open Stdune let%expect_test "is_root" = [ ""; "."; "/"; "foo/bar"; "/foo" ] |> List.iter ~f:(fun path -> printfn "Fpath.is_root %S = %b" path (Fpath.is_root path)); [%expect {| Fpath.is_root "" = false Fpath.is_root "." = true Fpath.is_root "/" = true Fpath.is_root "foo/bar" = false Fpath.is_root "/foo" = false |}] ;;