EDIT

import eu.etaxonomy.cdm.model.common.IdentifiableSource;

import eu.etaxonomy.cdm.model.media.Media;

import eu.etaxonomy.cdm.model.occurrence.MediaSpecimen;

    private SpecimenTypeDesignation mtd_HT_published;

    private SpecimenTypeDesignation mtd_IT_unpublished;

        createDerivationEvent(fu_1, specimen_HT);

        createDerivationEvent(fu_1, specimen_IT);

        createDerivationEvent(fu_1, specimen_IT_2);

        createDerivationEvent(fu_1, specimen_IT_3);

        mtd_HT_published = SpecimenTypeDesignation.NewInstance();

        mtd_HT_published.setId(5);

        MediaSpecimen mediaSpecimen_published = (MediaSpecimen)DerivedUnit.NewInstance(SpecimenOrObservationType.Media);

        Media media = Media.NewInstance();

        Reference ref = ReferenceFactory.newGeneric();

        ref.setTitleCache("A.K. & W.K (2008) Algae of the BGBM", true);

        media.addSource(IdentifiableSource.NewPrimaryMediaSourceInstance(ref, "p.33"));

        mediaSpecimen_published.setMediaSpecimen(media);

        createDerivationEvent(fu_1, mediaSpecimen_published);

        mtd_HT_published.setTypeSpecimen(mediaSpecimen_published);

        mtd_HT_published.setTypeStatus(SpecimenTypeDesignationStatus.HOLOTYPE());

        mtd_IT_unpublished = SpecimenTypeDesignation.NewInstance();

        mtd_IT_unpublished.setId(6);

        MediaSpecimen mediaSpecimen_unpublished = (MediaSpecimen)DerivedUnit.NewInstance(SpecimenOrObservationType.Media);

        eu.etaxonomy.cdm.model.occurrence.Collection collection = eu.etaxonomy.cdm.model.occurrence.Collection.NewInstance();

        collection.setCode("B");

        mediaSpecimen_unpublished.setCollection(collection);

        mediaSpecimen_unpublished.setAccessionNumber("Slide A565656");

        createDerivationEvent(fu_1, mediaSpecimen_unpublished);

        mtd_IT_unpublished.setTypeSpecimen(mediaSpecimen_unpublished);

        mtd_IT_unpublished.setTypeStatus(SpecimenTypeDesignationStatus.ISOTYPE());

    }

    /**

     * @param fu_1

     * @param specimen_IT_2

     */

    protected void createDerivationEvent(FieldUnit fu_1, DerivedUnit specimen_IT_2) {

        DerivationEvent derivationEvent_3 = DerivationEvent.NewInstance();

        derivationEvent_3.addOriginal(fu_1);

        derivationEvent_3.addDerivative(specimen_IT_2);

        Map<TypeDesignationStatusBase<?>, Collection<TypedEntityReference>> byStatusMap = orderedTypeDesignations.values().iterator().next();

    @Test

    public void test_mediaType(){

        for(int i = 0; i < 10; i++ ){

            init();

            // repeat 10 times to assure the order of typedesignations is fix in the representations

            TaxonName typifiedName = TaxonNameFactory.NewBacterialInstance(Rank.SPECIES());

            typifiedName.setTitleCache("Prionus coriatius L.", true);

            typifiedName.addTypeDesignation(mtd_HT_published, false);

            typifiedName.addTypeDesignation(mtd_IT_unpublished, false);

            TypeDesignationSetManager typeDesignationManager = new TypeDesignationSetManager(typifiedName);

            typeDesignationManager.addTypeDesigations(null, mtd_HT_published);

            typeDesignationManager.addTypeDesigations(null, mtd_IT_unpublished);

            assertEquals("failed after repreating " + i + " times",

                    "Prionus coriatius L. Type: Testland, near Bughausen, A.Kohlbecker 81989, 2017 Holotype, [icon] p.33 in A.K. & W.K (2008) Algae of the BGBM; Isotype, [icon] (B Slide A565656)."

                    , typeDesignationManager.print()

                    );

        }

    }