ant-design-vue/components/carousel/__tests__/index.test.js

import { mount } from '@vue/test-utils';
import { asyncExpect } from '@/tests/utils';
import Carousel from '..';
import mountTest from '../../../tests/shared/mountTest';

describe('Carousel', () => {
  mountTest(Carousel);
  // beforeEach(() => {
  //   jest.useFakeTimers();
  // });

  // afterEach(() => {
  //   jest.useRealTimers();
  // });
  it('should has innerSlider', () => {
    const props = {
      slots: {
        default: '<div />',
      },
      sync: false,
    };
    const wrapper = mount(Carousel, props);
    const { innerSlider, $refs } = wrapper.vm;
    const innerSliderFromRefs = $refs.slick.innerSlider;
    expect(innerSlider).toBe(innerSliderFromRefs);
    expect(typeof innerSlider.slickNext).toBe('function');
  });

  it('should has prev, next and go function', async () => {
    const props = {
      slots: {
        default: '<div>1</div><div>2</div><div>3</div>',
      },
      sync: false,
    };
    const wrapper = mount(Carousel, props);
    const { prev, next, goTo } = wrapper.vm;
    expect(typeof prev).toBe('function');
    expect(typeof next).toBe('function');
    expect(typeof goTo).toBe('function');
    const slick = wrapper.vm.$refs.slick;

    expect(slick.innerSlider.currentSlide).toBe(0);
    wrapper.vm.goTo(2);
    await asyncExpect(() => {
      expect(slick.innerSlider.currentSlide).toBe(2);
    }, 1000);
    prev();
    await asyncExpect(() => {
      expect(slick.innerSlider.currentSlide).toBe(1);
    }, 1000);

    next();

    await asyncExpect(() => {
      expect(slick.innerSlider.currentSlide).toBe(2);
    }, 1000);
  });

  it('should trigger autoPlay after window resize', async () => {
    const props = {
      propsData: {
        autoplay: true,
      },
      slots: {
        default: '<div>1</div><div>2</div><div>3</div>',
      },
      sync: false,
    };
    const wrapper = mount(Carousel, props);
    const spy = jest.spyOn(wrapper.vm.$refs.slick.innerSlider, 'handleAutoPlay');
    window.resizeTo(1000);
    expect(spy).not.toHaveBeenCalled();
    await new Promise(resolve => setTimeout(resolve, 1000));
    expect(spy).toHaveBeenCalled();
  });

  it('cancel resize listener when unmount', async () => {
    const props = {
      propsData: {
        autoplay: true,
      },
      slots: {
        default: '<div>1</div><div>2</div><div>3</div>',
      },
      sync: false,
    };
    const wrapper = mount(Carousel, props);
    const { onWindowResized } = wrapper.vm;
    const spy = jest.spyOn(wrapper.vm.onWindowResized, 'cancel');
    const spy2 = jest.spyOn(window, 'removeEventListener');
    wrapper.destroy();
    expect(spy).toHaveBeenCalled();
    expect(spy2).toHaveBeenCalledWith('resize', onWindowResized);
  });

  describe('should works for dotPosition', () => {
    ['left', 'right', 'top', 'bottom'].forEach(dotPosition => {
      it(dotPosition, () => {
        const wrapper = mount({
          render() {
            return (
              <Carousel dotPosition={dotPosition}>
                <div />
              </Carousel>
            );
          },
        });
        expect(wrapper.html()).toMatchSnapshot();
      });
    });
  });

  it('warning', () => {
    const warnSpy = jest.spyOn(console, 'error').mockImplementation(() => {});
    mount({
      render() {
        return (
          <Carousel vertical>
            <div />
          </Carousel>
        );
      },
    });
    expect(warnSpy).toHaveBeenCalledWith(
      'Warning: [antdv: Carousel] `vertical` is deprecated, please use `dotPosition` instead.',
    );
    warnSpy.mockRestore();
  });
});