Now the real test for https://plus.google.com/101022900381697718949/posts/eWy6DjFJ6uW

mux_test.go

@@ -657,24 +657,32 @@ func testRoute(t *testing.T, test routeTest) {
 }
 
 // https://plus.google.com/101022900381697718949/posts/eWy6DjFJ6uW
-func testSubrouterHeader(t *testing.T, test routeTest) {
+func TestSubrouterHeader(t *testing.T) {
-	func1 := func(http.ResponseWriter, *http.Request) {}
+	expected := "func1 response"
+	func1 := func(w http.ResponseWriter, r *http.Request) {
+		fmt.Fprint(w, expected)
+	}
 	func2 := func(http.ResponseWriter, *http.Request) {}
 
 	r := NewRouter()
-	s := r.Headers("SomeSpecialHeader").Subrouter()
+	s := r.Headers("SomeSpecialHeader", "").Subrouter()
 	s.HandleFunc("/", func1).Name("func1")
 	r.HandleFunc("/", func2).Name("func2")
 
 	req, _ := http.NewRequest("GET", "http://localhost/", nil)
-	req.Header.Add("SomeSpecialHeader", "")
+	req.Header.Add("SomeSpecialHeader", "foo")
 	match := new(RouteMatch)
 	matched := r.Match(req, match)
 	if !matched {
 		t.Errorf("Should match request")
 	}
 	if match.Route.GetName() != "func1" {
-		t.Errorf("Expecting func1 handler")
+		t.Errorf("Expecting func1 handler, got %s", match.Route.GetName())
+	}
+	resp := NewRecorder()
+	match.Handler.ServeHTTP(resp, req)
+	if resp.Body.String() != expected {
+		t.Errorf("Expecting %q", expected)
 	}
 }