320 lines
13 KiB
JavaScript
320 lines
13 KiB
JavaScript
/**
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* @licstart The following is the entire license notice for the
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* JavaScript code in this page
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*
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* Copyright 2022 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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* @licend The above is the entire license notice for the
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* JavaScript code in this page
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*/
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"use strict";
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var _test_utils = require("./test_utils.js");
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var _primitives = require("../../core/primitives.js");
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var _util = require("../../shared/util.js");
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var _stream = require("../../core/stream.js");
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var _operator_list = require("../../core/operator_list.js");
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var _evaluator = require("../../core/evaluator.js");
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var _worker = require("../../core/worker.js");
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describe("evaluator", function () {
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function HandlerMock() {
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this.inputs = [];
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}
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HandlerMock.prototype = {
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send(name, data) {
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this.inputs.push({
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name,
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data
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});
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}
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};
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function ResourcesMock() {}
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ResourcesMock.prototype = {
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get(name) {
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return this[name];
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}
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};
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async function runOperatorListCheck(evaluator, stream, resources) {
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const operatorList = new _operator_list.OperatorList();
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const task = new _worker.WorkerTask("OperatorListCheck");
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await evaluator.getOperatorList({
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stream,
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task,
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resources,
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operatorList
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});
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return operatorList;
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}
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let partialEvaluator;
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beforeAll(function () {
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partialEvaluator = new _evaluator.PartialEvaluator({
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xref: new _test_utils.XRefMock(),
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handler: new HandlerMock(),
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pageIndex: 0,
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idFactory: (0, _test_utils.createIdFactory)(0)
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});
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});
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afterAll(function () {
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partialEvaluator = null;
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});
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describe("splitCombinedOperations", function () {
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it("should reject unknown operations", async function () {
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const stream = new _stream.StringStream("fTT");
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const result = await runOperatorListCheck(partialEvaluator, stream, new ResourcesMock());
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expect(!!result.fnArray && !!result.argsArray).toEqual(true);
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expect(result.fnArray.length).toEqual(1);
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expect(result.fnArray[0]).toEqual(_util.OPS.fill);
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expect(result.argsArray[0]).toEqual(null);
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});
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it("should handle one operation", async function () {
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const stream = new _stream.StringStream("Q");
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const result = await runOperatorListCheck(partialEvaluator, stream, new ResourcesMock());
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expect(!!result.fnArray && !!result.argsArray).toEqual(true);
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expect(result.fnArray.length).toEqual(1);
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expect(result.fnArray[0]).toEqual(_util.OPS.restore);
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});
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it("should handle two glued operations", async function () {
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const imgDict = new _primitives.Dict();
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imgDict.set("Subtype", _primitives.Name.get("Image"));
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imgDict.set("Width", 1);
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imgDict.set("Height", 1);
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const imgStream = new _stream.Stream([0]);
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imgStream.dict = imgDict;
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const xObject = new _primitives.Dict();
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xObject.set("Res1", imgStream);
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const resources = new ResourcesMock();
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resources.XObject = xObject;
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const stream = new _stream.StringStream("/Res1 DoQ");
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const result = await runOperatorListCheck(partialEvaluator, stream, resources);
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expect(result.fnArray.length).toEqual(3);
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expect(result.fnArray[0]).toEqual(_util.OPS.dependency);
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expect(result.fnArray[1]).toEqual(_util.OPS.paintImageXObject);
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expect(result.fnArray[2]).toEqual(_util.OPS.restore);
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expect(result.argsArray.length).toEqual(3);
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expect(result.argsArray[0]).toEqual(["img_p0_1"]);
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expect(result.argsArray[1]).toEqual(["img_p0_1", 1, 1]);
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expect(result.argsArray[2]).toEqual(null);
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});
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it("should handle three glued operations", async function () {
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const stream = new _stream.StringStream("fff");
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const result = await runOperatorListCheck(partialEvaluator, stream, new ResourcesMock());
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expect(!!result.fnArray && !!result.argsArray).toEqual(true);
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expect(result.fnArray.length).toEqual(3);
