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import React from 'react';
import { mount } from 'enzyme';
// eslint-disable-next-line import/no-named-as-default
import { render } from '@testing-library/react';
import debounce from 'lodash/debounce';
import Spin from '..';
import { sleep } from '../../../tests/utils';
jest.mock('lodash/debounce');
debounce.mockImplementation(jest.requireActual('lodash/debounce'));
describe('delay spinning', () => {
it("should render with delay when it's mounted with spinning=true and delay", () => {
const wrapper = mount(<Spin spinning delay={500} />);
expect(wrapper.find('.ant-spin').at(0).hasClass('ant-spin-spinning')).toEqual(false);
});
it('should render when delay is init set', async () => {
const wrapper = mount(<Spin spinning delay={100} />);
expect(wrapper.find('.ant-spin').at(0).hasClass('ant-spin-spinning')).toEqual(false);
// use await not jest.runAllTimers()
// because of https://github.com/facebook/jest/issues/3465
await sleep(500);
wrapper.update();
expect(wrapper.find('.ant-spin').at(0).hasClass('ant-spin-spinning')).toEqual(true);
});
it('should cancel debounce function when unmount', async () => {
const debouncedFn = jest.fn();
const cancel = jest.fn();
debouncedFn.cancel = cancel;
debounce.mockReturnValueOnce(debouncedFn);
const { unmount } = render(<Spin spinning delay={100} />);
expect(cancel).not.toHaveBeenCalled();
unmount();
expect(cancel).toHaveBeenCalled();
});
});