open Stdune open Dune_tests_common let () = init () (* Check that [of_alist_multi] groups elements in the right order *) let%expect_test _ = let open Dyn in String.Map.of_list_multi [ "a", 1; "b", 1; "a", 2; "a", 3; "b", 2 ] |> String.Map.to_dyn (list int) |> print_dyn; [%expect {| map { "a" : [ 1; 2; 3 ]; "b" : [ 1; 2 ] } |}] ;;