Add unit-tests for colorspace.js
Added unit-tests for DeviceGray, DeviceRGB and DeviceCMYK Added unit-tests for CalGray Added unit-tests for CalRGB Removed redundant code Added unit-tests for LabCS Added unit-tests for IndexedCS Update comment Change lookup to Uint8Array as mentioned in pdf specs(these tests will pass after PR #8666 is merged). Added unit-tests for AlternateCS Resolved code-style issues Fixed code-style issues Addressed issues pointed out in https://github.com/mozilla/pdf.js/pull/8611#pullrequestreview-52865469
This commit is contained in:
Apoorv Mishra
parent
343b4dc2b6
commit
a129de7bd1
@ -1111,11 +1111,7 @@ var CalRGBCS = (function CalRGBCSClosure() {
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}
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CalRGBCS.prototype = {
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getRgb: function CalRGBCS_getRgb(src, srcOffset) {
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var rgb = new Uint8Array(3);
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this.getRgbItem(src, srcOffset, rgb, 0);
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return rgb;
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},
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getRgb: ColorSpace.prototype.getRgb,
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getRgbItem: function CalRGBCS_getRgbItem(src, srcOffset,
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dest, destOffset) {
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convertToRgb(this, src, srcOffset, dest, destOffset, 1);
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@ -6,6 +6,7 @@
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"bidi_spec.js",
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"cff_parser_spec.js",
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"cmap_spec.js",
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"colorspace_spec.js",
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"crypto_spec.js",
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"display_svg_spec.js",
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"document_spec.js",
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546
test/unit/colorspace_spec.js
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546
test/unit/colorspace_spec.js
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@ -0,0 +1,546 @@
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/* 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 { Dict, isRef, Name, Ref } from '../../src/core/primitives';
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import { Stream, StringStream } from '../../src/core/stream';
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import { ColorSpace } from '../../src/core/colorspace';
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describe('colorspace', function () {
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class XRefMock {
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constructor(array) {
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this.map = Object.create(null);
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for (let elem in array) {
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let obj = array[elem];
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let ref = obj.ref;
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let data = obj.data;
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this.map[ref.toString()] = data;
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}
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}
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fetch(ref) {
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return this.map[ref.toString()];
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}
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fetchIfRef(obj) {
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if (!isRef(obj)) {
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return obj;
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}
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return this.fetch(obj);
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}
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}
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describe('ColorSpace', function () {
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it('should be true if decode is not an array', function () {
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expect(ColorSpace.isDefaultDecode('string', 0)).toBeTruthy();
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});
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it('should be true if length of decode array is not correct',
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function () {
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expect(ColorSpace.isDefaultDecode([0], 1)).toBeTruthy();
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expect(ColorSpace.isDefaultDecode([0, 1, 0], 1)).toBeTruthy();
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});
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it('should be true if decode map matches the default decode map',
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function () {
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expect(ColorSpace.isDefaultDecode([], 0)).toBeTruthy();
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expect(ColorSpace.isDefaultDecode([0, 0], 1)).toBeFalsy();
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expect(ColorSpace.isDefaultDecode([0, 1], 1)).toBeTruthy();
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expect(ColorSpace.isDefaultDecode([0, 1, 0, 1, 0, 1], 3)).toBeTruthy();
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expect(ColorSpace.isDefaultDecode([0, 1, 0, 1, 1, 1], 3)).toBeFalsy();
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expect(ColorSpace.isDefaultDecode([0, 1, 0, 1, 0, 1, 0, 1], 4))
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.toBeTruthy();
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expect(ColorSpace.isDefaultDecode([1, 0, 0, 1, 0, 1, 0, 1], 4))
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.toBeFalsy();
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});
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});
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describe('DeviceGrayCS', function () {
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it('should handle the case when cs is a Name object', function () {
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let cs = Name.get('DeviceGray');
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let xref = new XRefMock([{
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ref: new Ref(10, 0),
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data: new Dict(),
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}]);
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let res = new Dict();
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let colorSpace = ColorSpace.parse(cs, xref, res);
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let testSrc = new Uint8Array([27, 125, 250, 131]);
