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path: root/test/unit/tx-controller-test.js
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const assert = require('assert')
const ethUtil = require('ethereumjs-util')
const EthTx = require('ethereumjs-tx')
const EthjsQuery = require('ethjs-query')
const ObservableStore = require('obs-store')
const sinon = require('sinon')
const TransactionController = require('../../app/scripts/controllers/transactions')
const TxGasUtils = require('../../app/scripts/lib/tx-gas-utils')
const { createTestProviderTools } = require('../stub/provider')

const noop = () => true
const currentNetworkId = 42
const otherNetworkId = 36
const privKey = new Buffer('8718b9618a37d1fc78c436511fc6df3c8258d3250635bba617f33003270ec03e', 'hex')


describe('Transaction Controller', function () {
  let txController, provider, providerResultStub, testBlockchain

  beforeEach(function () {
    providerResultStub = {
      // 1 gwei
      eth_gasPrice: '0x0de0b6b3a7640000',
      // by default, all accounts are external accounts (not contracts)
      eth_getCode: '0x',
    }
    const providerTools = createTestProviderTools({ scaffold: providerResultStub })
    provider = providerTools.provider
    testBlockchain = providerTools.testBlockchain

    txController = new TransactionController({
      provider,
      networkStore: new ObservableStore(currentNetworkId),
      txHistoryLimit: 10,
      blockTracker: { getCurrentBlock: noop, on: noop, once: noop },
      signTransaction: (ethTx) => new Promise((resolve) => {
        ethTx.sign(privKey)
        resolve()
      }),
    })
    txController.nonceTracker.getNonceLock = () => Promise.resolve({ nextNonce: 0, releaseLock: noop })
  })

  describe('#getState', function () {
    it('should return a state object with the right keys and datat types', function () {
      const exposedState = txController.getState()
      assert('unapprovedTxs' in exposedState, 'state should have the key unapprovedTxs')
      assert('selectedAddressTxList' in exposedState, 'state should have the key selectedAddressTxList')
      assert(typeof exposedState.unapprovedTxs === 'object', 'should be an object')
      assert(Array.isArray(exposedState.selectedAddressTxList), 'should be an array')
    })
  })

  describe('#getUnapprovedTxCount', function () {
    it('should return the number of unapproved txs', function () {
      txController.txStateManager._saveTxList([
        { id: 1, status: 'unapproved', metamaskNetworkId: currentNetworkId, txParams: {} },
        { id: 2, status: 'unapproved', metamaskNetworkId: currentNetworkId, txParams: {} },
        { id: 3, status: 'unapproved', metamaskNetworkId: currentNetworkId, txParams: {} },
      ])
      const unapprovedTxCount = txController.getUnapprovedTxCount()
      assert.equal(unapprovedTxCount, 3, 'should be 3')
    })
  })

  describe('#getPendingTxCount', function () {
    it('should return the number of pending txs', function () {
      txController.txStateManager._saveTxList([
        { id: 1, status: 'submitted', metamaskNetworkId: currentNetworkId, txParams: {} },
        { id: 2, status: 'submitted', metamaskNetworkId: currentNetworkId, txParams: {} },
        { id: 3, status: 'submitted', metamaskNetworkId: currentNetworkId, txParams: {} },
      ])
      const pendingTxCount = txController.getPendingTxCount()
      assert.equal(pendingTxCount, 3, 'should be 3')
    })
  })

  describe('#getConfirmedTransactions', function () {
    let address
    beforeEach(function () {
      address = '0xc684832530fcbddae4b4230a47e991ddcec2831d'
      const txParams = {
        'from': address,
        'to': '0xc684832530fcbddae4b4230a47e991ddcec2831d',
      }
      txController.txStateManager._saveTxList([
        {id: 0, status: 'confirmed', metamaskNetworkId: currentNetworkId, txParams},
        {id: 1, status: 'confirmed', metamaskNetworkId: currentNetworkId, txParams},
        {id: 2, status: 'confirmed', metamaskNetworkId: currentNetworkId, txParams},
        {id: 3, status: 'unapproved', metamaskNetworkId: currentNetworkId, txParams},
        {id: 4, status: 'rejected', metamaskNetworkId: currentNetworkId, txParams},
        {id: 5, status: 'approved', metamaskNetworkId: currentNetworkId, txParams},
        {id: 6, status: 'signed', metamaskNetworkId: currentNetworkId, txParams},
        {id: 7, status: 'submitted', metamaskNetworkId: currentNetworkId, txParams},
        {id: 8, status: 'failed', metamaskNetworkId: currentNetworkId, txParams},
      ])
    })

