@Test
  public void modificationProxySerializeTest() throws Exception {
    Catalog catalog = getCatalog();

    // workspace
    WorkspaceInfo ws = catalog.getWorkspaceByName(MockData.CITE_PREFIX);
    WorkspaceInfo ws2 = serialize(ws);
    assertSame(ModificationProxy.unwrap(ws), ModificationProxy.unwrap(ws2));

    // namespace
    NamespaceInfo ns = catalog.getNamespaceByPrefix(MockData.CITE_PREFIX);
    NamespaceInfo ns2 = serialize(ns);
    assertSame(ModificationProxy.unwrap(ns), ModificationProxy.unwrap(ns2));

    // data store and related objects
    DataStoreInfo ds = catalog.getDataStoreByName(MockData.CITE_PREFIX);
    DataStoreInfo ds2 = serialize(ds);
    assertSame(ModificationProxy.unwrap(ds), ModificationProxy.unwrap(ds2));
    assertSame(
        ModificationProxy.unwrap(ds.getWorkspace()), ModificationProxy.unwrap(ds2.getWorkspace()));

    // coverage store and related objects
    CoverageStoreInfo cs = catalog.getCoverageStoreByName(MockData.TASMANIA_DEM.getLocalPart());
    CoverageStoreInfo cs2 = serialize(cs);
    assertSame(ModificationProxy.unwrap(cs), ModificationProxy.unwrap(cs2));
    assertSame(
        ModificationProxy.unwrap(cs.getWorkspace()), ModificationProxy.unwrap(cs2.getWorkspace()));

    // feature type and related objects
    FeatureTypeInfo ft = catalog.getFeatureTypeByName(getLayerId(MockData.BRIDGES));
    FeatureTypeInfo ft2 = serialize(ft);
    assertSame(ModificationProxy.unwrap(ft), ModificationProxy.unwrap(ft2));
    assertSame(ModificationProxy.unwrap(ft.getStore()), ModificationProxy.unwrap(ft2.getStore()));

    // coverage and related objects
    CoverageInfo ci = catalog.getCoverageByName(getLayerId(MockData.TASMANIA_DEM));
    CoverageInfo ci2 = serialize(ci);
    assertSame(ModificationProxy.unwrap(ci), ModificationProxy.unwrap(ci2));
    assertSame(ModificationProxy.unwrap(ci.getStore()), ModificationProxy.unwrap(ci.getStore()));

    // style
    StyleInfo streamsStyle = catalog.getStyleByName("Streams");
    StyleInfo si2 = serialize(streamsStyle);
    assertSame(ModificationProxy.unwrap(streamsStyle), ModificationProxy.unwrap(si2));

    // layer and related objects
    LayerInfo li = catalog.getLayerByName(getLayerId(MockData.BRIDGES));
    // ... let's add an extra style

    li.getStyles().add(streamsStyle);
    catalog.save(li);
    LayerInfo li2 = serialize(li);
    assertSame(ModificationProxy.unwrap(li), ModificationProxy.unwrap(li2));
    assertSame(
        ModificationProxy.unwrap(li.getResource()), ModificationProxy.unwrap(li2.getResource()));
    assertSame(
        ModificationProxy.unwrap(li.getDefaultStyle()),
        ModificationProxy.unwrap(li2.getDefaultStyle()));
    assertSame(
        ModificationProxy.unwrap(li.getStyles().iterator().next()),
        ModificationProxy.unwrap(li2.getStyles().iterator().next()));

    // try a group layer
    CatalogBuilder cb = new CatalogBuilder(catalog);
    LayerGroupInfo lg = catalog.getFactory().createLayerGroup();
    lg.getLayers().add(catalog.getLayerByName(getLayerId(MockData.ROAD_SEGMENTS)));
    lg.getLayers().add(catalog.getLayerByName(getLayerId(MockData.PONDS)));
    cb.calculateLayerGroupBounds(lg);
    lg.setName("test-lg");
    catalog.add(lg);
    // ... make sure we get a proxy
    lg = catalog.getLayerGroupByName("test-lg");
    if (lg instanceof SecuredLayerGroupInfo) {
      lg = ((SecuredLayerGroupInfo) lg).unwrap(LayerGroupInfo.class);
    }
    LayerGroupInfo lg2 = serialize(lg);
    assertSame(ModificationProxy.unwrap(lg), ModificationProxy.unwrap(lg2));
    assertSame(
        ModificationProxy.unwrap(lg.getLayers().get(0)),
        ModificationProxy.unwrap(lg2.getLayers().get(0)));
    assertSame(
        ModificationProxy.unwrap(lg.getLayers().get(1)),
        ModificationProxy.unwrap(lg2.getLayers().get(1)));

    // now check a half modified proxy
    LayerInfo lim = catalog.getLayerByName(getLayerId(MockData.BRIDGES));
    // ... let's add an extra style
    lim.setDefaultStyle(streamsStyle);
    lim.getStyles().add(streamsStyle);
    // clone and check
    LayerInfo lim2 = serialize(lim);
    assertSame(
        ModificationProxy.unwrap(lim.getDefaultStyle()),
        ModificationProxy.unwrap(lim2.getDefaultStyle()));
    assertSame(
        ModificationProxy.unwrap(lim.getStyles().iterator().next()),
        ModificationProxy.unwrap(lim2.getStyles().iterator().next()));

    // mess a bit with the metadata map too
    String key = "workspaceKey";
    lim.getMetadata().put(key, ws);
    LayerInfo lim3 = serialize(lim);
    assertSame(ModificationProxy.unwrap(lim), ModificationProxy.unwrap(lim3));
    assertSame(
        ModificationProxy.unwrap(lim.getMetadata().get(key)),
        ModificationProxy.unwrap(lim3.getMetadata().get(key)));
  }