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gh-95672 skip fcntl when pipesize is smaller than pagesize #102163

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Merged
merged 13 commits into from
Mar 1, 2023
Merged

gh-95672 skip fcntl when pipesize is smaller than pagesize #102163

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a3e90fc
skip fcntl when pipesize is smaller than pagesize
hyeongyun0916 Feb 23, 2023
89cc89f
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hyeongyun0916 Feb 24, 2023
81a7ac4
Merge branch 'main' into test-fcntcl-skip-when-smaller-than-pagesize
hyeongyun0916 Feb 24, 2023
aa752c6
apply review
hyeongyun0916 Feb 25, 2023
f8fb6dd
Merge branch 'main' into test-fcntcl-skip-when-smaller-than-pagesize
hyeongyun0916 Feb 25, 2023
ec6a0cf
Merge branch 'main' into test-fcntcl-skip-when-smaller-than-pagesize
hyeongyun0916 Feb 27, 2023
eea71c3
add get_pagesize to test.support
hyeongyun0916 Mar 1, 2023
0464b45
Merge branch 'main' into test-fcntcl-skip-when-smaller-than-pagesize
hyeongyun0916 Mar 1, 2023
ca6a96e
Update Lib/test/support/__init__.py
hyeongyun0916 Mar 1, 2023
e14a345
Update Lib/test/support/__init__.py
hyeongyun0916 Mar 1, 2023
d5c4006
Update Doc/library/test.rst
hyeongyun0916 Mar 1, 2023
60fe601
apply reivew
hyeongyun0916 Mar 1, 2023
bf11762
Merge branch 'main' into test-fcntcl-skip-when-smaller-than-pagesize
hyeongyun0916 Mar 1, 2023
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4 changes: 3 additions & 1 deletion Lib/test/test_fcntl.py
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@
import struct
import sys
import unittest
import resource
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@hyeongyun0916 resource module looks like not available on Windows platform.

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I'll add a function to the test support.

from test.support import verbose, cpython_only
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Suggested change
from test.support import verbose, cpython_only
from test.support import verbose, cpython_only, get_pagesize

from test.support.import_helper import import_module
from test.support.os_helper import TESTFN, unlink
Expand Down Expand Up @@ -201,7 +202,8 @@ def test_fcntl_f_pipesize(self):
# Get the default pipesize with F_GETPIPE_SZ
pipesize_default = fcntl.fcntl(test_pipe_w, fcntl.F_GETPIPE_SZ)
pipesize = pipesize_default // 2 # A new value to detect change.
if pipesize < 512: # the POSIX minimum
pagesize_default = resource.getpagesize()
if pipesize < pagesize_default: # the POSIX minimum
raise unittest.SkipTest(
'default pipesize too small to perform test.')
fcntl.fcntl(test_pipe_w, fcntl.F_SETPIPE_SZ, pipesize)
Expand Down
4 changes: 3 additions & 1 deletion Lib/test/test_subprocess.py
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@
import textwrap
import json
import pathlib
import resource
from test.support.os_helper import FakePath

try:
Expand Down Expand Up @@ -717,7 +718,8 @@ def test_pipesizes(self):
os.close(test_pipe_r)
os.close(test_pipe_w)
pipesize = pipesize_default // 2
if pipesize < 512: # the POSIX minimum
pagesize_default = resource.getpagesize()
if pipesize < pagesize_default: # the POSIX minimum
raise unittest.SkipTest(
'default pipesize too small to perform test.')
p = subprocess.Popen(
Expand Down