public function test_getColumn_shouldPassRowToCallable()
{
$callbackRow = null;
$this->row->addColumn('testClosure', function (Row $row) use(&$callbackRow) {
$callbackRow = $row;
return $row;
});
$returnedRow = $this->row->getColumn('testClosure');
$this->assertNotEmpty($callbackRow);
$this->assertSame($returnedRow, $callbackRow);
}