import React from "react";

import NextPages from "./NextPages.js";
import Page from "../Page/Page.js";

const exampleLinkFactory = () => (
  <a href={`#`} />
);

describe("Pagination/NextPages", () => {
  rendersComponent(NextPages);

  const wrapper = mount(
    <NextPages />
  );

  it("doesn\'t render a Page component", () => {
    expect(wrapper.find(Page).exists()).toEqual(false);
  });

  describe("when the current page is not the last page", () => {
    const customProps = {
      page: 2,
      totalPages: 4,
      linkFactory: exampleLinkFactory
    };

    rendersComponent(NextPages, customProps);

    const wrapper = mount(
      <NextPages { ...customProps } />
    );

    it("renders two Page components", () => {
      expect(wrapper.find(Page).length).toEqual(2);
    });
  });

  describe("when the current page is the second to last page", () => {
    const customProps = {
      page: 3,
      totalPages: 4,
      linkFactory: exampleLinkFactory
    };

    rendersComponent(NextPages, customProps);

    const wrapper = mount(
      <NextPages { ...customProps } />
    );

    it("renders two Page components", () => {
      expect(wrapper.find(Page).length).toEqual(2);
    });
  });

  describe("when the current page is the last page", () => {
    const customProps = {
      page: 4,
      totalPages: 4,
      linkFactory: exampleLinkFactory
    };

    rendersComponent(NextPages, customProps);

    const wrapper = mount(
      <NextPages { ...customProps } />
    );

    it("doesn\'t render a Page component", () => {
      expect(wrapper.find(Page).exists()).toEqual(false);
    });
  });
});