@bandprotocol/bandchain.js/__tests__/wallet.test.ts

Library for interacting with BandChain in browser and Node.js environments

import { PrivateKey, PublicKey, Address } from '../src/wallet'

const TEST_MNEMONIC =
  'coach pond canoe lake solution empty vacuum term pave toe burst top violin purpose umbrella color disease thrive diamond found track need filter wait'

const TEST_ACC_PUBKEY =
  'bandpub1addwnpepqdg7nrsmuztj2re07svgcz4vuzn3de56nykdwlualepkk05txs5q6mw8s9v'
const TEST_VAL_PUBKEY =
  'bandvaloperpub1addwnpepqdg7nrsmuztj2re07svgcz4vuzn3de56nykdwlualepkk05txs5q69gsm29'
const TEST_CONS_PUBKEY =
  'bandvalconspub1addwnpepqdg7nrsmuztj2re07svgcz4vuzn3de56nykdwlualepkk05txs5q6r8ytws'

const TEST_ACC_ADDRESS = 'band13eznuehmqzd3r84fkxu8wklxl22r2qfmtlth8c'
const TEST_VAL_ADDRESS = 'bandvaloper13eznuehmqzd3r84fkxu8wklxl22r2qfm8f05zn'
const TEST_CONS_ADDRESS = 'bandvalcons13eznuehmqzd3r84fkxu8wklxl22r2qfmn6ugwj'

describe('Private Key', () => {
  it("fromMnemonic with m/44'/494'/0'/0/0", () => {
    const privkey = PrivateKey.fromMnemonic(TEST_MNEMONIC)
    expect(privkey.toHex()).toEqual(
      '2159f40dda9e4c9d8ed9d6f8c353e247a2658993a9d53a94ff17410cd0ea471d',
    )
  })

  it("fromMnemonic with m/44'/494'/0'/0/1", () => {
    const privkey = PrivateKey.fromMnemonic(TEST_MNEMONIC, "m/44'/494'/0'/0/1")

    expect(privkey.toHex()).toEqual(
      '987af53f91a09926274e5a2ef86223356112056f61b35a57df345d7b14176bb3',
    )
  })

  it("generate with m/44'/494'/0'/0/1", () => {
    const [mnemonic, privkey] = PrivateKey.generate("m/44'/494'/0'/0/5")

    expect(
      PrivateKey.fromMnemonic(mnemonic, "m/44'/494'/0'/0/5").toHex(),
    ).toEqual(privkey.toHex())
  })

  it('fromHex', () => {
    expect(
      PrivateKey.fromHex(
        '2159f40dda9e4c9d8ed9d6f8c353e247a2658993a9d53a94ff17410cd0ea471d',
      ).toHex(),
    ).toEqual(
      '2159f40dda9e4c9d8ed9d6f8c353e247a2658993a9d53a94ff17410cd0ea471d',
    )
  })

  it('to public key', () => {
    expect(PrivateKey.fromMnemonic(TEST_MNEMONIC).toPubkey().toHex()).toEqual(
      '0351e98e1be097250f2ff4188c0aace0a716e69a992cd77f9dfe436b3e8b34280d',
    )
  })

  it('sign by private key', () => {
    const privkey = PrivateKey.fromMnemonic(TEST_MNEMONIC)
    expect(
      privkey.sign(Buffer.from('test msg', 'utf-8')).toString('hex'),
    ).toEqual(
      '42a1e41012155ae2daa9b9a2e038f76463da4662564b4989f236ecb4d97f592c1190d92319363e2d1eb78fb98f0dac30c5e2a850f45bb4c44f1f6203ebe6efbe',
    )
  })
})

describe('Public Key', () => {
  it('verify signature', () => {
    const privkey = PrivateKey.fromMnemonic(TEST_MNEMONIC)
    const pubkey = privkey.toPubkey()
    const msg = Buffer.from('test msg', 'utf-8')
    const signature = privkey.sign(msg)

    expect(pubkey.verify(msg, signature)).toBe(true)
  })
  it('public key from bech32', () => {
    expect(PublicKey.fromAccBech32(TEST_ACC_PUBKEY).toHex()).toEqual(
      '0351e98e1be097250f2ff4188c0aace0a716e69a992cd77f9dfe436b3e8b34280d',
    )
    expect(PublicKey.fromValBech32(TEST_VAL_PUBKEY).toHex()).toEqual(
      '0351e98e1be097250f2ff4188c0aace0a716e69a992cd77f9dfe436b3e8b34280d',
    )
    expect(PublicKey.fromConsBech32(TEST_CONS_PUBKEY).toHex()).toEqual(
      '0351e98e1be097250f2ff4188c0aace0a716e69a992cd77f9dfe436b3e8b34280d',
    )
  })

  it('public key to bech32', () => {
    const privkey = PrivateKey.fromMnemonic(TEST_MNEMONIC)
    expect(privkey.toPubkey().toAccBech32()).toEqual(TEST_ACC_PUBKEY)
    expect(privkey.toPubkey().toValBech32()).toEqual(TEST_VAL_PUBKEY)
    expect(privkey.toPubkey().toConsBech32()).toEqual(TEST_CONS_PUBKEY)
  })
})

describe('Address', () => {
  it('Address from bech32', () => {
    expect(Address.fromAccBech32(TEST_ACC_ADDRESS).toHex()).toEqual(
      '8e453e66fb009b119ea9b1b8775be6fa9435013b',
    )
    expect(Address.fromValBech32(TEST_VAL_ADDRESS).toHex()).toEqual(
      '8e453e66fb009b119ea9b1b8775be6fa9435013b',
    )
    expect(Address.fromConsBech32(TEST_CONS_ADDRESS).toHex()).toEqual(
      '8e453e66fb009b119ea9b1b8775be6fa9435013b',
    )
  })

  it('Address to bech32', () => {
    const address = PrivateKey.fromMnemonic(TEST_MNEMONIC)
      .toPubkey()
      .toAddress()
    expect(address.toAccBech32()).toEqual(TEST_ACC_ADDRESS)
    expect(address.toValBech32()).toEqual(TEST_VAL_ADDRESS)
    expect(address.toConsBech32()).toEqual(TEST_CONS_ADDRESS)
  })
})