Issue #15747: skip chflags UF_IMMUTABLE tests if EOPNOTSUPP is raised.
This is necessary for ZFS systems, which don't support UF_IMMUTABLE.
(Note: this commit is a manual merge of 78699:019a2390b014 as both
_test_chflags_regular_file and test_lchflags_symlink differ between
3.2 and default.)
diff --git a/Misc/NEWS b/Misc/NEWS
index 29d11f3..4082507 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -86,6 +86,10 @@
Tests
-----
+- Issue #15747: ZFS always returns EOPNOTSUPP when attempting to set the
+ UF_IMMUTABLE flag (via either chflags or lchflags); refactor affected
+ tests in test_posix.py to account for this.
+
- Issue #15285: Refactor the approach for testing connect timeouts using
two external hosts that have been configured specifically for this type
of test.