Fix valueFor test

app/scripts/lib/pending-balance-calculator.js

@@ -15,32 +15,33 @@ class PendingBalanceCalculator {
       this.getNetworkBalance(),
       this.getPendingTransactions(),
     ])
-    console.dir(results)
 
     const balance = results[0]
     const pending = results[1]
 
-    console.dir({ balance, pending })
     console.dir(pending)
 
-    const pendingValue = pending.reduce(function (total, tx) {
+    const pendingValue = pending.reduce((total, tx) => {
       return total.add(this.valueFor(tx))
     }, new BN(0))
 
-    const balanceBn = new BN(normalize(balance))
-    console.log(`subtracting ${pendingValue.toString()} from ${balanceBn.toString()}`)
+    console.log(`subtracting ${pendingValue.toString()} from ${balance.toString()}`)
 
-    return `0x${ balanceBn.sub(pendingValue).toString(16) }`
+    return `0x${ balance.sub(pendingValue).toString(16) }`
   }
 
   valueFor (tx) {
     const txValue = tx.txParams.value
     const normalized = normalize(txValue).substring(2)
     console.log({ txValue, normalized })
-    const value = new BN(normalize(txValue).substring(2), 16)
+    const value = this.hexToBn(txValue)
     return value
   }
 
+  hexToBn (hex) {
+    return new BN(normalize(hex).substring(2), 16)
+  }
+
 }
 
 module.exports = PendingBalanceCalculator

test/unit/pending-balance-test.js

@@ -4,6 +4,7 @@ const MockTxGen = require('../lib/mock-tx-gen')
 const BN = require('ethereumjs-util').BN
 let providerResultStub = {}
 
+const zeroBn = new BN(0)
 const etherBn = new BN(String(1e18))
 const ether = '0x' + etherBn.toString(16)
 
@@ -22,7 +23,7 @@ describe('PendingBalanceCalculator', function () {
         }
       }, { count: 1 })
 
-      const balanceCalculator = generateBalaneCalcWith([], '0x0')
+      const balanceCalculator = generateBalanceCalcWith([], zeroBn)
       const result = balanceCalculator.valueFor(pendingTxs[0])
       assert.equal(result.toString(), etherBn.toString(), 'computes one ether')
     })
@@ -31,7 +32,7 @@ describe('PendingBalanceCalculator', function () {
   describe('if you have no pending txs and one ether', function () {
 
     beforeEach(function () {
-      balanceCalculator = generateBalaneCalcWith([], ether)
+      balanceCalculator = generateBalanceCalcWith([], zeroBn)
     })
 
     it('returns the network balance', async function () {
@@ -52,7 +53,7 @@ describe('PendingBalanceCalculator', function () {
         }
       }, { count: 1 })
 
-      balanceCalculator = generateBalaneCalcWith(pendingTxs, ether)
+      balanceCalculator = generateBalanceCalcWith(pendingTxs, etherBn)
     })
 
     it('returns the network balance', async function () {
@@ -69,7 +70,7 @@ describe('PendingBalanceCalculator', function () {
   })
 })
 
-function generateBalaneCalcWith (transactions, providerStub = '0x0') {
+function generateBalanceCalcWith (transactions, providerStub = zeroBn) {
   const getPendingTransactions = () => Promise.resolve(transactions)
   const getBalance = () => Promise.resolve(providerStub)
   providerResultStub.result = providerStub