view proxy_cache_lock.t @ 1982:fb25cbe9d4ec default tip

Tests: explicit Valgrind support. Valgrind logging is done to a separate file, as it is not able to follow stderr redirection within nginx or append to a file without corrupting it. Further, Valgrind logging seems to interfere with error suppression in tests, and catches various startup errors and warnings, so the log is additionally filtered. Since startup under Valgrind can be really slow, timeout in waitforfile() was changed to 10 seconds. Prodded by Robert Mueller.
author Maxim Dounin <mdounin@mdounin.ru>
date Fri, 31 May 2024 06:23:00 +0300
parents ebdf239722b9
children
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#!/usr/bin/perl

# (C) Maxim Dounin

# Tests for http proxy cache lock.

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

use warnings;
use strict;

use Test::More;

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

use lib 'lib';
use Test::Nginx qw/ :DEFAULT http_end /;

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

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

my $t = Test::Nginx->new()->has(qw/http proxy cache/)->plan(17)
	->write_file_expand('nginx.conf', <<'EOF');

%%TEST_GLOBALS%%

daemon off;

events {
}

http {
    %%TEST_GLOBALS_HTTP%%

    proxy_cache_path   %%TESTDIR%%/cache  levels=1:2
                       keys_zone=NAME:1m;

    server {
        listen       127.0.0.1:8080;
        server_name  localhost;

        location / {
            proxy_pass    http://127.0.0.1:8081;
            proxy_cache   NAME;

            proxy_cache_lock on;
        }

        location /timeout {
            proxy_pass    http://127.0.0.1:8081;
            proxy_cache   NAME;

            proxy_cache_lock on;
            proxy_cache_lock_timeout 200ms;
        }

        location /nolock {
            proxy_pass    http://127.0.0.1:8081;
            proxy_cache   NAME;
        }
    }
}

EOF

$t->run_daemon(\&http_fake_daemon);

$t->run();

$t->waitforsocket('127.0.0.1:' . port(8081));

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

# sequential requests

for my $i (1 .. 5) {
	like(http_get('/seq'), qr/request 1/, 'sequential request ' . $i);
}

# parallel requests

my @sockets;

for my $i (1 .. 5) {
	$sockets[$i] = http_get('/par1', start => 1);
}

for my $i (1 .. 5) {
	like(http_end($sockets[$i]), qr/request 1/, 'parallel request ' . $i);
}

like(http_get('/par1'), qr/request 1/, 'first request cached');

# since 1.7.8, parallel requests with cache lock timeout expired are not cached

for my $i (1 .. 3) {
	$sockets[$i] = http_get('/timeout', start => 1);
}

like(http_end($sockets[1]), qr/request 1/, 'lock timeout - first');

my $rest = http_end($sockets[2]);
$rest .= http_end($sockets[3]);

like($rest, qr/request (2.*request 3|3.*request 2)/s, 'lock timeout - rest');
like(http_get('/timeout'), qr/request 1/, 'lock timeout - first only cached');

# no lock

for my $i (1 .. 3) {
	$sockets[$i] = http_get('/nolock', start => 1);
}

$rest = join '', map { http_end($sockets[$_]) } (1 .. 3);

like($rest, qr/request 1/, 'nolock - first');
like($rest, qr/request 3/, 'nolock - last');
like(http_get('/nolock'), qr/request 3/, 'nolock - last cached');

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

sub http_fake_daemon {
	my $server = IO::Socket::INET->new(
		Proto => 'tcp',
		LocalAddr => '127.0.0.1:' . port(8081),
		Listen => 5,
		Reuse => 1
	)
		or die "Can't create listening socket: $!\n";

	my $num = 0;
	my $uri = '';

	while (my $client = $server->accept()) {
		$client->autoflush(1);

		while (<$client>) {
			if (/GET (.*) HTTP/ && $1 ne $uri) {
				$uri = $1;
				$num = 0;
			}

			$uri = $1 if /GET (.*) HTTP/;
			last if /^\x0d?\x0a?$/;
		}

		next unless $uri;

		select(undef, undef, undef, 1.1);

		$num++;
		print $client <<"EOF";
HTTP/1.1 200 OK
Cache-Control: max-age=300
Connection: close

request $num
EOF
	}
}

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