cipher-ethereum/src/Address.test.ts

An Ethereum library used by Cipher Browser, a mobile Ethereum client

import { Address } from './Address'

describe('from', () => {
  test('derives an Ethereum address from a given compressed public key', () => {
    const testCases: { [key: string]: string } = {
      '028a8c59fa27d1e0f1643081ff80c3cf0392902acbf76ab0dc9c414b8d115b0ab3':
        '0xD11A13f484E2f2bD22d93c3C3131f61c05E876a9',
      '024ff6fdcb22e9f6a6e2efa88df7e97120883874a6c127b0decc01be7ebfde9289':
        '0xEA6695e4F122822C51B711D0f3d6CcaF1D9F5579',
      '0360176e6591e6782fc4efdc3d0bd26882ccbb42217c6c52cb28cd75e542b8849c':
        '0x0bFD0a556b97EDf81e2ACC5fAd6d642e338AbC58',
      '03c4252fcb1ef1298b213f7158c9d53030337bff3c91865754cd8e145132dc6d53':
        '0x000bF7ebE7f830F0a682FC4d2931c12716F7ba65',
      '037d267213eaf480b638a017657b97998c8d2be26ae236fc4301c6eed756e52ce4':
        '0x0000de016A766eA5dE351835912b92696225f916'
    }

    Object.keys(testCases).forEach(hex => {
      const publicKey = Buffer.from(hex, 'hex')
      const address = testCases[hex]
      const ea = Address.from(publicKey)
      expect(ea.address).toBe(address)
      expect(ea.rawAddress.toString('hex')).toBe(address.slice(2).toLowerCase())
    })
  })

  test('derives an Ethereum address from a given uncompressed public key', () => {
    const testCases: { [key: string]: string } = {
      '048a8c59fa27d1e0f1643081ff80c3cf0392902acbf76ab0dc9c414b8d115b0ab3ab95ca5cc375db4bfa147cf4c1742b67ade817160bb3a776498e8e185cb06be2':
        '0xD11A13f484E2f2bD22d93c3C3131f61c05E876a9',
      '044ff6fdcb22e9f6a6e2efa88df7e97120883874a6c127b0decc01be7ebfde9289bdc3d2656abab51f96f87507b9159844e6e5b205c348ec28717bfcfb49fea6c4':
        '0xEA6695e4F122822C51B711D0f3d6CcaF1D9F5579',
      '0460176e6591e6782fc4efdc3d0bd26882ccbb42217c6c52cb28cd75e542b8849c955e8cc1e7a811ac89673c4658883a0255927d6f85168b8b6d941f6913a2892f':
        '0x0bFD0a556b97EDf81e2ACC5fAd6d642e338AbC58',
      '04c4252fcb1ef1298b213f7158c9d53030337bff3c91865754cd8e145132dc6d5327e8f1dbc307d7b9e880dab9af3cb48153c2636c5f768b5a3d4657017c7a4035':
        '0x000bF7ebE7f830F0a682FC4d2931c12716F7ba65',
      '047d267213eaf480b638a017657b97998c8d2be26ae236fc4301c6eed756e52ce4710a85bba8972095047f10615040da9984626fa394ea3230604222629a3c28af':
        '0x0000de016A766eA5dE351835912b92696225f916'
    }

    Object.keys(testCases).forEach(hex => {
      const publicKey = Buffer.from(hex, 'hex')
      const address = testCases[hex]
      const ea = Address.from(publicKey)
      expect(ea.address).toBe(address)
      expect(ea.rawAddress.toString('hex')).toBe(address.slice(2).toLowerCase())
    })
  })
})

describe('checksumAddress', () => {
  test('converts an address to a mixed-case checksum address', () => {
    const testCases: { [key: string]: string } = {
      '0x5aaeb6053f3e94c9b9a09f33669435e7ef1beaed':
        '0x5aAeb6053F3E94C9b9A09f33669435E7Ef1BeAed',
      '0xfb6916095ca1df60bb79ce92ce3ea74c37c5d359':
        '0xfB6916095ca1df60bB79Ce92cE3Ea74c37c5d359',
      '0xdbf03b407c01e7cd3cbea99509d93f8dddc8c6fb':
        '0xdbF03B407c01E7cD3CBea99509d93f8DDDC8C6FB',
      '0xd1220a0cf47c7b9be7a2e6ba89f429762e7b9adb':
        '0xD1220A0cf47c7B9Be7A2E6BA89F429762e7b9aDb',
      '0XD1220A0CF47C7B9BE7A2E6BA89F429762E7B9ADB':
        '0xD1220A0cf47c7B9Be7A2E6BA89F429762e7b9aDb',
      d1220a0cf47c7b9be7a2e6ba89f429762e7b9adb:
        '0xD1220A0cf47c7B9Be7A2E6BA89F429762e7b9aDb',
      D1220A0CF47C7B9BE7A2E6BA89F429762E7B9ADB:
        '0xD1220A0cf47c7B9Be7A2E6BA89F429762e7b9aDb'
    }

