@SuppressWarnings("boxing")
@Test
public void testFilter13()
                        throws XMLStreamException, FactoryConfigurationError, IOException {

    Filter result = parse( "v100/testfilter13.xml" );
    OperatorFilter opFilter = (OperatorFilter) result;
    Overlaps overlaps = (Overlaps) opFilter.getOperator();
    Object[] params = overlaps.getParams();
    ValueReference propName = (ValueReference) params[0];
    assertEquals( "Geometry", propName.getAsText() );
    Polygon polygon = (Polygon) params[1];
    LinearRing linearRing = (LinearRing) polygon.getExteriorRing();
    Points points = linearRing.getControlPoints();
    assertEquals( 0.0, points.get( 0 ).get0() );
    assertEquals( 0.0, points.get( 0 ).get1() );
    assertEquals( 1.0, points.get( 1 ).get0() );
    assertEquals( 1.0, points.get( 1 ).get1() );
    assertEquals( 1.0, points.get( 2 ).get0() );
    assertEquals( 2.0, points.get( 2 ).get1() );
    assertEquals( 2.0, points.get( 3 ).get0() );
    assertEquals( 2.0, points.get( 3 ).get1() );
}