Check delayed content

delayed.py

#!/usr/bin/python2.7
# coding: utf-8
import unittest
import datetime


def is_delayed(ratio, periodicity, last_publication_date):
    """
    ratio (integer): numero de fasciculos para considerar o atraso.
    periodicity (integer): periodicidade do periodico em meses 1, 2, 3, 4, 5.....
    last_publication_date YYYY-MM-DD: Data iso valida ex: 2014-02-01
    return:
        Boolean
    """

    per = 30 * periodicity
    delay_range = ratio * per
    delay_delta = datetime.timedelta(delay_range)
    delay_limit = datetime.datetime.now()-delay_delta
    last_publication_date = datetime.datetime.strptime(last_publication_date, "%Y-%m-%d")

    if last_publication_date < delay_limit:
        return True

    return False


class TestCases(unittest.TestCase):

    def test_is_delayed_True(self):

        result = is_delayed(1, 3, '2014-06-02')

        self.assertEqual(result, False)

    def test_is_delayed_False(self):

        result = is_delayed(1, 2, '2014-06-01')

        self.assertEqual(result, True)

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