react-next-paging/dist/index.test.js

ReactJS component for easy pagination

"use strict";

var _interopRequireWildcard = require("@babel/runtime/helpers/interopRequireWildcard");

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

var _react = _interopRequireDefault(require("react"));

var _enzyme = _interopRequireWildcard(require("enzyme"));

var _enzymeAdapterReact = _interopRequireDefault(require("enzyme-adapter-react-16"));

var _reactNextPaging = _interopRequireWildcard(require("./react-next-paging"));

_enzyme.default.configure({
  adapter: new _enzymeAdapterReact.default()
});

var ITEMS = ["a", "b", "c", "d", "e", "f"];
describe("react-next-paging", function () {
  it("should call children prop with an object", function () {
    // this will create a spy/mock
    var mockChildren = jest.fn();
    var wrapper = (0, _enzyme.shallow)(_react.default.createElement(_reactNextPaging.default, null, mockChildren));
    expect(mockChildren).toHaveBeenCalled();
    expect(mockChildren).toHaveBeenCalledTimes(1);
    expect(mockChildren).toHaveBeenCalledWith(expect.objectContaining({
      getBackButtonProps: expect.any(Function),
      getFastBackButtonProps: expect.any(Function),
      getFwdButtonProps: expect.any(Function),
      getFastFwdButtonProps: expect.any(Function),
      getSelPageButtonProps: expect.any(Function)
    }));
  });
  it("should start on the first page and allow forward buttons to be enabled", function () {
    var mockChildren = jest.fn();
    var wrapper = (0, _enzyme.shallow)(_react.default.createElement(_reactNextPaging.default, {
      items: ITEMS,
      itemsperpage: 2,
      pagesspan: 10
    }, mockChildren));
    expect(mockChildren).toHaveBeenCalled(); // expect(mockChildren).toHaveBeenCalledTimes(1);

