mirror of
https://github.com/kremalicious/metamask-extension.git
synced 2024-12-13 05:07:12 +01:00
90 lines
2.5 KiB
JavaScript
90 lines
2.5 KiB
JavaScript
var assert = require('assert')
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const additions = require('react-testutils-additions')
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const h = require('react-hyperscript')
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const ReactTestUtils = require('react-addons-test-utils')
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const ethUtil = require('ethereumjs-util')
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const BN = ethUtil.BN
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var BnInput = require('../../../old-ui/app/components/bn-as-decimal-input')
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describe('BnInput', function () {
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it('can tolerate a gas decimal number at a high precision', function (done) {
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const renderer = ReactTestUtils.createRenderer()
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let valueStr = '20'
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while (valueStr.length < 20) {
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valueStr += '0'
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}
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const value = new BN(valueStr, 10)
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const inputStr = '2.3'
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let targetStr = '23'
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while (targetStr.length < 19) {
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targetStr += '0'
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}
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const target = new BN(targetStr, 10)
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const precision = 18 // ether precision
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const scale = 18
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const props = {
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value,
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scale,
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precision,
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onChange: (newBn) => {
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assert.equal(newBn.toString(), target.toString(), 'should tolerate increase')
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done()
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},
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}
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const inputComponent = h(BnInput, props)
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const component = additions.renderIntoDocument(inputComponent)
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renderer.render(inputComponent)
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const input = additions.find(component, 'input.hex-input')[0]
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ReactTestUtils.Simulate.change(input, { preventDefault () {}, target: {
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value: inputStr,
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checkValidity () { return true } },
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})
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})
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it('can tolerate wei precision', function (done) {
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const renderer = ReactTestUtils.createRenderer()
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const valueStr = '1000000000'
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const value = new BN(valueStr, 10)
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const inputStr = '1.000000001'
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const targetStr = '1000000001'
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const target = new BN(targetStr, 10)
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const precision = 9 // gwei precision
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const scale = 9
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const props = {
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value,
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scale,
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precision,
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onChange: (newBn) => {
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assert.equal(newBn.toString(), target.toString(), 'should tolerate increase')
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const reInput = BnInput.prototype.downsize(newBn.toString(), 9, 9)
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assert.equal(reInput.toString(), inputStr, 'should tolerate increase')
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done()
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},
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}
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const inputComponent = h(BnInput, props)
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const component = additions.renderIntoDocument(inputComponent)
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renderer.render(inputComponent)
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const input = additions.find(component, 'input.hex-input')[0]
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ReactTestUtils.Simulate.change(input, { preventDefault () {}, target: {
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value: inputStr,
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checkValidity () { return true } },
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})
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})
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})
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