Add a isDestsEqual
helper function, to allow comparing explicit destinations, in pdf_history.js
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@ -17,6 +17,7 @@
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"murmurhash3_spec.js",
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"murmurhash3_spec.js",
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"node_stream_spec.js",
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"node_stream_spec.js",
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"parser_spec.js",
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"parser_spec.js",
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"pdf_history.js",
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"primitives_spec.js",
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"primitives_spec.js",
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"stream_spec.js",
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"stream_spec.js",
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"type1_parser_spec.js",
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"type1_parser_spec.js",
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@ -64,6 +64,7 @@ function initializePDFJS(callback) {
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'pdfjs-test/unit/murmurhash3_spec',
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'pdfjs-test/unit/murmurhash3_spec',
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'pdfjs-test/unit/network_spec',
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'pdfjs-test/unit/network_spec',
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'pdfjs-test/unit/parser_spec',
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'pdfjs-test/unit/parser_spec',
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'pdfjs-test/unit/pdf_history_spec',
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'pdfjs-test/unit/primitives_spec',
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'pdfjs-test/unit/primitives_spec',
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'pdfjs-test/unit/stream_spec',
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'pdfjs-test/unit/stream_spec',
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'pdfjs-test/unit/type1_parser_spec',
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'pdfjs-test/unit/type1_parser_spec',
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45
test/unit/pdf_history_spec.js
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45
test/unit/pdf_history_spec.js
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@ -0,0 +1,45 @@
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/* Copyright 2017 Mozilla Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import { isDestsEqual } from '../../web/pdf_history';
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describe('pdf_history', function() {
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describe('isDestsEqual', function() {
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let firstDest = [{ num: 1, gen: 0, }, { name: 'XYZ', }, 0, 375, null];
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let secondDest = [{ num: 5, gen: 0, }, { name: 'XYZ', }, 0, 375, null];
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let thirdDest = [{ num: 1, gen: 0, }, { name: 'XYZ', }, 750, 0, null];
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let fourthDest = [{ num: 1, gen: 0, }, { name: 'XYZ', }, 0, 375, 1.0];
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let fifthDest = [{ gen: 0, num: 1, }, { name: 'XYZ', }, 0, 375, null];
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it('should reject non-equal destination arrays', function() {
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expect(isDestsEqual(firstDest, undefined)).toEqual(false);
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expect(isDestsEqual(firstDest, [1, 2, 3, 4, 5])).toEqual(false);
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expect(isDestsEqual(firstDest, secondDest)).toEqual(false);
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expect(isDestsEqual(firstDest, thirdDest)).toEqual(false);
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expect(isDestsEqual(firstDest, fourthDest)).toEqual(false);
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});
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it('should accept equal destination arrays', function() {
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expect(isDestsEqual(firstDest, firstDest)).toEqual(true);
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expect(isDestsEqual(firstDest, fifthDest)).toEqual(true);
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let firstDestCopy = firstDest.slice();
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expect(firstDest).not.toBe(firstDestCopy);
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expect(isDestsEqual(firstDest, firstDestCopy)).toEqual(true);
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});
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});
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});
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@ -30,6 +30,43 @@ class PDFHistory {
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forward() {}
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forward() {}
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}
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}
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function isDestsEqual(firstDest, secondDest) {
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function isEntryEqual(first, second) {
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if (typeof first !== typeof second) {
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return false;
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}
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if (first instanceof Array || second instanceof Array) {
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return false;
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}
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if (first !== null && typeof first === 'object' && second !== null) {
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if (Object.keys(first).length !== Object.keys(second).length) {
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return false;
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}
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for (var key in first) {
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if (!isEntryEqual(first[key], second[key])) {
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return false;
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}
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}
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return true;
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}
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return first === second || (Number.isNaN(first) && Number.isNaN(second));
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}
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if (!(firstDest instanceof Array && secondDest instanceof Array)) {
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return false;
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}
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if (firstDest.length !== secondDest.length) {
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return false;
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}
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for (let i = 0, ii = firstDest.length; i < ii; i++) {
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if (!isEntryEqual(firstDest[i], secondDest[i])) {
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return false;
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}
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}
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return true;
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}
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export {
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export {
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PDFHistory,
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PDFHistory,
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isDestsEqual,
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};
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};
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