view subrequest_output_buffer_size.t @ 1983:c7315caf2110

Tests: optimized processing of large QUIC packets with padding. Path MTU discovery packets might contain a lot of padding, and creating a copy of the whole buffer for each PADDING frame, which is just one byte with type 0, consumes lots of resources. This was seen to result in flapping of at least h3_keepalive.t and h3_ssl_early_data.t tests. Fix is to copy at most 8 bytes for parse_int() calls when parsing frame types.
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 03 Jun 2024 04:17:28 +0300
parents 97c8280de681
children
line wrap: on
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#!/usr/bin/perl

# (C) Sergey Kandaurov
# (C) Nginx, Inc.

# Tests for subrequest_output_buffer_size directive.

###############################################################################

use warnings;
use strict;

use Test::More;

BEGIN { use FindBin; chdir($FindBin::Bin); }

use lib 'lib';
use Test::Nginx;

###############################################################################

select STDERR; $| = 1;
select STDOUT; $| = 1;

my $t = Test::Nginx->new()->has(qw/http proxy ssi/)->plan(4)
	->write_file_expand('nginx.conf', <<'EOF');

%%TEST_GLOBALS%%

daemon off;

events {
}

http {
    %%TEST_GLOBALS_HTTP%%

    server {
        listen       127.0.0.1:8080;
        server_name  localhost;

        location / {
            proxy_pass http://127.0.0.1:8081;
            subrequest_output_buffer_size 42;
        }

        location /longok {
            proxy_pass http://127.0.0.1:8081/long;
        }

        location /ssi {
            ssi on;
        }
    }

    server {
        listen       127.0.0.1:8081;
        server_name  localhost;

        location / { }
    }
}

EOF

$t->write_file('ssi.html',
	'<!--#include virtual="/$arg_c" set="x" -->' .
	'set: <!--#echo var="x" -->');

$t->write_file('length', 'TEST-OK-IF-YOU-SEE-THIS');
$t->write_file('long', 'x' x 400);
$t->write_file('empty', '');

$t->run();

###############################################################################

my ($r, $n);

like(http_get('/ssi.html?c=length'), qr/SEE-THIS/, 'request');
like(http_get('/ssi.html?c=empty'), qr/set: $/, 'empty');
unlike(http_get('/ssi.html?c=long'), qr/200 OK/, 'long');
like(http_get('/ssi.html?c=longok'), qr/x{400}/, 'long ok');

###############################################################################