RRule\RSet::getExDates PHP Method

    public function getExDates()
    {
        return $this->exdates;
    }

 public function testGetter()
 {
     $rset = new RSet();
     $rset->addRRule(array('FREQ' => 'YEARLY', 'COUNT' => 2, 'BYDAY' => 'TU', 'DTSTART' => date_create('1997-09-02 09:00')));
     $rset->addRRule(new RRule(array('FREQ' => 'YEARLY', 'COUNT' => 1, 'BYDAY' => 'TH', 'DTSTART' => date_create('1997-09-02 09:00'))));
     $rset->addDate(date_create('1997-09-04 09:00'));
     $rset->addDate(date_create('1997-09-05 09:00'));
     $rset->addDate(date_create('1997-09-06 09:00'));
     $rset->addExRule(array('FREQ' => 'YEARLY', 'COUNT' => 3, 'BYDAY' => 'TH', 'DTSTART' => date_create('1997-09-02 09:00')));
     $this->assertInternalType('array', $rset->getRRules());
     $this->assertCount(2, $rset->getRRules());
     $this->assertInternalType('array', $rset->getExRules());
     $this->assertCount(1, $rset->getExRules());
     $this->assertInternalType('array', $rset->getDates());
     $this->assertCount(3, $rset->getDates());
     $this->assertInternalType('array', $rset->getExDates());
     $this->assertCount(0, $rset->getExDates());
 }