import unittest
from datetime import datetime

from ogn.parser.utils import dmsToDeg, createTimestamp
from ogn.parser.exceptions import AmbigousTimeError


class TestStringMethods(unittest.TestCase):
    def test_dmsToDeg(self):
        dms = 50.4830
        self.assertAlmostEqual(dmsToDeg(dms), 50.805, 5)

    def test_createTimestamp_seconds_behind(self):
        timestamp = createTimestamp('235959', reference=datetime(2015, 10, 16, 0, 0, 1))
        self.assertEqual(timestamp, datetime(2015, 10, 15, 23, 59, 59))

    def test_createTimestamp_seconds_before(self):
        timestamp = createTimestamp('000001', reference=datetime(2015, 10, 15, 23, 59, 59))
        self.assertEqual(timestamp, datetime(2015, 10, 16, 0, 0, 1))

    def test_createTimestamp_big_difference(self):
        with self.assertRaises(AmbigousTimeError):
            createTimestamp('123456', reference=datetime(2015, 10, 15, 23, 59, 59))


if __name__ == '__main__':
    unittest.main()