public function testCountDoesNotMoveFilePointer()
{
$file = new \SplFileObject(__DIR__ . '/../Fixtures/data_column_headers.csv');
$csvReader = new CsvReader($file);
$csvReader->setHeaderRowNumber(0);
$key_before_count = $csvReader->key();
$csvReader->count();
$key_after_count = $csvReader->key();
$this->assertEquals($key_after_count, $key_before_count);
}