tests: fuse: use stat instead of relying on "ls -l" output

On my Fedora 31 system, this currently fails because the test
expects the file mode bits to be printed as "-rw-r--r--" but
I get "-rw-r--r--." instead, perhaps due to selinux.

Fix this to use stat --format instead to extract the bits we
want to check here (user, group, mode, timestamp).

While at it, I noticed that this test has some confusion with
timezones and only worked because 'ls -l' doesn't show the
time in this case since the file is so old. Fix that by making
_everything_ here use UTC, instead of just some parts.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
(cherry picked from commit c38e02f0f5daa4ddf4d2c0a553d717d1f3ad02e5)
Tested-by: Rob Browning <rlb@defaultvalue.org>

diff --git a/t/test-fuse.sh b/t/test-fuse.sh
index 4603e80f79e3b3a57a3073c440fd38d41302ed94..1732d66f2b3c4b71de209e8dd335adf3ef787df8 100755 (executable)
--- a/t/test-fuse.sh
+++ b/t/test-fuse.sh
@@ -44,6 +44,8 @@ savename()
        print strftime('%Y-%m-%d-%H%M%S', localtime($secs))"
 }
 
+export TZ=UTC
+
 WVPASS bup init
 WVPASS cd "$tmpdir"
 
@@ -93,12 +95,12 @@ WVPASS fusermount -uz mnt
 
 WVSTART "extended metadata"
 WVPASS bup fuse --meta mnt
-result=$(TZ=UTC LC_ALL=C WVPASS ls -l mnt/src/latest/) || exit $?
 readonly user=$(WVPASS id -un) || $?
 readonly group=$(WVPASS id -gn) || $?
-WVPASSEQ "$result" "total 1
--rw-r--r-- 1 $user $group 8 Nov 11  2011 foo
--rw-r--r-- 1 $user $group 8 Jan  1  1970 pre-epoch"
+result="$(stat --format='%A %U %G %x' mnt/src/latest/foo)"
+WVPASSEQ "$result" "-rw-r--r-- $user $group 2011-11-11 11:11:00.000000000 +0000"
+result="$(stat --format='%A %U %G %x' mnt/src/latest/pre-epoch)"
+WVPASSEQ "$result" "-rw-r--r-- $user $group 1970-01-01 00:00:00.000000000 +0000"
 
 WVPASS fusermount -uz mnt
 WVPASS rm -rf "$tmpdir"