From: Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com>
Date: Mon, 18 Nov 2024 13:33:53 +0000 (+0100)
Subject: [3.13] gh-126909: Fix running xattr tests on systems with lower limits (GH-126930... 
X-Git-Tag: v3.13.1~89
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=1fbd84bf6887243f51b2ad95241a183ce547aea5;p=thirdparty%2FPython%2Fcpython.git

[3.13] gh-126909: Fix running xattr tests on systems with lower limits (GH-126930) (#126965)

gh-126909: Fix running xattr tests on systems with lower limits (GH-126930)

Modify the extended attribute tests to write fewer and smaller extended
attributes, in order to fit within filesystems with total xattr limit
of 1 KiB (e.g. ext4 with 1 KiB blocks).  Previously, the test would
write over 2 KiB, making it fail with ENOSPC on such systems.
(cherry picked from commit 2c0a21c1aad65ab8362491acf856eb574b1257ad)

Co-authored-by: Michał Górny <mgorny@gentoo.org>
---

diff --git a/Lib/test/test_os.py b/Lib/test/test_os.py
index 7f6855866dfd..98fcffb3f58e 100644
--- a/Lib/test/test_os.py
+++ b/Lib/test/test_os.py
@@ -3917,10 +3917,10 @@ class ExtendedAttributeTests(unittest.TestCase):
         xattr.remove("user.test")
         self.assertEqual(set(listxattr(fn)), xattr)
         self.assertEqual(getxattr(fn, s("user.test2"), **kwargs), b"foo")
-        setxattr(fn, s("user.test"), b"a"*1024, **kwargs)
-        self.assertEqual(getxattr(fn, s("user.test"), **kwargs), b"a"*1024)
+        setxattr(fn, s("user.test"), b"a"*256, **kwargs)
+        self.assertEqual(getxattr(fn, s("user.test"), **kwargs), b"a"*256)
         removexattr(fn, s("user.test"), **kwargs)
-        many = sorted("user.test{}".format(i) for i in range(100))
+        many = sorted("user.test{}".format(i) for i in range(32))
         for thing in many:
             setxattr(fn, thing, b"x", **kwargs)
         self.assertEqual(set(listxattr(fn)), set(init_xattr) | set(many))
diff --git a/Misc/NEWS.d/next/Tests/2024-11-17-16-56-48.gh-issue-126909.60VTxW.rst b/Misc/NEWS.d/next/Tests/2024-11-17-16-56-48.gh-issue-126909.60VTxW.rst
new file mode 100644
index 000000000000..68bd9ac70cd1
--- /dev/null
+++ b/Misc/NEWS.d/next/Tests/2024-11-17-16-56-48.gh-issue-126909.60VTxW.rst
@@ -0,0 +1,2 @@
+Fix test_os extended attribute tests to work on filesystems with 1 KiB xattr size
+limit.