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

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

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.strictEqual(
        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.strictEqual(type, 'PRIMARY');
      assert.strictEqual(value, 'mockGasTotal');
    });

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

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