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|
#!perl
use warnings;
use strict;
use Test::More;
use Test::Fatal;
use Redis::Fast;
use lib 't/tlib';
use Test::SpawnRedisServer;
use constant SSL_AVAILABLE => eval { require IO::Socket::SSL };
my ($c, $t, $srv) = redis(timeout => 3); # redis connection timeouts within 3 seconds.
my $use_ssl = $t ? SSL_AVAILABLE : 0;
END {
$c->() if $c;
$t->() if $t;
}
# Reconnect once
# when
## 1. reconnect is greater than 0
## 2. and reconnect_on_error returns a value greater than and equal to 0
## 3. and a specified time seconds elapsed
my $sync_call_hset = sub {
my ($client, $hint) = @_;
like (exception { $client->hset(1,1) },
qr{ERR wrong number of arguments for 'hset' command},
'syntax error')
or diag "hint=$hint";
return 'sync';
};
my $async_call_hset = sub {
my ($client, $hint) = @_;
my $_cb_call_count = 0;
my $_cb = sub {
my ($ret, $error) = @_;
is $error, "ERR wrong number of arguments for 'hset' command"
or diag "_cb_call_count=$_cb_call_count, hint=$hint";
ok !$ret
or diag "_cb_call_count=$_cb_call_count, hint=$hint";
$_cb_call_count++;
};
$client->hset(1,1,$_cb);
$client->hset(2,2,$_cb);
$client->wait_all_responses;
is $_cb_call_count, 2;
return 'async';
};
# Check a condition 1.
subtest 'reconnect option is 0: reconnect_on_error is not called' => sub {
for my $call_hset ($sync_call_hset, $async_call_hset) {
my $cb_call_count = 0;
my $r = Redis::Fast->new(
reconnect => 0, # do not trigger reconnection.
server => $srv,
ssl => $use_ssl,
SSL_verify_mode => 0,
reconnect_on_error => sub { $cb_call_count++ },
);
my $hint = $call_hset->($r, "reconnect is 0");
is $cb_call_count, 0, 'reconnect_on_error is not called'
or diag "call=$hint";
}
};
subtest 'reconnect option is 1: reconnect_on_error is called once' => sub {
for my $call_hset ($sync_call_hset, $async_call_hset) {
my $cb_call_count = 0;
my $r = Redis::Fast->new(
reconnect => 1, # trigger reconnection until 1 second elapsed.
server => $srv,
ssl => $use_ssl,
SSL_verify_mode => 0,
reconnect_on_error => sub {
my ($error, $ret, $cmd) = @_;
# increment a counter to test it later.
$cb_call_count++;
# tests each argument.
is $error, "ERR wrong number of arguments for 'hset' command";
ok !$ret;
is $cmd, 'HSET';
return 0; # 0 means invake reconnection as soon as possible.
},
);
my $hint = $call_hset->($r, "reconnect is 1");
is $cb_call_count, 1, 'reconnect_on_error is called once'
or diag "call=$hint";
}
};
# Check a condition 2.
subtest "reconnect_on_error returns -1: redis ERR doesn't trigger reconnection" => sub {
for my $call_hset ($sync_call_hset, $async_call_hset) {
my $connect_count = 0;
my $cb_call_count = 0;
my $r = Redis::Fast->new(
reconnect => 1,
server => $srv,
ssl => $use_ssl,
SSL_verify_mode => 0,
on_connect => sub { $connect_count++ },
reconnect_on_error => sub {
$cb_call_count++;
return -1; # reconnect_on_error returns -1
},
);
my $hint = $call_hset->($r, "reconnect_on_error returns -1");
is $connect_count, 1, "redis ERR doesn't trigger reconnection";
if ($hint eq 'async') {
is $cb_call_count, 2, 'call reconnect_on_error each async call for hset'
or diag "cb_return_value=-1 hint=$hint";
} else {
is $cb_call_count, 1, 'call reconnect_on_error once'
or diag "cb_return_value=-1, hint=$hint";
}
}
};
subtest "reconnect_on_error returns 0: redis ERR triggers reconnection" => sub {
for my $call_hset ($sync_call_hset, $async_call_hset) {
my $connect_count = 0;
my $cb_call_count = 0;
my $r = Redis::Fast->new(
reconnect => 1,
server => $srv,
ssl => $use_ssl,
SSL_verify_mode => 0,
on_connect => sub { $connect_count++ },
reconnect_on_error => sub {
$cb_call_count++;
return 0; # reconnect_on_error returns 0
},
);
my $hint = $call_hset->($r, "reconnect_on_error returns 0");
is $connect_count, 2, "redis ERR triggers reconnection";
