Map hints=new HashMap();
InputStream in = TestData.openStream("xml/capabilities/WFSGetCapsGeoserverFunctionExpressions.xml");
WFSCapabilities obj=(WFSCapabilities) DocumentFactory.getInstance(in, hints, Level.WARNING);
FilterCapabilities filterCapabilities = obj.getFilterCapabilities();
boolean supports = filterCapabilities.supports(FilterCapabilities.FUNCTIONS);
assertTrue("supports functions", supports);
assertTrue("supports distance", filterCapabilities.supports(FilterFunction_distance.class));
assertTrue("supports filter", filterCapabilities.supports(FilterFunction_abs.class));
assertTrue("supports geometry", filterCapabilities.supports(FilterFunction_geometryType.class));