text: 
  var MOCK_CONFIG = {
    columns: [
      {
        css: {
          header: ['header-0'],
          cell: ['col-0']
        },
        field: 'name',
        title: 'Name'
      },
      {
        css: {
          header: ['header-2'],
          cell: ['col-2']
        },
        field: 'telephone',
        isSortable: true,
        title: 'Phone'
      },
      {
        css: {
          header: ['header-3'],
          cell: ['col-3']
        },
        field: 'zip',
        title: 'Zip'
      }
    ]
  };
  
  var MOCK_CONFIG_GROUPED_HEADER = {
    columns: [
      {
        css: {
          header: ['header-0'],
          cell: ['col-0']
        },
        field: 'id',
        title: 'Id'
      },
      {
        css: {
          header: ['header-1'],
          cell: ['col-1']
        },
        field: 'name',
        title: 'Name'
      },
      {
        css: {
          header: ['header-2'],
          cell: ['col-2']
        },
        title: 'Personal Info',
        columns: [
          {
            css: {
              header: ['header-3'],
              cell: ['col-3']
            },
            field: 'telephone',
            isSortable: true,
            title: 'Phone'
          },
          {
            css: {
              header: ['header-4'],
              cell: ['col-4']
            },
            field: 'zip',
            title: 'Zip'
          }]
      }]
  };