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('Physical Dimensions', function () {

    describe('8x32 flat pixels', function () {

        testGen.addDecodeTests({
            resourceGroup: ['ancillary', 'physical'],
            resourceFile: 'cdfn2c08',
            imageCheck: true,

            chunkTypes: ['gAMA', 'pHYs', 'zzZz'],

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

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

        it('should have unit', function () {
            expect(this.data.physicalSize.unit).to.be.equal(0);
        });

        it('should have extend', function () {
            expect(this.data.physicalSize.xPixelPerUnit).to.be.equal(1);
            expect(this.data.physicalSize.yPixelPerUnit).to.be.equal(4);
        });
    });

    describe('32x8 high pixels', function () {

        testGen.addDecodeTests({
            resourceGroup: ['ancillary', 'physical'],
            resourceFile: 'cdhn2c08',
            imageCheck: true,

            chunkTypes: ['gAMA', 'pHYs', 'zzZz'],

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

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

        it('should have unit', function () {
            expect(this.data.physicalSize.unit).to.be.equal(0);
        });

        it('should have extend', function () {
            expect(this.data.physicalSize.xPixelPerUnit).to.be.equal(4);
            expect(this.data.physicalSize.yPixelPerUnit).to.be.equal(1);
        });
    });

    describe('8x8 square pixels', function () {

        testGen.addDecodeTests({
            resourceGroup: ['ancillary', 'physical'],
            resourceFile: 'cdsn2c08',
            imageCheck: true,

            chunkTypes: ['gAMA', 'pHYs', 'zzZz'],

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

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

        it('should have unit', function () {
            expect(this.data.physicalSize.unit).to.be.equal(0);
        });

        it('should have extend', function () {
            expect(this.data.physicalSize.xPixelPerUnit).to.be.equal(1);
            expect(this.data.physicalSize.yPixelPerUnit).to.be.equal(1);
        });
    });

    describe('1000 pixels per meter', function () {

        testGen.addDecodeTests({
            resourceGroup: ['ancillary', 'physical'],
            resourceFile: 'cdun2c08',
            imageCheck: true,

            chunkTypes: ['gAMA', 'pHYs', 'zzZz'],

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

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

        it('should have unit', function () {
            expect(this.data.physicalSize.unit).to.be.equal(1);
        });

        it('should have extend', function () {
            expect(this.data.physicalSize.xPixelPerUnit).to.be.equal(1000);
            expect(this.data.physicalSize.yPixelPerUnit).to.be.equal(1000);
        });
    });
});