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package # Hide from PAUSE
Test::SpawnRedisServer;
use strict;
use warnings;
use Redis::Fast;
use File::Temp;
use IPC::Cmd qw(can_run);
use POSIX ":sys_wait_h";
use base qw( Exporter );
use Net::EmptyPort qw(empty_port);
our @EXPORT = qw( redis sentinel );
our @EXPORT_OK = qw( redis reap );
sub redis {
my %params = (
timeout => 120,
@_,
);
my ($fh, $fn) = File::Temp::tempfile();
my $port = empty_port();
my $local_port = $port;
$params{port}
and $local_port = $params{port};
my $addr = "127.0.0.1:$local_port";
unlink("redis-server-$addr.log");
unlink('dump.rdb');
$fh->print("
timeout $params{timeout}
appendonly no
daemonize no
port $local_port
bind 127.0.0.1
loglevel debug
logfile redis-server-$addr.log
");
$fh->print("maxclients $params{maxclients}\n") if $params{maxclients};
$fh->print("requirepass $params{password}\n") if $params{password};
$fh->flush;
Test::More::diag("Spawn Redis at $addr, cfg $fn") if $ENV{REDIS_DEBUG};
my $redis_server_path = $ENV{REDIS_SERVER_PATH} || 'redis-server';
if (!can_run($redis_server_path)) {
Test::More::plan skip_all => "Could not find binary redis-server";
return;
}
my ($ver, $c);
eval { ($ver, $c) = spawn_server($redis_server_path, $fn, $addr, $params{password}) };
if (my $e = $@) {
reap();
Test::More::plan skip_all => "Could not start redis-server: $@";
return;
}
if (my $rvs = $params{requires_version}) {
if (!defined $ver) {
$c->();
Test::More::plan skip_all => "This tests require at least redis-server $rvs, could not determine server version";
return;
}
my ($v1, $v2, $v3) = split(/[.]/, $ver);
my ($r1, $r2, $r3) = split(/[.]/, $rvs);
if ($v1 < $r1 or $v1 == $r1 and $v2 < $r2 or $v1 == $r1 and $v2 == $r2 and $v3 < $r3) {
$c->();
Test::More::plan skip_all => "This tests require at least redis-server $rvs, server found is $ver";
return;
}
}
return ($c, $addr, $ver, split(/[.]/, $ver), $local_port);
}
sub sentinel {
my %params = (
timeout => 120,
@_,
);
my ($fh, $fn) = File::Temp::tempfile();
my $port = empty_port();
my $local_port = $port;
$params{port}
and $local_port = $params{port};
my $redis_port = $params{redis_port}
or die "need a redis port";
my $addr = "127.0.0.1:$local_port";
unlink("redis-sentinel-$addr.log");
$fh->print("
port $local_port
sentinel monitor mymaster 127.0.0.1 $redis_port 2
sentinel down-after-milliseconds mymaster 2000
sentinel failover-timeout mymaster 4000
logfile sentinel-$addr.log
");
$fh->flush;
my $redis_server_path = $ENV{REDIS_SERVER_PATH} || 'redis-server';
if (!can_run($redis_server_path)) {
Test::More::plan skip_all => "Could not find binary redis-server";
return;
}
my ($ver, $c);
eval { ($ver, $c) = spawn_server($redis_server_path, $fn, '--sentinel', $addr, undef) };
if (my $e = $@) {
reap();
Test::More::plan skip_all => "Could not start redis-sentinel: $@";
return;
}
if (my $rvs = $params{requires_version}) {
if (!defined $ver) {
$c->();
Test::More::plan skip_all => "This tests require at least redis-server $rvs, could not determine server version";
return;
}
my ($v1, $v2, $v3) = split(/[.]/, $ver);
my ($r1, $r2, $r3) = split(/[.]/, $rvs);
if ($v1 < $r1 or $v1 == $r1 and $v2 < $r2 or $v1 == $r1 and $v2 == $r2 and $v3 < $r3) {
$c->();
Test::More::plan skip_all => "This tests require at least redis-server $rvs, server found is $ver";
return;
}
}
return ($c, $addr, $ver, split(/[.]/, $ver), $local_port);
}
sub spawn_server {
my $password = pop;
my $addr = pop;
my $pid = fork();
if ($pid) { ## Parent
require Test::More;
Test::More::diag("Starting server with pid $pid") if $ENV{REDIS_DEBUG};
my %args = (server => $addr, reconnect => 5, every => 200);
$args{password} = $password if defined $password;
my $redis = Redis::Fast->new(%args);
my $version = $redis->info->{redis_version};
my $alive = $$;
$redis->quit;
my $c = sub {
return unless $alive;
return unless $$ == $alive; ## only our creator can kill us
Test::More::diag("Killing server at $pid") if $ENV{REDIS_DEBUG};
kill(15, $pid);
my $failed = reap($pid);
Test::More::diag("Failed to kill server at $pid")
if $ENV{REDIS_DEBUG} and $failed;
unlink("redis-server-$addr.log");
unlink("redis-sentinel-$addr.log");
unlink('dump.rdb');
$alive = 0;
return !$failed;
};
return $version => $c;
}
elsif (defined $pid) { ## Child
exec(@_);
warn "## In child Failed exec of '@_': $!, ";
exit(1);
}
die "Could not fork(): $!";
}
sub reap {
my ($pid, $limit) = @_;
$pid = -1 unless $pid;
$limit = 3 unless $limit;
my $try = 0;
local $?;
while ($try++ < $limit) {
my $ok = waitpid($pid, WNOHANG);
$try = 0, last if $ok > 0;
sleep(1);
}
return $try;
}
1;
|
