tests/libtest: check that we have setfattr

We use `setfattr` to determine whether the filesystem we're on supports
xattrs, but we need to check that `setfattr` itself is available. We
just make it a hard requirement but only if trying to run tests that ask
about xattr support.

Closes: #1207
Approved by: cgwalters

diff --git a/tests/libtest.sh b/tests/libtest.sh
index 2b30e654596220e704e4ec263b47ca9033134a95..9bfc199f4f93861120e5e38ad50d88226c6a2da7 100755 (executable)
--- a/tests/libtest.sh
+++ b/tests/libtest.sh
@@ -517,6 +517,9 @@ os_repository_new_commit ()
 # Usage: if ! skip_one_without_user_xattrs; then ... more tests ...; fi
 _have_user_xattrs=''
 have_user_xattrs() {
+    if ! which setfattr 2>/dev/null; then
+        fatal "no setfattr available to determine xattr support"
+    fi
     if test "${_have_user_xattrs}" = ''; then
         touch test-xattrs
         if setfattr -n user.testvalue -v somevalue test-xattrs 2>/dev/null; then