metamask-extension/ui/components/app/advanced-gas-fee-popover/advanced-gas-fee-popover.test.js

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

import { GAS_ESTIMATE_TYPES } from '../../../../shared/constants/gas';
import { renderWithProvider } from '../../../../test/lib/render-helpers';
import mockEstimates from '../../../../test/data/mock-estimates.json';
import mockState from '../../../../test/data/mock-state.json';
import { GasFeeContextProvider } from '../../../contexts/gasFee';
import configureStore from '../../../store/store';

import AdvancedGasFeePopover from './advanced-gas-fee-popover';

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

jest.mock('../../../contexts/transaction-modal', () => ({
  useTransactionModalContext: () => ({
    closeModal: () => undefined,
    currentModal: 'advancedGasFee',
  }),
}));

const render = () => {
  const store = configureStore({
    metamask: {
      ...mockState.metamask,
      accounts: {
        [mockState.metamask.selectedAddress]: {
          address: mockState.metamask.selectedAddress,
          balance: '0x1F4',
        },
      },
      advancedGasFee: { priorityFee: 100 },
      featureFlags: { advancedInlineGas: true },
      gasFeeEstimates:
        mockEstimates[GAS_ESTIMATE_TYPES.FEE_MARKET].gasFeeEstimates,
    },
  });

  return renderWithProvider(
    <GasFeeContextProvider
      transaction={{
        userFeeLevel: 'custom',
      }}
    >
      <AdvancedGasFeePopover />
    </GasFeeContextProvider>,
    store,
  );
};

describe('AdvancedGasFeePopover', () => {
  it('should renders save button disabled by default', () => {
    render();
    expect(screen.queryByRole('button', { name: 'Save' })).toBeDisabled();
  });

  it('should enable save button as input value is changed', () => {
    render();
    fireEvent.change(document.getElementsByTagName('input')[0], {
      target: { value: 4 },
    });
    expect(screen.queryByRole('button', { name: 'Save' })).not.toBeDisabled();
  });
});