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Fixed #29500 -- Fixed SQLite function crashes on null values.

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Co-authored-by: Srinivas Reddy Thatiparthy <thatiparthysreenivas@gmail.com>
Co-authored-by: Nick Pope <nick.pope@flightdataservices.com>
This commit is contained in:
Srinivas Reddy Thatiparthy 2018-07-01 02:19:20 +05:30 • committed by Tim Graham
parent 76dfa834e7
commit 34d6bceec4
29 changed files with 272 additions and 38 deletions
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4
tests/db_functions/text/test_repeat.py
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@ -1,3 +1,4 @@
from django.db import connection
from django.db.models import CharField, Value
from django.db.models.functions import Length, Repeat
from django.test import TestCase
@ -8,11 +9,14 @@ from ..models import Author
class RepeatTests(TestCase):
def test_basic(self):
Author.objects.create(name='John', alias='xyz')
none_value = '' if connection.features.interprets_empty_strings_as_nulls else None
tests = (
(Repeat('name', 0), ''),
(Repeat('name', 2), 'JohnJohn'),
(Repeat('name', Length('alias'), output_field=CharField()), 'JohnJohnJohn'),
(Repeat(Value('x'), 3, output_field=CharField()), 'xxx'),
(Repeat('name', None), none_value),
(Repeat('goes_by', 1), none_value),
)
for function, repeated_text in tests:
with self.subTest(function=function):