yahoo/pngjs-image

// Copyright 2015 Yahoo! Inc.
// Copyrights licensed under the Mit License. See the accompanying LICENSE file for terms.

var testGen = require('../../testGen');
var expect = require('chai').expect;

describe('Chroma', function () {

    describe('True-Color', function () {

        testGen.addDecodeTests({
            resourceGroup: ['ancillary', 'chroma'],
            resourceFile: 'ccwn2c08',
            imageCheck: true,

            chunkTypes: ['gAMA', 'cHRM'],

            headerCheck: true,
            width: 32,
            height: 32,
            bitDepth: 8,
            colorType: 2,
            filter: 0,
            compression: 0,
            interlace: 0
        });

        it('should have volatile data', function () {
            expect(this.data.volatile).to.be.not.undefined;
        });

        it('should have white-point', function () {
            expect(this.data.volatile.chromaticities.whitePointX).to.be.equal(0.3127);
            expect(this.data.volatile.chromaticities.whitePointY).to.be.equal(0.3290);
        });

        it('should have red', function () {
            expect(this.data.volatile.chromaticities.redX).to.be.equal(0.64);
            expect(this.data.volatile.chromaticities.redY).to.be.equal(0.33);
        });

        it('should have green', function () {
            expect(this.data.volatile.chromaticities.greenX).to.be.equal(0.30);
            expect(this.data.volatile.chromaticities.greenY).to.be.equal(0.60);
        });

        it('should have blue', function () {
            expect(this.data.volatile.chromaticities.blueX).to.be.equal(0.15);
            expect(this.data.volatile.chromaticities.blueY).to.be.equal(0.06);
        });
    });

    describe('Indexed-Color', function () {

        testGen.addDecodeTests({
            resourceGroup: ['ancillary', 'chroma'],
            resourceFile: 'ccwn3p08',
            imageCheck: true,

            chunkTypes: ['gAMA', 'cHRM'],

            headerCheck: true,
            width: 32,
            height: 32,
            bitDepth: 8,
            colorType: 3,
            filter: 0,
            compression: 0,
            interlace: 0
        });

        it('should have volatile data', function () {
            expect(this.data.volatile).to.be.not.undefined;
        });

        it('should have white-point', function () {
            expect(this.data.volatile.chromaticities.whitePointX).to.be.equal(0.3127);
            expect(this.data.volatile.chromaticities.whitePointY).to.be.equal(0.3290);
        });

        it('should have red', function () {
            expect(this.data.volatile.chromaticities.redX).to.be.equal(0.64);
            expect(this.data.volatile.chromaticities.redY).to.be.equal(0.33);
        });

        it('should have green', function () {
            expect(this.data.volatile.chromaticities.greenX).to.be.equal(0.30);
            expect(this.data.volatile.chromaticities.greenY).to.be.equal(0.60);
        });

        it('should have blue', function () {
            expect(this.data.volatile.chromaticities.blueX).to.be.equal(0.15);
            expect(this.data.volatile.chromaticities.blueY).to.be.equal(0.06);
        });
    });
});