Basic refactoring and Tom's recommendations

[imap-fix-internaldate] / unit_tester.py

'''
unit_tester.py - The module contains the MailScriptTester class.

Copyright (c) 2012 Intra2net AG
Author: Plamen Dimitrov

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
'''

import unittest
import datetime, date_interpreter

class MailScriptTester(unittest.TestCase):

    # class attributes
    # DateInterpreter instance testing the DateInterpreter methods
    date_interp = None
    # datetime for comparison with extracted datetimes and assertions
    true_date = None

    def setUp(self):
        self.date_interp = date_interpreter.DateInterpreter()
        self.true_date = datetime.datetime(2007, 12, 11, 18, 24, 35)

    def test_received_date_extraction1(self):
        """Tests the date extraction method."""
        date = [[0, b"Tue, 11 Dec 2007 18:24:35 +0100"]]
        extracted_date = self.date_interp.extract_received_date(date)
        self.assertEqual(extracted_date, self.true_date, "Failed date format 1")

    def test_received_date_extraction2(self):
        """Tests the date extraction method."""
        date = [[0, b"11 Dec 2007 \r\n18:24:35 +0100"]]
        extracted_date = self.date_interp.extract_received_date(date)
        self.assertEqual(extracted_date, self.true_date, "Failed date format 2")
        return

    def test_received_date_extraction3(self):
        """Tests the date extraction method."""  
        date = [[0, b"11 Dec 2007 18:24:35 +0100"]]
        extracted_date = self.date_interp.extract_received_date(date)
        self.assertEqual(extracted_date, self.true_date, "Failed date format 3")

    def test_received_date_extraction4(self):
        """Tests the date extraction method."""
        date = [[0, b"11 Dec 2007 18:24:35"]]
        extracted_date = self.date_interp.extract_received_date(date)
        #should not be equal because of time zone assumption
        self.assertNotEqual(extracted_date, self.true_date, "Failed date format 4")

    def test_received_date_extraction5(self):
        """Tests the received date extraction method."""
        date = [[0, b"11 Dec 2007 18:24:35 GMT"]]
        extracted_date = self.date_interp.extract_received_date(date)
        #should not be equal because of time zone assumption
        self.assertNotEqual(extracted_date, self.true_date, "Failed date format 5")

    def test_received_date_extraction6(self):
        """Tests the received date extraction method."""
        date = [[0, b'Received: from intranator.m.i2n ([unix socket])'
                b'by intranator.m.i2n with LMTPA; Tue, 11 Dec 2007 18:24:35'
                b'+0100Received: from localhost (intranator.m.i2n [127.0.0.1])'
                b'by localhost (Postfix) with ESMTP id 895812AC54for <intra2net_thomas@intranator.m.i2n>;'
                b'Sun, 13 Mar 2011 18:47:18 +0100 (CET)Received: from re04.intra2net.com '
                b'(re04.intra2net.com [82.165.46.26])(using TLSv1 with cipher ADH-AES256-SHA '
                b'(256/256 bits))(No client certificate requested)by intranator.m.i2n (Postfix) with '
                b'ESMTPS id 28DB92AC53for <thomas.jarosch@intra2net.com>; Sun, 13 Mar 2011 18:47:15 +0100 '
                b'(CET)Received: from postfix.charite.de (postfix.charite.de [141.42.206.35])(using TLSv1 '
                b'with cipher ADH-AES256-SHA (256/256 bits))(No client certificate requested)by '
                b're04.intra2net.com (Postfix) with ESMTP id C054A3010Afor <thomas.jarosch@intra2net.com>; '
                b'Sun, 13 Mar 2011 18:47:14 +0100 (CET)Received: from localhost (localhost [127.0.0.1])by '
                b'de.postfix.org (Postfix) with ESMTP id 7FCCFF7879for <thomas.jarosch@intra2net.com>; '
                b'Sun, 13 Mar 2011 18:47:14 +0100 (CET)Received: from de.postfix.org ([127.0.0.1])by '
                b'localhost (de.postfix.org [127.0.0.1]) (amavisd-new, port 10026)with LMTP id '
                b'YSXF-vf3+6E1 for <thomas.jarosch@intra2net.com>;Sun, 13 Mar 2011 18:47:14 +0100 (CET)'
                b'Received: from de.postfix.org (localhost [127.0.0.1])by de.postfix.org (Postfix) with '
                b'ESMTP id 3C3123DF1Efor <thomas.jarosch@intra2net.com>; Sun, 13 Mar 2011 18:46:33 +0100 '
                b'(CET)Received: from localhost (localhost [127.0.0.1])by de.postfix.org (Postfix) with '
                b'ESMTP id AB6CE3DBD2for <amavis-users@amavis.org>; Sun, 13 Mar 2011 18:45:57 +0100 (CET)'
                b'Received: from de.postfix.org ([127.0.0.1])by localhost (de.postfix.org [127.0.0.1]) '
                b'(amavisd-new, port 10024)with ESMTP id mBYiZO8wREeS for <amavis-users@amavis.org>;Sun, '
                b'13 Mar 2011 18:45:56 +0100 (CET)Received: from mail.inetmsg.com (mail.inetmsg.com '
                b'[173.10.94.185])by de.postfix.org (Postfix) with ESMTPSfor <amavis-users@amavis.org>; '
                b'Sun, 13 Mar 2011 18:45:55 +0100 (CET)Received: from [192.168.1.107] (fw1.inetmsg.com '
                b'[10.20.30.253])(using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits))'
                b'(No client certificate requested)by mail.inetmsg.com (INetMsg Mail Service) with ESMTPSA '
                b'id 0B95326CD1for <amavis-users@amavis.org>; Sun, 13 Mar 2011 10:45:41 -0700 (PDT)"]]']]
        extracted_date = self.date_interp.extract_received_date(date)
        #should not be equal because of time zone assumption
        self.assertEqual(extracted_date, self.true_date, "Failed date format 6")

    def test_compare_dates(self):
        """Tests the date comparison method."""
        self.true_date2 = datetime.datetime(2007, 12, 11, 18, 34, 35)
        #is difference of 10 mins significant if tolerance is 9 mins
        self.assertTrue(bool(self.date_interp.compare_dates(self.true_date, self.true_date2, 9*60)), "Failed at comparison test")
        #is difference of 10 mins significant if tolerance is 11 mins
        self.assertFalse(bool(self.date_interp.compare_dates(self.true_date, self.true_date2, 11*60)), "Failed at comparison test")

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