ColumnTypeEditor implements IsWidget,
                                         org.dashbuilder.dataset.client.editor.ColumnTypeEditor { @Override public DropDownImageListEditor<ColumnType> columnType() { return columnType; } @Inject  ColumnTypeEditor(final DropDownImageListEditor<ColumnType> columnType); @PostConstruct void init(); @Override Widget asWidget(); void addHelpContent(final String title,
                               final String content,
                               final Placement placement); @Override void setOriginalColumnType(final ColumnType columnType); @Override DropDownImageListEditor<ColumnType> columnType(); @Override void flush(); @Override void onPropertyChange(final String... paths); @Override void setValue(final DataColumnDef value); @Override void setDelegate(final EditorDelegate<DataColumnDef> delegate); @Override void isEditMode(final boolean isEdit);  }
@Test public void testColumnType() { assertEquals(columnType, presenter.columnType()); }