mirror of https://gitgud.io/fatchan/gm
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
41 lines
1.3 KiB
41 lines
1.3 KiB
var assert = require('assert');
|
|
var fs = require('fs');
|
|
|
|
module.exports = function (gm, dir, finish, GM) {
|
|
// Same image
|
|
GM.compare(dir + '/original.jpg', dir + '/original.png', function(err, same) {
|
|
if (err) return finish(err);
|
|
if (!same) return finish(new Error('Compare should be the same!'));
|
|
|
|
// Compare almost similar images for which ImageMagick
|
|
// returns a exponent-style floating point number
|
|
gm.compare(__dirname + '/fixtures/compare_1.png', __dirname + '/fixtures/compare_2.png', function(err, same, diff) {
|
|
if (err) return finish(err);
|
|
|
|
// Create a new noisy image
|
|
gm.noise(0.3).write(dir + '/noise3.png', function (err) {
|
|
if (err) return finish(err);
|
|
if (!same) return finish(new Error('Compare should be the same!'));
|
|
|
|
var options = {
|
|
highlightColor: '#fff',
|
|
highlightStyle: 'XOR',
|
|
file: dir + '/diff.png',
|
|
tolerance: 0.001
|
|
};
|
|
|
|
// Compare these images and write to a file.
|
|
GM.compare(dir + '/original.jpg', dir + '/noise3.png', options, function(err) {
|
|
if (err) return finish(err);
|
|
|
|
fs.exists(options.file, function(exists) {
|
|
if (exists) {
|
|
fs.unlink(options.file, finish);
|
|
}
|
|
else finish(new Error('Diff file does not exist.'));
|
|
});
|
|
});
|
|
});
|
|
});
|
|
});
|
|
};
|
|
|