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| author | Victor Stinner <vstinner@python.org> | 2023-10-01 20:43:57 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-10-01 20:43:57 (GMT) |
| commit | 86084d001f3b4ecc1892fd05bb0626db0228c3cc (patch) | |
| tree | 36205e222838df72156aae9f991c1a7b3a27e3d2 /Lib/test/string_tests.py | |
| parent | 0914b13ba5f216e79341430a4fb6d2f2e04bdce8 (diff) | |
| download | cpython-86084d001f3b4ecc1892fd05bb0626db0228c3cc.zip cpython-86084d001f3b4ecc1892fd05bb0626db0228c3cc.tar.gz cpython-86084d001f3b4ecc1892fd05bb0626db0228c3cc.tar.bz2 | |
[3.11] gh-110160: Fix flaky `test_find_periodic_pattern` in `string_tests` (… (#110183)
gh-110160: Fix flaky `test_find_periodic_pattern` in `string_tests` (#110170)
(cherry picked from commit 06faa9a39bd93c5e7999d52b52043ecdd0774dac)
Co-authored-by: Nikita Sobolev <mail@sobolevn.me>
Diffstat (limited to 'Lib/test/string_tests.py')
| -rw-r--r-- | Lib/test/string_tests.py | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/Lib/test/string_tests.py b/Lib/test/string_tests.py index d69edd7..fdced1c 100644 --- a/Lib/test/string_tests.py +++ b/Lib/test/string_tests.py @@ -327,11 +327,12 @@ class BaseTest: for i in range(len(s)): if s.startswith(p, i): return i + if p == '' and s == '': + return 0 return -1 - rr = random.randrange - choices = random.choices - for _ in range(1000): + def check_pattern(rr): + choices = random.choices p0 = ''.join(choices('abcde', k=rr(10))) * rr(10, 20) p = p0[:len(p0) - rr(10)] # pop off some characters left = ''.join(choices('abcdef', k=rr(2000))) @@ -341,6 +342,13 @@ class BaseTest: self.checkequal(reference_find(p, text), text, 'find', p) + rr = random.randrange + for _ in range(1000): + check_pattern(rr) + + # Test that empty string always work: + check_pattern(lambda *args: 0) + def test_find_shift_table_overflow(self): """When the table of 8-bit shifts overflows.""" N = 2**8 + 100 |