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open Data_encoding

let test1 () =
  match check_size (-1) string with
  | exception Invalid_argument _ -> ()
  | e -> (
      let v = "12345" in
      match Binary.to_string e v with
      | Error Size_limit_exceeded -> ()
      | Error _ -> failwith "different error than expected"
      | Ok _ -> failwith "unexcepted success")

let test2 () =
  match check_size (-2) string with
  | exception Invalid_argument _ -> ()
  | e -> (
      let v = "12345" in
      match Binary.to_string e v with
      | Error Size_limit_exceeded -> ()
      | Error _ -> failwith "different error than expected"
      | Ok _ -> failwith "unexcepted success")

let test3 () =
  let v = "12345" in
  let s = Binary.to_string_exn string v in
  match check_size (-1) string with
  | exception Invalid_argument _ -> ()
  | e -> (
      match Binary.of_string e s with
      | Error Size_limit_exceeded -> ()
      | Error _ -> failwith "different error than expected"
      | Ok _ -> failwith "unexcepted success")

let tests =
  [
    ("write fails", `Quick, test1);
    ("write fails (with -2)", `Quick, test2);
    ("read fails", `Quick, test3);
  ]