### Question:
DataTypeListItemView implements DataTypeListItem.View { @Override public void setupSelectComponent(final DataTypeSelect typeSelect) { final HTMLElement element = typeSelect.getElement(); RemoveHelper.removeChildren(getType()); getType().appendChild(element); } @Inject  DataTypeListItemView(final HTMLDivElement view,
                                final TranslationService translationService,
                                final @DMNEditor ReadOnlyProvider readOnlyProvider); @Override void init(final DataTypeListItem presenter); @Override HTMLElement getElement(); @Override void toggleArrow(final boolean show); @Override void expand(); @Override void collapse(); @Override void showEditButton(); @Override void showSaveButton(); @Override void enableFocusMode(); @Override void disableFocusMode(); @Override boolean isOnFocusMode(); @Override String getName(); @Override void setName(final String name); @Override void showDataTypeNameInput(); @Override void hideDataTypeNameInput(); @Override void setupSelectComponent(final DataTypeSelect typeSelect); @Override void setupConstraintComponent(final DataTypeConstraint dataTypeConstraintComponent); @Override void setupListComponent(final SmallSwitchComponent dataTypeListComponent); @Override void showListContainer(); @Override void hideListContainer(); @Override void showListYesLabel(); @Override void hideListYesLabel(); @Override boolean isCollapsed(); @Override void setDataType(final DataType dataType); static final String UUID_ATTR; static final String NAME_DATA_FIELD; static final String PARENT_UUID_ATTR; }### Answer:
@Test public void testSetupSelectComponent() { final DataTypeSelect select = mock(DataTypeSelect.class); final HTMLElement htmlElement = mock(HTMLElement.class); final Element element = mock(Element.class); type.firstChild = element; doReturn(type).when(view).getType(); when(select.getElement()).thenReturn(htmlElement); when(type.removeChild(element)).then(a -> { type.firstChild = null; return element; }); view.setupSelectComponent(select); verify(type).removeChild(element); verify(type).appendChild(htmlElement); }