diff options
| author | Serhiy Storchaka <storchaka@gmail.com> | 2017-12-15 14:11:43 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-12-15 14:11:43 +0200 |
| commit | 2e3f5701858d1fc04caedefdd9a8ea43810270d2 (patch) | |
| tree | e1c92b967a8f0935f65139338f4b7c170609c46e /Lib/test/test_memoryio.py | |
| parent | a5552f023e1d8cbafee1e51d316cc581deb2295f (diff) | |
| download | cpython-2e3f5701858d1fc04caedefdd9a8ea43810270d2.tar.gz cpython-2e3f5701858d1fc04caedefdd9a8ea43810270d2.zip | |
bpo-30416: Protect the optimizer during constant folding. (#4860)
It no longer spends much time doing complex calculations and no
longer consumes much memory for creating large constants that will
be dropped later.
This fixes also bpo-21074.
Diffstat (limited to 'Lib/test/test_memoryio.py')
| -rw-r--r-- | Lib/test/test_memoryio.py | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Lib/test/test_memoryio.py b/Lib/test/test_memoryio.py index e16c57e9435..cd2faba1791 100644 --- a/Lib/test/test_memoryio.py +++ b/Lib/test/test_memoryio.py @@ -759,7 +759,8 @@ class CBytesIOTest(PyBytesIOTest): check = self.check_sizeof self.assertEqual(object.__sizeof__(io.BytesIO()), basesize) check(io.BytesIO(), basesize ) - check(io.BytesIO(b'a' * 1000), basesize + sys.getsizeof(b'a' * 1000)) + n = 1000 # use a variable to prevent constant folding + check(io.BytesIO(b'a' * n), basesize + sys.getsizeof(b'a' * n)) # Various tests of copy-on-write behaviour for BytesIO. |