--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/env/lib/python3.7/site-packages/isodate/tests/test_duration.py	Sat May 02 07:14:21 2020 -0400
@@ -0,0 +1,606 @@
+##############################################################################
+# Copyright 2009, Gerhard Weis
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice,
+#    this list of conditions and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice,
+#    this list of conditions and the following disclaimer in the documentation
+#    and/or other materials provided with the distribution.
+#  * Neither the name of the authors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT
+##############################################################################
+'''
+Test cases for the isoduration module.
+'''
+import unittest
+import operator
+from datetime import timedelta, date, datetime
+
+from isodate import Duration, parse_duration, ISO8601Error
+from isodate import D_DEFAULT, D_WEEK, D_ALT_EXT, duration_isoformat
+
+# the following list contains tuples of ISO duration strings and the expected
+# result from the parse_duration method. A result of None means an ISO8601Error
+# is expected.
+PARSE_TEST_CASES = {'P18Y9M4DT11H9M8S': (Duration(4, 8, 0, 0, 9, 11, 0, 9, 18),
+                                         D_DEFAULT, None),
+                    'P2W': (timedelta(weeks=2), D_WEEK, None),
+                    'P3Y6M4DT12H30M5S': (Duration(4, 5, 0, 0, 30, 12, 0, 6, 3),
+                                         D_DEFAULT, None),
+                    'P23DT23H': (timedelta(hours=23, days=23),
+                                 D_DEFAULT, None),
+                    'P4Y': (Duration(years=4), D_DEFAULT, None),
+                    'P1M': (Duration(months=1), D_DEFAULT, None),
+                    'PT1M': (timedelta(minutes=1), D_DEFAULT, None),
+                    'P0.5Y': (Duration(years=0.5), D_DEFAULT, None),
+                    'PT36H': (timedelta(hours=36), D_DEFAULT, 'P1DT12H'),
+                    'P1DT12H': (timedelta(days=1, hours=12), D_DEFAULT, None),
+                    '+P11D': (timedelta(days=11), D_DEFAULT, 'P11D'),
+                    '-P2W': (timedelta(weeks=-2), D_WEEK, None),
+                    '-P2.2W': (timedelta(weeks=-2.2), D_DEFAULT,
+                               '-P15DT9H36M'),
+                    'P1DT2H3M4S': (timedelta(days=1, hours=2, minutes=3,
+                                             seconds=4), D_DEFAULT, None),
+                    'P1DT2H3M': (timedelta(days=1, hours=2, minutes=3),
+                                 D_DEFAULT, None),
+                    'P1DT2H': (timedelta(days=1, hours=2), D_DEFAULT, None),
+                    'PT2H': (timedelta(hours=2), D_DEFAULT, None),
+                    'PT2.3H': (timedelta(hours=2.3), D_DEFAULT, 'PT2H18M'),
+                    'PT2H3M4S': (timedelta(hours=2, minutes=3, seconds=4),
+                                 D_DEFAULT, None),
+                    'PT3M4S': (timedelta(minutes=3, seconds=4), D_DEFAULT,
+                               None),
+                    'PT22S': (timedelta(seconds=22), D_DEFAULT, None),
+                    'PT22.22S': (timedelta(seconds=22.22), 'PT%S.%fS',
+                                 'PT22.220000S'),
+                    '-P2Y': (Duration(years=-2), D_DEFAULT, None),
+                    '-P3Y6M4DT12H30M5S': (Duration(-4, -5, 0, 0, -30, -12, 0,
+                                                   -6, -3), D_DEFAULT, None),
+                    '-P1DT2H3M4S': (timedelta(days=-1, hours=-2, minutes=-3,
+                                              seconds=-4), D_DEFAULT, None),
+                    # alternative format
+                    'P0018-09-04T11:09:08': (Duration(4, 8, 0, 0, 9, 11, 0, 9,
+                                                      18), D_ALT_EXT, None),
+                    # 'PT000022.22': timedelta(seconds=22.22),
+                    }
+
+#                       d1                    d2           '+', '-', '>'
+# A list of test cases to test addition and subtraction between datetime and
+# Duration objects.
