tests: UnmountErr: count the fds if we detect a leak

1 files changed, 1 insertions, 1 deletions

diff --git a/tests/test_helpers/mount_unmount.go b/tests/test_helpers/mount_unmount.go
index 3927dd5..475dd1c 100644
--- a/tests/test_helpers/mount_unmount.go
+++ b/tests/test_helpers/mount_unmount.go
@@ -191,7 +191,7 @@ func UnmountErr(dir string) (err error) {
 		err = cmd.Run()
 		if err == nil {
 			if len(fdsNow) > len(fds)+maxCacheFds {
-				return fmt.Errorf("fd leak in gocryptfs process? pid=%d dir=%q, fds:\nold=%v \nnew=%v", pid, dir, fds, fdsNow)
+				return fmt.Errorf("fd leak in gocryptfs process? pid=%d dir=%q, fds:\nold=%d:%v \nnew=%d:%v", pid, dir, len(fds), fds, len(fdsNow), fdsNow)
 			}
 			return nil
 		}