var assert = require('assert')

module.exports = function (gm, dir, finish, GM) {
  gm.source = __dirname + '/fixtures/compare_1.png';
  var a = gm.montage(__dirname + '/fixtures/favicon.png')

  var args = a.args();
  assert.equal('montage', args[0]);
  assert.equal(__dirname + '/fixtures/favicon.png', args[1]);
  assert.equal(__dirname + '/fixtures/compare_1.png', args[2]);

  if (!GM.integration)
    return finish();

  a 
  .write(dir + '/montage.png', function(err) {
    finish(err);
  });
}