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"""
Test cases for the isodate module.
"""
import unittest
from datetime import date
from isodate import parse_date, ISO8601Error, date_isoformat
from isodate import DATE_CENTURY, DATE_YEAR
from isodate import DATE_BAS_MONTH, DATE_EXT_MONTH
from isodate import DATE_EXT_COMPLETE, DATE_BAS_COMPLETE
from isodate import DATE_BAS_ORD_COMPLETE, DATE_EXT_ORD_COMPLETE
from isodate import DATE_BAS_WEEK, DATE_BAS_WEEK_COMPLETE
from isodate import DATE_EXT_WEEK, DATE_EXT_WEEK_COMPLETE
# the following list contains tuples of ISO date strings and the expected
# result from the parse_date method. A result of None means an ISO8601Error
# is expected. The test cases are grouped into dates with 4 digit years
# and 6 digit years.
TEST_CASES = {
4: [
("19", date(1901, 1, 1), DATE_CENTURY),
("1985", date(1985, 1, 1), DATE_YEAR),
("1985-04", date(1985, 4, 1), DATE_EXT_MONTH),
("198504", date(1985, 4, 1), DATE_BAS_MONTH),
("1985-04-12", date(1985, 4, 12), DATE_EXT_COMPLETE),
("19850412", date(1985, 4, 12), DATE_BAS_COMPLETE),
("1985102", date(1985, 4, 12), DATE_BAS_ORD_COMPLETE),
("1985-102", date(1985, 4, 12), DATE_EXT_ORD_COMPLETE),
("1985W155", date(1985, 4, 12), DATE_BAS_WEEK_COMPLETE),
("1985-W15-5", date(1985, 4, 12), DATE_EXT_WEEK_COMPLETE),
("1985W15", date(1985, 4, 8), DATE_BAS_WEEK),
("1985-W15", date(1985, 4, 8), DATE_EXT_WEEK),
("1989-W15", date(1989, 4, 10), DATE_EXT_WEEK),
("1989-W15-5", date(1989, 4, 14), DATE_EXT_WEEK_COMPLETE),
("1-W1-1", None, DATE_BAS_WEEK_COMPLETE),
],
6: [
("+0019", date(1901, 1, 1), DATE_CENTURY),
("+001985", date(1985, 1, 1), DATE_YEAR),
("+001985-04", date(1985, 4, 1), DATE_EXT_MONTH),
("+001985-04-12", date(1985, 4, 12), DATE_EXT_COMPLETE),
("+0019850412", date(1985, 4, 12), DATE_BAS_COMPLETE),
("+001985102", date(1985, 4, 12), DATE_BAS_ORD_COMPLETE),
("+001985-102", date(1985, 4, 12), DATE_EXT_ORD_COMPLETE),
("+001985W155", date(1985, 4, 12), DATE_BAS_WEEK_COMPLETE),
("+001985-W15-5", date(1985, 4, 12), DATE_EXT_WEEK_COMPLETE),
("+001985W15", date(1985, 4, 8), DATE_BAS_WEEK),
("+001985-W15", date(1985, 4, 8), DATE_EXT_WEEK),
],
}
def create_testcase(yeardigits, datestring, expectation, format):
"""
Create a TestCase class for a specific test.
This allows having a separate TestCase for each test tuple from the
TEST_CASES list, so that a failed test won't stop other tests.
"""
class TestDate(unittest.TestCase):
"""
A test case template to parse an ISO date string into a date
object.
"""
def test_parse(self):
"""
Parse an ISO date string and compare it to the expected value.
"""
if expectation is None:
self.assertRaises(ISO8601Error, parse_date, datestring, yeardigits)
else:
result = parse_date(datestring, yeardigits)
self.assertEqual(result, expectation)
def test_format(self):
"""
Take date object and create ISO string from it.
This is the reverse test to test_parse.
"""
if expectation is None:
self.assertRaises(
AttributeError, date_isoformat, expectation, format, yeardigits
)
else:
self.assertEqual(
date_isoformat(expectation, format, yeardigits), datestring
)
return unittest.TestLoader().loadTestsFromTestCase(TestDate)
def test_suite():
"""
Construct a TestSuite instance for all test cases.
"""
suite = unittest.TestSuite()
for yeardigits, tests in TEST_CASES.items():
for datestring, expectation, format in tests:
suite.addTest(create_testcase(yeardigits, datestring, expectation, format))
return suite
# load_tests Protocol
def load_tests(loader, tests, pattern):
return test_suite()
if __name__ == "__main__":
unittest.main(defaultTest="test_suite")
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