metamask-extension/ui/components/app/edit-gas-fee-popover/network-statistics/network-statistics.test.js

import React from 'react';
import { screen } from '@testing-library/react';

import { renderWithProvider } from '../../../../../test/jest';
import { ETH } from '../../../../helpers/constants/common';
import { GasFeeContextProvider } from '../../../../contexts/gasFee';
import configureStore from '../../../../store/store';

import NetworkStatistics from './network-statistics';

jest.mock('../../../../store/actions', () => ({
  disconnectGasFeeEstimatePoller: jest.fn(),
  getGasFeeEstimatesAndStartPolling: jest
    .fn()
    .mockImplementation(() => Promise.resolve()),
  addPollingTokenToAppState: jest.fn(),
  getGasFeeTimeEstimate: jest
    .fn()
    .mockImplementation(() => Promise.resolve('unknown')),
}));

const MOCK_FEE_ESTIMATE = {
  estimatedBaseFee: '50.0112',
};

const renderComponent = (props) => {
  const store = configureStore({
    metamask: {
      nativeCurrency: ETH,
      provider: {},
      cachedBalances: {},
      accounts: {
        '0xAddress': {
          address: '0xAddress',
          balance: '0x176e5b6f173ebe66',
        },
      },
      selectedAddress: '0xAddress',
      featureFlags: { advancedInlineGas: true },
      gasFeeEstimates: MOCK_FEE_ESTIMATE,
      ...props,
    },
  });

  return renderWithProvider(
    <GasFeeContextProvider>
      <NetworkStatistics />
    </GasFeeContextProvider>,
    store,
  );
};

describe('NetworkStatistics', () => {
  it('should renders labels', () => {
    renderComponent();
    expect(screen.queryByText('Base fee')).toBeInTheDocument();
    expect(screen.queryByText('Priority fee')).toBeInTheDocument();
  });

  it('should renders current base fee value', () => {
    renderComponent();
    expect(
      screen.queryByText(`${MOCK_FEE_ESTIMATE.estimatedBaseFee} GWEI`),
    ).toBeInTheDocument();
  });
});