 });
        });
      });

      test('secondary progress', function(done) {
        slider.max = 10;
        slider.secondaryProgress = 50;
        flush(function() {
          assert.equal(slider.secondaryProgress, slider.max);
          done();
        });
      });

      test('increment', function(done) {
        slider.min = 0;
        slider.max = 10;
        slider.step = 2;
        slider.value = 0;
        slider.increment();

        flush(function() {
          assert.equal(slider.value, slider