superset-frontend/packages/superset-frontend/src/components/ButtonGroup/ButtonGroup.test.tsx

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

import React from 'react';
import { ReactWrapper } from 'enzyme';
import { styledMount as mount } from 'spec/helpers/theming';
import Button from 'src/components/Button';
import ButtonGroup from '.';

describe('ButtonGroup', () => {
  let wrapper: ReactWrapper;

  it('renders 1 button', () => {
    expect(
      React.isValidElement(
        <ButtonGroup>
          <Button>Button</Button>
        </ButtonGroup>,
      ),
    ).toBe(true);
  });

  it('renders 3 buttons', () => {
    wrapper = mount(
      <ButtonGroup>
        <Button>Button</Button>
        <Button>Button</Button>
        <Button>Button</Button>
      </ButtonGroup>,
    );

    expect(wrapper.find(Button).length).toEqual(3);
  });
});