PrivateBin/tst/Persistence/TrafficLimiterTest.php

<?php

use PHPUnit\Framework\TestCase;
use PrivateBin\Persistence\TrafficLimiter;

class TrafficLimiterTest extends TestCase
{
    private $_path;

    public function setUp(): void
    {
        /* Setup Routine */
        $this->_path = sys_get_temp_dir() . DIRECTORY_SEPARATOR . 'trafficlimit';
        TrafficLimiter::setPath($this->_path);
    }

    public function tearDown(): void
    {
        /* Tear Down Routine */
        Helper::rmDir($this->_path . DIRECTORY_SEPARATOR);
    }

    public function testTrafficGetsLimited()
    {
        $this->assertEquals($this->_path, TrafficLimiter::getPath());
        $file = 'baz';
        $this->assertEquals($this->_path . DIRECTORY_SEPARATOR . $file, TrafficLimiter::getPath($file));
        TrafficLimiter::setLimit(4);
        $_SERVER['REMOTE_ADDR'] = '127.0.0.1';
        $this->assertTrue(TrafficLimiter::canPass(), 'first request may pass');
        sleep(1);
        $this->assertFalse(TrafficLimiter::canPass(), 'second request is to fast, may not pass');
        sleep(4);
        $this->assertTrue(TrafficLimiter::canPass(), 'third request waited long enough and may pass');
        $_SERVER['REMOTE_ADDR'] = '2001:1620:2057:dead:beef::cafe:babe';
        $this->assertTrue(TrafficLimiter::canPass(), 'fourth request has different ip and may pass');
        $_SERVER['REMOTE_ADDR'] = '127.0.0.1';
        $this->assertFalse(TrafficLimiter::canPass(), 'fifth request is to fast, may not pass');
    }
}