+# each tuple contains 2 duration strings, and a result string for addition and
+# one for subtraction. The last value says, if the first duration is greater
+# than the second.
+MATH_TEST_CASES = (('P5Y7M1DT9H45M16.72S', 'PT27M24.68S',
+                    'P5Y7M1DT10H12M41.4S', 'P5Y7M1DT9H17M52.04S', None),
+                   ('PT28M12.73S', 'PT56M29.92S',
+                    'PT1H24M42.65S', '-PT28M17.19S', False),
+                   ('P3Y7M23DT5H25M0.33S', 'PT1H1.95S',
+                    'P3Y7M23DT6H25M2.28S', 'P3Y7M23DT4H24M58.38S', None),
+                   ('PT1H1.95S', 'P3Y7M23DT5H25M0.33S',
+                    'P3Y7M23DT6H25M2.28S', '-P3Y7M23DT4H24M58.38S', None),
+                   ('P1332DT55M0.33S', 'PT1H1.95S',
+                    'P1332DT1H55M2.28S', 'P1331DT23H54M58.38S', True),
+                   ('PT1H1.95S', 'P1332DT55M0.33S',
+                    'P1332DT1H55M2.28S', '-P1331DT23H54M58.38S', False))
+
+
+# A list of test cases to test addition and subtraction of date/datetime
+# and Duration objects. They are tested against the results of an
+# equal long timedelta duration.
+DATE_TEST_CASES = ((date(2008, 2, 29),
+                    timedelta(days=10, hours=12, minutes=20),
+                    Duration(days=10, hours=12, minutes=20)),
+                   (date(2008, 1, 31),
+                    timedelta(days=10, hours=12, minutes=20),
+                    Duration(days=10, hours=12, minutes=20)),
+                   (datetime(2008, 2, 29),
+                    timedelta(days=10, hours=12, minutes=20),
+                    Duration(days=10, hours=12, minutes=20)),
+                   (datetime(2008, 1, 31),
+                    timedelta(days=10, hours=12, minutes=20),
+                    Duration(days=10, hours=12, minutes=20)),
+                   (datetime(2008, 4, 21),
+                    timedelta(days=10, hours=12, minutes=20),
+                    Duration(days=10, hours=12, minutes=20)),
+                   (datetime(2008, 5, 5),
+                    timedelta(days=10, hours=12, minutes=20),
+                    Duration(days=10, hours=12, minutes=20)),
+                   (datetime(2000, 1, 1),
+                    timedelta(hours=-33),
+                    Duration(hours=-33)),
+                   (datetime(2008, 5, 5),
+                    Duration(years=1, months=1, days=10, hours=12,
+                             minutes=20),
+                    Duration(months=13, days=10, hours=12, minutes=20)),
+                   (datetime(2000, 3, 30),
+                    Duration(years=1, months=1, days=10, hours=12,
+                             minutes=20),
+                    Duration(months=13, days=10, hours=12, minutes=20)),
+                   )
+
+# A list of test cases of additon of date/datetime and Duration. The results
+# are compared against a given expected result.