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expect(result.fnArray[0]).toEqual(_util.OPS.fill);
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expect(result.fnArray[1]).toEqual(_util.OPS.fill);
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expect(result.fnArray[2]).toEqual(_util.OPS.fill);
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});
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it("should handle three glued operations #2", async function () {
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const resources = new ResourcesMock();
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resources.Res1 = {};
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const stream = new _stream.StringStream("B*Bf*");
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const result = await runOperatorListCheck(partialEvaluator, stream, resources);
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expect(!!result.fnArray && !!result.argsArray).toEqual(true);
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expect(result.fnArray.length).toEqual(3);
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expect(result.fnArray[0]).toEqual(_util.OPS.eoFillStroke);
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expect(result.fnArray[1]).toEqual(_util.OPS.fillStroke);
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expect(result.fnArray[2]).toEqual(_util.OPS.eoFill);
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});
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it("should handle glued operations and operands", async function () {
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const stream = new _stream.StringStream("f5 Ts");
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const result = await runOperatorListCheck(partialEvaluator, stream, new ResourcesMock());
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expect(!!result.fnArray && !!result.argsArray).toEqual(true);
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expect(result.fnArray.length).toEqual(2);
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expect(result.fnArray[0]).toEqual(_util.OPS.fill);
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expect(result.fnArray[1]).toEqual(_util.OPS.setTextRise);
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expect(result.argsArray.length).toEqual(2);
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expect(result.argsArray[1].length).toEqual(1);
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expect(result.argsArray[1][0]).toEqual(5);
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});
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it("should handle glued operations and literals", async function () {
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const stream = new _stream.StringStream("trueifalserinulln");
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const result = await runOperatorListCheck(partialEvaluator, stream, new ResourcesMock());
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expect(!!result.fnArray && !!result.argsArray).toEqual(true);
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expect(result.fnArray.length).toEqual(3);
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expect(result.fnArray[0]).toEqual(_util.OPS.setFlatness);
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expect(result.fnArray[1]).toEqual(_util.OPS.setRenderingIntent);
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expect(result.fnArray[2]).toEqual(_util.OPS.endPath);
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expect(result.argsArray.length).toEqual(3);
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expect(result.argsArray[0].length).toEqual(1);
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expect(result.argsArray[0][0]).toEqual(true);
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expect(result.argsArray[1].length).toEqual(1);
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expect(result.argsArray[1][0]).toEqual(false);
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expect(result.argsArray[2]).toEqual(null);
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});
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});
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describe("validateNumberOfArgs", function () {
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it("should execute if correct number of arguments", async function () {
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const stream = new _stream.StringStream("5 1 d0");
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const result = await runOperatorListCheck(partialEvaluator, stream, new ResourcesMock());
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expect(result.argsArray[0][0]).toEqual(5);
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expect(result.argsArray[0][1]).toEqual(1);
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expect(result.fnArray[0]).toEqual(_util.OPS.setCharWidth);
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});
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it("should execute if too many arguments", async function () {
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const stream = new _stream.StringStream("5 1 4 d0");
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const result = await runOperatorListCheck(partialEvaluator, stream, new ResourcesMock());
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expect(result.argsArray[0][0]).toEqual(1);
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expect(result.argsArray[0][1]).toEqual(4);
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expect(result.fnArray[0]).toEqual(_util.OPS.setCharWidth);
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});
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it("should execute if nested commands", async function () {
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const gState = new _primitives.Dict();
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gState.set("LW", 2);
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gState.set("CA", 0.5);
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const extGState = new _primitives.Dict();
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extGState.set("GS2", gState);
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const resources = new ResourcesMock();
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resources.ExtGState = extGState;
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const stream = new _stream.StringStream("/F2 /GS2 gs 5.711 Tf");
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const result = await runOperatorListCheck(partialEvaluator, stream, resources);
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expect(result.fnArray.length).toEqual(3);
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expect(result.fnArray[0]).toEqual(_util.OPS.setGState);
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expect(result.fnArray[1]).toEqual(_util.OPS.dependency);
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expect(result.fnArray[2]).toEqual(_util.OPS.setFont);
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expect(result.argsArray.length).toEqual(3);
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expect(result.argsArray[0]).toEqual([[["LW", 2], ["CA", 0.5]]]);
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expect(result.argsArray[1]).toEqual(["g_font_error"]);
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expect(result.argsArray[2]).toEqual(["g_font_error", 5.711]);
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});
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it("should skip if too few arguments", async function () {
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const stream = new _stream.StringStream("5 d0");
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const result = await runOperatorListCheck(partialEvaluator, stream, new ResourcesMock());
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expect(result.argsArray).toEqual([]);
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expect(result.fnArray).toEqual([]);
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});
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it("should error if (many) path operators have too few arguments " + "(bug 1443140)", async function () {
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const NUM_INVALID_OPS = 25;
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const invalidMoveText = "10 Td\n".repeat(NUM_INVALID_OPS);
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const moveTextStream = new _stream.StringStream(invalidMoveText);
