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gh-108963: using random to generate unique string in sys.intern test #109491

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Merged
merged 6 commits into from
Oct 2, 2023
Merged

gh-108963: using random to generate unique string in sys.intern test #109491

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bdcae08
using random to generate unique string in sys.intern test
aisk Sep 16, 2023
1653d05
remove float in intern test
aisk Sep 19, 2023
a586b39
fix test cases
aisk Sep 19, 2023
4978df9
using random.randrange instead of random.randint and increase range
aisk Sep 19, 2023
785393d
using 9 digits random range in intern test
aisk Sep 21, 2023
14008d9
Merge branch 'main' into fix-gh108963
vstinner Oct 2, 2023
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13 changes: 3 additions & 10 deletions Lib/test/test_sys.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@
import locale
import operator
import os
import random
import struct
import subprocess
import sys
Expand All @@ -30,10 +31,6 @@ def requires_subinterpreters(meth):
'subinterpreters required')(meth)


# 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 @@ -696,10 +693,8 @@ 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 All @@ -717,9 +712,7 @@ def __hash__(self):

@requires_subinterpreters
def test_subinterp_intern_dynamically_allocated(self):
global INTERN_NUMRUNS
INTERN_NUMRUNS += 1
s = "never interned before" + str(INTERN_NUMRUNS)
s = "never interned before" + str(random.randrange(0, 10**9))
t = sys.intern(s)
self.assertIs(t, s)

Expand Down