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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() {
describe('adds a flat value', function() {
it('over an empty value', function() {
const input = '0x0'
const output = txUtils.addGasBuffer(input)
assert.notEqual(output, input, 'changed the value')
const inputBn = new BN(input, 'hex')
const outputBn = new BN(output, 'hex')
assert(outputBn.gt(inputBn), 'returns a greater value')
})
it('over an value', function() {
const input = '0x123fad'
const output = txUtils.addGasBuffer(input)
assert.notEqual(output, input, 'changed the value')
const inputBn = new BN(input, 'hex')
const outputBn = new BN(output, 'hex')
assert(outputBn.gt(inputBn), 'returns a greater value')
})
})
})
})
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