pdf.js/test/unit/dom_utils_spec.js
Tim van der Meij f7fd1db52f
Introduce DOMSVGFactory
This patch provides a new unit tested factory for creating SVG
containers and elements. This code is duplicated twice in the
codebase, but with upcoming changes this would need to be duplicated
even more. Moreover, consolidating this code in one factory allows
us to replace it easily for e.g., supporting Node.js. Therefore, move
this to a central place and update/ES6-ify the related code.

Finally, we replace `setAttributeNS` with `setAttribute` because no
namespace is provided.
2017-09-09 21:36:27 +02:00

132 lines
3.9 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 {
DOMSVGFactory, getFilenameFromUrl, isExternalLinkTargetSet, LinkTarget
} from '../../src/display/dom_utils';
import { isNodeJS } from '../../src/shared/util';
import { PDFJS } from '../../src/display/global';
describe('dom_utils', function() {
describe('DOMSVGFactory', function() {
let svgFactory;
beforeAll(function (done) {
svgFactory = new DOMSVGFactory();
done();
});
afterAll(function () {
svgFactory = null;
});
it('`create` should throw an error if the dimensions are invalid',
function() {
// Invalid width.
expect(function() {
return svgFactory.create(-1, 0);
}).toThrow(new Error('Invalid SVG dimensions'));
// Invalid height.
expect(function() {
return svgFactory.create(0, -1);
}).toThrow(new Error('Invalid SVG dimensions'));
});
it('`create` should return an SVG element if the dimensions are valid',
function() {
if (isNodeJS()) {
pending('Document is not supported in Node.js.');
}
let svg = svgFactory.create(20, 40);
expect(svg instanceof SVGSVGElement).toBe(true);
expect(svg.getAttribute('version')).toBe('1.1');
expect(svg.getAttribute('width')).toBe('20px');
expect(svg.getAttribute('height')).toBe('40px');
expect(svg.getAttribute('preserveAspectRatio')).toBe('none');
expect(svg.getAttribute('viewBox')).toBe('0 0 20 40');
});
it('`createElement` should throw an error if the type is not a string',
function() {
expect(function() {
return svgFactory.createElement(true);
}).toThrow(new Error('Invalid SVG element type'));
});
it('`createElement` should return an SVG element if the type is valid',
function() {
if (isNodeJS()) {
pending('Document is not supported in Node.js.');
}
let svg = svgFactory.createElement('svg:rect');
expect(svg instanceof SVGRectElement).toBe(true);
});
});
describe('getFilenameFromUrl', function() {
it('should get the filename from an absolute URL', function() {
var url = 'http://server.org/filename.pdf';
var result = getFilenameFromUrl(url);
var expected = 'filename.pdf';
expect(result).toEqual(expected);
});
it('should get the filename from a relative URL', function() {
var url = '../../filename.pdf';
var result = getFilenameFromUrl(url);
var expected = 'filename.pdf';
expect(result).toEqual(expected);
});
});
describe('isExternalLinkTargetSet', function() {
var savedExternalLinkTarget;
beforeAll(function (done) {
savedExternalLinkTarget = PDFJS.externalLinkTarget;
done();
});
afterAll(function () {
PDFJS.externalLinkTarget = savedExternalLinkTarget;
});
it('handles the predefined LinkTargets', function() {
for (var key in LinkTarget) {
var linkTarget = LinkTarget[key];
PDFJS.externalLinkTarget = linkTarget;
expect(isExternalLinkTargetSet()).toEqual(!!linkTarget);
}
});
it('handles incorrect LinkTargets', function() {
var targets = [true, '', false, -1, '_blank', null];
for (var i = 0, ii = targets.length; i < ii; i++) {
var linkTarget = targets[i];
PDFJS.externalLinkTarget = linkTarget;
expect(isExternalLinkTargetSet()).toEqual(false);
}
});
});
});