seconds: int, dt: datetime.datetime) -> None:
assert datetime_helpers.datetime_from_seconds(seconds=seconds) == dt
class TestDatetimeToSeconds:
# check datetime_to_seconds
@pytest.mark.parametrize(
argnames="dt,seconds",
argvalues=[
(datetime.datetime(1923, 9, 17), -1460851200),
(datetime.datetime(1970, 1, 1), 0),
(datetime.datetime(1970, 1, 1, 0, 0, 1), 1),
(datetime.datetime(2016, 4, 17), 1460851200),
(datetime.date(2016, 4, 17), 1460851200),
],
)
def test_datetime_to_seconds(self, dt: datetime.datetime, seconds: int) -> None:
assert datetime_helpers.datetime_to_seconds(dt=dt) == seconds
class TestDatetimeToAndFromSecondsRoundTrip:
# check datetime_to_seconds, datetime_from_seconds round trip
@pytest.mark.parametrize(
argnames="dt",
argvalues=[
(datetime.datetime(1923, 9, 17)),
(datetime.datetime(1970, 1, 1)),
(datetime.datetime(1970, 1, 1, 0, 0, 1)),
(datetime.datetime(2016, 4, 17)),
],
)
def test_datetime_to_and_from_seconds(self, dt: datetime.datetime) -> None:
assert datetime_helpers.datetime_from_seconds(seconds=datetime_helpers.datetime_to_seconds(dt=dt)) == dt
# check datetime_from_seconds, datetime_to_seconds round trip
@pytest.mark.parametrize(
argnames="seconds",
argvalues=[
(-1460851200),
(0),
(1),
(1460851200),
],
)
def test_datetime_from_and_to_seconds(self, seconds: float) -> None:
assert datetime_helpers.datetime_to_seconds(dt=datetime_helpers.datetime_from_seconds(seconds=seconds)) == seconds
class TestDatetimeFromMillis:
# check datetime_from_millis
@pytest.mark.parametrize(
argnames="millis,dt",
argvalues=[
(-1460851200000, datetime.datetime(1923, 9, 17)),
(0, datetime.datetime(1970, 1, 1)),
(1000, datetime.datetime(1970, 1, 1, 0, 0, 1)),
(1460851200000, datetime.datetime(2016, 4, 17)),
],
)
def test_datetime_from_millis(self, millis: int, dt: datetime.datetime) -> None:
assert datetime_helpers.datetime_from_millis(millis=millis) == dt
class TestDatetimeToMillis:
# check datetime_to_millis
@pytest.mark.parametrize(
argnames="dt,millis",
argvalues=[
(datetime.datetime(1923, 9, 17), -1460851200000),
(datetime.datetime(1970, 1, 1), 0),
(datetime.datetime(1970, 1, 1, 0, 0, 1), 1000),
(datetime.datetime(2016, 4, 17), 1460851200000),
(datetime.datetime(2017, 4, 17), 1492387200000),
],
)
def test_datetime_to_millis(self, dt: datetime.datetime, millis: int) -> None:
assert datetime_helpers.datetime_to_millis(dt=dt) == millis
class TestDatetimeToAndFromMillisRoundTrip:
# check datetime_to_millis, datetime_from_millis round trip
@pytest.mark.parametrize(
argnames="dt",
argvalues=[
(datetime.datetime(1923, 9, 17)),
(datetime.datetime(1970, 1, 1)),
(datetime.datetime(1970, 1, 1, 0, 0, 1)),
(datetime.datetime(2016, 4, 17)),
],
)
def test_datetime_to_and_from_millis(self, dt: datetime.datetime) -> None:
assert datetime_helpers.datetime_from_millis(millis=datetime_helpers.datetime_to_millis(dt=dt)) == dt
# check datetime_from_millis, datetime_to_millis round trip
@pytest.mark.parametrize(
argnames="millis",
argvalues=[
(-1460851200000),
(0),
(1000),
(1460851200000),
],
)
def test_datetime_from_and_to_millis(self, millis: float) -> None:
assert datetime_helpers.datetime_to_millis(dt=datetime_helpers.datetime_from_millis(millis=millis)) == millis
class TestDatetimeFromDate:
# check datetime_from_date
@pytest.mark.parametrize(
argnames="dt,expected_dt",
argvalues=[
(datetime.datetime(1970, 1, 1), datetime.datetime(1970, 1, 1)),
(datetime.datetime(1970, 1, 1, 0, 0, 1), datetime.datetime(1970, 1, 1, 0, 0, 1)),
(datetime.date(1970, 1, 1), datetime.datetime(1970, 1, 1, 0, 0, 0)),
],
)
def test_datetime_from_date(self, dt: datetime.date, expected_dt: datetime.datetime) -> None:
assert datetime_helpers.datetime_from_date(dt) == expected_dt