metamask-extension/ui/app/pages/send/send-content/send-gas-row/gas-fee-display/tests/gas-fee-display.component.test.js

import React from 'react'
import assert from 'assert'
import { shallow } from 'enzyme'
import GasFeeDisplay from '../gas-fee-display.component'
import UserPreferencedCurrencyDisplay from '../../../../../../components/app/user-preferenced-currency-display'
import sinon from 'sinon'

const propsMethodSpies = {
  showCustomizeGasModal: sinon.spy(),
  onReset: sinon.spy(),
}

describe('GasFeeDisplay Component', function () {
  let wrapper

  describe('render', function () {
    beforeEach(function () {
      wrapper = shallow((
        <GasFeeDisplay
          conversionRate={20}
          gasTotal="mockGasTotal"
          primaryCurrency="mockPrimaryCurrency"
          convertedCurrency="mockConvertedCurrency"
          showGasButtonGroup={propsMethodSpies.showCustomizeGasModal}
          onReset={propsMethodSpies.onReset}
        />
      ), { context: { t: (str) => str + '_t' } })
    })

    afterEach(function () {
      propsMethodSpies.showCustomizeGasModal.resetHistory()
    })

    it('should render a CurrencyDisplay component', function () {
      assert.equal(wrapper.find(UserPreferencedCurrencyDisplay).length, 2)
    })

    it('should render the CurrencyDisplay with the correct props', function () {
      const {
        type,
        value,
      } = wrapper.find(UserPreferencedCurrencyDisplay).at(0).props()
      assert.equal(type, 'PRIMARY')
      assert.equal(value, 'mockGasTotal')
    })

    it('should render the reset button with the correct props', function () {
      const {
        onClick,
        className,
      } = wrapper.find('button').props()
      assert.equal(className, 'gas-fee-reset')
      assert.equal(propsMethodSpies.onReset.callCount, 0)
      onClick()
      assert.equal(propsMethodSpies.onReset.callCount, 1)
    })

    it('should render the reset button with the correct text', function () {
      assert.equal(wrapper.find('button').text(), 'reset_t')
    })
  })
})