Data::TableReader::Decoder::Mock3pm

    decoder => {
      CLASS => 'Mock',
      datasets => [
        [ # Data Set 0
           [ 1, 2, 3, 4, 5 ],
           ...
        ],
        [ # Data Set 1
           [ 1, 2, 3, 4, 5 ],
           ...
        ],
      ]
    }

or

    decoder => {
      CLASS => 'Mock',
      table => [
         [ 1, 2, 3, 4, 5 ],
         ...
      ],
    }

This doesn't actually decode anything; it just returns verbatim rows of data from arrayrefs that you supply. You can provide one or multiple tables. The 'table' constructor parameter is an alias for "datasets[0]".