@Test
public void filterDumpsResponse() {
MockHttpServletRequest request = new MockHttpServletRequest("GET", "/foo");
MockHttpServletResponse response = new MockHttpServletResponse();
response.addHeader("Content-Type", "application/json");
Map<String, Object> trace = this.filter.getTrace(request);
this.filter.enhanceTrace(trace, response);
@SuppressWarnings("unchecked")
Map<String, Object> map = (Map<String, Object>) trace.get("headers");
assertEquals("{Content-Type=application/json, status=200}", map.get("response")