a3150166ec
There's a number of spots in the current code, and tests, where `cancel` methods are not called with appropriate arguments (leading to Promises not being rejected with Errors as intended). In some cases the cancel `reason` is implicitly set to `undefined`, and in others the cancel `reason` is just a plain String. To address this inconsistency, the patch changes things such that cancelling is done with `AbortException`s everywhere instead.
121 lines
3.9 KiB
JavaScript
121 lines
3.9 KiB
JavaScript
/* 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 { AbortException } from '../../src/shared/util';
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import { PDFNetworkStream } from '../../src/display/network';
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describe('network', function() {
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var pdf1 = new URL('../pdfs/tracemonkey.pdf', window.location).href;
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var pdf1Length = 1016315;
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it('read without stream and range', function(done) {
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var stream = new PDFNetworkStream({
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url: pdf1,
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rangeChunkSize: 65536,
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disableStream: true,
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disableRange: true,
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});
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var fullReader = stream.getFullReader();
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var isStreamingSupported, isRangeSupported;
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var promise = fullReader.headersReady.then(function () {
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isStreamingSupported = fullReader.isStreamingSupported;
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isRangeSupported = fullReader.isRangeSupported;
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});
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var len = 0, count = 0;
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var read = function () {
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return fullReader.read().then(function (result) {
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if (result.done) {
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return undefined;
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}
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count++;
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len += result.value.byteLength;
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return read();
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});
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};
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var readPromise = Promise.all([read(), promise]);
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readPromise.then(function (page) {
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expect(len).toEqual(pdf1Length);
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expect(count).toEqual(1);
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expect(isStreamingSupported).toEqual(false);
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expect(isRangeSupported).toEqual(false);
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done();
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}).catch(function (reason) {
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done.fail(reason);
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});
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});
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it('read custom ranges', function (done) {
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// We don't test on browsers that don't support range request, so
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// requiring this test to pass.
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var rangeSize = 32768;
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var stream = new PDFNetworkStream({
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url: pdf1,
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length: pdf1Length,
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rangeChunkSize: rangeSize,
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disableStream: true,
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disableRange: false,
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});
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var fullReader = stream.getFullReader();
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var isStreamingSupported, isRangeSupported, fullReaderCancelled;
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var promise = fullReader.headersReady.then(function () {
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isStreamingSupported = fullReader.isStreamingSupported;
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isRangeSupported = fullReader.isRangeSupported;
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// we shall be able to close the full reader without issues
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fullReader.cancel(new AbortException('Don\'t need fullReader.'));
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fullReaderCancelled = true;
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});
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// Skipping fullReader results, requesting something from the PDF end.
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var tailSize = (pdf1Length % rangeSize) || rangeSize;
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var range1Reader = stream.getRangeReader(pdf1Length - tailSize - rangeSize,
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pdf1Length - tailSize);
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var range2Reader = stream.getRangeReader(pdf1Length - tailSize, pdf1Length);
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var result1 = { value: 0, }, result2 = { value: 0, };
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var read = function (reader, lenResult) {
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return reader.read().then(function (result) {
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if (result.done) {
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return undefined;
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}
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lenResult.value += result.value.byteLength;
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return read(reader, lenResult);
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});
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};
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var readPromises = Promise.all([read(range1Reader, result1),
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read(range2Reader, result2),
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promise]);
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readPromises.then(function () {
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expect(result1.value).toEqual(rangeSize);
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expect(result2.value).toEqual(tailSize);
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expect(isStreamingSupported).toEqual(false);
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expect(isRangeSupported).toEqual(true);
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expect(fullReaderCancelled).toEqual(true);
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done();
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}).catch(function (reason) {
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done.fail(reason);
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});
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});
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});
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