    it('should return the number of confirmed txs', function () {
      assert.equal(txController.nonceTracker.getConfirmedTransactions(address).length, 3)
    })
  })


  describe('#newUnapprovedTransaction', function () {
    let stub, txMeta, txParams
    beforeEach(function () {
      txParams = {
        'from': '0xc684832530fcbddae4b4230a47e991ddcec2831d',
        'to': '0xc684832530fcbddae4b4230a47e991ddcec2831d',
      }
      txMeta = {
        status: 'unapproved',
        id: 1,
        metamaskNetworkId: currentNetworkId,
        txParams,
        history: [],
      }
      txController.txStateManager._saveTxList([txMeta])
      stub = sinon.stub(txController, 'addUnapprovedTransaction').callsFake(() => {
        txController.emit('newUnapprovedTx', txMeta)
        return Promise.resolve(txController.txStateManager.addTx(txMeta))
    })

    afterEach(function () {
      txController.txStateManager._saveTxList([])
      stub.restore()
    })
  })

    it('should resolve when finished and status is submitted and resolve with the hash', function (done) {
      txController.once('newUnapprovedTx', (txMetaFromEmit) => {
        setTimeout(() => {
          txController.setTxHash(txMetaFromEmit.id, '0x0')
          txController.txStateManager.setTxStatusSubmitted(txMetaFromEmit.id)
        }, 10)
      })

      txController.newUnapprovedTransaction(txParams)
      .then((hash) => {
        assert(hash, 'newUnapprovedTransaction needs to return the hash')
        done()
      })
      .catch(done)
    })

    it('should reject when finished and status is rejected', function (done) {
      txController.once('newUnapprovedTx', (txMetaFromEmit) => {
        setTimeout(() => {
          txController.txStateManager.setTxStatusRejected(txMetaFromEmit.id)
        }, 10)
      })

      txController.newUnapprovedTransaction(txParams)
      .catch((err) => {
        if (err.message === 'MetaMask Tx Signature: User denied transaction signature.') done()
        else done(err)
      })
    })
  })

  describe('#addUnapprovedTransaction', function () {

    it('should add an unapproved transaction and return a valid txMeta', function (done) {
      txController.addUnapprovedTransaction({ from: '0x1678a085c290ebd122dc42cba69373b5953b831d' })
      .then((txMeta) => {
        assert(('id' in txMeta), 'should have a id')
        assert(('time' in txMeta), 'should have a time stamp')
        assert(('metamaskNetworkId' in txMeta), 'should have a metamaskNetworkId')
        assert(('txParams' in txMeta), 'should have a txParams')
        assert(('history' in txMeta), 'should have a history')

        const memTxMeta = txController.txStateManager.getTx(txMeta.id)
        assert.deepEqual(txMeta, memTxMeta, `txMeta should be stored in txController after adding it\n  expected: ${txMeta} \n  got: ${memTxMeta}`)
        done()
      }).catch(done)
    })

    it('should emit newUnapprovedTx event and pass txMeta as the first argument', function (done) {
      providerResultStub.eth_gasPrice = '4a817c800'
      txController.once('newUnapprovedTx', (txMetaFromEmit) => {
        assert(txMetaFromEmit, 'txMeta is falsey')
        done()
      })
      txController.addUnapprovedTransaction({ from: '0x1678a085c290ebd122dc42cba69373b5953b831d' })
      .catch(done)
    })

  })

  describe('#addTxDefaults', function () {
    it('should add the tx defaults if their are none', function (done) {
      const txMeta = {
        'txParams': {
          'from': '0xc684832530fcbddae4b4230a47e991ddcec2831d',
          'to': '0xc684832530fcbddae4b4230a47e991ddcec2831d',
        },
      }
        providerResultStub.eth_gasPrice = '4a817c800'
        providerResultStub.eth_getBlockByNumber = { gasLimit: '47b784' }
        providerResultStub.eth_estimateGas = '5209'
      txController.addTxDefaults(txMeta)
      .then((txMetaWithDefaults) => {
        assert(txMetaWithDefaults.txParams.value, '0x0', 'should have added 0x0 as the value')
        assert(txMetaWithDefaults.txParams.gasPrice, 'should have added the gas price')
        assert(txMetaWithDefaults.txParams.gas, 'should have added the gas field')
        done()
      })
      .catch(done)
    })
  })

