Properties props = new Properties();
props.put("ip.blacklist", "192.168.1.8,192.168.1.10");
IpBlacklistFilter filter = new IpBlacklistFilter(props);
assertNotNull(filter);
MockFilterChain filterChain = new MockFilterChain();
filterChain.addFilter(filter);
TestServlet testServlet = new TestServlet();
filterChain.setServlet(testServlet);
MockHttpServletRequest request = new MockHttpServletRequest();
request.setRemoteAddr("192.168.1.8");
MockHttpServletResponse response = new MockHttpServletResponse();