Fixed #27699 -- Added negative timedelta support to parse_duration()

1 files changed, 4 insertions, 0 deletions

diff --git a/tests/utils_tests/test_dateparse.py b/tests/utils_tests/test_dateparse.py
index ee4f907b55..0bb81ed0b0 100644
--- a/tests/utils_tests/test_dateparse.py
+++ b/tests/utils_tests/test_dateparse.py
@@ -108,6 +108,10 @@ class DurationParseTests(unittest.TestCase):
 
     def test_negative(self):
         self.assertEqual(parse_duration('-4 15:30'), timedelta(days=-4, minutes=15, seconds=30))
+        self.assertEqual(parse_duration('-172800'), timedelta(days=-2))
+        self.assertEqual(parse_duration('-15:30'), timedelta(minutes=-15, seconds=30))
+        self.assertEqual(parse_duration('-1:15:30'), timedelta(hours=-1, minutes=15, seconds=30))
+        self.assertEqual(parse_duration('-30.1'), timedelta(seconds=-30, milliseconds=-100))
 
     def test_iso_8601(self):
         self.assertIsNone(parse_duration('P4Y'))