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let testDest = new Uint8Array(4 * 4 * 3);
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let expectedDest = new Uint8Array([
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27, 27, 27,
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27, 27, 27,
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125, 125, 125,
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125, 125, 125,
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27, 27, 27,
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27, 27, 27,
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125, 125, 125,
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125, 125, 125,
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250, 250, 250,
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250, 250, 250,
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131, 131, 131,
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131, 131, 131,
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250, 250, 250,
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250, 250, 250,
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131, 131, 131,
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131, 131, 131
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]);
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colorSpace.fillRgb(testDest, 2, 2, 4, 4, 4, 8, testSrc, 0);
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expect(colorSpace.getRgb(new Float32Array([0.1]), 0))
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.toEqual(new Uint8Array([25, 25, 25]));
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expect(colorSpace.getOutputLength(2, 0)).toEqual(6);
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expect(colorSpace.isPassthrough(8)).toBeFalsy();
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expect(testDest).toEqual(expectedDest);
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});
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it('should handle the case when cs is an indirect object', function () {
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let cs = new Ref(10, 0);
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let xref = new XRefMock([{
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ref: cs,
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data: Name.get('DeviceGray'),
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}]);
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let res = new Dict();
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let colorSpace = ColorSpace.parse(cs, xref, res);
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let testSrc = new Uint8Array([27, 125, 250, 131]);
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let testDest = new Uint8Array(3 * 3 * 3);
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let expectedDest = new Uint8Array([
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27, 27, 27,
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27, 27, 27,
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125, 125, 125,
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27, 27, 27,
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27, 27, 27,
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125, 125, 125,
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250, 250, 250,
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250, 250, 250,
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131, 131, 131
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]);
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colorSpace.fillRgb(testDest, 2, 2, 3, 3, 3, 8, testSrc, 0);
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expect(colorSpace.getRgb(new Float32Array([0.2]), 0))
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.toEqual(new Uint8Array([51, 51, 51]));
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expect(colorSpace.getOutputLength(3, 1)).toEqual(12);
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expect(colorSpace.isPassthrough(8)).toBeFalsy();
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expect(testDest).toEqual(expectedDest);
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});
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});
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describe('DeviceRgbCS', function () {
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it('should handle the case when cs is a Name object', function () {
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let cs = Name.get('DeviceRGB');
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let xref = new XRefMock([{
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ref: new Ref(10, 0),
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data: new Dict(),
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}]);
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let res = new Dict();
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let colorSpace = ColorSpace.parse(cs, xref, res);
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let testSrc = new Uint8Array([
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27, 125, 250,
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131, 139, 140,
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111, 25, 198,
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21, 147, 255
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]);
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let testDest = new Uint8Array(4 * 4 * 3);
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let expectedDest = new Uint8Array([
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27, 125, 250,
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27, 125, 250,
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131, 139, 140,
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131, 139, 140,
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27, 125, 250,
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27, 125, 250,
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131, 139, 140,
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131, 139, 140,
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111, 25, 198,
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111, 25, 198,
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21, 147, 255,
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21, 147, 255,
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111, 25, 198,
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111, 25, 198,
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21, 147, 255,
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21, 147, 255
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]);
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colorSpace.fillRgb(testDest, 2, 2, 4, 4, 4, 8, testSrc, 0);
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expect(colorSpace.getRgb(new Float32Array([0.1, 0.2, 0.3]), 0))
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.toEqual(new Uint8Array([25, 51, 76]));
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expect(colorSpace.getOutputLength(4, 0)).toEqual(4);
