Mercurial > hg > nginx-tests
view stream_limit_rate2.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 | 5ac6efbe5552 |
children |
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#!/usr/bin/perl # (C) Andrey Zelenkov # (C) Nginx, Inc. # Tests for stream proxy module, limit rate directives, variables support. ############################################################################### use warnings; use strict; use Test::More; use IO::Select; BEGIN { use FindBin; chdir($FindBin::Bin); } use lib 'lib'; use Test::Nginx; use Test::Nginx::Stream qw/ stream /; ############################################################################### select STDERR; $| = 1; select STDOUT; $| = 1; my $t = Test::Nginx->new()->has(qw/stream stream_map/) ->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } stream { %%TEST_GLOBALS_STREAM%% # download and upload rates are set equal to the maximum # number of bytes transmitted # proxy_download_rate value comes from following calculations: # test string length (1000) + whitespace (1) + time string length (10) map $server_port $down { default 1011; %%PORT_8082%% 0; %%PORT_8083%% 1; %%PORT_8085%% 250; } map $server_port $up { default 1000; %%PORT_8082%% 0; %%PORT_8084%% 1; %%PORT_8086%% 250; } proxy_download_rate $down; proxy_upload_rate $up; server { listen 127.0.0.1:8081; proxy_pass 127.0.0.1:8080; } server { listen 127.0.0.1:8082; proxy_pass 127.0.0.1:8080; proxy_download_rate $down; proxy_upload_rate $up; } server { listen 127.0.0.1:8083; proxy_pass 127.0.0.1:8080; proxy_download_rate $down; } server { listen 127.0.0.1:8084; proxy_pass 127.0.0.1:8080; proxy_upload_rate $up; } server { listen 127.0.0.1:8085; proxy_pass 127.0.0.1:8080; proxy_download_rate $down; } server { listen 127.0.0.1:8086; proxy_pass 127.0.0.1:8087; proxy_upload_rate $up; } } EOF $t->run_daemon(\&stream_daemon, port(8080)); $t->run_daemon(\&stream_daemon, port(8087)); $t->run()->plan(9); $t->waitforsocket('127.0.0.1:' . port(8080)); $t->waitforsocket('127.0.0.1:' . port(8087)); ############################################################################### my $str = '1234567890' x 100; my %r = response($str, peer => '127.0.0.1:' . port(8081)); is($r{'data'}, $str, 'exact limit'); %r = response($str . 'extra', peer => '127.0.0.1:' . port(8082)); is($r{'data'}, $str . 'extra', 'unlimited'); SKIP: { skip 'unsafe on VM', 3 unless $ENV{TEST_NGINX_UNSAFE}; # if interaction between backend and client is slow then proxy can add extra # bytes to upload/download data %r = response($str . 'extra', peer => '127.0.0.1:' . port(8081)); is($r{'data'}, $str, 'limited'); %r = response($str, peer => '127.0.0.1:' . port(8083), readonce => 1); is($r{'data'}, '1', 'download - one byte'); %r = response($str, peer => '127.0.0.1:' . port(8084)); is($r{'data'}, '1', 'upload - one byte'); } # Five chunks are split with four 1s delays: # the first four chunks are quarters of test string # and the fifth one is some extra data from backend. %r = response($str, peer => '127.0.0.1:' . port(8085)); my $diff = time() - $r{'time'}; cmp_ok($diff, '>=', 4, 'download - time'); is($r{'data'}, $str, 'download - data'); my $time = time(); %r = response($str . 'close', peer => '127.0.0.1:' . port(8086)); $diff = time() - $time; cmp_ok($diff, '>=', 4, 'upload - time'); is($r{'data'}, $str . 'close', 'upload - data'); ############################################################################### sub response { my ($data, %extra) = @_; my $s = stream($extra{peer}); $s->write($data); $data = ''; while (1) { my $buf = $s->read(); last unless length($buf); $data .= $buf; last if $extra{'readonce'}; } $data =~ /([\S]*)\s?(\d+)?/; return ('data' => $1, 'time' => $2) } ############################################################################### sub stream_daemon { my $port = shift; my $server = IO::Socket::INET->new( Proto => 'tcp', LocalAddr => '127.0.0.1', LocalPort => $port, Listen => 5, Reuse => 1 ) or die "Can't create listening socket: $!\n"; my $sel = IO::Select->new($server); local $SIG{PIPE} = 'IGNORE'; while (my @ready = $sel->can_read) { foreach my $fh (@ready) { if ($server == $fh) { my $new = $fh->accept; $new->autoflush(1); $sel->add($new); } elsif (stream_handle_client($fh)) { $sel->remove($fh); $fh->close; } } } } sub stream_handle_client { my ($client) = @_; log2c("(new connection $client)"); $client->sysread(my $buffer, 65536) or return 1; log2i("$client $buffer"); $buffer .= " " . time() if $client->sockport() eq port(8080); log2o("$client $buffer"); $client->syswrite($buffer); return $client->sockport() eq port(8080) ? 1 : $buffer =~ /close/; } sub log2i { Test::Nginx::log_core('|| <<', @_); } sub log2o { Test::Nginx::log_core('|| >>', @_); } sub log2c { Test::Nginx::log_core('||', @_); } ###############################################################################