yahoo/pngjs-image

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

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

describe('Filter', function () {

    describe('No Filter', function () {

        describe('GrayScale', function () {

            testGen.addDecodeTests({
                resourceGroup: 'filter',
                resourceFile: 'f00n0g08', // grayscale, no interlacing
                imageCheck: true,

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

        describe('Color', function () {

            testGen.addDecodeTests({
                resourceGroup: 'filter',
                resourceFile: 'f00n2c08', // color, no interlacing
                imageCheck: true,

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

    describe('Sub Filter', function () {

        describe('GrayScale', function () {

            testGen.addDecodeTests({
                resourceGroup: 'filter',
                resourceFile: 'f01n0g08', // grayscale, no interlacing
                imageCheck: true,

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

        describe('Color', function () {

            testGen.addDecodeTests({
                resourceGroup: 'filter',
                resourceFile: 'f01n2c08', // color, no interlacing
                imageCheck: true,

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

    describe('Up Filter', function () {

        describe('GrayScale', function () {

            testGen.addDecodeTests({
                resourceGroup: 'filter',
                resourceFile: 'f02n0g08', // grayscale, no interlacing
                imageCheck: true,

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

        describe('Color', function () {

            testGen.addDecodeTests({
                resourceGroup: 'filter',
                resourceFile: 'f02n2c08', // color, no interlacing
                imageCheck: true,

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

    describe('Average Filter', function () {

        describe('GrayScale', function () {

            testGen.addDecodeTests({
                resourceGroup: 'filter',
                resourceFile: 'f03n0g08', // grayscale, no interlacing
                imageCheck: true,

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

        describe('Color', function () {

            testGen.addDecodeTests({
                resourceGroup: 'filter',
                resourceFile: 'f03n2c08', // color, no interlacing
                imageCheck: true,

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

    describe('Paeth Filter', function () {

        describe('GrayScale', function () {

            testGen.addDecodeTests({
                resourceGroup: 'filter',
                resourceFile: 'f04n0g08', // grayscale, no interlacing
                imageCheck: true,

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

        describe('Color', function () {

            testGen.addDecodeTests({
                resourceGroup: 'filter',
                resourceFile: 'f04n2c08', // color, no interlacing
                imageCheck: true,

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

    describe('All Filters', function () {

        testGen.addDecodeTests({
            resourceGroup: 'filter',
            resourceFile: 'f99n0g04', // bit-depth 4, filter changing per scanline
            imageCheck: true,

            headerCheck: true,
            width: 32,
            height: 32,
            filter: 0,
            colorType: 0,
            bitDepth: 4
        });
    });
});