    Object.keys(testCases).forEach(address => {
      const checksumAddress = testCases[address]
      expect(Address.checksumAddress(address)).toBe(checksumAddress)
    })
  })

  test('throws an error if an invalid address is given', () => {
    expect(() => {
      Address.checksumAddress('0x5aaeb6053f3e94c9b9a09f33669435e7ef1beae')
    }).toThrow(/invalid/)
    expect(() => {
      Address.checksumAddress('0x5aaeb6053f3e94c9b9a09f33669435e7ef1beaedf')
    }).toThrow(/invalid/)
    expect(() => {
      Address.checksumAddress('5aaeb6053f3e94c9b9a09f33669435e7ef1beae')
    }).toThrow(/invalid/)
    expect(() => {
      Address.checksumAddress('5aaeb6053f3e94c9b9a09f33669435e7ef1beaedf')
    }).toThrow(/invalid/)
  })
})

describe('isValid', () => {
  test('rejects addresses that are too short', () => {
    expect(Address.isValid('0x5aaeb6053f3e94c9b9a09f33669435e7ef1beae')).toBe(
      false
    )
    expect(Address.isValid('5aaeb6053f3e94c9b9a09f33669435e7ef1beae')).toBe(
      false
    )
  })

  test('rejects addresses that are too long', () => {
    expect(Address.isValid('0x5aaeb6053f3e94c9b9a09f33669435e7ef1beaedf')).toBe(
      false
    )
    expect(Address.isValid('5aaeb6053f3e94c9b9a09f33669435e7ef1beaedf')).toBe(
      false
    )
  })

  test('rejects addresses that are mixed-case and has invalid checksum', () => {
    expect(Address.isValid('0x5Aaeb6053F3E94C9b9A09f33669435E7Ef1BeAed')).toBe(
      false
    )
    expect(Address.isValid('0xfB6916095ca1df60bB79Ce92cE3Ea74c37c5D359')).toBe(
      false
    )
    expect(Address.isValid('5Aaeb6053F3E94C9b9A09f33669435E7Ef1BeAed')).toBe(
      false
    )
    expect(Address.isValid('fB6916095ca1df60bB79Ce92cE3Ea74c37c5D359')).toBe(
      false
    )
  })

  test('rejects addresses with invalid characters', () => {
    expect(Address.isValid('0x5aaeb60!3f3e94c9b9a09f33669435e7ef1beaed')).toBe(
      false
    )
    expect(Address.isValid('0xfb6916095ca1df60bb79ce92c$3ea74c37c5d359')).toBe(
      false
    )
    expect(Address.isValid('5AAEB6053F3E94CYB9A09F33669435E7EF1BEAED')).toBe(
      false
    )
    expect(Address.isValid('fb6916095ca1df60bb79ce92ce3ea74c37c5ggzz')).toBe(
      false
    )
  })

  test('accepts addresses with valid mixed-case checksum', () => {
    expect(Address.isValid('0x5aAeb6053F3E94C9b9A09f33669435E7Ef1BeAed')).toBe(
      true
    )
    expect(Address.isValid('0xfB6916095ca1df60bB79Ce92cE3Ea74c37c5d359')).toBe(
      true
    )
    expect(Address.isValid('5aAeb6053F3E94C9b9A09f33669435E7Ef1BeAed')).toBe(
      true
    )
    expect(Address.isValid('fB6916095ca1df60bB79Ce92cE3Ea74c37c5d359')).toBe(
      true
    )
  })

  test('accepts addresses that are not mixed-case', () => {
    expect(Address.isValid('0x5aaeb6053f3e94c9b9a09f33669435e7ef1beaed')).toBe(
      true
    )
    expect(Address.isValid('0xfb6916095ca1df60bb79ce92ce3ea74c37c5d359')).toBe(
      true
    )
    expect(Address.isValid('0X5AAEB6053F3E94C9B9A09F33669435E7EF1BEAED')).toBe(
      true
    )
    expect(Address.isValid('5aaeb6053f3e94c9b9a09f33669435e7ef1beaed')).toBe(
      true
    )
    expect(Address.isValid('fb6916095ca1df60bb79ce92ce3ea74c37c5d359')).toBe(
      true
    )
    expect(Address.isValid('5AAEB6053F3E94C9B9A09F33669435E7EF1BEAED')).toBe(
      true
    )
  })
})