  describe('#_validateTxParams', function () {
    it('does not throw for positive values', function () {
      var sample = {
        from: '0x1678a085c290ebd122dc42cba69373b5953b831d',
        value: '0x01',
      }
      txController._validateTxParams(sample)
    })

    it('returns error for negative values', function () {
      var sample = {
        from: '0x1678a085c290ebd122dc42cba69373b5953b831d',
        value: '-0x01',
      }
      try {
        txController._validateTxParams(sample)
      } catch (err) {
        assert.ok(err, 'error')
      }
    })
  })

  describe('#_normalizeTxParams', () => {
    it('should normalize txParams', () => {
      let txParams = {
        chainId: '0x1',
        from: 'a7df1beDBF813f57096dF77FCd515f0B3900e402',
        to: null,
        data: '68656c6c6f20776f726c64',
        random: 'hello world',
      }

      let normalizedTxParams = txController._normalizeTxParams(txParams)

      assert(!normalizedTxParams.chainId, 'their should be no chainId')
      assert(!normalizedTxParams.to, 'their should be no to address if null')
      assert.equal(normalizedTxParams.from.slice(0, 2), '0x', 'from should be hexPrefixd')
      assert.equal(normalizedTxParams.data.slice(0, 2), '0x', 'data should be hexPrefixd')
      assert(!('random' in normalizedTxParams), 'their should be no random key in normalizedTxParams')

      txParams.to = 'a7df1beDBF813f57096dF77FCd515f0B3900e402'
      normalizedTxParams = txController._normalizeTxParams(txParams)
      assert.equal(normalizedTxParams.to.slice(0, 2), '0x', 'to should be hexPrefixd')

    })
  })

  describe('#_validateRecipient', () => {
    it('removes recipient for txParams with 0x when contract data is provided', function () {
      const zeroRecipientandDataTxParams = {
        from: '0x1678a085c290ebd122dc42cba69373b5953b831d',
        to: '0x',
        data: 'bytecode',
      }
      const sanitizedTxParams = txController._validateRecipient(zeroRecipientandDataTxParams)
      assert.deepEqual(sanitizedTxParams, { from: '0x1678a085c290ebd122dc42cba69373b5953b831d', data: 'bytecode' }, 'no recipient with 0x')
    })

    it('should error when recipient is 0x', function () {
      const zeroRecipientTxParams = {
        from: '0x1678a085c290ebd122dc42cba69373b5953b831d',
        to: '0x',
      }
      assert.throws(() => { txController._validateRecipient(zeroRecipientTxParams) }, Error, 'Invalid recipient address')
    })
  })


  describe('#_validateFrom', () => {
    it('should error when from is not a hex string', function () {

      // where from is undefined
      const txParams = {}
      assert.throws(() => { txController._validateFrom(txParams) }, Error, `Invalid from address ${txParams.from} not a string`)

      // where from is array
      txParams.from = []
      assert.throws(() => { txController._validateFrom(txParams) }, Error, `Invalid from address ${txParams.from} not a string`)

      // where from is a object
      txParams.from = {}
      assert.throws(() => { txController._validateFrom(txParams) }, Error, `Invalid from address ${txParams.from} not a string`)

      // where from is a invalid address
      txParams.from = 'im going to fail'
      assert.throws(() => { txController._validateFrom(txParams) }, Error, `Invalid from address`)

      // should run
      txParams.from ='0x1678a085c290ebd122dc42cba69373b5953b831d'
      txController._validateFrom(txParams)
      })
  })

  describe('#addTx', function () {
    it('should emit updates', function (done) {
      const txMeta = {
        id: '1',
        status: 'unapproved',
        metamaskNetworkId: currentNetworkId,
        txParams: {},
      }

      const eventNames = ['update:badge', '1:unapproved']
      const listeners = []
      eventNames.forEach((eventName) => {
        listeners.push(new Promise((resolve) => {
          txController.once(eventName, (arg) => {
            resolve(arg)
          })
        }))
      })
      Promise.all(listeners)
      .then((returnValues) => {
        assert.deepEqual(returnValues.pop(), txMeta, 'last event 1:unapproved should return txMeta')
        done()
      })
      .catch(done)
      txController.addTx(txMeta)
    })
  })