    expect(mockChildren).toHaveBeenCalledWith(expect.objectContaining({
      goBackBdisabled: true,
      goFastBackBdisabled: true,
      goFwdBdisabled: false,
      goFastFwdBdisabled: false
    }));
  });
});
describe("getNoPages", function () {
  it("should return 0 when given any empty list", function () {
    var items = [];
    var itemsperpage = 2;
    var actual = (0, _reactNextPaging.getNoPages)(items, itemsperpage);
    expect(actual).toBe(0);
  });
  it("should round up on uneven", function () {
    var items = Array.from({
      length: 10
    });
    var itemsperpage = 3;
    var actual = (0, _reactNextPaging.getNoPages)(items, itemsperpage);
    expect(actual).toBe(4);
  });
});
describe("isNoPagesLargerPagesSpan", function () {
  it("should return true given nopages larger than pagesspan", function () {
    var nopages = 24;
    var pagesspan = 10;
    var actual = (0, _reactNextPaging.isNoPagesLargerPagesSpan)(nopages, pagesspan);
    expect(actual).toBe(true);
  });
  it("should return false given nopages smaller than pagesspan", function () {
    var nopages = 5;
    var pagesspan = 10;
    var actual = (0, _reactNextPaging.isNoPagesLargerPagesSpan)(nopages, pagesspan);
    expect(actual).toBe(false);
  });
});
describe("getHalfPagesArray", function () {
  it("should return 0 given pagesforarray 0", function () {
    var pagesforarray = 0;
    var actual = (0, _reactNextPaging.getHalfPagesArray)(pagesforarray);
    expect(actual).toBe(0);
  });
  it("should return 12 given pagesforarray 24", function () {
    var pagesforarray = 24;
    var actual = (0, _reactNextPaging.getHalfPagesArray)(pagesforarray);
    expect(actual).toBe(12);
  });
  it("should return 5 given pagesforarray 9", function () {
    var pagesforarray = 9;
    var actual = (0, _reactNextPaging.getHalfPagesArray)(pagesforarray);
    expect(actual).toBe(4);
  });
  it("should return 5 given pagesforarray 11", function () {
    var pagesforarray = 11;
    var actual = (0, _reactNextPaging.getHalfPagesArray)(pagesforarray);
    expect(actual).toBe(5);
  });
});
describe("getIniPageofArray", function () {
  it("should return 1 given page 1 nopages > pagesspan", function () {
    var nopages = 40;
    var pagesspan = 10;
    var page = 1;
    var inipagearray = 1;
    var actual = (0, _reactNextPaging.getIniPageofArray)(nopages, pagesspan, page, inipagearray);
    expect(actual).toBe(1);
  });
  it("should return 2 given page 6 nopages > pagesspan", function () {
    var nopages = 40;
    var pagesspan = 10;
    var page = 6;
    var inipagearray = 1;
    var actual = (0, _reactNextPaging.getIniPageofArray)(nopages, pagesspan, page, inipagearray);
    expect(actual).toBe(1);
  });
  it("should return 4 given page 9 nopages > pagesspan", function () {
    var nopages = 40;
    var pagesspan = 10;
    var page = 9;
    var inipagearray = 1;
    var actual = (0, _reactNextPaging.getIniPageofArray)(nopages, pagesspan, page, inipagearray);
    expect(actual).toBe(4);
  });
  it("should return 12 given page 17 nopages > pagesspan", function () {
    var nopages = 40;
    var pagesspan = 10;
    var page = 17;
    var inipagearray = 1;
    var actual = (0, _reactNextPaging.getIniPageofArray)(nopages, pagesspan, page, inipagearray);
    expect(actual).toBe(12);
  });
  it("should return 2 given page 3 nopages > pagesspan", function () {
    var nopages = 5;
    var pagesspan = 4;
    var page = 3;
    var inipagearray = 1;
    var actual = (0, _reactNextPaging.getIniPageofArray)(nopages, pagesspan, page, inipagearray);
    expect(actual).toBe(1);
  });
  it("should return 1 given page 1 nopages < pagesspan", function () {
    var nopages = 4;
    var pagesspan = 10;
    var page = 1;
    var inipagearray = 1;
    var actual = (0, _reactNextPaging.getIniPageofArray)(nopages, pagesspan, page, inipagearray);
    expect(actual).toBe(1);
  });
  it("should return 1 given page 4 nopages < pagesspan", function () {
    var nopages = 4;
    var pagesspan = 10;
    var page = 4;
    var inipagearray = 1;
    var actual = (0, _reactNextPaging.getIniPageofArray)(nopages, pagesspan, page, inipagearray);
    expect(actual).toBe(1);
  });
  it("should return 1 given page 20 nopages < pagesspan", function () {
    var nopages = 4;
    var pagesspan = 10;
    var page = 20;
    var inipagearray = 1;
    var actual = (0, _reactNextPaging.getIniPageofArray)(nopages, pagesspan, page, inipagearray);
    expect(actual).toBe(1);
  });
  it("should return 4 given page 6 nopages < pagesspan", function () {
    var nopages = 40;
    var pagesspan = 5;
    var page = 6;
    var inipagearray = 6;
    var actual = (0, _reactNextPaging.getIniPageofArray)(nopages, pagesspan, page, inipagearray);
    expect(actual).toBe(4);
  });
  it("should return 2 given page 5 nopages < pagesspan", function () {
    var nopages = 5;
    var pagesspan = 4;
    var page = 5;
    var inipagearray = 1;
    var actual = (0, _reactNextPaging.getIniPageofArray)(nopages, pagesspan, page, inipagearray);
    expect(actual).toBe(2);
  });
  it("should return 2 given page 4 nopages < pagesspan", function () {
    var nopages = 5;
    var pagesspan = 4;
    var page = 4;
    var inipagearray = 1;
    var actual = (0, _reactNextPaging.getIniPageofArray)(nopages, pagesspan, page, inipagearray);
    expect(actual).toBe(2);
  });
});