EDIT

        DerivedUnit du = std.getTypeSpecimen();

        DerivationEvent derivationEvent = du.getDerivedFrom();

        std.setTypeSpecimen(null);

        repo.getOccurrenceService().delete(du, specimenDeleteConfigurer);

        repo.getNameService().deleteTypeDesignation(dto.getTypifiedName(), std);

import java.net.URISyntaxException;

import org.junit.Assert;

import org.junit.Test;

import org.unitils.database.annotations.Transactional;

import org.unitils.database.util.TransactionMode;

    @SpringBeanByType

    private ISpecimenTypeDesignationWorkingSetService service;

    int registrationId = 5000;

    private Integer publicationId = 5000;

    private Integer typifiedNameId = 5000;

            "HIBERNATE_SEQUENCES"};

            "DERIVATIONEVENT", "GATHERINGEVENT", "LANGUAGESTRING", "SPECIMENOROBSERVATIONBASE", "TYPEDESIGNATIONBASE",

            "REGISTRATION_TYPEDESIGNATIONBASE", "TAXONNAME_TYPEDESIGNATIONBASE", "SPECIMENOROBSERVATIONBASE_DERIVATIONEVENT",

            "MEDIA", "MEDIA_REPRESENTATION", "MEDIAREPRESENTATION", "MEDIAREPRESENTATIONPART",

    @Test

    @DataSet("SpecimenTypeDesignationWorkingSetServiceImplTest-deleteTest.xml")

    public void deleteTypeDesignationTest() {

        SpecimenTypeDesignationWorkingSetDTO<Registration> workingset = service.loadDtoByIds(registrationId, 0);

        Assert.assertTrue(workingset.getSpecimenTypeDesignationDTOs().size() == 2);

        SpecimenTypeDesignation std = deleteDTO.asSpecimenTypeDesignation();

        reg.getTypeDesignations().remove(std);

        service.save(workingset);

        workingset = service.loadDtoByIds(registrationId, 0);

        Assert.assertEquals(1, workingset.getSpecimenTypeDesignationDTOs().size());

    }

    @Test

    @DataSet("SpecimenTypeDesignationWorkingSetServiceImplTest-deleteTest.xml")

    public void deleteWorkingsetTest() {

        SpecimenTypeDesignationWorkingSetDTO<Registration> workingset = service.loadDtoByIds(registrationId, 0);

        service.delete(workingset, true);

//        UUID gatheringEventUUID = UUID.fromString("23d40440-38bb-46c1-af11-6e25dcfa0145");

        // FIXME Assert.assertEquals("Gathering event should have been deleted by orphan remove", 0, cdmRepository.getEventBaseService().count(GatheringEvent.class));

        // FIXME Assert.assertEquals("Media should have been deleted ", 0, cdmRepository.getMediaService().count(null));

    }

    // ---------------------- TestData -------------------------------------------