xahau.js/test/hashes-test.ts

import assert from 'assert'
import fs from 'fs'
import * as hashes from '../src/common/hashes'

/**
 * Expects a corresponding ledger dump in $repo/test/fixtures/rippled folder
 */
function createLedgerTest(ledgerIndex: number) {
  describe(String(ledgerIndex), function() {
    var path =
      __dirname + '/fixtures/rippled/ledger-full-' + ledgerIndex + '.json'

    var ledgerRaw = fs.readFileSync(path, {encoding: 'utf8'})
    var ledgerJSON = JSON.parse(ledgerRaw)

    var hasAccounts =
      Array.isArray(ledgerJSON.accountState) &&
      ledgerJSON.accountState.length > 0

    if (hasAccounts) {
      it('has account_hash of ' + ledgerJSON.account_hash, function() {
        assert.equal(
          ledgerJSON.account_hash,
          hashes.computeStateTreeHash(ledgerJSON.accountState)
        )
      })
    }
    it('has transaction_hash of ' + ledgerJSON.transaction_hash, function() {
      assert.equal(
        ledgerJSON.transaction_hash,
        hashes.computeTransactionTreeHash(ledgerJSON.transactions)
      )
    })
  })
}

describe('Ledger', function() {
  // This is the first recorded ledger with a non empty transaction set
  createLedgerTest(38129)
  // Because, why not.
  createLedgerTest(40000)
  // 1311 AffectedNodes, no accounts
  createLedgerTest(7501326)

  describe('calcAccountRootEntryHash', function() {
    it('will calculate the AccountRoot entry hash for rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh', function() {
      var account = 'rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh'
      var expectedEntryHash =
        '2B6AC232AA4C4BE41BF49D2459FA4A0347E1B543A4C92FCEE0821C0201E2E9A8'
      var actualEntryHash = hashes.computeAccountHash(account)

      assert.equal(actualEntryHash, expectedEntryHash)
    })
  })

  describe('calcRippleStateEntryHash', function() {
    it('will calculate the RippleState entry hash for rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh and rB5TihdPbKgMrkFqrqUC3yLdE8hhv4BdeY in USD', function() {
      var account1 = 'rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh'
      var account2 = 'rB5TihdPbKgMrkFqrqUC3yLdE8hhv4BdeY'
      var currency = 'USD'

      var expectedEntryHash =
        'C683B5BB928F025F1E860D9D69D6C554C2202DE0D45877ADB3077DA4CB9E125C'
      var actualEntryHash1 = hashes.computeTrustlineHash(
        account1,
        account2,
        currency
      )
      var actualEntryHash2 = hashes.computeTrustlineHash(
        account2,
        account1,
        currency
      )

      assert.equal(actualEntryHash1, expectedEntryHash)
      assert.equal(actualEntryHash2, expectedEntryHash)
    })

    it('will calculate the RippleState entry hash for r3kmLJN5D28dHuH8vZNUZpMC43pEHpaocV and rUAMuQTfVhbfqUDuro7zzy4jj4Wq57MPTj in UAM', function() {
      var account1 = 'r3kmLJN5D28dHuH8vZNUZpMC43pEHpaocV'
      var account2 = 'rUAMuQTfVhbfqUDuro7zzy4jj4Wq57MPTj'
      var currency = 'UAM'

      var expectedEntryHash =
        'AE9ADDC584358E5847ADFC971834E471436FC3E9DE6EA1773DF49F419DC0F65E'
      var actualEntryHash1 = hashes.computeTrustlineHash(
        account1,
        account2,
        currency
      )
      var actualEntryHash2 = hashes.computeTrustlineHash(
        account2,
        account1,
        currency
      )

      assert.equal(actualEntryHash1, expectedEntryHash)
      assert.equal(actualEntryHash2, expectedEntryHash)
    })
  })

  describe('calcOfferEntryHash', function() {
    it('will calculate the Offer entry hash for r32UufnaCGL82HubijgJGDmdE5hac7ZvLw, sequence 137', function() {
      var account = 'r32UufnaCGL82HubijgJGDmdE5hac7ZvLw'
      var sequence = 137
      var expectedEntryHash =
        '03F0AED09DEEE74CEF85CD57A0429D6113507CF759C597BABB4ADB752F734CE3'
      var actualEntryHash = hashes.computeOrderHash(account, sequence)

      assert.equal(actualEntryHash, expectedEntryHash)
    })
  })

  describe('computeSignerListHash', function() {
    it('will calculate the SignerList index for r32UufnaCGL82HubijgJGDmdE5hac7ZvLw', function() {
      var account = 'rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh'
      var expectedEntryHash =
        '778365D5180F5DF3016817D1F318527AD7410D83F8636CF48C43E8AF72AB49BF'
      var actualEntryHash = hashes.computeSignerListHash(account)
      assert.equal(actualEntryHash, expectedEntryHash)
    })
  })

  describe('calcEscrowEntryHash', function() {
    it('will calculate the Escrow entry hash for rDx69ebzbowuqztksVDmZXjizTd12BVr4x, sequence 84', function() {
      var account = 'rDx69ebzbowuqztksVDmZXjizTd12BVr4x'
      var sequence = 84
      var expectedEntryHash =
        '61E8E8ED53FA2CEBE192B23897071E9A75217BF5A410E9CB5B45AAB7AECA567A'
      var actualEntryHash = hashes.computeEscrowHash(account, sequence)

      assert.equal(actualEntryHash, expectedEntryHash)
    })
  })

  describe('calcPaymentChannelEntryHash', function() {
    it('will calculate the PaymentChannel entry hash for rDx69ebzbowuqztksVDmZXjizTd12BVr4x and rLFtVprxUEfsH54eCWKsZrEQzMDsx1wqso, sequence 82', function() {
      var account = 'rDx69ebzbowuqztksVDmZXjizTd12BVr4x'
      var dstAccount = 'rLFtVprxUEfsH54eCWKsZrEQzMDsx1wqso'
      var sequence = 82
      var expectedEntryHash =
        'E35708503B3C3143FB522D749AAFCC296E8060F0FB371A9A56FAE0B1ED127366'
      var actualEntryHash = hashes.computePaymentChannelHash(
        account,
        dstAccount,
        sequence
      )

      assert.equal(actualEntryHash, expectedEntryHash)
    })
  })
})