+DATE_CALC_TEST_CASES = (
+    (date(2000, 2, 1),
+     Duration(years=1, months=1),
+     date(2001, 3, 1)),
+    (date(2000, 2, 29),
+     Duration(years=1, months=1),
+     date(2001, 3, 29)),
+    (date(2000, 2, 29),
+     Duration(years=1),
+     date(2001, 2, 28)),
+    (date(1996, 2, 29),
+     Duration(years=4),
+     date(2000, 2, 29)),
+    (date(2096, 2, 29),
+     Duration(years=4),
+     date(2100, 2, 28)),
+    (date(2000, 2, 1),
+     Duration(years=-1, months=-1),
+     date(1999, 1, 1)),
+    (date(2000, 2, 29),
+     Duration(years=-1, months=-1),
+     date(1999, 1, 29)),
+    (date(2000, 2, 1),
+     Duration(years=1, months=1, days=1),
+     date(2001, 3, 2)),
+    (date(2000, 2, 29),
+     Duration(years=1, months=1, days=1),
+     date(2001, 3, 30)),
+    (date(2000, 2, 29),
+     Duration(years=1, days=1),
+     date(2001, 3, 1)),
+    (date(1996, 2, 29),
+     Duration(years=4, days=1),
+     date(2000, 3, 1)),
+    (date(2096, 2, 29),
+     Duration(years=4, days=1),
+     date(2100, 3, 1)),
+    (date(2000, 2, 1),
+     Duration(years=-1, months=-1, days=-1),
+     date(1998, 12, 31)),
+    (date(2000, 2, 29),
+     Duration(years=-1, months=-1, days=-1),
+     date(1999, 1, 28)),
+    (date(2001, 4, 1),
+     Duration(years=-1, months=-1, days=-1),
+     date(2000, 2, 29)),
+    (date(2000, 4, 1),
+     Duration(years=-1, months=-1, days=-1),
+     date(1999, 2, 28)),
+    (Duration(years=1, months=2),
+     Duration(years=0, months=0, days=1),
+     Duration(years=1, months=2, days=1)),
+    (Duration(years=-1, months=-1, days=-1),
+     date(2000, 4, 1),
+     date(1999, 2, 28)),
+    (Duration(years=1, months=1, weeks=5),
+     date(2000, 1, 30),
+     date(2001, 4, 4)),
+    (parse_duration("P1Y1M5W"),
+     date(2000, 1, 30),
+     date(2001, 4, 4)),
+    (parse_duration("P0.5Y"),
+     date(2000, 1, 30),
+     None),
+    (Duration(years=1, months=1, hours=3),
+     datetime(2000, 1, 30, 12, 15, 00),
+     datetime(2001, 2, 28, 15, 15, 00)),
+    (parse_duration("P1Y1MT3H"),
+     datetime(2000, 1, 30, 12, 15, 00),
+     datetime(2001, 2, 28, 15, 15, 00)),
+    (Duration(years=1, months=2),
+     timedelta(days=1),
+     Duration(years=1, months=2, days=1)),
+    (timedelta(days=1),
+     Duration(years=1, months=2),
+     Duration(years=1, months=2, days=1)),
+    (datetime(2008, 1, 1, 0, 2),
+     Duration(months=1),
+     datetime(2008, 2, 1, 0, 2)),
+    (datetime.strptime("200802", "%Y%M"),
+     parse_duration("P1M"),
+     datetime(2008, 2, 1, 0, 2)),
+    (datetime(2008, 2, 1),
+     Duration(months=1),
+     datetime(2008, 3, 1)),
+    (datetime.strptime("200802", "%Y%m"),
+     parse_duration("P1M"),
+     datetime(2008, 3, 1)),
+    # (date(2000, 1, 1),
+    #  Duration(years=1.5),
+    #  date(2001, 6, 1)),
+    # (date(2000, 1, 1),
+    #  Duration(years=1, months=1.5),
+    #  date(2001, 2, 14)),
+    )
+
+# A list of test cases of multiplications of durations
+# are compared against a given expected result.
+DATE_MUL_TEST_CASES = (
+    (Duration(years=1, months=1),
+     3,
+     Duration(years=3, months=3)),
+    (Duration(years=1, months=1),
+     -3,
+     Duration(years=-3, months=-3)),
+    (3,
+     Duration(years=1, months=1),
+     Duration(years=3, months=3)),
+    (-3,
+     Duration(years=1, months=1),
+     Duration(years=-3, months=-3)),
+    (5,
+     Duration(years=2, minutes=40),
+     Duration(years=10, hours=3, minutes=20)),
+    (-5,
+     Duration(years=2, minutes=40),
+     Duration(years=-10, hours=-3, minutes=-20)),
+    (7,
+     Duration(years=1, months=2, weeks=40),
+     Duration(years=8, months=2, weeks=280)))
+
+
+class DurationTest(unittest.TestCase):
+    '''
+    This class tests various other aspects of the isoduration module,
+    which are not covered with the test cases listed above.
+    '''
+
+    def test_associative(self):
+        '''
+        Adding 2 durations to a date is not associative.
+        '''
+        days1 = Duration(days=1)
+        months1 = Duration(months=1)
+        start = date(2000, 3, 30)
+        res1 = start + days1 + months1
+        res2 = start + months1 + days1
+        self.assertNotEqual(res1, res2)
+
+    def test_typeerror(self):
+        '''
+        Test if TypError is raised with certain parameters.
