ReaderBench.php

<?php
 
/**
 * League.Csv (https://csv.thephpleague.com)
 *
 * (c) Ignace Nyamagana Butera <nyamsprod@gmail.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
 
declare(strict_types=1);
 
namespace League\Csv;
 
use PhpBench\Attributes as Bench;
use SplFileObject;
 
use function assert;
 
final class ReaderBench
{
 #[Bench\OutputTimeUnit('seconds')]
 #[Bench\Assert('mode(variant.mem.peak) < 2097152'), Bench\Assert('mode(variant.time.avg) < 10000000')]
 public function benchReading1MRowsCSVUsingSplFileObject(): void
 {
 $path = dirname(__DIR__).'/test_files/csv_with_one_million_rows.csv';
 
 $numReadRows = 0;
 foreach (Reader::from(new SplFileObject($path)) as $__) {
 ++$numReadRows;
 }
 
 assert(1_000_000 === $numReadRows);
 }
 
 #[Bench\OutputTimeUnit('seconds')]
 #[Bench\Assert('mode(variant.mem.peak) < 2097152'), Bench\Assert('mode(variant.time.avg) < 10000000')]
 public function benchReading1MRowsCSVUsingStream(): void
 {
 $path = dirname(__DIR__).'/test_files/csv_with_one_million_rows.csv';
 
 $numReadRows = 0;
 foreach (Reader::from($path) as $__) {
 ++$numReadRows;
 }
 
 assert(1_000_000 === $numReadRows);
 }
}