status-im/status-go

package bigint

import (
    "encoding/json"
    "math/big"
    "testing"

    "github.com/stretchr/testify/require"
)

func TestMarshalUnmarshal(t *testing.T) {
    inputString := "0x09abc5177d51c36ef4c6a36197d023b60d8fec0100000000000001000000000a"
    inputInt := new(big.Int)
    inputInt.SetString(inputString[2:], 16)

    inputBytes, err := json.Marshal(inputString)

    require.NoError(t, err)

    u := new(HexBigInt)
    err = u.UnmarshalJSON(inputBytes)

    require.NoError(t, err)
    require.Equal(t, inputInt, u.Int)
}