+        '''
+        self.assertRaises(TypeError, parse_duration, date(2000, 1, 1))
+        self.assertRaises(TypeError, operator.sub, Duration(years=1),
+                          date(2000, 1, 1))
+        self.assertRaises(TypeError, operator.sub, 'raise exc',
+                          Duration(years=1))
+        self.assertRaises(TypeError, operator.add,
+                          Duration(years=1, months=1, weeks=5),
+                          'raise exception')
+        self.assertRaises(TypeError, operator.add, 'raise exception',
+                          Duration(years=1, months=1, weeks=5))
+        self.assertRaises(TypeError, operator.mul,
+                          Duration(years=1, months=1, weeks=5),
+                          'raise exception')
+        self.assertRaises(TypeError, operator.mul, 'raise exception',
+                          Duration(years=1, months=1, weeks=5))
+        self.assertRaises(TypeError, operator.mul,
+                          Duration(years=1, months=1, weeks=5),
+                          3.14)
+        self.assertRaises(TypeError, operator.mul, 3.14,
+                          Duration(years=1, months=1, weeks=5))
+
+    def test_parseerror(self):
+        '''
+        Test for unparseable duration string.
+        '''
+        self.assertRaises(ISO8601Error, parse_duration, 'T10:10:10')
+
+    def test_repr(self):
+        '''
+        Test __repr__ and __str__ for Duration objects.
+        '''
+        dur = Duration(10, 10, years=10, months=10)
+        self.assertEqual('10 years, 10 months, 10 days, 0:00:10', str(dur))
+        self.assertEqual('isodate.duration.Duration(10, 10, 0,'
+                         ' years=10, months=10)', repr(dur))
+        dur = Duration(months=0)
+        self.assertEqual('0:00:00', str(dur))
+        dur = Duration(months=1)
+        self.assertEqual('1 month, 0:00:00', str(dur))
+
+    def test_hash(self):
+        '''
+        Test __hash__ for Duration objects.
+        '''
+        dur1 = Duration(10, 10, years=10, months=10)
+        dur2 = Duration(9, 9, years=9, months=9)
+        dur3 = Duration(10, 10, years=10, months=10)
+        self.assertNotEqual(hash(dur1), hash(dur2))
+        self.assertNotEqual(id(dur1), id(dur2))
+        self.assertEqual(hash(dur1), hash(dur3))
+        self.assertNotEqual(id(dur1), id(dur3))
+        durSet = set()
+        durSet.add(dur1)
+        durSet.add(dur2)
+        durSet.add(dur3)
+        self.assertEqual(len(durSet), 2)
+
+    def test_neg(self):
+        '''
+        Test __neg__ for Duration objects.
+        '''
+        self.assertEqual(-Duration(0), Duration(0))
+        self.assertEqual(-Duration(years=1, months=1),
+                         Duration(years=-1, months=-1))
+        self.assertEqual(-Duration(years=1, months=1), Duration(months=-13))
+        self.assertNotEqual(-Duration(years=1), timedelta(days=-365))
+        self.assertNotEqual(-timedelta(days=365), Duration(years=-1))
+        # FIXME: this test fails in python 3... it seems like python3
+        #        treats a == b the same b == a
+        # self.assertNotEqual(-timedelta(days=10), -Duration(days=10))
+
+    def test_format(self):
+        '''
+        Test various other strftime combinations.
+        '''
+        self.assertEqual(duration_isoformat(Duration(0)), 'P0D')
+        self.assertEqual(duration_isoformat(-Duration(0)), 'P0D')
+        self.assertEqual(duration_isoformat(Duration(seconds=10)), 'PT10S')
+        self.assertEqual(duration_isoformat(Duration(years=-1, months=-1)),
+                         '-P1Y1M')
+        self.assertEqual(duration_isoformat(-Duration(years=1, months=1)),
+                         '-P1Y1M')
+        self.assertEqual(duration_isoformat(-Duration(years=-1, months=-1)),
+                         'P1Y1M')
+        self.assertEqual(duration_isoformat(-Duration(years=-1, months=-1)),
+                         'P1Y1M')
+        dur = Duration(years=3, months=7, days=23, hours=5, minutes=25,
+                       milliseconds=330)
+        self.assertEqual(duration_isoformat(dur), 'P3Y7M23DT5H25M0.33S')
+        self.assertEqual(duration_isoformat(-dur), '-P3Y7M23DT5H25M0.33S')
+
+    def test_equal(self):
+        '''
+        Test __eq__ and __ne__ methods.
