Mercurial > hg > nginx-tests
view stream_udp_upstream_hash.t @ 1240:f7eb2875ed45
Tests: avoid interleaved output in Upgrade handling tests.
When the testing script is run in verbose mode by prove that redirects stdout,
a garbled verbose mode line from backend can be produced that incorporates TAP
output of an individual test result, which eventually breaks the testing plan.
Notably, this happens when testing sending multiple frames if backend started
to respond before all frames were received. This is possible due to the line
boundary used as an indicator of last bytes to receive before starting to send.
The fix is to amend the only last frame of many specially, for that purpose.
author | Sergey Kandaurov <pluknet@nginx.com> |
---|---|
date | Wed, 15 Nov 2017 20:16:09 +0300 |
parents | e4974af3fb12 |
children | f3ba4c74de31 |
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#!/usr/bin/perl # (C) Sergey Kandaurov # (C) Nginx, Inc. # Stream tests for upstream hash 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_hash udp/)->plan(2); $t->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } stream { proxy_responses 1; proxy_timeout 1s; upstream hash { hash $remote_addr; server 127.0.0.1:%%PORT_8982_UDP%%; server 127.0.0.1:%%PORT_8983_UDP%%; } upstream cons { hash $remote_addr consistent; server 127.0.0.1:%%PORT_8982_UDP%%; server 127.0.0.1:%%PORT_8983_UDP%%; } server { listen 127.0.0.1:%%PORT_8980_UDP%% udp; proxy_pass hash; } server { listen 127.0.0.1:%%PORT_8981_UDP%% udp; proxy_pass cons; } } EOF $t->run_daemon(\&udp_daemon, port(8982), $t); $t->run_daemon(\&udp_daemon, port(8983), $t); $t->run(); $t->waitforfile($t->testdir . '/' . port(8982)); $t->waitforfile($t->testdir . '/' . port(8983)); ############################################################################### my @ports = my ($port2, $port3) = (port(8982), port(8983)); is(many(10, port(8980)), "$port3: 10", 'hash'); like(many(10, port(8981)), qr/($port2|$port3): 10/, 'hash consistent'); ############################################################################### sub many { my ($count, $port) = @_; my (%ports); for (1 .. $count) { if (dgram("127.0.0.1:$port")->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); $buffer = $server->sockport(); $server->send($buffer); } } ###############################################################################