@Test
void shouldThrowPetNotAvailable_whenPetIsNotAvailable() {

	var pet = new Pet();
	pet.setStatus(PetStatus.SOLD);
	BDDMockito.given(petRepository.findById(PET_ID)).willReturn(Optional.of(pet));
	Assertions.assertThrows(PetNotAvailableException.class, () -> petOrderer.order(PET_ID));
}