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|
#!/usr/bin/env perl
use strict;
use warnings;
use YAHC;
use POSIX;
use FindBin;
use HTTP::Tiny;
use Test::More;
use Data::Dumper;
use JSON qw/decode_json/;
use Time::HiRes qw/time sleep nanosleep/;
use List::Util qw/shuffle/;
use lib "$FindBin::Bin/..";
use t::Utils;
unless ($ENV{TEST_ROBUST}) {
plan skip_all => "Enable robust testing by setting env: TEST_ROBUST=1";
}
unless (YAHC::SSL) {
plan skip_all => 'IO::Socket::SSL 1.94+ required for this test!'
}
unless (t::Utils::_check_toxyproxy_and_reset()) {
plan skip_all => 'Toxyproxy is not responsive, use $ENV{TOXYPROXY} to specify its address';
}
my $len = 50;
my $nrequests = 16;
note("generating $nrequests requests structures");
my @requests = map {
$len *= 2;
{
path => '/record',
body => t::Utils::_generate_sequence(int($len / 2) + int(rand($len))),
ssl_options => {
SSL_cert_file => t::Utils::SSL_CRT,
SSL_key_file => t::Utils::SSL_KEY,
SSL_verify_mode => 0, # SSL_VERIFY_NONE
},
}
} (1..$nrequests);
# [ $latency_ms, jitter_ms ]
# final latency = $latency +- rand($jitter)
my @latencies = ([10, 5], [50, 20], [100, 50], [500, 250]);
push @latencies, ([1000, 500], [10000, 5000]) if $ENV{TEST_ROBUST_LONG};
foreach my $proto ('http', 'https') {
my $ssl = $proto eq 'https' ? 1 : 0;
my ($spid, $chost, $cport) = t::Utils::_start_plack_server_on_random_port({ ssl => $ssl });
my $caddr = "${chost}:${cport}";
foreach my $settings (@latencies) {
my ($latency, $jitter) = @{ $settings };
subtest "robustness of $proto in case of latency $latency ms" => sub {
my $addr = t::Utils::new_toxic(
"yahc_robust_${proto}_latency_${latency}_jitter_${jitter}",
$caddr,
{
type => 'latency',
attributes => {
latency => int($latency),
jitter => int($jitter),
},
},
);
_do_requests_and_verify($addr, $ssl, @requests);
}
}
note("killing web server $spid");
delete t::Utils::_pids->{$spid};
kill 'KILL', $spid;
}
# rate in kilobytes per second
my @rates = (100000, 10000, 1000);
push @rates, 100 if $ENV{TEST_ROBUST_LONG};
foreach my $proto ('http', 'https') {
my $ssl = $proto eq 'https' ? 1 : 0;
my ($spid, $chost, $cport) = t::Utils::_start_plack_server_on_random_port({ ssl => $ssl });
my $caddr = "${chost}:${cport}";
foreach my $rate (@rates) {
subtest "robustness of $proto in case of $rate kilobytes per second bandwidth" => sub {
my $addr = t::Utils::new_toxic(
"yahc_robust_${proto}_bandwidth_${rate}",
$caddr,
{
type => 'bandwidth',
attributes => { rate => int($rate) },
},
);
_do_requests_and_verify($addr, $ssl, @requests);
}
}
note("killing web server $spid");
delete t::Utils::_pids->{$spid};
kill 'KILL', $spid;
}
my @signal_requests = shuffle (@requests, @requests, @requests,
@requests, @requests, @requests,
@requests, @requests, @requests);
my $nsignal_requests = scalar @signal_requests;
foreach my $proto ('http', 'https') {
my $ssl = $proto eq 'https' ? 1 : 0;
my ($spid, $chost, $cport) = t::Utils::_start_plack_server_on_random_port({ ssl => $ssl });
my $caddr = "${chost}:${cport}";
subtest "robustness of $proto in case of storm of signals" => sub {
pipe(my $rh, my $wh) or die "failed to pipe: $!";
my $ht = t::Utils::_get_http_tiny();
ok($ht->get("$proto://$caddr/reset")->{success}, "reset server counters")
or return;
my $pid = t::Utils::_fork(sub {
my $sigcnt = 0;
local $SIG{HUP} = 'IGNORE';
local $SIG{USR1} = sub { $sigcnt++ };
local $SIG{USR2} = sub { $sigcnt++ };
my ($yahc, $yahc_storage) = YAHC->new({ account_for_signals => 1 });
syswrite($wh, '1', 1);
close($wh); # signal parent process
close($rh);
note("$$ client process start sending requests to $proto://$caddr");
foreach my $request (@signal_requests) {
my $c = $yahc->request({
host => $caddr,
scheme => $proto,
query_string => "sigcnt=$sigcnt",
%{ $request }
});
$yahc->run;
die "we didn't get 200\n" unless ($c->{response}{status} || 0) == 200;
die "body didn't match\n" unless ($c->{response}{body} || '') eq $request->{body};
}
note("$$ client process is done");
});
note("waiting for client to be ready");
sysread($rh, my $b = '', 1);
close($wh);
close($rh);
my $exit_code = 1024;
my @signals = ('HUP', 'USR1', 'USR2', 'USR1', 'USR2' );
note("start spaming client with signals " . join(',', @signals));
my $t0 = time;
while ($t0 + 10 >= time) {
for (my $t1 = time; $t1 + 0.1 >= time;) {
my $sig = $signals[int(rand(scalar @signals))];
# note("send $sig to $pid");
kill $sig, $pid;
nanosleep 100000; # 100 microseconds
}
if (waitpid($pid, WNOHANG) != 0) {
$exit_code = ($? >> 8);
last;
}
}
cmp_ok($exit_code, '==', 0, "client process exited with success")
or return;
note("analizing report");
my $resp = $ht->get("$proto://$caddr/report");
my @report = @{ decode_json($resp->{content} || '{}') };
cmp_ok(scalar @report, '==', $nsignal_requests , "got $nsignal_requests reports");
my $total_sigcnt = 0;
my @report_body_lengths;
my @body_length = map { length $_->{body} } @signal_requests;
my $i = 1;
foreach my $r (@report) {
my $len = $r->{body_length} || 0;
push @report_body_lengths, $len;
my (undef, $sigcnt) = split(/=/, $r->{query_string} || '');
$sigcnt ||= 0;
note("client received $sigcnt signals during #$i request of $len bytes");
$total_sigcnt += $sigcnt;
$i++;
}
cmp_ok($total_sigcnt, '>', 0, "client process received signals");
is_deeply(\@report_body_lengths, \@body_length, "bodies' length match");
};
note("killing web server $spid");
delete t::Utils::_pids->{$spid};
kill 'KILL', $spid;
}
sub _do_requests_and_verify {
my ($addr, $ssl, @requests) = @_;
my ($yahc, $yahc_storage) = YAHC->new;
foreach my $request (@requests) {
note(sprintf("request with body of %s bytes", length($request->{body})));
my $c = $yahc->request({
host => $addr,
scheme => $ssl ? 'https' : 'http',
%{ $request }
});
$yahc->run;
cmp_ok($c->{response}{status}, '==', 200, "We got 200 OK response");
ok($c->{response}{body} eq $request->{body}, "Bodies match");
}
}
END {
kill 'KILL', $_ foreach keys %{ t::Utils::_pids() };
}
done_testing;
|