+        '''
+        self.assertEqual(Duration(years=1, months=1),
+                         Duration(years=1, months=1))
+        self.assertEqual(Duration(years=1, months=1), Duration(months=13))
+        self.assertNotEqual(Duration(years=1, months=2),
+                            Duration(years=1, months=1))
+        self.assertNotEqual(Duration(years=1, months=1), Duration(months=14))
+        self.assertNotEqual(Duration(years=1), timedelta(days=365))
+        self.assertFalse(Duration(years=1, months=1) !=
+                         Duration(years=1, months=1))
+        self.assertFalse(Duration(years=1, months=1) != Duration(months=13))
+        self.assertTrue(Duration(years=1, months=2) !=
+                        Duration(years=1, months=1))
+        self.assertTrue(Duration(years=1, months=1) != Duration(months=14))
+        self.assertTrue(Duration(years=1) != timedelta(days=365))
+        self.assertEqual(Duration(days=1), timedelta(days=1))
+        # FIXME: this test fails in python 3... it seems like python3
+        #        treats a != b the same b != a
+        # self.assertNotEqual(timedelta(days=1), Duration(days=1))
+
+    def test_totimedelta(self):
+        '''
+        Test conversion form Duration to timedelta.
+        '''
+        dur = Duration(years=1, months=2, days=10)
+        self.assertEqual(dur.totimedelta(datetime(1998, 2, 25)),
+                         timedelta(434))
+        # leap year has one day more in february
+        self.assertEqual(dur.totimedelta(datetime(2000, 2, 25)),
+                         timedelta(435))
+        dur = Duration(months=2)
+        # march is longer than february, but april is shorter than
+        # march (cause only one day difference compared to 2)
+        self.assertEqual(dur.totimedelta(datetime(2000, 2, 25)), timedelta(60))
+        self.assertEqual(dur.totimedelta(datetime(2001, 2, 25)), timedelta(59))
+        self.assertEqual(dur.totimedelta(datetime(2001, 3, 25)), timedelta(61))
+
+
+def create_parsetestcase(durationstring, expectation, format, altstr):
+    """
+    Create a TestCase class for a specific test.
+
+    This allows having a separate TestCase for each test tuple from the
+    PARSE_TEST_CASES list, so that a failed test won't stop other tests.
+    """
+
+    class TestParseDuration(unittest.TestCase):
+        '''
+        A test case template to parse an ISO duration string into a
+        timedelta or Duration object.
+        '''
+
+        def test_parse(self):
+            '''
+            Parse an ISO duration string and compare it to the expected value.
+            '''
+            result = parse_duration(durationstring)
+            self.assertEqual(result, expectation)
+
+        def test_format(self):
+            '''
+            Take duration/timedelta object and create ISO string from it.
+            This is the reverse test to test_parse.
+            '''
+            if altstr:
+                self.assertEqual(duration_isoformat(expectation, format),
+                                 altstr)
+            else:
+                # if durationstring == '-P2W':
+                #     import pdb; pdb.set_trace()
+                self.assertEqual(duration_isoformat(expectation, format),
+                                 durationstring)
+
+    return unittest.TestLoader().loadTestsFromTestCase(TestParseDuration)
+
+
+def create_mathtestcase(dur1, dur2, resadd, ressub, resge):
+    """
+    Create a TestCase class for a specific test.
+
+    This allows having a separate TestCase for each test tuple from the
+    MATH_TEST_CASES list, so that a failed test won't stop other tests.
+    """
+
+    dur1 = parse_duration(dur1)
+    dur2 = parse_duration(dur2)
+    resadd = parse_duration(resadd)
+    ressub = parse_duration(ressub)
+
+    class TestMathDuration(unittest.TestCase):
+        '''
+        A test case template test addition, subtraction and >
+        operators for Duration objects.
