@Test
public void testDefaultRateLimitFilter() {

    RateLimitFilter filter = new RateLimitFilter();
    assertNotNull(filter);
    MockHttpServletRequest request =  new MockHttpServletRequest();
    request.setMethod("GET");
    request.setRequestURI("/");
    
    MockHttpServletResponse response =  new MockHttpServletResponse();
    RateLimitFilterChain chain = new RateLimitFilterChain();
    try {
        filter.doFilter(request, response, chain);
    } catch (IOException | ServletException e) {
        fail();
    }
    assertEquals(response.getStatus(), 200);
}