TODO

- mnemonic and ICAP support
- check ethUtils.hashPersonalMessage
- maybe ICAP check toChecksumAddress + isValidChecksumAddress


describe('message sig', function () {
  const r = Buffer.from('99e71a99cb2270b8cac5254f9e99b6210c6c10224a1579cf389ef88b20a1abe9', 'hex')
  const s = Buffer.from('129ff05af364204442bdb53ab6f18a99ab48acc9326fa689f228040429e3ca66', 'hex')

  it('should return hex strings that the RPC can use', function () {
    assert.equal(ethUtils.toRpcSig(27, r, s), '0x99e71a99cb2270b8cac5254f9e99b6210c6c10224a1579cf389ef88b20a1abe9129ff05af364204442bdb53ab6f18a99ab48acc9326fa689f228040429e3ca6600')
    assert.deepEqual(ethUtils.fromRpcSig('0x99e71a99cb2270b8cac5254f9e99b6210c6c10224a1579cf389ef88b20a1abe9129ff05af364204442bdb53ab6f18a99ab48acc9326fa689f228040429e3ca6600'), {
      v: 27,
      r: r,
      s: s
    })
  })

  it('should throw on invalid length', function () {
    assert.throws(function () {
      ethUtils.fromRpcSig('')
    })
    assert.throws(function () {
      ethUtils.fromRpcSig('0x99e71a99cb2270b8cac5254f9e99b6210c6c10224a1579cf389ef88b20a1abe9129ff05af364204442bdb53ab6f18a99ab48acc9326fa689f228040429e3ca660042')
    })
  })

  it('pad short r and s values', function () {
    assert.equal(ethUtils.toRpcSig(27, r.slice(20), s.slice(20)), '0x00000000000000000000000000000000000000004a1579cf389ef88b20a1abe90000000000000000000000000000000000000000326fa689f228040429e3ca6600')
  })

  it('should throw on invalid v value', function () {
    assert.throws(function () {
      ethUtils.toRpcSig(1, r, s)
    })
  })
})