  describe('#approveTransaction', function () {
    let txMeta, originalValue

    beforeEach(function () {
      originalValue = '0x01'
      txMeta = {
        id: '1',
        status: 'unapproved',
        metamaskNetworkId: currentNetworkId,
        txParams: {
          nonce: originalValue,
          gas: originalValue,
          gasPrice: originalValue,
        },
      }
    })


    it('does not overwrite set values', function (done) {
      this.timeout(15000)
      const wrongValue = '0x05'

      txController.addTx(txMeta)
      providerResultStub.eth_gasPrice = wrongValue
      providerResultStub.eth_estimateGas = '0x5209'

      const signStub = sinon.stub(txController, 'signTransaction').callsFake(() => Promise.resolve())

      const pubStub = sinon.stub(txController, 'publishTransaction').callsFake(() => {
        txController.setTxHash('1', originalValue)
        txController.txStateManager.setTxStatusSubmitted('1')
      })

      txController.approveTransaction(txMeta.id).then(() => {
        const result = txController.txStateManager.getTx(txMeta.id)
        const params = result.txParams

        assert.equal(params.gas, originalValue, 'gas unmodified')
        assert.equal(params.gasPrice, originalValue, 'gas price unmodified')
        assert.equal(result.hash, originalValue, `hash was set \n got: ${result.hash} \n expected: ${originalValue}`)
        signStub.restore()
        pubStub.restore()
        done()
      }).catch(done)
    })
  })

  describe('#sign replay-protected tx', function () {
    it('prepares a tx with the chainId set', function (done) {
      txController.addTx({ id: '1', status: 'unapproved', metamaskNetworkId: currentNetworkId, txParams: {} }, noop)
      txController.signTransaction('1').then((rawTx) => {
        const ethTx = new EthTx(ethUtil.toBuffer(rawTx))
        assert.equal(ethTx.getChainId(), currentNetworkId)
        done()
      }).catch(done)
    })
  })

  describe('#updateAndApproveTransaction', function () {
    let txMeta
    beforeEach(function () {
      txMeta = {
        id: 1,
        status: 'unapproved',
        txParams: {
          from: '0xc684832530fcbddae4b4230a47e991ddcec2831d',
          to: '0x1678a085c290ebd122dc42cba69373b5953b831d',
          gasPrice: '0x77359400',
          gas: '0x7b0d',
          nonce: '0x4b',
        },
        metamaskNetworkId: currentNetworkId,
      }
    })
    it('should update and approve transactions', function () {
      txController.txStateManager.addTx(txMeta)
      txController.updateAndApproveTransaction(txMeta)
      const tx = txController.txStateManager.getTx(1)
      assert.equal(tx.status, 'approved')
    })
  })

  describe('#getChainId', function () {
    it('returns 0 when the chainId is NaN', function () {
      txController.networkStore = new ObservableStore(NaN)
      assert.equal(txController.getChainId(), 0)
    })
  })

  describe('#cancelTransaction', function () {
    beforeEach(function () {
      txController.txStateManager._saveTxList([
        { id: 0, status: 'unapproved', txParams: {}, metamaskNetworkId: currentNetworkId, history: [{}] },
        { id: 1, status: 'rejected', txParams: {}, metamaskNetworkId: currentNetworkId, history: [{}] },
        { id: 2, status: 'approved', txParams: {}, metamaskNetworkId: currentNetworkId, history: [{}] },
        { id: 3, status: 'signed', txParams: {}, metamaskNetworkId: currentNetworkId, history: [{}] },
        { id: 4, status: 'submitted', txParams: {}, metamaskNetworkId: currentNetworkId, history: [{}] },
        { id: 5, status: 'confirmed', txParams: {}, metamaskNetworkId: currentNetworkId, history: [{}] },
        { id: 6, status: 'failed', txParams: {}, metamaskNetworkId: currentNetworkId, history: [{}] },
      ])
    })

    it('should set the transaction to rejected from unapproved', async function () {
      await txController.cancelTransaction(0)
      assert.equal(txController.txStateManager.getTx(0).status, 'rejected')
    })

