react-slick/__tests__/lazyLoad.test.js

import { render } from "@testing-library/react";
import assign from "object-assign";
import { getRequiredLazySlides } from "../src/utils/innerSliderUtils";
import {
  createInnerSliderWrapper,
  clickNext,
  clickPrev,
  tryAllConfigs
} from "./testUtils";

// const testSettings = settings => {
//   let {container} = createInnerSliderWrapper(settings);
//   for (let click = 0; click < settings.noOfSlides + 2; click++) {
//     let lazyLoadedList = slider.state().lazyLoadedList;
//     let expectedLazyLoadedList = getRequiredLazySlides(
//       assign({}, slider.props(), slider.state())
//     );
//     expectedLazyLoadedList.forEach(slide => {
//       expect(lazyLoadedList.indexOf(slide) >= 0).toEqual(true);
//     });
//     clickNext(slider);
//   }

//   slider = createInnerSliderWrapper(settings);
//   for (let click = 0; click < settings.noOfSlides + 2; click++) {
//     let lazyLoadedList = slider.state().lazyLoadedList;
//     let expectedLazyLoadedList = getRequiredLazySlides(
//       assign({}, slider.props(), slider.state())
//     );
//     expectedLazyLoadedList.forEach(slide => {
//       expect(lazyLoadedList.indexOf(slide) >= 0).toEqual(true);
//     });
//     clickPrev(slider);
//   }

//   slider = createInnerSliderWrapper(settings);
//   for (let click = 0; click < settings.noOfSlides + 2; click++) {
//     let lazyLoadedList = slider.state().lazyLoadedList;
//     lazyLoadedList.forEach(slideIndex => {
//       expect(
//         slider.find(`[data-index=${slideIndex}]`).props().children !== undefined
//       ).toBe(true);
//     });
//   }
// };

// describe("LazyLoad test", () => {
//   let settings = {
//     lazyLoad: true,
//     useCSS: false,
//     speed: 0,
//     noOfSlides: [7, 8],
//     initialSlide: [0, 5],
//     slidesToShow: [1, 3, 4],
//     slidesToScroll: [1, 3],
//     centerMode: [true, false]
//   };
//   let settingsList = [];
//   tryAllConfigs(settings, settingsList);
//   // shuffle the list
//   settingsList.sort(() => 0.5 - Math.random());
//   settingsList.forEach((settings, index) => {
//     if (Math.random() < 0.5) {
//       test(`Testing config no. ${index}`, () => testSettings(settings));
//     }
//   });
// });