# tests for functions documented in memcached_auto.pod

use strict;
use warnings;

use Test::More;

use Memcached::libmemcached
    #   functions explicitly tested by this file
    qw(
        memcached_increment
        memcached_decrement
    ),
    #   other functions used by the tests
    qw(
        memcached_set
    );

use lib 't/lib';
use libmemcached_test;

my $memc = libmemcached_test_create();

plan tests => 9;

my $t1= time();
my $k1= "$0-test-key-$t1"; # can't have spaces
my $v1= 42;
my $v2=0;

print "memcached_increment the not yet stored value\n";
ok !memcached_increment($memc, $k1, 1, $v2),
    'should not exist yet and so should return false';
ok defined memcached_increment($memc, $k1, 1, $v2),
    'should not exist yet and so should return false but defined';

print "memcached_set\n";
ok memcached_set($memc, $k1, $v1);

print "memcached_increment the just stored value\n";
ok memcached_increment($memc, $k1, 1, $v2),
    'should increment existing value';
is $v2, $v1+1;

ok memcached_increment($memc, $k1, 1, $v2),
    'should increment existing value';
is $v2, $v1+2;

ok memcached_decrement($memc, $k1, 1, $v2),
    'should increment existing value';
is $v2, $v1+1;

# repeat for value with a null byte to check value_length works