  })

  describe('#publishTransaction', function () {
    let hash, txMeta
    beforeEach(function () {
      hash = '0x2a5523c6fa98b47b7d9b6c8320179785150b42a16bcff36b398c5062b65657e8'
      txMeta = {
        id: 1,
        status: 'unapproved',
        txParams: {},
        metamaskNetworkId: currentNetworkId,
      }
      providerResultStub.eth_sendRawTransaction = hash
    })

    it('should publish a tx, updates the rawTx when provided a one', async function () {
      txController.txStateManager.addTx(txMeta)
      await txController.publishTransaction(txMeta.id)
      const publishedTx = txController.txStateManager.getTx(1)
      assert.equal(publishedTx.hash, hash)
      assert.equal(publishedTx.status, 'submitted')
    })
  })

  describe('#retryTransaction', function () {
    it('should create a new txMeta with the same txParams as the original one', function (done) {
      let txParams = {
        nonce: '0x00',
        from: '0xB09d8505E1F4EF1CeA089D47094f5DD3464083d4',
        to: '0xB09d8505E1F4EF1CeA089D47094f5DD3464083d4',
        data: '0x0',
      }
      txController.txStateManager._saveTxList([
        { id: 1, status: 'submitted', metamaskNetworkId: currentNetworkId, txParams },
      ])
      txController.retryTransaction(1)
      .then((txMeta) => {
        assert.equal(txMeta.txParams.nonce, txParams.nonce, 'nonce should be the same')
        assert.equal(txMeta.txParams.from, txParams.from, 'from should be the same')
        assert.equal(txMeta.txParams.to, txParams.to, 'to should be the same')
        assert.equal(txMeta.txParams.data, txParams.data, 'data should be the same')
        assert.ok(('lastGasPrice' in txMeta), 'should have the key `lastGasPrice`')
        assert.equal(txController.txStateManager.getTxList().length, 2)
        done()
      }).catch(done)
    })
  })

  describe('#_markNonceDuplicatesDropped', function () {
    it('should mark all nonce duplicates as dropped without marking the confirmed transaction as dropped', function () {
      txController.txStateManager._saveTxList([
        { id: 1, status: 'confirmed', metamaskNetworkId: currentNetworkId, history: [{}], txParams: { nonce: '0x01' } },
        { id: 2, status: 'submitted', metamaskNetworkId: currentNetworkId, history: [{}], txParams: { nonce: '0x01' } },
        { id: 3, status: 'submitted', metamaskNetworkId: currentNetworkId, history: [{}], txParams: { nonce: '0x01' } },
        { id: 4, status: 'submitted', metamaskNetworkId: currentNetworkId, history: [{}], txParams: { nonce: '0x01' } },
        { id: 5, status: 'submitted', metamaskNetworkId: currentNetworkId, history: [{}], txParams: { nonce: '0x01' } },
        { id: 6, status: 'submitted', metamaskNetworkId: currentNetworkId, history: [{}], txParams: { nonce: '0x01' } },
        { id: 7, status: 'submitted', metamaskNetworkId: currentNetworkId, history: [{}], txParams: { nonce: '0x01' } },
      ])
      txController._markNonceDuplicatesDropped(1)
      const confirmedTx = txController.txStateManager.getTx(1)
      const droppedTxs = txController.txStateManager.getFilteredTxList({ nonce: '0x01', status: 'dropped' })
      assert.equal(confirmedTx.status, 'confirmed', 'the confirmedTx should remain confirmed')
      assert.equal(droppedTxs.length, 6, 'their should be 6 dropped txs')

    })
  })

  describe('#getPendingTransactions', function () {
    beforeEach(function () {
      txController.txStateManager._saveTxList([
        { id: 1, status: 'unapproved', metamaskNetworkId: currentNetworkId, txParams: {} },
        { id: 2, status: 'rejected', metamaskNetworkId: currentNetworkId, txParams: {} },
        { id: 3, status: 'approved', metamaskNetworkId: currentNetworkId, txParams: {} },
        { id: 4, status: 'signed', metamaskNetworkId: currentNetworkId, txParams: {} },
        { id: 5, status: 'submitted', metamaskNetworkId: currentNetworkId, txParams: {} },
        { id: 6, status: 'confirmed', metamaskNetworkId: currentNetworkId, txParams: {} },
        { id: 7, status: 'failed', metamaskNetworkId: currentNetworkId, txParams: {} },
      ])
    })
    it('should show only submitted transactions as pending transasction', function () {
      assert(txController.pendingTxTracker.getPendingTransactions().length, 1)
      assert(txController.pendingTxTracker.getPendingTransactions()[0].status, 'submitted')
    })
  })
})