, 0);
              done();
            }, 5);
          });

          test('Check visibility', function (done) {
            alert.visible = true;

            setTimeout(function () {
              var el = alert.$$('.alert');
              assert.equal(
                getComputedStyle(el).display,
                'block',
                'Alert is visible'
              );
              assert.equal(getComputedStyle(el).opacity, 1);
              done();
            }, 5);
          });

          test