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[3.12] gh-108963: using random to generate unique string in sys.intern test … #110216

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Merged
merged 1 commit into from
Oct 2, 2023
Merged

[3.12] gh-108963: using random to generate unique string in sys.intern test … #110216

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9 changes: 2 additions & 7 deletions Lib/test/test_sys.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@
import locale
import operator
import os
import random
import struct
import subprocess
import sys
Expand All @@ -19,10 +20,6 @@
import warnings


# count the number of test runs, used to create unique
# strings to intern in test_intern()
INTERN_NUMRUNS = 0

DICT_KEY_STRUCT_FORMAT = 'n2BI2n'

class DisplayHookTest(unittest.TestCase):
Expand Down Expand Up @@ -685,10 +682,8 @@ def test_43581(self):
self.assertEqual(sys.__stdout__.encoding, sys.__stderr__.encoding)

def test_intern(self):
global INTERN_NUMRUNS
INTERN_NUMRUNS += 1
self.assertRaises(TypeError, sys.intern)
s = "never interned before" + str(INTERN_NUMRUNS)
s = "never interned before" + str(random.randrange(0, 10**9))
self.assertTrue(sys.intern(s) is s)
s2 = s.swapcase().swapcase()
self.assertTrue(sys.intern(s2) is s)
Expand Down