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expect(colorSpace.isPassthrough(8)).toBeTruthy();
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expect(testDest).toEqual(expectedDest);
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});
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it('should handle the case when cs is an indirect object', function () {
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let cs = new Ref(10, 0);
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let xref = new XRefMock([{
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ref: cs,
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data: Name.get('DeviceRGB'),
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}]);
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let res = new Dict();
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let colorSpace = ColorSpace.parse(cs, xref, res);
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let testSrc = new Uint8Array([
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27, 125, 250,
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131, 139, 140,
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111, 25, 198,
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21, 147, 255
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]);
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let testDest = new Uint8Array(3 * 3 * 3);
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let expectedDest = new Uint8Array([
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27, 125, 250,
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27, 125, 250,
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131, 139, 140,
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27, 125, 250,
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27, 125, 250,
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131, 139, 140,
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111, 25, 198,
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111, 25, 198,
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21, 147, 255
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]);
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colorSpace.fillRgb(testDest, 2, 2, 3, 3, 3, 8, testSrc, 0);
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expect(colorSpace.getRgb(new Float32Array([0.1, 0.2, 0.3]), 0))
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.toEqual(new Uint8Array([25, 51, 76]));
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expect(colorSpace.getOutputLength(4, 1)).toEqual(5);
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expect(colorSpace.isPassthrough(8)).toBeTruthy();
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expect(testDest).toEqual(expectedDest);
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});
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});
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describe('DeviceCmykCS', function () {
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it('should handle the case when cs is a Name object', function () {
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let cs = Name.get('DeviceCMYK');
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let xref = new XRefMock([{
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ref: new Ref(10, 0),
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data: new Dict(),
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}]);
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let res = new Dict();
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let colorSpace = ColorSpace.parse(cs, xref, res);
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let testSrc = new Uint8Array([
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27, 125, 250, 128,
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131, 139, 140, 45,
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111, 25, 198, 78,
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21, 147, 255, 69
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]);
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let testDest = new Uint8Array(4 * 4 * 3);
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let expectedDest = new Uint8Array([
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135, 80, 18,
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135, 80, 18,
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113, 102, 97,
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113, 102, 97,
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135, 80, 18,
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135, 80, 18,
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113, 102, 97,
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113, 102, 97,
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112, 143, 75,
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112, 143, 75,
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188, 98, 27,
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188, 98, 27,
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112, 143, 75,
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112, 143, 75,
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188, 98, 27,
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188, 98, 27
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]);
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colorSpace.fillRgb(testDest, 2, 2, 4, 4, 4, 8, testSrc, 0);
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expect(colorSpace.getRgb(new Float32Array([0.1, 0.2, 0.3, 1]),
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0)).toEqual(new Uint8Array([31, 27, 20]));
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expect(colorSpace.getOutputLength(4, 0)).toEqual(3);
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expect(colorSpace.isPassthrough(8)).toBeFalsy();
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expect(testDest).toEqual(expectedDest);
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});
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it('should handle the case when cs is an indirect object', function () {
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let cs = new Ref(10, 0);
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let xref = new XRefMock([{
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ref: cs,
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data: Name.get('DeviceCMYK'),
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}]);
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let res = new Dict();
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let colorSpace = ColorSpace.parse(cs, xref, res);
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let testSrc = new Uint8Array([
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27, 125, 250, 128,
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131, 139, 140, 45,
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111, 25, 198, 78,
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21, 147, 255, 69
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]);
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let testDest = new Uint8Array(3 * 3 * 3);
