Mercurial > hg > nginx-tests
view stream_udp_upstream_least_conn.t @ 1905:f35824e75b66
Tests: fixed reading QUIC streams on Perl < 5.24.
The parse_stream() routine has had a missing explicit return if there were no
streams received. In Perl < 5.24 this used to return no value, or an empty
array in the list context. In modern Perl this returns an empty value, or an
array of 1 element, which made the check for last index of the returned array
work rather by accident.
The fix is to return explicitly and to check the array size in callers instead.
author | Sergey Kandaurov <pluknet@nginx.com> |
---|---|
date | Tue, 06 Jun 2023 18:50:07 +0400 |
parents | f3ba4c74de31 |
children |
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#!/usr/bin/perl # (C) Sergey Kandaurov # (C) Nginx, Inc. # Stream tests for upstream least_conn balancer module with datagrams. ############################################################################### use warnings; use strict; use Test::More; BEGIN { use FindBin; chdir($FindBin::Bin); } use lib 'lib'; use Test::Nginx; use Test::Nginx::Stream qw/ dgram /; ############################################################################### select STDERR; $| = 1; select STDOUT; $| = 1; my $t = Test::Nginx->new()->has(qw/stream stream_upstream_least_conn udp/) ->plan(2)->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } stream { %%TEST_GLOBALS_STREAM%% proxy_responses 1; proxy_timeout 1s; upstream u { least_conn; server 127.0.0.1:%%PORT_8981_UDP%%; server 127.0.0.1:%%PORT_8982_UDP%%; } server { listen 127.0.0.1:%%PORT_8980_UDP%% udp; proxy_pass u; } } EOF $t->run_daemon(\&udp_daemon, port(8981), $t); $t->run_daemon(\&udp_daemon, port(8982), $t); $t->run(); $t->waitforfile($t->testdir . '/' . port(8981)); $t->waitforfile($t->testdir . '/' . port(8982)); ############################################################################### my @ports = my ($port1, $port2) = (port(8981), port(8982)); is(many(10), "$port1: 5, $port2: 5", 'balanced'); my @sockets; for (1 .. 2) { my $s = dgram('127.0.0.1:' . port(8980)); $s->write('w'); push @sockets, $s; } select undef, undef, undef, 0.2; is(many(10), "$port2: 10", 'least_conn'); ############################################################################### sub many { my ($count) = @_; my (%ports); for (1 .. $count) { if (dgram('127.0.0.1:' . port(8980))->io('.') =~ /(\d+)/) { $ports{$1} = 0 unless defined $ports{$1}; $ports{$1}++; } } my @keys = map { my $p = $_; grep { $p == $_ } keys %ports } @ports; return join ', ', map { $_ . ": " . $ports{$_} } @keys; } ############################################################################### sub udp_daemon { my ($port, $t) = @_; my $server = IO::Socket::INET->new( Proto => 'udp', LocalAddr => '127.0.0.1:' . $port, Reuse => 1, ) or die "Can't create listening socket: $!\n"; # signal we are ready open my $fh, '>', $t->testdir() . '/' . $port; close $fh; while (1) { $server->recv(my $buffer, 65536); my $port = $server->sockport(); if ($buffer =~ /w/ && $port == port(8981)) { select undef, undef, undef, 2.5; } $buffer = $port; $server->send($buffer); } } ###############################################################################