182 lines
7.9 KiB
JavaScript
182 lines
7.9 KiB
JavaScript
/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
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/* globals expect, it, describe, PartialEvaluator, StringStream, OPS */
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'use strict';
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describe('evaluator', function() {
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function XrefMock(queue) {
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this.queue = queue;
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}
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XrefMock.prototype = {
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fetchIfRef: function() {
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return this.queue.shift();
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}
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};
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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: function(name, data) {
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this.inputs({name: name, data: data});
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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: function(name) {
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return this[name];
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}
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};
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function PdfManagerMock() { }
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describe('splitCombinedOperations', function() {
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it('should reject unknown operations', function() {
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var evaluator = new PartialEvaluator(new PdfManagerMock(),
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new XrefMock(), new HandlerMock(),
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'prefix');
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var stream = new StringStream('fTT');
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var result = evaluator.getOperatorList(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(OPS.fill);
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expect(result.argsArray[0].length).toEqual(0);
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});
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it('should handle one operations', function() {
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var evaluator = new PartialEvaluator(new PdfManagerMock(),
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new XrefMock(), new HandlerMock(),
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'prefix');
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var stream = new StringStream('Q');
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var result = evaluator.getOperatorList(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(OPS.restore);
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});
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it('should handle two glued operations', function() {
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var evaluator = new PartialEvaluator(new PdfManagerMock(),
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new XrefMock(), new HandlerMock(),
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'prefix');
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var resources = new ResourcesMock();
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resources.Res1 = {};
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var stream = new StringStream('/Res1 DoQ');
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var result = evaluator.getOperatorList(stream, resources);
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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(OPS.paintXObject);
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expect(result.fnArray[1]).toEqual(OPS.restore);
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});
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it('should handle tree glued operations', function() {
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var evaluator = new PartialEvaluator(new PdfManagerMock(),
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new XrefMock(), new HandlerMock(),
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'prefix');
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var stream = new StringStream('fff');
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var result = evaluator.getOperatorList(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(OPS.fill);
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expect(result.fnArray[1]).toEqual(OPS.fill);
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expect(result.fnArray[2]).toEqual(OPS.fill);
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});
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it('should handle three glued operations #2', function() {
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var evaluator = new PartialEvaluator(new PdfManagerMock(),
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new XrefMock(), new HandlerMock(),
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'prefix');
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var resources = new ResourcesMock();
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resources.Res1 = {};
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var stream = new StringStream('B*Bf*');
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var result = evaluator.getOperatorList(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(OPS.eoFillStroke);
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expect(result.fnArray[1]).toEqual(OPS.fillStroke);
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expect(result.fnArray[2]).toEqual(OPS.eoFill);
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});
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it('should handle glued operations and operands', function() {
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var evaluator = new PartialEvaluator(new PdfManagerMock(),
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new XrefMock(), new HandlerMock(),
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'prefix');
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var stream = new StringStream('f5 Ts');
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var result = evaluator.getOperatorList(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(OPS.fill);
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expect(result.fnArray[1]).toEqual(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', function() {
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var evaluator = new PartialEvaluator(new PdfManagerMock(),
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new XrefMock(), new HandlerMock(),
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'prefix');
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var stream = new StringStream('trueifalserinullh');
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var result = evaluator.getOperatorList(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(OPS.setFlatness);
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expect(result.fnArray[1]).toEqual(OPS.setRenderingIntent);
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expect(result.fnArray[2]).toEqual(OPS.closePath);
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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].length).toEqual(0);
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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', function() {
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var evaluator = new PartialEvaluator(new PdfManagerMock(),
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new XrefMock(), new HandlerMock(),
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'prefix');
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var stream = new StringStream('5 1 d0');
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console.log('here!');
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var result = evaluator.getOperatorList(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(OPS.setCharWidth);
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});
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it('should execute if too many arguments', function() {
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var evaluator = new PartialEvaluator(new PdfManagerMock(),
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new XrefMock(), new HandlerMock(),
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'prefix');
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var stream = new StringStream('5 1 4 d0');
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var result = evaluator.getOperatorList(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.argsArray[0][2]).toEqual(4);
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expect(result.fnArray[0]).toEqual(OPS.setCharWidth);
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});
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it('should skip if too few arguments', function() {
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var evaluator = new PartialEvaluator(new PdfManagerMock(),
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new XrefMock(), new HandlerMock(),
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'prefix');
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var stream = new StringStream('5 d0');
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var result = evaluator.getOperatorList(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 close opened saves', function() {
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var evaluator = new PartialEvaluator(new PdfManagerMock(),
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new XrefMock(), new HandlerMock(),
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'prefix');
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var stream = new StringStream('qq');
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var result = evaluator.getOperatorList(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(OPS.save);
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expect(result.fnArray[1]).toEqual(OPS.save);
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expect(result.fnArray[2]).toEqual(OPS.restore);
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expect(result.fnArray[3]).toEqual(OPS.restore);
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});
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});
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});
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