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-rw-r--r--tests/db_functions/datetime/test_extract_trunc.py12
1 files changed, 12 insertions, 0 deletions
diff --git a/tests/db_functions/datetime/test_extract_trunc.py b/tests/db_functions/datetime/test_extract_trunc.py
index f898ba5253..a842eb9418 100644
--- a/tests/db_functions/datetime/test_extract_trunc.py
+++ b/tests/db_functions/datetime/test_extract_trunc.py
@@ -1111,6 +1111,18 @@ class DateFunctionWithTimeZoneTests(DateFunctionTests):
self.assertEqual(model.day_melb, 16)
self.assertEqual(model.day_utc, 15)
+ def test_extract_invalid_field_with_timezone(self):
+ melb = pytz.timezone('Australia/Melbourne')
+ msg = 'tzinfo can only be used with DateTimeField.'
+ with self.assertRaisesMessage(ValueError, msg):
+ DTModel.objects.annotate(
+ day_melb=Extract('start_date', 'day', tzinfo=melb),
+ ).get()
+ with self.assertRaisesMessage(ValueError, msg):
+ DTModel.objects.annotate(
+ hour_melb=Extract('start_time', 'hour', tzinfo=melb),
+ ).get()
+
def test_trunc_timezone_applied_before_truncation(self):
start_datetime = datetime(2016, 1, 1, 1, 30, 50, 321)
end_datetime = datetime(2016, 6, 15, 14, 10, 50, 123)