# If $cb_return_value is 0 and then $self->need_reconnect is set,
# calling the reconnect_on_error cb again is useless cost.
is $cb_call_count, 1, 'call reconnect_on_error once'
or diag "cb_return_value=-1, hint=$hint";
}
};
# Check a condition 3.
subtest "reconnection will not be triggered until specified seconds elapsed." => sub {
for my $call_hset ($sync_call_hset, $async_call_hset) {
my $hint;
my $cb_call_count = 0;
my $cb_return_value = 0;
my $r = Redis::Fast->new(
reconnect => 1,
server => $srv,
ssl => $use_ssl,
SSL_verify_mode => 0,
reconnect_on_error => sub {
$cb_call_count++;
return $cb_return_value;
},
);
# reconnect if the redis returns ERR,
# and next reconnection will be triggered.
$cb_return_value = 0;
$hint = $call_hset->($r, $cb_return_value);
is $cb_call_count, 1, 'call reconnect_on_error once'
or diag "cb_return_value=$cb_return_value, call=$hint";
# reconnect if the redis returns ERR,
# and next reconnection will not be triggered until 1 second elapsed.
$cb_return_value = 1;
$hint = $call_hset->($r, $cb_return_value);
is $cb_call_count, 2, 'call reconnect_on_error twice'
or diag "cb_return_value=$cb_return_value, call=$hint";
# reconnection is not triggered
# because $cb_return_value seconds have not passed since the last reconnection.
$hint = $call_hset->($r, $cb_return_value);
is $cb_call_count, 2, 'call reconnect_on_error twice'
or diag "cb_return_value=$cb_return_value, call=$hint";
}
};
subtest "reconnection will be triggered after specified seconds elapsed." => sub {
for my $call_hset ($sync_call_hset, $async_call_hset) {
my $hint;
my $cb_call_count = 0;
my $cb_return_value = 0;
my $r = Redis::Fast->new(
reconnect => 1,
server => $srv,
ssl => $use_ssl,
SSL_verify_mode => 0,
reconnect_on_error => sub {
$cb_call_count++;
return $cb_return_value;
},
);
# reconnect if the redis returns ERR,
# and next reconnection will be triggered.
$cb_return_value = 0;
$hint = $call_hset->($r, $cb_return_value);
is $cb_call_count, 1, 'call reconnect_on_error once'
or diag "cb_return_value=$cb_return_value, call=$hint";
# reconnect if the redis returns ERR,
# and next reconnection will not be triggered until 1 second elapsed.
$cb_return_value = 1;
$hint = $call_hset->($r, $cb_return_value);
is $cb_call_count, 2, 'call reconnect_on_error twice'
or diag "cb_return_value=$cb_return_value, call=$hint";
# wait for $cb_return_value seconds to pass since the last reconnection.
# +1 second is a buffer.
sleep $cb_return_value + 1;
# reconnection is triggered
# because $cb_return_value seconds have passed since the last reconnection.
$hint = $call_hset->($r, $cb_return_value);
is $cb_call_count, 3, 'call reconnect_on_error twice'
or diag "cb_return_value=$cb_return_value, call=$hint";
}
};
done_testing();
|
