3 files changed, 97 insertions, 0 deletions

diff --git a/app/scripts/controllers/transactions/index.js b/app/scripts/controllers/transactions/index.js
index 9cd8429fb..f530fbd22 100644
--- a/app/scripts/controllers/transactions/index.js
+++ b/app/scripts/controllers/transactions/index.js
@@ -290,6 +290,29 @@ class TransactionController extends EventEmitter {
     return newTxMeta
   }
 
+  async createSpeedUpTransaction (originalTxId, customGasPrice) {
+    const originalTxMeta = this.txStateManager.getTx(originalTxId)
+    const { txParams } = originalTxMeta
+    const { gasPrice: lastGasPrice } = txParams
+
+    const newGasPrice = customGasPrice || bnToHex(BnMultiplyByFraction(hexToBn(lastGasPrice), 11, 10))
+
+    const newTxMeta = this.txStateManager.generateTxMeta({
+      txParams: {
+        ...txParams,
+        gasPrice: newGasPrice,
+      },
+      lastGasPrice,
+      loadingDefaults: false,
+      status: TRANSACTION_STATUS_APPROVED,
+      type: TRANSACTION_TYPE_RETRY,
+    })
+
+    this.addTx(newTxMeta)
+    await this.approveTransaction(newTxMeta.id)
+    return newTxMeta
+  }
+
   /**
   updates the txMeta in the txStateManager
   @param txMeta {Object} - the updated txMeta
diff --git a/app/scripts/metamask-controller.js b/app/scripts/metamask-controller.js
index fe806e47e..d382b1ad0 100644
--- a/app/scripts/metamask-controller.js
+++ b/app/scripts/metamask-controller.js
@@ -445,6 +445,7 @@ module.exports = class MetamaskController extends EventEmitter {
       updateAndApproveTransaction: nodeify(txController.updateAndApproveTransaction, txController),
       retryTransaction: nodeify(this.retryTransaction, this),
       createCancelTransaction: nodeify(this.createCancelTransaction, this),
+      createSpeedUpTransaction: nodeify(this.createSpeedUpTransaction, this),
       getFilteredTxList: nodeify(txController.getFilteredTxList, txController),
       isNonceTaken: nodeify(txController.isNonceTaken, txController),
       estimateGas: nodeify(this.estimateGas, this),
@@ -1162,6 +1163,12 @@ module.exports = class MetamaskController extends EventEmitter {
     return state
   }
 
+  async createSpeedUpTransaction (originalTxId, customGasPrice, cb) {
+    await this.txController.createSpeedUpTransaction(originalTxId, customGasPrice)
+    const state = await this.getState()
+    return state
+  }
+
   estimateGas (estimateGasParams) {
     return new Promise((resolve, reject) => {
       return this.txController.txGasUtil.query.estimateGas(estimateGasParams, (err, res) => {
diff --git a/test/unit/app/controllers/transactions/tx-controller-test.js b/test/unit/app/controllers/transactions/tx-controller-test.js
index 2fe4c47d1..6889f9bb2 100644
--- a/test/unit/app/controllers/transactions/tx-controller-test.js
+++ b/test/unit/app/controllers/transactions/tx-controller-test.js
@@ -5,6 +5,9 @@ const EthTx = require('ethereumjs-tx')
 const ObservableStore = require('obs-store')
 const sinon = require('sinon')
 const TransactionController = require('../../../../../app/scripts/controllers/transactions')
+const {
+  TRANSACTION_TYPE_RETRY,
+} = require('../../../../../app/scripts/controllers/transactions/enums')
 const { createTestProviderTools, getTestAccounts } = require('../../../../stub/provider')
 
 const noop = () => true
@@ -392,6 +395,70 @@ describe('Transaction Controller', function () {
 
   })
 
+  describe('#createSpeedUpTransaction', () => {
+    let addTxSpy
+    let approveTransactionSpy
+    let txParams
+    let expectedTxParams
+
+    beforeEach(() => {
+      addTxSpy = sinon.spy(txController, 'addTx')
+      approveTransactionSpy = sinon.spy(txController, 'approveTransaction')
+
+      txParams = {
+        nonce: '0x00',
+        from: '0xB09d8505E1F4EF1CeA089D47094f5DD3464083d4',
+        to: '0xB09d8505E1F4EF1CeA089D47094f5DD3464083d4',
+        gas: '0x5209',
+        gasPrice: '0xa',
+      }
+      txController.txStateManager._saveTxList([
+        { id: 1, status: 'submitted', metamaskNetworkId: currentNetworkId, txParams, history: [] },
+      ])
+
+      expectedTxParams = Object.assign({}, txParams, { gasPrice: '0xb'})
+    })
+
+    afterEach(() => {
+      addTxSpy.restore()
+      approveTransactionSpy.restore()
+    })
+
+    it('should call this.addTx and this.approveTransaction with the expected args', async () => {
+      await txController.createSpeedUpTransaction(1)
+      assert.equal(addTxSpy.callCount, 1)
+
+      const addTxArgs = addTxSpy.getCall(0).args[0]
+      assert.deepEqual(addTxArgs.txParams, expectedTxParams)
+
+      const { lastGasPrice, type } = addTxArgs
+      assert.deepEqual({ lastGasPrice, type }, {
+        lastGasPrice: '0xa',
+        type: TRANSACTION_TYPE_RETRY,
+      })
+    })
+
+    it('should call this.approveTransaction with the id of the returned tx', async () => {
+      const result = await txController.createSpeedUpTransaction(1)
+      assert.equal(approveTransactionSpy.callCount, 1)
+
+      const approveTransactionArg = approveTransactionSpy.getCall(0).args[0]
+      assert.equal(result.id, approveTransactionArg)
+    })
+
+    it('should return the expected txMeta', async () => {
+      const result = await txController.createSpeedUpTransaction(1)
+
+      assert.deepEqual(result.txParams, expectedTxParams)
+
+      const { lastGasPrice, type } = result
+      assert.deepEqual({ lastGasPrice, type }, {
+        lastGasPrice: '0xa',
+        type: TRANSACTION_TYPE_RETRY,
+      })
+    })
+  })
+
   describe('#publishTransaction', function () {
     let hash, txMeta
     beforeEach(function () {