Asserion failed service testing spring - spring

Question

I have a simple shampoos-warehouse api and want to test it service logic, but something going wrong.
Here's my Service Test:
RunWith(SpringRunner.class)
#SpringBootTest
class ShampooServiceTest {
public static final String SHAMPOO_NAME = "name";
public static final int SHAMPOO_CAPACITY = 1000;
public static final int SHAMPOO_QUANTITY = 30;
public static final boolean SHAMPOO_IS_HEALTHY = true;
public static final LocalDate SHAMPOO_EXPIRATION_DATE = LocalDate.parse("2022-11-11");
public static final String SHAMPOO_PARAM = "equals";
#Autowired
ShampooService shampooService;
#MockBean
ShampooRepository shampooRepository;
#Test
void getAddAndGetTotalShampoosByParams(){
shampooService.addShampoos(UUID.randomUUID(), SHAMPOO_NAME, SHAMPOO_CAPACITY, SHAMPOO_QUANTITY, SHAMPOO_IS_HEALTHY, SHAMPOO_EXPIRATION_DATE);
assertEquals(String.valueOf(SHAMPOO_QUANTITY), shampooService.getTotalShampoosByParam(SHAMPOO_NAME, SHAMPOO_CAPACITY, SHAMPOO_PARAM));
}
I have an assertion error here:
org.opentest4j.AssertionFailedError:
Expected :30
Actual :0
Here's my DTO:
public class ShampooDto {
public interface IncomeValidation{}
public interface OutcomeValidation{}
#NotNull(groups={IncomeValidation.class, OutcomeValidation.class})
private String name;
#Min(100)
#Max(5000)
#NotNull(groups={IncomeValidation.class, OutcomeValidation.class})
private int capacity;
#NotNull(groups={IncomeValidation.class, OutcomeValidation.class})
private int quantity;
#NotNull(groups={IncomeValidation.class})
private boolean healthy;
#NotNull(groups={IncomeValidation.class})
private LocalDate expiration_date;
}
And here's my service:
public String getTotalShampoosByParam(String name, int capacity, String param){
Integer totalQuantity;
switch (param){
case "less":
totalQuantity = shampooRepository.getTotalQuantityWhereCapacityLess(name, capacity);
break;
case "equals":
totalQuantity = shampooRepository.getTotalQuantityWhereCapacityEquals(name, capacity);
break;
case "more":
totalQuantity = shampooRepository.getTotalQuantityWhereCapacityMore(name, capacity);
break;
default:
totalQuantity = 0;
}
if(totalQuantity!=null){
return String.valueOf(totalQuantity);
}
else{
return "0";
}
}
public Shampoo addShampoos(UUID id, String name, int capacity, int quantity, boolean healthy, LocalDate expiration_date) throws ValidationException {
Optional<Shampoo> answer = shampooRepository.findShampooByNameAndCapacity(name, capacity);
if(answer.isPresent()){
Shampoo shampoo = answer.get();
shampoo.setQuantity(shampoo.getQuantity() + quantity);
shampooRepository.save(shampoo);
return shampoo;
}
else{
Shampoo shampoo = new Shampoo(id, name, capacity, quantity, healthy, expiration_date, LocalDate.now());
shampooRepository.save(shampoo);
return shampoo;
}
}
The problem is that when I added Shampoos and search it by requests, all works, but my test give me "0" instead of "30"