      });
          });

          table.querySelector('data-table-checkbox[header]').click();
        });
      });

      describe('using two-way binding', function() {
        it('should update [[selected]] on template instances with the same item', function() {
          input.value = 'foo';

          expect(first.children[0].innerHTML).to.eql('true');
          expect(second.children[0].innerHTML).to.eql('true');
        });

        it('should update selectedItem(s)', function() {
          input.val