# Nim Eth-keys
# Copyright (c) 2018 Status Research & Development GmbH
# Licensed under either of
#
#  * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
#  * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
#
# at your option. This file may not be copied, modified, or distributed except according to those terms.

import  ../src/private/[conversion_bytes, conversion_ttmath]
import unittest, ttmath, strutils # TODO remove ttmath needs if backend libsecp256k1


suite "Testing conversion functions: Hex, Bytes, Endianness":
  let
    SECPK1_N_HEX = "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141".toLowerAscii
    SECPK1_N = "115792089237316195423570985008687907852837564279074904382605163141518161494337".u256

  test "hex -> uint256":
    check: SECPK1_N_HEX.hexToUInt256 == SECPK1_N

  test "uint256 -> hex":
    check: SECPK1_N.toHex == SECPK1_N_HEX

  test "hex -> big-endian array -> uint256":
    check: hexToByteArrayBE[32](SECPK1_N_HEX).readUint256BE == SECPK1_N

  test "uint256 -> big-endian array -> hex":
    check: SECPK1_N.toByteArrayBE.toHex == SECPK1_N_HEX