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let expectedDest = new Uint8Array([
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135, 80, 18,
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135, 80, 18,
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113, 102, 97,
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135, 80, 18,
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135, 80, 18,
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113, 102, 97,
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112, 143, 75,
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112, 143, 75,
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188, 98, 27
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]);
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colorSpace.fillRgb(testDest, 2, 2, 3, 3, 3, 8, testSrc, 0);
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expect(colorSpace.getRgb(new Float32Array([0.1, 0.2, 0.3, 1]), 0))
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.toEqual(new Uint8Array([31, 27, 20]));
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expect(colorSpace.getOutputLength(4, 1)).toEqual(4);
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expect(colorSpace.isPassthrough(8)).toBeFalsy();
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expect(testDest).toEqual(expectedDest);
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});
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});
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describe('CalGrayCS', function () {
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it('should handle the case when cs is an array', function () {
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let params = new Dict();
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params.set('WhitePoint', [1, 1, 1]);
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params.set('BlackPoint', [0, 0, 0]);
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params.set('Gamma', 2.0);
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let cs = [
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Name.get('CalGray'),
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params,
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];
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let xref = new XRefMock([{
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ref: new Ref(10, 0),
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data: new Dict(),
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}]);
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let res = new Dict();
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let colorSpace = ColorSpace.parse(cs, xref, res);
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let testSrc = new Uint8Array([27, 125, 250, 131]);
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let testDest = new Uint8Array(4 * 4 * 3);
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let expectedDest = new Uint8Array([
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25, 25, 25,
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25, 25, 25,
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143, 143, 143,
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143, 143, 143,
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25, 25, 25,
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25, 25, 25,
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143, 143, 143,
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143, 143, 143,
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251, 251, 251,
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251, 251, 251,
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148, 148, 148,
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148, 148, 148,
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251, 251, 251,
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251, 251, 251,
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148, 148, 148,
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148, 148, 148
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]);
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colorSpace.fillRgb(testDest, 2, 2, 4, 4, 4, 8, testSrc, 0);
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expect(colorSpace.getRgb(new Float32Array([1.0]), 0))
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.toEqual(new Uint8Array([255, 255, 255]));
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expect(colorSpace.getOutputLength(4, 0)).toEqual(12);
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expect(colorSpace.isPassthrough(8)).toBeFalsy();
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expect(testDest).toEqual(expectedDest);
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});
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});
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describe('CalRGBCS', function () {
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it('should handle the case when cs is an array', function () {
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let params = new Dict();
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params.set('WhitePoint', [1, 1, 1]);
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params.set('BlackPoint', [0, 0, 0]);
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params.set('Gamma', [1, 1, 1]);
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params.set('Matrix', [1, 0, 0, 0, 1, 0, 0, 0, 1]);
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let cs = [
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Name.get('CalRGB'),
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params,
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];
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let xref = new XRefMock([{
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ref: new Ref(10, 0),
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data: new Dict(),
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}]);
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let res = new Dict();
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let colorSpace = ColorSpace.parse(cs, xref, res);
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let testSrc = new Uint8Array([
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27, 125, 250,
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131, 139, 140,
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111, 25, 198,
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21, 147, 255
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]);
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let testDest = new Uint8Array(3 * 3 * 3);
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let expectedDest = new Uint8Array([
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0, 238, 255,
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0, 238, 255,
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185, 196, 195,
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0, 238, 255,
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0, 238, 255,
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185, 196, 195,
