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59 lines
2.2 KiB
59 lines
2.2 KiB
import React from 'react';
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import { mount } from 'enzyme';
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import Carousel from '..';
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describe('Carousel', () => {
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beforeAll(() => {
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jest.useFakeTimers();
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});
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afterAll(() => {
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jest.useRealTimers();
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});
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it('should has innerSlider', () => {
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const wrapper = mount(<Carousel><div /></Carousel>);
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const { innerSlider } = wrapper.instance();
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const innerSliderFromRefs = wrapper.instance().slick.innerSlider;
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expect(innerSlider).toBe(innerSliderFromRefs);
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expect(typeof innerSlider.slickNext).toBe('function');
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});
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it('should has prev, next and go function', () => {
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const wrapper = mount(<Carousel><div>1</div><div>2</div><div>3</div></Carousel>);
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const { prev, next, goTo } = wrapper.instance();
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expect(typeof prev).toBe('function');
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expect(typeof next).toBe('function');
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expect(typeof goTo).toBe('function');
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expect(wrapper.instance().slick.innerSlider.state.currentSlide).toBe(0);
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wrapper.instance().goTo(2);
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jest.runAllTimers();
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expect(wrapper.instance().slick.innerSlider.state.currentSlide).toBe(2);
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wrapper.instance().prev();
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jest.runAllTimers();
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expect(wrapper.instance().slick.innerSlider.state.currentSlide).toBe(1);
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wrapper.instance().next();
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jest.runAllTimers();
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expect(wrapper.instance().slick.innerSlider.state.currentSlide).toBe(2);
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});
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it('should trigger autoPlay after window resize', async () => {
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jest.useRealTimers();
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const wrapper = mount(<Carousel autoplay><div>1</div><div>2</div><div>3</div></Carousel>);
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const spy = jest.spyOn(wrapper.instance().slick.innerSlider, 'autoPlay');
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window.resizeTo(1000);
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expect(spy).not.toBeCalled();
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await new Promise(resolve => setTimeout(resolve, 500));
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expect(spy).toBeCalled();
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});
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it('cancel resize listener when unmount', async () => {
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const wrapper = mount(<Carousel autoplay><div>1</div><div>2</div><div>3</div></Carousel>);
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const onWindowResized = wrapper.instance().onWindowResized;
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const spy = jest.spyOn(wrapper.instance().onWindowResized, 'cancel');
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const spy2 = jest.spyOn(window, 'removeEventListener');
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wrapper.unmount();
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expect(spy).toBeCalled();
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expect(spy2).toBeCalledWith('resize', onWindowResized);
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});
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});
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