pdf.js/test/unit/test_utils.js
Jonas Jenwald 4a7e29865d [api-minor] Use the NodeCanvasFactory/NodeCMapReaderFactory classes as defaults in Node.js environments (issue 11900)
This moves, and slightly simplifies, code that's currently residing in the unit-test utils into the actual library, such that it's bundled with `GENERIC`-builds and used in e.g. the API-code.

As an added bonus, this also brings out-of-the-box support for CMaps in e.g. the Node.js examples.
2020-07-02 04:44:23 +02:00

124 lines
2.8 KiB
JavaScript

/* Copyright 2017 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.
*/
import { assert } from "../../src/shared/util.js";
import { isNodeJS } from "../../src/shared/is_node.js";
import { isRef } from "../../src/core/primitives.js";
import { Page } from "../../src/core/document.js";
class DOMFileReaderFactory {
static async fetch(params) {
const response = await fetch(params.path);
if (!response.ok) {
throw new Error(response.statusText);
}
return new Uint8Array(await response.arrayBuffer());
}
}
class NodeFileReaderFactory {
static async fetch(params) {
const fs = require("fs");
return new Promise((resolve, reject) => {
fs.readFile(params.path, (error, data) => {
if (error || !data) {
reject(error || new Error(`Empty file for: ${params.path}`));
return;
}
resolve(new Uint8Array(data));
});
});
}
}
const TEST_PDFS_PATH = {
dom: "../pdfs/",
node: "./test/pdfs/",
};
function buildGetDocumentParams(filename, options) {
const params = Object.create(null);
if (isNodeJS) {
params.url = TEST_PDFS_PATH.node + filename;
} else {
params.url = new URL(TEST_PDFS_PATH.dom + filename, window.location).href;
}
for (const option in options) {
params[option] = options[option];
}
return params;
}
class XRefMock {
constructor(array) {
this._map = Object.create(null);
for (const key in array) {
const obj = array[key];
this._map[obj.ref.toString()] = obj.data;
}
}
fetch(ref) {
return this._map[ref.toString()];
}
fetchAsync(ref) {
return Promise.resolve(this.fetch(ref));
}
fetchIfRef(obj) {
if (!isRef(obj)) {
return obj;
}
return this.fetch(obj);
}
fetchIfRefAsync(obj) {
return Promise.resolve(this.fetchIfRef(obj));
}
}
function createIdFactory(pageIndex) {
const page = new Page({
pdfManager: {
get docId() {
return "d0";
},
},
pageIndex,
});
return page.idFactory;
}
function isEmptyObj(obj) {
assert(
typeof obj === "object" && obj !== null,
"isEmptyObj - invalid argument."
);
return Object.keys(obj).length === 0;
}
export {
DOMFileReaderFactory,
NodeFileReaderFactory,
XRefMock,
buildGetDocumentParams,
TEST_PDFS_PATH,
createIdFactory,
isEmptyObj,
};