+        '''
+
+        def test_add(self):
+            '''
+            Test operator + (__add__, __radd__)
+            '''
+            self.assertEqual(dur1 + dur2, resadd)
+
+        def test_sub(self):
+            '''
+            Test operator - (__sub__, __rsub__)
+            '''
+            self.assertEqual(dur1 - dur2, ressub)
+
+        def test_ge(self):
+            '''
+            Test operator > and <
+            '''
+            def dogetest():
+                ''' Test greater than.'''
+                return dur1 > dur2
+
+            def doletest():
+                ''' Test less than.'''
+                return dur1 < dur2
+            if resge is None:
+                self.assertRaises(TypeError, dogetest)
+                self.assertRaises(TypeError, doletest)
+            else:
+                self.assertEqual(dogetest(), resge)
+                self.assertEqual(doletest(), not resge)
+
+    return unittest.TestLoader().loadTestsFromTestCase(TestMathDuration)
+
+
+def create_datetestcase(start, tdelta, duration):
+    """
+    Create a TestCase class for a specific test.
+
+    This allows having a separate TestCase for each test tuple from the
+    DATE_TEST_CASES list, so that a failed test won't stop other tests.
+    """
+
+    class TestDateCalc(unittest.TestCase):
+        '''
+        A test case template test addition, subtraction
+        operators for Duration objects.
+        '''
+
+        def test_add(self):
+            '''
+            Test operator +.
+            '''
+            self.assertEqual(start + tdelta, start + duration)
+
+        def test_sub(self):
+            '''
+            Test operator -.
+            '''
+            self.assertEqual(start - tdelta, start - duration)
+
+    return unittest.TestLoader().loadTestsFromTestCase(TestDateCalc)
+
+
+def create_datecalctestcase(start, duration, expectation):
+    """
+    Create a TestCase class for a specific test.
+
+    This allows having a separate TestCase for each test tuple from the
+    DATE_CALC_TEST_CASES list, so that a failed test won't stop other tests.
+    """
+
+    class TestDateCalc(unittest.TestCase):
+        '''
+        A test case template test addition operators for Duration objects.
+        '''
+
+        def test_calc(self):
+            '''
+            Test operator +.
+            '''
+            if expectation is None:
+                self.assertRaises(ValueError, operator.add, start, duration)
+            else:
+                self.assertEqual(start + duration, expectation)
+
+    return unittest.TestLoader().loadTestsFromTestCase(TestDateCalc)
+
+
+def create_datemultestcase(operand1, operand2, expectation):
+    """
+    Create a TestCase class for a specific test.
+
+    This allows having a separate TestCase for each test tuple from the
+    DATE_CALC_TEST_CASES list, so that a failed test won't stop other tests.
+    """
+
+    class TestDateMul(unittest.TestCase):
+        '''
+        A test case template test addition operators for Duration objects.
+        '''
+
+        def test_mul(self):
+            '''
+            Test operator *.
+            '''
+            self.assertEqual(operand1 * operand2, expectation)
+
+    return unittest.TestLoader().loadTestsFromTestCase(TestDateMul)
+
+
+def test_suite():
+    '''
+    Return a test suite containing all test defined above.
+    '''
+    suite = unittest.TestSuite()
+    for durationstring, (expectation, format,
+                         altstr) in PARSE_TEST_CASES.items():
+        suite.addTest(create_parsetestcase(durationstring, expectation,
+                                           format, altstr))
+    for testdata in MATH_TEST_CASES:
+        suite.addTest(create_mathtestcase(*testdata))
+    for testdata in DATE_TEST_CASES:
+        suite.addTest(create_datetestcase(*testdata))
+    for testdata in DATE_CALC_TEST_CASES:
+        suite.addTest(create_datecalctestcase(*testdata))
+    for testdata in DATE_MUL_TEST_CASES:
+        suite.addTest(create_datemultestcase(*testdata))
+    suite.addTest(unittest.TestLoader().loadTestsFromTestCase(DurationTest))
+    return suite
+
+
+# load_tests Protocol
+def load_tests(loader, tests, pattern):
+    return test_suite()
+
+
+if __name__ == '__main__':
+    unittest.main(defaultTest='test_suite')