view empty_gif.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 c544b7120a6d
children
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#!/usr/bin/perl

# (C) Sergey Kandaurov

# Tests for empty gif module.

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

use warnings;
use strict;

use Test::More;

use Socket qw/ CRLF /;

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 empty_gif/)->plan(4);

$t->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 / {
            empty_gif;
        }
    }
}

EOF

$t->run();

my $gif = unhex(<<'EOF');
0x0000:  47 49 46 38 39 61 01 00  01 00 80 01 00 00 00 00  |GIF89a.. ........|
0x0010:  ff ff ff 21 f9 04 01 00  00 01 00 2c 00 00 00 00  |...!.... ...,....|
0x0020:  01 00 01 00 00 02 02 4c  01 00 3b                 |.......L ..;|
EOF

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

is(http_get_body('/'), $gif, 'empty gif');
like(http_get('/'), qr!Content-Type: image/gif!i, 'get content type');
like(http_head('/'), qr!Content-Type: image/gif!i, 'head content type');
like(http('PUT / HTTP/1.0' . CRLF . CRLF), qr! 405 !i, 'put');

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

sub unhex {
	my ($input) = @_;
	my $buffer = '';

	for my $l ($input =~ m/:  +((?:[0-9a-f]{2,4} +)+) /gms) {
		for my $v ($l =~ m/[0-9a-f]{2}/g) {
			$buffer .= chr(hex($v));
		}
	}

	return $buffer;
}

sub http_get_body {
	my ($uri) = @_;

	return undef if !defined $uri;

	my $text = http_get($uri);

	if ($text !~ /(.*?)\x0d\x0a?\x0d\x0a?(.*)/ms) {
		return undef;
	}

	return $2;
}

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