import unittest
from datetime import date, datetime, time, timedelta
from django.utils.dateparse import (
parse_date,
parse_datetime,
parse_duration,
parse_time,
)
from django.utils.timezone import get_fixed_timezone
from django.utils.version import PY311
class DateParseTests(unittest.TestCase):
def test_parse_date(self):
# Valid inputs
self.assertEqual(parse_date("2012-04-23"), date(2012, 4, 23))
self.assertEqual(parse_date("2012-4-9"), date(2012, 4, 9))
if PY311:
self.assertEqual(parse_date("20120423"), date(2012, 4, 23))
# Invalid inputs
self.assertIsNone(parse_date("2012423"))
with self.assertRaises(ValueError):
parse_date("2012-04-56")
def test_parse_time(self):
# Valid inputs
self.assertEqual(parse_time("09:15:00"), time(9, 15))
if PY311:
self.assertEqual(parse_time("091500"), time(9, 15))
self.assertEqual(parse_time("10:10"), time(10, 10))
self.assertEqual(parse_time("10:20:30.400"), time(10, 20, 30, 400000))
self.assertEqual(parse_time("10:20:30,400"), time(10, 20, 30, 400000))
self.assertEqual(parse_time("4:8:16"), time(4, 8, 16))
# Time zone offset is ignored.
self.assertEqual(parse_time("00:05:23+04:00"), time(0, 5, 23))
# Invalid inputs
self.assertIsNone(parse_time("00:05:"))
self.assertIsNone(parse_time("00:05:23,"))
self.assertIsNone(parse_time("00:05:23+"))
self.assertIsNone(parse_time("00:05:23+25:00"))
self.assertIsNone(parse_time("4:18:101"))
self.assertIsNone(parse_time("91500"))
with self.assertRaises(ValueError):
parse_time("09:15:90")
def test_parse_datetime(self):
valid_inputs = (
("2012-04-23T09:15:00", datetime(2012, 4, 23, 9, 15)),
("2012-4-9 4:8:16", datetime(2012, 4, 9, 4, 8, 16)),
(
"2012-04-23T09:15:00Z",
datetime(2012, 4, 23, 9, 15, 0, 0, get_fixed_timezone(0)),
),
(
"2012-4-9 4:8:16-0320",
datetime(2012, 4, 9, 4, 8, 16, 0, get_fixed_timezone(-200)),
),
(
"2012-04-23T10:20:30.400+02:30",
datetime(2012, 4, 23, 10, 20, 30, 400000, get_fixed_timezone(150)),
),
(
"2012-04-23T10:20:30.400+02",
datetime(2012, 4, 23, 10, 20, 30, 400000, get_fixed_timezone(120)),
),
(
"2012-04-23T10:20:30.400-02",
datetime(2012, 4, 23, 10, 20, 30, 400000, get_fixed_timezone(-120)),
),
(
"2012-04-23T10:20:30,400-02",
datetime(2012, 4, 23, 10, 20, 30, 400000, get_fixed_timezone(-120)),
),
(
"2012-04-23T10:20:30.400 +0230",
datetime(2012, 4, 23, 10, 20, 30, 400000, get_fixed_timezone(150)),
),
(
"2012-04-23T10:20:30,400 +00",
datetime(2012, 4, 23, 10, 20, 30, 400000, get_fixed_timezone(0)),
),
(
"2012-04-23T10:20:30 -02",
datetime(2012, 4, 23, 10, 20, 30, 0, get_fixed_timezone(-120)),
),
)
for source, expected in valid_inputs:
with self.subTest(source=source):
self.assertEqual(parse_datetime(source), expected)
# Invalid inputs
self.assertIsNone(parse_datetime("20120423091500"))
with self.assertRaises(ValueError):
parse_datetime("2012-04-56T09:15:90")
class DurationParseTests(unittest.TestCase):
def test_parse_python_format(self):
timedeltas = [
timedelta(
days=4, minutes=15, seconds=30, milliseconds=100
), # fractions of seconds
timedelta(hours=10, minutes=15, seconds=30), # hours, minutes, seconds
timedelta(days=4, minutes=15, seconds=30), # multiple days
timedelta(days=1, minutes=00, seconds=00), # single day
timedelta(days=-4, minutes=15, seconds=30), # negative durations
timedelta(minutes=15, seconds=30), # minute & seconds
timedelta(seconds=30), # seconds
]
for delta in timedeltas:
with self.subTest(delta=delta):
self.assertEqual(parse_duration(format(delta)), delta)
def test_parse_postgresql_format(self):
test_values = (
("1 day", timedelta(1)),
("-1 day", timedelta(-1)),
