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var assert = require('assert')
const additions = require('react-testutils-additions')
const h = require('react-hyperscript')
const ReactTestUtils = require('react-addons-test-utils')
const ethUtil = require('ethereumjs-util')
const BN = ethUtil.BN
var BnInput = require('../../../ui/app/components/bn-as-decimal-input')
describe('BnInput', function () {
it('can tolerate a gas decimal number at a high precision', function (done) {
const renderer = ReactTestUtils.createRenderer()
let valueStr = '20'
while (valueStr.length < 20) {
valueStr += '0'
}
const value = new BN(valueStr, 10)
let inputStr = '2.3'
let targetStr = '23'
while (targetStr.length < 19) {
targetStr += '0'
}
const target = new BN(targetStr, 10)
const precision = 18 // ether precision
const scale = 18
const props = {
value,
scale,
precision,
onChange: (newBn) => {
assert.equal(newBn.toString(), target.toString(), 'should tolerate increase')
done()
},
}
const inputComponent = h(BnInput, props)
const component = additions.renderIntoDocument(inputComponent)
renderer.render(inputComponent)
const input = additions.find(component, 'input.hex-input')[0]
ReactTestUtils.Simulate.change(input, { preventDefault() {}, target: {
value: inputStr,
checkValidity() { return true } },
})
})
})
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