protected function setUp()
{
$this->csEmptyTable = new SymbolTable([], SymbolTable::CS);
$this->icEmptyTable = new SymbolTable([], SymbolTable::IC);
$this->csFilledTable = new SymbolTable($this->fillData, SymbolTable::CS);
$this->icFilledTable = new SymbolTable($this->fillData, SymbolTable::IC);
}