-perm: Handle permcopy (e.g. u=rw,g=u) correctly

1 files changed, 5 insertions, 0 deletions

diff --git a/tests.sh b/tests.sh
index c518f33..2fce23b 100755
--- a/tests.sh
+++ b/tests.sh
@@ -164,6 +164,7 @@ posix_tests=(
     test_perm_symbolic
     test_perm_symbolic_minus
     test_perm_leading_plus_symbolic_minus
+    test_permcopy
     test_ok_stdin
     test_parens
     test_bang
@@ -833,6 +834,10 @@ function test_perm_octal_plus() {
     ! $BFS perms -perm +777 2>/dev/null
 }
 
+function test_permcopy() {
+    bfs_diff perms -perm u+rw,g+u-w,o=g
+}
+
 function test_ok_stdin() {
     # -ok should *not* close stdin
     # See https://savannah.gnu.org/bugs/?24561