public function testFilterCreation()
{
$f1 = Zend_Ldap_Filter::equals('name', 'value');
$this->assertEquals('(name=value)', $f1->toString());
$f2 = Zend_Ldap_Filter::begins('name', 'value');
$this->assertEquals('(name=value*)', $f2->toString());
$f3 = Zend_Ldap_Filter::ends('name', 'value');
$this->assertEquals('(name=*value)', $f3->toString());
$f4 = Zend_Ldap_Filter::contains('name', 'value');
$this->assertEquals('(name=*value*)', $f4->toString());
$f5 = Zend_Ldap_Filter::greater('name', 'value');
$this->assertEquals('(name>value)', $f5->toString());
$f6 = Zend_Ldap_Filter::greaterOrEqual('name', 'value');
$this->assertEquals('(name>=value)', $f6->toString());
$f7 = Zend_Ldap_Filter::less('name', 'value');
$this->assertEquals('(name<value)', $f7->toString());
$f8 = Zend_Ldap_Filter::lessOrEqual('name', 'value');
$this->assertEquals('(name<=value)', $f8->toString());
$f9 = Zend_Ldap_Filter::approx('name', 'value');
$this->assertEquals('(name~=value)', $f9->toString());
$f10 = Zend_Ldap_Filter::any('name');
$this->assertEquals('(name=*)', $f10->toString());
$f11 = Zend_Ldap_Filter::string('name=*value*value*');
$this->assertEquals('(name=*value*value*)', $f11->toString());
$f12 = Zend_Ldap_Filter::mask('(&(objectClass=account)(uid=%s))', 'a*b(b)d\\e/f');
$this->assertEquals('(&(objectClass=account)(uid=a\\2ab\\28b\\29d\\5ce/f))', $f12->toString());
}