Gorilla mux returns blank url params during tests

Question

The code below extracts the url value when running the appengine server, but during tests the url var are blank.

Any ideas to why this would be?

func init() {
    s := scheduleApi{}
    r := NewAERouter()

    r.HandleFunc("/leagues/{leagueId}/schedule", s.get).Methods("GET")

    http.Handle("/", r.router)
}

func (s *scheduleApi) get(c appengine.Context, w http.ResponseWriter, r *http.Request) {

    params := mux.Vars(r)

    fmt.Printf("=======================\n")
    fmt.Printf("URL => %v\n", r.URL)
    fmt.Printf("params => %v\n", params)               // empty map
    fmt.Printf("leageid => %v\n", params["leagueId"])  // blank
    fmt.Printf("=======================\n")
}

Test

func Test_Get(t *testing.T) {
    r, _ := http.NewRequest("GET", "/leagues/99/schedule", nil)
    w := httptest.NewRecorder()

    handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
        s := scheduleApi{}
        c, _ := aetest.NewContext(nil)
        s.get(c, w, r)
    })
    handler.ServeHTTP(w, r)

            //...
}

Answer 1

Gorilla mux needs to be included in your test. In your app code you are setting up the route using mux but in your test you are not.

Here is a question dealing with this issue on go-nuts.