/**
  * Testen den Inhalt des Monats mit den Tagen
  */
 public function testFillMonthWihtEntry()
 {
     $weeks = ['Saturday', 'Monday'];
     $monthOverview = new MonthOverview();
     $monthOverview->createAheadMonth(1);
     $thisMonth = new Month();
     $thisMonth->setMonth("now");
     $monthOverview->fillMonthWithDaysFor($weeks);
     $month = $monthOverview->getMonthByName($thisMonth->getMonthName());
     /** @var Day $day */
     foreach ($month as $day) {
         $week = $day->getTaDay()->format('l');
         $this->assertContains($week, $weeks);
     }
 }