public function testFindNthDayOfMonth()
 {
     //Returns the right object
     $this->object = new Application_Model_ReoccurenceTemplate("2011-11-01");
     $this->assertInstanceOf('DateTime', $this->object->findNthDayOfMonth(1));
     //First day of Nov 2011
     $this->object = new Application_Model_ReoccurenceTemplate("2011-11-01");
     $this->assertEquals(1320192000, $this->object->findNthDayOfMonth(2)->getTimestamp());
     //Last day of Nov 2011
     $this->object = new Application_Model_ReoccurenceTemplate("2011-11-01");
     $this->assertEquals(1322611200, $this->object->findNthDayOfMonth(-1)->getTimestamp());
 }
 /**
  * Monthly day pattern entries getter
  * 
  * @param integer $year
  * @param integer $month
  * @return Application_Model_AppDateTime 
  */
 private function _getMonthlyDayPatternEntries($year, $month)
 {
     $rt = new Application_Model_ReoccurenceTemplate("{$year}-{$month}-01");
     $rendered_date = $rt->findNthDayOfMonth($this->_monthly_day_pattern);
     if ($this->_monthly_exception_callback) {
         $callback = $this->_monthly_exception_callback;
         $rendered_date = $callback($rendered_date);
     }
     return $rendered_date;
 }