/**
  * @deprecated since 0.8.0
  * @return void
  */
 public function testTestAlnum()
 {
     $source = array('a1b2c3', 'a1!b2@c3#');
     $filter = new Zend_Filter_Input($source);
     $this->assertEquals('a1b2c3', $filter->testAlnum(0));
     $this->assertFalse($filter->testAlnum(1));
     $this->assertFalse($filter->testAlnum(2));
 }