gistfile1.txt

CREATE TABLE specialties (
  id   IDENTITY PRIMARY KEY,
  name VARCHAR(80)
);


// file Specialty.java
@Entity
@Table(name = "specialties")
public class Specialty extends NamedEntity {
}

// file namedentity.java
@MappedSuperclass
public class NamedEntity extends BaseEntity {

    @Column(name = "name")
    @NotEmpty
    private String name;

    public String getName() {
        return this.name;
    }

    public void setName(String name) {
        this.name = name;
    }

    @Override
    public String toString() {
        return this.getName();
    }

}

// file BaseEntity
@MappedSuperclass
public class BaseEntity {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    protected Integer id;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }
    @JsonIgnore
    public boolean isNew() {
        return this.id == null;
    }

}

// file ClinicServiceTests
 @Test
    @Transactional
    public void shouldInsertSpecialty() {
        Collection<Specialty> specialties = this.clinicService.findAllSpecialties();
        int found = specialties.size();

        Specialty specialty = new Specialty();
        specialty.setName("dermatologista");

        this.clinicService.saveSpecialty(specialty);
        assertThat(specialty.getId().longValue()).isNotEqualTo(0);

        specialties = this.clinicService.findAllSpecialties();
        assertThat(specialties.size()).isEqualTo(found + 1);
    }