/**
  * @dataProvider provideTokenize
  */
 public function testTokenize($expected, $expectedProcess, $process, $toProcess, $allowsSymbolsBeforeOpen = true, $open = '(', $close = ')')
 {
     $symbol = new NestedSymbol($open, $close, null, false, $allowsSymbolsBeforeOpen);
     $result = $symbol->tokenize($process, $toProcess);
     $this->assertEquals($expected, $result);
     $this->assertEquals($expectedProcess, $process);
 }