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const result = await runOperatorListCheck(partialEvaluator, moveTextStream, new ResourcesMock());
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expect(result.argsArray).toEqual([]);
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expect(result.fnArray).toEqual([]);
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const invalidLineTo = "20 l\n".repeat(NUM_INVALID_OPS);
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const lineToStream = new _stream.StringStream(invalidLineTo);
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try {
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await runOperatorListCheck(partialEvaluator, lineToStream, new ResourcesMock());
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expect(false).toEqual(true);
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} catch (reason) {
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expect(reason instanceof _util.FormatError).toEqual(true);
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expect(reason.message).toEqual("Invalid command l: expected 2 args, but received 1 args.");
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}
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});
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it("should close opened saves", async function () {
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const stream = new _stream.StringStream("qq");
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const result = await runOperatorListCheck(partialEvaluator, stream, new ResourcesMock());
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expect(!!result.fnArray && !!result.argsArray).toEqual(true);
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expect(result.fnArray.length).toEqual(4);
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expect(result.fnArray[0]).toEqual(_util.OPS.save);
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expect(result.fnArray[1]).toEqual(_util.OPS.save);
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expect(result.fnArray[2]).toEqual(_util.OPS.restore);
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expect(result.fnArray[3]).toEqual(_util.OPS.restore);
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});
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it("should error on paintXObject if name is missing", async function () {
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const stream = new _stream.StringStream("/ Do");
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try {
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await runOperatorListCheck(partialEvaluator, stream, new ResourcesMock());
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expect(false).toEqual(true);
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} catch (reason) {
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expect(reason instanceof _util.FormatError).toEqual(true);
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expect(reason.message).toEqual("XObject should be a stream");
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}
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});
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it("should skip paintXObject if subtype is PS", async function () {
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const xobjStreamDict = new _primitives.Dict();
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xobjStreamDict.set("Subtype", _primitives.Name.get("PS"));
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const xobjStream = new _stream.Stream([], 0, 0, xobjStreamDict);
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const xobjs = new _primitives.Dict();
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xobjs.set("Res1", xobjStream);
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const resources = new _primitives.Dict();
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resources.set("XObject", xobjs);
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const stream = new _stream.StringStream("/Res1 Do");
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const result = await runOperatorListCheck(partialEvaluator, stream, resources);
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expect(result.argsArray).toEqual([]);
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expect(result.fnArray).toEqual([]);
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});
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});
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describe("thread control", function () {
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it("should abort operator list parsing", async function () {
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const stream = new _stream.StringStream("qqQQ");
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const resources = new ResourcesMock();
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const result = new _operator_list.OperatorList();
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const task = new _worker.WorkerTask("OperatorListAbort");
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task.terminate();
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try {
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await partialEvaluator.getOperatorList({
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stream,
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task,
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resources,
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operatorList: result
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});
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expect(false).toEqual(true);
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} catch (_) {
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expect(!!result.fnArray && !!result.argsArray).toEqual(true);
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expect(result.fnArray.length).toEqual(0);
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}
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});
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it("should abort text content parsing", async function () {
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const resources = new ResourcesMock();
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const stream = new _stream.StringStream("qqQQ");
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const task = new _worker.WorkerTask("TextContentAbort");
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task.terminate();
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try {
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await partialEvaluator.getTextContent({
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stream,
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task,
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resources
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});
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expect(false).toEqual(true);
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} catch (_) {
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expect(true).toEqual(true);
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}
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});
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});
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describe("operator list", function () {
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class StreamSinkMock {
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enqueue() {}
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}
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it("should get correct total length after flushing", function () {
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const operatorList = new _operator_list.OperatorList(null, new StreamSinkMock());
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operatorList.addOp(_util.OPS.save, null);
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operatorList.addOp(_util.OPS.restore, null);
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expect(operatorList.totalLength).toEqual(2);
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expect(operatorList.length).toEqual(2);
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operatorList.flush();
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expect(operatorList.totalLength).toEqual(2);
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expect(operatorList.length).toEqual(0);
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});
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});
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}); |