update

tests/TC138-acl-linux-order-and-empty-header.md

@@ -0,0 +1,27 @@
+# Test Case: Linux ACL order and empty header
+
+**Test ID**: TC138-acl-linux-order-and-empty-header
+**Fixture**: `basic.erofs`
+
+## Objective
+
+Accept Linux ACL tag phases without sorting named IDs, treat a version-only
+header as mode fallback, and reject duplicate IDs, bad phase, and bad perms.
+The manifest must record rebuilt xattr bodies and `i_xattr_icount` fields.
+
+## Manual steps
+
+```sh
+getfacl -n /mnt/repo22-g4/acl-unordered
+getfacl -n /mnt/repo22-g4/acl-header
+truss -o /tmp/tc138-duplicate.truss getfacl -n \
+  /mnt/repo22-g4/acl-duplicate
+truss -o /tmp/tc138-phase.truss getfacl -n /mnt/repo22-g4/acl-phase
+truss -o /tmp/tc138-perm.truss getfacl -n /mnt/repo22-g4/acl-perm
+grep __acl_get_file /tmp/tc138-*.truss
+```
+
+## Expected results
+
+The first ACL lists user 3002 before 2002. Header-only output is mode-derived
+`rw-/r--/r--`. All three malformed ACLs return `EINTEGRITY` (97). Clean up.