Mercurial > hg > nginx-tests
view stream_limit_rate.t @ 679:b60c1a207675
Tests: fixed HTTP/2 tests with large frames.
Compensate for an already read frame header.
author | Sergey Kandaurov <pluknet@nginx.com> |
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date | Tue, 08 Sep 2015 14:58:56 +0300 |
parents | 443848f28a73 |
children | aed139eaaf3f |
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#!/usr/bin/perl # (C) Andrey Zelenkov # (C) Nginx, Inc. # Tests for stream proxy module, limit rate directives. ############################################################################### use warnings; use strict; use Test::More; use IO::Select; 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/stream/) ->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } 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) proxy_download_rate 1011; proxy_upload_rate 1000; 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 0; proxy_upload_rate 0; } server { listen 127.0.0.1:8083; proxy_pass 127.0.0.1:8080; proxy_download_rate 1; } server { listen 127.0.0.1:8084; proxy_pass 127.0.0.1:8080; proxy_upload_rate 1; } server { listen 127.0.0.1:8085; proxy_pass 127.0.0.1:8080; proxy_download_rate 250; } server { listen 127.0.0.1:8086; proxy_pass 127.0.0.1:8090; proxy_upload_rate 250; } } EOF $t->run_daemon(\&stream_daemon, 8080); $t->run_daemon(\&stream_daemon, 8090); $t->try_run('no proxy_download_rate and/or proxy_upload_rate')->plan(8); $t->waitforsocket('127.0.0.1:8080'); $t->waitforsocket('127.0.0.1:8090'); ############################################################################### my $str = '1234567890' x 100; my %r = stream_get($str, peer => '127.0.0.1:8081'); is($r{'data'}, $str, 'exact limit'); %r = stream_get($str, peer => '127.0.0.1:8082'); is($r{'data'}, $str, 'unlimited'); SKIP: { skip 'unsafe on VM', 2 unless $ENV{TEST_NGINX_UNSAFE}; # if interaction between backend and client is slow then proxy can add extra # bytes to upload/download data %r = stream_get($str, peer => '127.0.0.1:8083', readonce => 1); is($r{'data'}, '1', 'download - one byte'); %r = stream_get($str, peer => '127.0.0.1:8084'); is($r{'data'}, '1', 'upload - one byte'); } # Five chunks are split with four 1s delays + 2s error: # the first two chunks are halfs of test string # and the third one is some extra data from backend. %r = stream_get($str, peer => '127.0.0.1:8085'); my $diff = time() - $r{'time'}; cmp_ok(abs($diff - 4), '<=', 2, 'download - time'); is($r{'data'}, $str, 'download - data'); my $time = time(); %r = stream_get($str . 'close', peer => '127.0.0.1:8086'); $diff = time() - $time; cmp_ok(abs($diff - 4), '<=', 2, 'upload - time'); is($r{'data'}, $str . 'close', 'upload - data'); ############################################################################### sub stream_get { my ($data, %extra) = @_; my $s = stream_connect($extra{'peer'}); stream_write($s, $data); $data = ''; while (my $buf = stream_read($s)) { $data .= $buf; last if $extra{'readonce'}; } $data =~ /([\S]*)\s?(\d+)?/; return ('data' => $1, 'time' => $2); } sub stream_connect { my $peer = shift; my $s = IO::Socket::INET->new( Proto => 'tcp', PeerAddr => $peer ) or die "Can't connect to nginx: $!\n"; return $s; } sub stream_write { my ($s, $message) = @_; local $SIG{PIPE} = 'IGNORE'; $s->blocking(0); while (IO::Select->new($s)->can_write(1.5)) { my $n = $s->syswrite($message); last unless $n; $message = substr($message, $n); last unless length $message; } if (length $message) { $s->close(); } } sub stream_read { my ($s) = @_; my ($buf); $s->blocking(0); if (IO::Select->new($s)->can_read(3)) { $s->sysread($buf, 1024); }; log_in($buf); return $buf; } ############################################################################### 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 $client->sockport() eq 8080; log2o("$client $buffer"); $client->syswrite($buffer); return $client->sockport() eq 8080 ? 1 : $buffer =~ /close/; } sub log2i { Test::Nginx::log_core('|| <<', @_); } sub log2o { Test::Nginx::log_core('|| >>', @_); } sub log2c { Test::Nginx::log_core('||', @_); } ###############################################################################