/**
     *
     */
    public function testVerifyNumRef()
    {
    	global $conf,$user,$langs,$db;
		$conf=$this->savconf;
		$user=$this->savuser;
		$langs=$this->savlangs;
		$db=$this->savdb;

		$localobject=new CommandeFournisseur($this->savdb);
    	$result=$localobject->ref='refthatdoesnotexists';
		$result=$localobject->VerifyNumRef();

		print __METHOD__." result=".$result."\n";
    	$this->assertEquals($result, 0);
    	return $result;
    }