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date_tests.py
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#!/usr/bin/env python3
"""Tests for the date module."""
#
# (C) Pywikibot team, 2012-2024
#
# Distributed under the terms of the MIT license.
#
from __future__ import annotations
import unittest
from contextlib import suppress
from datetime import datetime
from pywikibot import date
from tests.aspects import MetaTestCaseClass, TestCase
class DateTestMeta(MetaTestCaseClass):
"""Date test meta class."""
def __new__(cls, name, bases, dct):
"""Create the new class."""
def test_method(formatname):
def testMapEntry(self):
"""The test ported from date.py."""
step = 1
if formatname in date.decadeFormats:
step = 10
try:
predicate, start, stop = date.formatLimits[formatname]
except KeyError: # pragma: no cover
return
for code, convert in date.formats[formatname].items():
for value in range(start, stop, step):
self.assertTrue(
predicate(value),
f"date.formats['{formatname}']['{code}']:\n"
f'invalid value {value}'
)
new_value = convert(convert(value))
self.assertEqual(
new_value, value,
f"date.formats['{formatname}']['{code}']:\n"
f'value {new_value} does not match {value}'
)
return testMapEntry
for formatname in date.formats:
cls.add_method(dct, 'test_' + formatname, test_method(formatname),
doc_suffix=f'using {formatname} format')
return super().__new__(cls, name, bases, dct)
class TestDate(TestCase, metaclass=DateTestMeta):
"""Test cases for date library processed by unittest."""
net = False
class TestMonthName(TestCase):
"""Test MonthName format."""
net = True
def test_month_name_formats(self):
"""Test MonthName format for codes retrieved via MediaWiki message."""
formatname = 'MonthName'
for code in date.formats['Cat_BirthsAD']:
convert = date.formats[formatname][code]
predicate, start, stop = date.formatLimits[formatname]
for value in range(start, stop):
with self.subTest(code=code, month=value):
self.assertTrue(
predicate(value),
f"date.formats['{formatname}']['{code}']:\n"
f'invalid value {value}'
)
new_value = convert(convert(value))
self.assertEqual(
new_value, value,
f"date.formats['{formatname}']['{code}']:\n"
f'value {new_value} does not match {value}'
)
def test_month_name(self):
"""Test some MonthName results."""
# T273573
self.assertEqual(date.formats['MonthName']['hu']('január'), 1)
self.assertEqual(date.formats['MonthName']['hu'](5), 'május')
class TestMonthDelta(TestCase):
"""Tests for adding months to a date and getting the months between two."""
net = False
def test_apply_positive_delta(self):
"""Test adding months to a date."""
self.assertEqual(datetime(2012, 3, 10),
date.apply_month_delta(datetime(2012, 1, 10), 2))
self.assertEqual(datetime(2012, 3, 31),
date.apply_month_delta(datetime(2012, 1, 31), 2))
self.assertEqual(datetime(2012, 2, 29),
date.apply_month_delta(datetime(2012, 1, 31)))
self.assertEqual(datetime(2012, 3, 2),
date.apply_month_delta(datetime(2012, 1, 31),
add_overlap=True))
def test_apply_negative_delta(self):
"""Test adding months to a date."""
self.assertEqual(datetime(2012, 1, 10),
date.apply_month_delta(datetime(2012, 3, 10), -2))
self.assertEqual(datetime(2012, 1, 31),
date.apply_month_delta(datetime(2012, 3, 31), -2))
self.assertEqual(datetime(2012, 2, 29),
date.apply_month_delta(datetime(2012, 3, 31), -1))
self.assertEqual(datetime(2012, 3, 2),
date.apply_month_delta(datetime(2012, 3, 31), -1,
add_overlap=True))
def test_get_delta(self):
"""Test that the delta is calculated correctly."""
self.assertEqual(date.get_month_delta(datetime(2012, 1, 31),
datetime(2012, 3, 31)), 2)
self.assertEqual(date.get_month_delta(datetime(2012, 3, 31),
datetime(2012, 1, 31)), -2)
self.assertEqual(date.get_month_delta(datetime(2012, 3, 31),
datetime(2013, 1, 31)), 10)
self.assertEqual(date.get_month_delta(datetime(2014, 3, 31),
datetime(2013, 3, 31)), -12)
if __name__ == '__main__':
with suppress(SystemExit):
unittest.main()