view proxy_limit_rate.t @ 1825:3629eda94c1b

Tests: handling of EWOULDBLOCK from sysread() with IO::Socket::SSL. With IO::Socket::SSL, when select() reports that the socket is readable, reading from it might still fail with EWOULDBLOCK, since no application data is available in the socket. In particular, this might happen with TLSv1.3 when a session ticket is received after the handshake. Fix is to explicitly check for EWOULDBLOCK errors.
author Maxim Dounin <mdounin@mdounin.ru>
date Tue, 21 Mar 2023 02:57:39 +0300
parents 06fbbf1706bd
children
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#!/usr/bin/perl

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

# Tests for the proxy_limit_rate 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 upstream_keepalive/)->plan(4);

$t->write_file_expand('nginx.conf', <<'EOF');

%%TEST_GLOBALS%%

daemon off;

events {
}

http {
    %%TEST_GLOBALS_HTTP%%

    upstream u {
        server 127.0.0.1:8080;
        keepalive 1;
    }

    server {
        listen       127.0.0.1:8080;
        server_name  localhost;

        location / {
            proxy_pass http://127.0.0.1:8080/data;
            proxy_buffer_size 4k;
            proxy_limit_rate 20000;
            add_header X-Msec $msec;
        }

        location /keepalive {
            proxy_http_version 1.1;
            proxy_set_header Connection "";
            proxy_pass http://u/data;
            proxy_buffer_size 4k;
            proxy_limit_rate 20000;
            add_header X-Msec $msec;
        }

        location /data {
        }
    }
}

EOF

$t->write_file('data', 'X' x 40000);
$t->run();

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

my $r = http_get('/');

my ($t1) = $r =~ /X-Msec: (\d+)/;
my $diff = time() - $t1;

# four chunks are split with three 1s delays

cmp_ok($diff, '>=', 1, 'proxy_limit_rate');
like($r, qr/^(XXXXXXXXXX){4000}\x0d?\x0a?$/m, 'response body');

# in case keepalive connection was saved with the delayed flag,
# the read timer used to be a delay timer in the next request

like(http_get('/keepalive'), qr/200 OK/, 'keepalive');
like(http_get('/keepalive'), qr/200 OK/, 'keepalive 2');

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