
        MockInteractions.focus(input);
        requestAnimationFrame(function() {
          assert.isTrue(container.focused, 'focused is true');
          assert.isTrue(inputContent.classList.contains('label-is-highlighted'), 'label is highlighted when input has focus');
          done();
        });
      });

      test('label is not colored when input is focused and has null value', function(done) {
        var container = fixture('basic');
        var label = Polymer.dom(container).querySelector('#l');