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235, 0, 243,
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235, 0, 243,
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0, 255, 255
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]);
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colorSpace.fillRgb(testDest, 2, 2, 3, 3, 3, 8, testSrc, 0);
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expect(colorSpace.getRgb(new Float32Array([0.1, 0.2, 0.3]), 0))
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.toEqual(new Uint8Array([0, 147, 151]));
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expect(colorSpace.getOutputLength(4, 0)).toEqual(4);
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expect(colorSpace.isPassthrough(8)).toBeFalsy();
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expect(testDest).toEqual(expectedDest);
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});
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});
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describe('LabCS', function () {
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it('should handle the case when cs is an array', function () {
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let params = new Dict();
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params.set('WhitePoint', [1, 1, 1]);
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params.set('BlackPoint', [0, 0, 0]);
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params.set('Range', [-100, 100, -100, 100]);
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let cs = [
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Name.get('Lab'),
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params,
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];
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let xref = new XRefMock([{
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ref: new Ref(10, 0),
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data: new Dict(),
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}]);
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let res = new Dict();
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let colorSpace = ColorSpace.parse(cs, xref, res);
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let testSrc = new Uint8Array([
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27, 25, 50,
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31, 19, 40,
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11, 25, 98,
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21, 47, 55
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]);
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let testDest = new Uint8Array(3 * 3 * 3);
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let expectedDest = new Uint8Array([
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0, 49, 101,
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0, 49, 101,
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0, 53, 116,
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0, 49, 101,
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0, 49, 101,
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0, 53, 116,
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0, 40, 39,
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0, 40, 39,
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0, 43, 90
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]);
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colorSpace.fillRgb(testDest, 2, 2, 3, 3, 3, 8, testSrc, 0);
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expect(colorSpace.getRgb([55, 25, 35], 0))
|
||||
.toEqual(new Uint8Array([188, 99, 61]));
|
||||
expect(colorSpace.getOutputLength(4, 0)).toEqual(4);
|
||||
expect(colorSpace.isPassthrough(8)).toBeFalsy();
|
||||
expect(colorSpace.isDefaultDecode([0, 1])).toBeTruthy();
|
||||
expect(testDest).toEqual(expectedDest);
|
||||
});
|
||||
});
|
||||
|
||||
describe('IndexedCS', function () {
|
||||
it('should handle the case when cs is an array', function () {
|
||||
let lookup = new Uint8Array([
|
||||
23, 155, 35,
|
||||
147, 69, 93,
|
||||
255, 109, 70
|
||||
]);
|
||||
let cs = [
|
||||
Name.get('Indexed'),
|
||||
Name.get('DeviceRGB'),
|
||||
2,
|
||||
lookup,
|
||||
];
|
||||
let xref = new XRefMock([{
|
||||
ref: new Ref(10, 0),
|
||||
data: new Dict(),
|
||||
}]);
|
||||
let res = new Dict();
|
||||
|
||||
let colorSpace = ColorSpace.parse(cs, xref, res);
|
||||
|
||||
let testSrc = new Uint8Array([2, 2, 0, 1]);
|
||||
let testDest = new Uint8Array(3 * 3 * 3);
|
||||
let expectedDest = new Uint8Array([
|
||||
255, 109, 70,
|
||||
255, 109, 70,
|
||||
255, 109, 70,
|
||||
255, 109, 70,
|
||||
255, 109, 70,
|
||||
255, 109, 70,
|
||||
23, 155, 35,
|
||||
23, 155, 35,
|
||||
147, 69, 93,
|
||||
]);
|
||||
colorSpace.fillRgb(testDest, 2, 2, 3, 3, 3, 8, testSrc, 0);
|
||||
|
||||
expect(colorSpace.getRgb([2], 0)).toEqual(new Uint8Array([255, 109, 70]));
|
||||
expect(colorSpace.isPassthrough(8)).toBeFalsy();
|
||||
expect(colorSpace.isDefaultDecode([0, 1])).toBeTruthy();
|
||||
expect(testDest).toEqual(expectedDest);
|
||||
});
|
||||
});
|
||||
|
||||
describe('AlternateCS', function () {
|
||||
it('should handle the case when cs is an array', function () {
|
||||
let fnDict = new Dict();
|
||||
fnDict.set('FunctionType', 4);
|
||||
fnDict.set('Domain', [0.0, 1.0]);
|
||||
fnDict.set('Range', [0.0, 1.0, 0.0, 1.0, 0.0, 1.0, 0.0, 1.0]);
|
||||
fnDict.set('Length', 58);
|
||||
|
||||
let fn = new StringStream('{ dup 0.84 mul ' +
|
||||
'exch 0.00 exch ' +
|
||||
'dup 0.44 mul ' +
|
||||
'exch 0.21 mul }');
|
||||
fn = new Stream(fn.bytes, 0, 58, fnDict);
|
||||
|
||||
let fnRef = new Ref(10, 0);
|
||||
|
||||
let cs = [
|
||||
Name.get('Separation'),
|
||||
Name.get('LogoGreen'),
|
||||
Name.get('DeviceCMYK'),
|
||||
fnRef,
|
||||
];
|
||||
let xref = new XRefMock([{
|
||||
ref: fnRef,
|
||||
data: fn,
|
||||
}]);
|
||||
let res = new Dict();
|
||||
|
||||
let colorSpace = ColorSpace.parse(cs, xref, res);
|
||||
|
||||
let testSrc = new Uint8Array([27, 25, 50, 31]);
|
||||
let testDest = new Uint8Array(3 * 3 * 3);
|
||||
let expectedDest = new Uint8Array([
|
||||
227, 243, 242,
|
||||
227, 243, 242,
|
||||
228, 243, 242,
|
||||
227, 243, 242,
|
||||
227, 243, 242,
|
||||
228, 243, 242,
|
||||
203, 233, 229,
|
||||
203, 233, 229,
|
||||
222, 241, 239
|
||||
]);
|
||||
colorSpace.fillRgb(testDest, 2, 2, 3, 3, 3, 8, testSrc, 0);
|
||||
|
||||
expect(colorSpace.getRgb([0.1], 0))
|
||||
.toEqual(new Uint8Array([228, 243, 241]));
|
||||
expect(colorSpace.isPassthrough(8)).toBeFalsy();
|
||||
expect(colorSpace.isDefaultDecode([0, 1])).toBeTruthy();
|
||||
expect(testDest).toEqual(expectedDest);
|
||||
});
|
||||
});
|
||||
});
|
||||
@ -48,6 +48,7 @@ function initializePDFJS(callback) {
|
||||
'pdfjs-test/unit/bidi_spec',
|
||||
'pdfjs-test/unit/cff_parser_spec',
|
||||
'pdfjs-test/unit/cmap_spec',
|
||||
'pdfjs-test/unit/colorspace_spec',
|
||||
'pdfjs-test/unit/crypto_spec',
|
||||
'pdfjs-test/unit/custom_spec',
|
||||
'pdfjs-test/unit/display_svg_spec',
|
||||
|
||||
Loading…
Reference in New Issue
Block a user