From: Pádraig Brady <P@draigBrady.com>
Date: Sun, 21 Sep 2025 12:45:54 +0000 (+0100)
Subject: tests: tail: avoid false failure with overlayfs
X-Git-Tag: v9.8~11
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=076e24741685d0041d81f53fd32dc7f5878b22a9;p=thirdparty%2Fcoreutils.git

tests: tail: avoid false failure with overlayfs

* tests/tail/inotify-dir-recreate.sh: Add an extra check
that inotify is in use, as it's required for this test.
Inotify is avoided with overlayfs for which the
df --local check is not sufficient exclusion for.
---

diff --git a/tests/tail/inotify-dir-recreate.sh b/tests/tail/inotify-dir-recreate.sh
index e99abd842f..569a3b1aa7 100755
--- a/tests/tail/inotify-dir-recreate.sh
+++ b/tests/tail/inotify-dir-recreate.sh
@@ -24,6 +24,14 @@ print_ver_ tail
 grep '^#define HAVE_INOTIFY 1' "$CONFIG_HEADER" >/dev/null && is_local_dir_ . \
   || skip_ 'inotify is not supported'
 
+# There may be a mismatch between is_local_dir_ (gnulib's remoteness check),
+# and coreutils' is_local_fs_type(), so double check we're using inotify.
+touch file.strace
+require_strace_ 'inotify_add_watch'
+returns_ 124 timeout .1 strace -e inotify_add_watch -o strace.out \
+  tail -F file.strace || fail=1
+grep 'inotify' strace.out || skip_ 'inotify not detected'
+
 # Terminate any background tail process
 cleanup_() { kill $pid 2>/dev/null && wait $pid; }