function testRRD()
{
$RRD = new RRD("/tmp/test.rrd");
// Add DS
$RRD->AddDS(new RRDDS("test", "GAUGE", 3600));
$RRD->AddDS(new RRDDS("test2", "GAUGE", 3600));
// Add RRA
$RRD->AddRRA(new RRA("HWPREDICT", array(1440, 0.1, 0.0035, 288)));
$RRD->AddRRA(new RRA("AVERAGE", array(0.5, 1, 1000)));
$this->assertTrue($RRD->Create(0, 3600) && file_exists("/tmp/test.rrd"), "Database created.");
$this->assertTrue($RRD->Update(array(1, 2)), "Database updated.");
}
