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metamask-extension/test/unit/tx-utils-test.js
2017-03-07 22:42:16 -05:00

27 lines
739 B
JavaScript

const assert = require('assert')
const ethUtil = require('ethereumjs-util')
const BN = ethUtil.BN
const TxUtils = require('../../app/scripts/lib/tx-utils')
describe('txUtils', function() {
let txUtils
before(function() {
txUtils = new TxUtils()
})
describe('addGasBuffer', function() {
it('multiplies by 1.5', function() {
const input = '0x123fad'
const output = txUtils.addGasBuffer(input, '0x3d4c52') //0x3d4c52 is 4mil for dummy gas limit
const inputBn = new BN(ethUtil.stripHexPrefix(input), 'hex')
const outputBn = new BN(ethUtil.stripHexPrefix(output), 'hex')
const expectedBn = inputBn.muln(1.5)
assert(outputBn.eq(expectedBn), 'returns 1.5 the input value')
})
})
})