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from datetime import datetime, timedelta, timezone
from tests import SiteTest
from pysite.utils.time import is_expired, parse_duration
class DurationParsingTests(SiteTest):
"""Tests the `parse_duration` method provided by `pysite.utils.time`."""
SIMPLE_DURATION_STRINGS = (
('42s', timedelta(seconds=42)),
('12m', timedelta(minutes=12)),
('20h', timedelta(hours=20)),
('7d', timedelta(days=7)),
('2w', timedelta(weeks=2))
)
COMBINED_DURATION_STRINGS = (
('12m30s', timedelta(minutes=12, seconds=30)),
('20h5m', timedelta(hours=20, minutes=5)),
('7d10h12s', timedelta(days=7, hours=10, seconds=12))
)
def test_simple_duration_string_parsing(self):
for duration_string, added_delta in self.SIMPLE_DURATION_STRINGS:
timezone_aware_now = datetime.now(timezone.utc)
self.assertAlmostEqual(
parse_duration(duration_string).timestamp(),
(timezone_aware_now + added_delta).timestamp(),
places=-1 # Being off by < 10 seconds is acceptable
)
def test_combined_duration_string_parsing(self):
for duration_string, added_delta in self.COMBINED_DURATION_STRINGS:
timezone_aware_now = datetime.now(timezone.utc)
self.assertAlmostEqual(
parse_duration(duration_string).timestamp(),
(timezone_aware_now + added_delta).timestamp(),
places=-1 # Being off by < 10 seconds is acceptable
)
def test_empty_duration_raises_valueerror(self):
with self.assertRaises(ValueError):
parse_duration('')
def test_unknown_char_raises_valueerror(self):
with self.assertRaises(ValueError):
parse_duration('12l')
def test_valid_unit_without_digits_raises_valueerror(self):
with self.assertRaises(ValueError):
parse_duration('s')
class ExpiryTests(SiteTest):
"""Tests the `is_expired` method provided by `pysite.utils.time`."""
EXPIRY_DELTAS = (
timedelta(seconds=30),
timedelta(minutes=12),
timedelta(hours=20),
timedelta(days=5),
timedelta(weeks=7)
)
def test_datetimes_in_the_past_are_expired(self):
for delta in self.EXPIRY_DELTAS:
date = datetime.now(timezone.utc) - delta
self.assertTrue(is_expired(date))
def test_datetimes_in_the_future_are_not_expired(self):
for delta in self.EXPIRY_DELTAS:
date = datetime.now(timezone.utc) + delta
self.assertFalse(is_expired(date))
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