public void testConnectionFailure() throws Exception {
    // create mock objects that will simulate a connection failure
    GSSClient client = createMock(GSSClient.class);
    expect(client.getCentralRevision((QName) anyObject()))
        .andThrow(new IOException("Host unreachable"));
    replay(client);
    GSSClientFactory factory = createMock(GSSClientFactory.class);
    expect(factory.createClient(new URL("http://localhost:8081/geoserver/ows"), null, null))
        .andReturn(client);
    replay(factory);

    synch.clientFactory = factory;

    // perform synch
    Date start = new Date();
    synch.synchronizeOustandlingLayers();
    Date end = new Date();

    // check we stored the last failure marker
    SimpleFeature f =
        getSingleFeature(fsUnitTables, ff.equal(ff.property("table_id"), ff.literal(1), false));
    Date lastFailure = (Date) f.getAttribute("last_failure");
    assertNotNull(lastFailure);
    assertTrue(lastFailure.compareTo(start) >= 0 && lastFailure.compareTo(end) <= 0);

    // check we marked the unit as failed
    f = getSingleFeature(fsUnits, ff.equal(ff.property("unit_name"), ff.literal("unit1"), false));
    assertTrue((Boolean) f.getAttribute("errors"));
  }
  public void testLocalChanges() throws Exception {
    // apply a local change on Central so that we'll get a non empty transaction sent to the client
    VersioningFeatureStore restricted =
        (VersioningFeatureStore) synchStore.getFeatureSource("restricted");
    SimpleFeatureType schema = restricted.getSchema();
    // remove the third feature
    Id removeFilter =
        ff.id(singleton(ff.featureId("restricted.c15e76ab-e44b-423e-8f85-f6d9927b878a")));
    restricted.removeFeatures(removeFilter);
    assertEquals(3, restricted.getCount(Query.ALL));

    // build the expected PostDiff request
    QName typeName = new QName("http://www.openplans.org/spearfish", "restricted");
    PostDiffType postDiff = new PostDiffType();
    postDiff.setFromVersion(-1);
    postDiff.setToVersion(3);
    postDiff.setTypeName(typeName);
    TransactionType changes = WfsFactory.eINSTANCE.createTransactionType();
    DeleteElementType delete = WfsFactory.eINSTANCE.createDeleteElementType();
    delete.setTypeName(typeName);
    delete.setFilter(removeFilter);
    changes.getDelete().add(delete);
    postDiff.setTransaction(changes);

    // create mock objects that will check the calls are flowing as expected
    GSSClient client = createMock(GSSClient.class);
    expect(client.getCentralRevision((QName) anyObject())).andReturn(new Long(-1));
    client.postDiff(postDiff);
    expect(client.getDiff((GetDiffType) anyObject())).andReturn(new GetDiffResponseType());
    replay(client);
    GSSClientFactory factory = createMock(GSSClientFactory.class);
    expect(factory.createClient(new URL("http://localhost:8081/geoserver/ows"), null, null))
        .andReturn(client);
    replay(factory);

    synch.clientFactory = factory;

    // perform synch
    Date start = new Date();
    synch.synchronizeOustandlingLayers();
    Date end = new Date();

    // check we stored the last synch marker
    SimpleFeature f =
        getSingleFeature(fsUnitTables, ff.equal(ff.property("table_id"), ff.literal(1), false));
    Date lastSynch = (Date) f.getAttribute("last_synchronization");
    assertNotNull(lastSynch);
    assertTrue(lastSynch.compareTo(start) >= 0 && lastSynch.compareTo(end) <= 0);
    assertNull(f.getAttribute("last_failure"));

    // check we marked the unit as succeded
    f = getSingleFeature(fsUnits, ff.equal(ff.property("unit_name"), ff.literal("unit1"), false));
    assertFalse((Boolean) f.getAttribute("errors"));
  }
  public void testEmptyUpdates() throws Exception {
    QName typeName = new QName("http://www.openplans.org/spearfish", "restricted");

    // build a "no loca changes" post diff
    PostDiffType postDiff = new PostDiffType();
    postDiff.setFromVersion(-1);
    postDiff.setToVersion(-1);
    postDiff.setTypeName(typeName);
    postDiff.setTransaction(WfsFactory.eINSTANCE.createTransactionType());

    // create mock objects that will simulate a connection failure
    GSSClient client = createMock(GSSClient.class);
    expect(client.getCentralRevision((QName) anyObject())).andReturn(new Long(-1));
    client.postDiff(postDiff);
    expect(client.getDiff((GetDiffType) anyObject())).andReturn(new GetDiffResponseType());
    replay(client);
    GSSClientFactory factory = createMock(GSSClientFactory.class);
    expect(factory.createClient(new URL("http://localhost:8081/geoserver/ows"), null, null))
        .andReturn(client);
    replay(factory);

    synch.clientFactory = factory;

    // perform synch
    Date start = new Date();
    synch.synchronizeOustandlingLayers();
    Date end = new Date();

    // check we stored the last synch marker
    SimpleFeature f =
        getSingleFeature(fsUnitTables, ff.equal(ff.property("table_id"), ff.literal(1), false));
    Date lastSynch = (Date) f.getAttribute("last_synchronization");
    assertNotNull(lastSynch);
    assertTrue(lastSynch.compareTo(start) >= 0 && lastSynch.compareTo(end) <= 0);
    assertNull(f.getAttribute("last_failure"));

    // check we marked the unit as succeded
    f = getSingleFeature(fsUnits, ff.equal(ff.property("unit_name"), ff.literal("unit1"), false));
    assertFalse((Boolean) f.getAttribute("errors"));
  }