import datetime
import unittest
import pytz

from wsme import utils


class TestUtils(unittest.TestCase):
    def test_parse_isodate(self):
        good_dates = [
            ('2008-02-01', datetime.date(2008, 2, 1)),
            ('2009-01-04', datetime.date(2009, 1, 4)),
        ]
        ill_formatted_dates = [
            '24-12-2004'
        ]
        out_of_range_dates = [
            '0000-00-00',
            '2012-02-30',
        ]
        for s, d in good_dates:
            assert utils.parse_isodate(s) == d
        for s in ill_formatted_dates + out_of_range_dates:
            self.assertRaises(ValueError, utils.parse_isodate, s)

    def test_parse_isotime(self):
        good_times = [
            ('12:03:54', datetime.time(12, 3, 54)),
            ('23:59:59.000004', datetime.time(23, 59, 59, 4)),
            ('01:02:03+00:00', datetime.time(1, 2, 3, 0, pytz.UTC)),
            ('01:02:03+23:59', datetime.time(1, 2, 3, 0,
                                             pytz.FixedOffset(1439))),
            ('01:02:03-23:59', datetime.time(1, 2, 3, 0,
                                             pytz.FixedOffset(-1439))),
        ]
        ill_formatted_times = [
            '24-12-2004'
        ]
        out_of_range_times = [
            '32:12:00',
            '00:54:60',
            '01:02:03-24:00',
            '01:02:03+24:00',
        ]
        for s, t in good_times:
            assert utils.parse_isotime(s) == t
        for s in ill_formatted_times + out_of_range_times:
            self.assertRaises(ValueError, utils.parse_isotime, s)

    def test_parse_isodatetime(self):
        good_datetimes = [
            ('2008-02-12T12:03:54',
             datetime.datetime(2008, 2, 12, 12, 3, 54)),
            ('2012-05-14T23:59:59.000004',
             datetime.datetime(2012, 5, 14, 23, 59, 59, 4)),
            ('1856-07-10T01:02:03+00:00',
             datetime.datetime(1856, 7, 10, 1, 2, 3, 0, pytz.UTC)),
            ('1856-07-10T01:02:03+23:59',
             datetime.datetime(1856, 7, 10, 1, 2, 3, 0,
                               pytz.FixedOffset(1439))),
            ('1856-07-10T01:02:03-23:59',
             datetime.datetime(1856, 7, 10, 1, 2, 3, 0,
                               pytz.FixedOffset(-1439))),
        ]
        ill_formatted_datetimes = [
            '24-32-2004',
            '1856-07-10+33:00'
        ]
        out_of_range_datetimes = [
            '2008-02-12T32:12:00',
            '2012-13-12T00:54:60',
        ]
        for s, t in good_datetimes:
            assert utils.parse_isodatetime(s) == t
        for s in ill_formatted_datetimes + out_of_range_datetimes:
            self.assertRaises(ValueError, utils.parse_isodatetime, s)

    def test_validator_with_valid_code(self):
        valid_code = 404
        self.assertTrue(
            utils.is_valid_code(valid_code),
            "Valid status code not detected"
        )

    def test_validator_with_invalid_int_code(self):
        invalid_int_code = 648
        self.assertFalse(
            utils.is_valid_code(invalid_int_code),
            "Invalid status code not detected"
        )

    def test_validator_with_invalid_str_code(self):
        invalid_str_code = '404'
        self.assertFalse(
            utils.is_valid_code(invalid_str_code),
            "Invalid status code not detected"
        )