/**
  * @test
  */
 public function setParticipantsUpdatesTotalPrice()
 {
     $this->subject = $this->getAccessibleMock(Reservation::class, ['getLesson']);
     $singlePrice = 123.45;
     $totalPrice = 2 * $singlePrice;
     $firstParticipant = new Person();
     $secondParticipant = new Person();
     $objectStorageContainingTwoParticipants = new ObjectStorage();
     $objectStorageContainingTwoParticipants->attach($firstParticipant);
     $objectStorageContainingTwoParticipants->attach($secondParticipant);
     $lesson = $this->getMock(Schedule::class, ['getPrice']);
     $lesson->expects($this->any())->method('getPrice')->will($this->returnValue($singlePrice));
     $this->subject->expects($this->any())->method('getLesson')->will($this->returnValue($lesson));
     $this->subject->setParticipants($objectStorageContainingTwoParticipants);
     $this->assertSame($totalPrice, $this->subject->getTotalPrice());
 }