// SPDX-FileCopyrightText: © 2024 LEDGER SAS
// SPDX-License-Identifier: Apache-2.0

import BigNumber from 'bignumber.js'
import { fromBigNumberToBigInt } from './utils'

describe('bigNumberToBigInt', () => {
  it('should convert BigNumber to BigInt', () => {
    const bigNumber = new BigNumber('42')
    const result = fromBigNumberToBigInt(bigNumber)
    expect(result).toEqual(BigInt('42'))
  })

  it('should return the default value if input is undefined', () => {
    const value = undefined
    const defaultValue = BigInt(12)
    const result = fromBigNumberToBigInt(value, defaultValue)
    expect(result).toEqual(defaultValue)
  })
  it('should convert to BigInt for very large numbers', () => {
    const valueStr = '1234567890123456789012345678901234567890'
    const valBignumber = new BigNumber(valueStr)
    const valBigint = fromBigNumberToBigInt(valBignumber)
    expect(valBigint).toEqual(BigInt(valueStr))
  })
})