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

import React from 'react'
import assert from 'assert'
import { shallow } from 'enzyme'
import sinon from 'sinon'
import SendGasRow from '../send-gas-row.component.js'

import SendRowWrapper from '../../send-row-wrapper/send-row-wrapper.component'
import GasFeeDisplay from '../gas-fee-display/gas-fee-display.component'
import GasPriceButtonGroup from '../../../../../components/app/gas-customization/gas-price-button-group'

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

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

  beforeEach(() => {
    wrapper = shallow((
      <SendGasRow
        conversionRate={20}
        convertedCurrency="mockConvertedCurrency"
        gasFeeError="mockGasFeeError"
        gasLoadingError={false}
        gasTotal="mockGasTotal"
        gasButtonGroupShown={false}
        showCustomizeGasModal={propsMethodSpies.showCustomizeGasModal}
        resetGasButtons={propsMethodSpies.resetGasButtons}
        gasPriceButtonGroupProps={{
          someGasPriceButtonGroupProp: 'foo',
          anotherGasPriceButtonGroupProp: 'bar',
        }}
      />
    ), { context: { t: str => str + '_t', metricsEvent: () => ({}) } })
  })

  afterEach(() => {
    propsMethodSpies.resetGasButtons.resetHistory()
  })

  describe('render', () => {
    it('should render a SendRowWrapper component', () => {
      assert.equal(wrapper.find(SendRowWrapper).length, 1)
    })

    it('should pass the correct props to SendRowWrapper', () => {
      const {
        label,
        showError,
        errorType,
      } = wrapper.find(SendRowWrapper).props()

      assert.equal(label, 'transactionFee_t:')
      assert.equal(showError, 'mockGasFeeError')
      assert.equal(errorType, 'gasFee')
    })

    it('should render a GasFeeDisplay as a child of the SendRowWrapper', () => {
      assert(wrapper.find(SendRowWrapper).childAt(0).is(GasFeeDisplay))
    })

    it('should render the GasFeeDisplay', () => {
      const {
        gasLoadingError,
        gasTotal,
        onReset,
      } = wrapper.find(SendRowWrapper).childAt(0).props()
      assert.equal(gasLoadingError, false)
      assert.equal(gasTotal, 'mockGasTotal')
      assert.equal(propsMethodSpies.resetGasButtons.callCount, 0)
      onReset()
      assert.equal(propsMethodSpies.resetGasButtons.callCount, 1)
    })

    it('should render the GasPriceButtonGroup if gasButtonGroupShown is true', () => {
      wrapper.setProps({ gasButtonGroupShown: true })
      const rendered = wrapper.find(SendRowWrapper).childAt(0)
      assert.equal(rendered.children().length, 2)

      const gasPriceButtonGroup = rendered.childAt(0)
      assert(gasPriceButtonGroup.is(GasPriceButtonGroup))
      assert(gasPriceButtonGroup.hasClass('gas-price-button-group--small'))
      assert.equal(gasPriceButtonGroup.props().showCheck, false)
      assert.equal(gasPriceButtonGroup.props().someGasPriceButtonGroupProp, 'foo')
      assert.equal(gasPriceButtonGroup.props().anotherGasPriceButtonGroupProp, 'bar')
    })

    it('should render an advanced options button if gasButtonGroupShown is true', () => {
      wrapper.setProps({ gasButtonGroupShown: true })
      const rendered = wrapper.find(SendRowWrapper).childAt(0)
      assert.equal(rendered.children().length, 2)

      const advancedOptionsButton = rendered.childAt(1)
      assert.equal(advancedOptionsButton.text(), 'advancedOptions_t')

      assert.equal(propsMethodSpies.showCustomizeGasModal.callCount, 0)
      advancedOptionsButton.props().onClick()
      assert.equal(propsMethodSpies.showCustomizeGasModal.callCount, 1)
    })
  })
})