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Refs #27149 -- Based recursive nested subquery detection on sys.getrecursionlimit().

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This makes sure the test_avoid_infinite_loop_on_too_many_subqueries test
doesn't fail on systems with a non-default recursion limit.
This commit is contained in:
Simon Charette 2019-04-05 00:37:58 -04:00 • committed by Mariusz Felisiak
parent 9ac8520fcd
commit c0969ee227
2 changed files with 9 additions and 3 deletions
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5
tests/queries/tests.py
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@ -1,5 +1,6 @@
import datetime
import pickle
import sys
import unittest
from operator import attrgetter
@ -402,10 +403,10 @@ class Queries1Tests(TestCase):
def test_avoid_infinite_loop_on_too_many_subqueries(self):
x = Tag.objects.filter(pk=1)
local_recursion_limit = 67
local_recursion_limit = sys.getrecursionlimit() // 16
msg = 'Maximum recursion depth exceeded: too many subqueries.'
with self.assertRaisesMessage(RuntimeError, msg):
for i in range(local_recursion_limit * 2):
for i in range(local_recursion_limit + 2):
x = Tag.objects.filter(pk__in=x)
def test_reasonable_number_of_subq_aliases(self):