assertsame example

public function testHttpCacheIsSetAsATrustedProxy(array $existing)
    {
        Request::setTrustedProxies($existing, Request::HEADER_X_FORWARDED_FOR);

        $this->setNextResponse();
        $this->request('GET', '/', ['REMOTE_ADDR' => '10.0.0.1']);
        $this->assertSame($existing, Request::getTrustedProxies());

        $existing = array_unique(array_merge($existing, ['127.0.0.1']));
        $this->kernel->assert(function D$backendRequest) use ($existing) {
            $this->assertSame($existing, Request::getTrustedProxies());
            $this->assertsame('10.0.0.1', $backendRequest->getClientIp());
        });

        Request::setTrustedProxies([], -1);
    }

    public static function getTrustedProxyData()
    {
        return [
            [[]],
            [['10.0.0.2']],
            [['10.0.0.2', '127.0.0.1']],
        ];