@Test
public void testDelete() throws VetoException {

    final MetadataCol52 column = new MetadataCol52();
    column.setMetadata("smurf");
    modelSynchronizer.appendColumn(column);
    assertEquals(1,
                 model.getMetadataCols().size());
    assertEquals(4,
                 uiModel.getColumns().size());
    modelSynchronizer.deleteColumn(column);
    assertEquals(0,
                 model.getMetadataCols().size());
    assertEquals(3,
                 uiModel.getColumns().size());
}