pdfjs-dist/lib/test/unit/pdf_history_spec.js

/**
 * @licstart The following is the entire license notice for the
 * Javascript code in this page
 *
 * Copyright 2021 Mozilla Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * @licend The above is the entire license notice for the
 * Javascript code in this page
 */
"use strict";

var _pdf_history = require("../../web/pdf_history.js");

describe("pdf_history", function () {
  describe("isDestHashesEqual", function () {
    it("should reject non-equal destination hashes", function () {
      expect((0, _pdf_history.isDestHashesEqual)(null, "page.157")).toEqual(false);
      expect((0, _pdf_history.isDestHashesEqual)("title.0", "page.157")).toEqual(false);
      expect((0, _pdf_history.isDestHashesEqual)("page=1&zoom=auto", "page.157")).toEqual(false);
      expect((0, _pdf_history.isDestHashesEqual)("nameddest-page.157", "page.157")).toEqual(false);
      expect((0, _pdf_history.isDestHashesEqual)("page.157", "nameddest=page.157")).toEqual(false);
      const destArrayString = JSON.stringify([{
        num: 3757,
        gen: 0
      }, {
        name: "XYZ"
      }, 92.918, 748.972, null]);
      expect((0, _pdf_history.isDestHashesEqual)(destArrayString, "page.157")).toEqual(false);
      expect((0, _pdf_history.isDestHashesEqual)("page.157", destArrayString)).toEqual(false);
    });
    it("should accept equal destination hashes", function () {
      expect((0, _pdf_history.isDestHashesEqual)("page.157", "page.157")).toEqual(true);
      expect((0, _pdf_history.isDestHashesEqual)("nameddest=page.157", "page.157")).toEqual(true);
      expect((0, _pdf_history.isDestHashesEqual)("nameddest=page.157&zoom=100", "page.157")).toEqual(true);
    });
  });
  describe("isDestArraysEqual", function () {
    const firstDest = [{
      num: 1,
      gen: 0
    }, {
      name: "XYZ"
    }, 0, 375, null];
    const secondDest = [{
      num: 5,
      gen: 0
    }, {
      name: "XYZ"
    }, 0, 375, null];
    const thirdDest = [{
      num: 1,
      gen: 0
    }, {
      name: "XYZ"
    }, 750, 0, null];
    const fourthDest = [{
      num: 1,
      gen: 0
    }, {
      name: "XYZ"
    }, 0, 375, 1.0];
    const fifthDest = [{
      gen: 0,
      num: 1
    }, {
      name: "XYZ"
    }, 0, 375, null];
    it("should reject non-equal destination arrays", function () {
      expect((0, _pdf_history.isDestArraysEqual)(firstDest, undefined)).toEqual(false);
      expect((0, _pdf_history.isDestArraysEqual)(firstDest, [1, 2, 3, 4, 5])).toEqual(false);
      expect((0, _pdf_history.isDestArraysEqual)(firstDest, secondDest)).toEqual(false);
      expect((0, _pdf_history.isDestArraysEqual)(firstDest, thirdDest)).toEqual(false);
      expect((0, _pdf_history.isDestArraysEqual)(firstDest, fourthDest)).toEqual(false);
    });
    it("should accept equal destination arrays", function () {
      expect((0, _pdf_history.isDestArraysEqual)(firstDest, firstDest)).toEqual(true);
      expect((0, _pdf_history.isDestArraysEqual)(firstDest, fifthDest)).toEqual(true);
      const firstDestCopy = firstDest.slice();
      expect(firstDest).not.toBe(firstDestCopy);
      expect((0, _pdf_history.isDestArraysEqual)(firstDest, firstDestCopy)).toEqual(true);
    });
  });
});