("1 day 0:00:01", timedelta(days=1, seconds=1)),
("1 day -0:00:01", timedelta(days=1, seconds=-1)),
("-1 day -0:00:01", timedelta(days=-1, seconds=-1)),
("-1 day +0:00:01", timedelta(days=-1, seconds=1)),
(
"4 days 0:15:30.1",
timedelta(days=4, minutes=15, seconds=30, milliseconds=100),
),
(
"4 days 0:15:30.0001",
timedelta(days=4, minutes=15, seconds=30, microseconds=100),
),
("-4 days -15:00:30", timedelta(days=-4, hours=-15, seconds=-30)),
)
for source, expected in test_values:
with self.subTest(source=source):
self.assertEqual(parse_duration(source), expected)
def test_seconds(self):
self.assertEqual(parse_duration("30"), timedelta(seconds=30))
def test_minutes_seconds(self):
self.assertEqual(parse_duration("15:30"), timedelta(minutes=15, seconds=30))
self.assertEqual(parse_duration("5:30"), timedelta(minutes=5, seconds=30))
def test_hours_minutes_seconds(self):
self.assertEqual(
parse_duration("10:15:30"), timedelta(hours=10, minutes=15, seconds=30)
)
self.assertEqual(
parse_duration("1:15:30"), timedelta(hours=1, minutes=15, seconds=30)
)
self.assertEqual(
parse_duration("100:200:300"),
timedelta(hours=100, minutes=200, seconds=300),
)
def test_days(self):
self.assertEqual(
parse_duration("4 15:30"), timedelta(days=4, minutes=15, seconds=30)
)
self.assertEqual(
parse_duration("4 10:15:30"),
timedelta(days=4, hours=10, minutes=15, seconds=30),
)
def test_fractions_of_seconds(self):
test_values = (
("15:30.1", timedelta(minutes=15, seconds=30, milliseconds=100)),
("15:30.01", timedelta(minutes=15, seconds=30, milliseconds=10)),
("15:30.001", timedelta(minutes=15, seconds=30, milliseconds=1)),
("15:30.0001", timedelta(minutes=15, seconds=30, microseconds=100)),
("15:30.00001", timedelta(minutes=15, seconds=30, microseconds=10)),
("15:30.000001", timedelta(minutes=15, seconds=30, microseconds=1)),
("15:30,000001", timedelta(minutes=15, seconds=30, microseconds=1)),
)
for source, expected in test_values:
with self.subTest(source=source):
self.assertEqual(parse_duration(source), expected)
def test_negative(self):
test_values = (
("-4 15:30", timedelta(days=-4, minutes=15, seconds=30)),
("-172800", timedelta(days=-2)),
("-15:30", timedelta(minutes=-15, seconds=-30)),
("-1:15:30", timedelta(hours=-1, minutes=-15, seconds=-30)),
("-30.1", timedelta(seconds=-30, milliseconds=-100)),
("-30,1", timedelta(seconds=-30, milliseconds=-100)),
("-00:01:01", timedelta(minutes=-1, seconds=-1)),
("-01:01", timedelta(seconds=-61)),
("-01:-01", None),
)
for source, expected in test_values:
with self.subTest(source=source):
self.assertEqual(parse_duration(source), expected)
def test_iso_8601(self):
test_values = (
("P4Y", None),
("P4M", None),
("P4W", None),
("P4D", timedelta(days=4)),
("-P1D", timedelta(days=-1)),
("P0.5D", timedelta(hours=12)),
("P0,5D", timedelta(hours=12)),
("-P0.5D", timedelta(hours=-12)),
("-P0,5D", timedelta(hours=-12)),
("PT5H", timedelta(hours=5)),
("-PT5H", timedelta(hours=-5)),
("PT5M", timedelta(minutes=5)),
("-PT5M", timedelta(minutes=-5)),
("PT5S", timedelta(seconds=5)),
("-PT5S", timedelta(seconds=-5)),
("PT0.000005S", timedelta(microseconds=5)),
("PT0,000005S", timedelta(microseconds=5)),
("-PT0.000005S", timedelta(microseconds=-5)),
("-PT0,000005S", timedelta(microseconds=-5)),
("-P4DT1H", timedelta(days=-4, hours=-1)),
# Invalid separators for decimal fractions.
("P3(3D", None),
("PT3)3H", None),
("PT3|3M", None),
("PT3/3S", None),
)
for source, expected in test_values:
with self.subTest(source=source):
self.assertEqual(parse_duration(source), expected)