| // Copyright 2014 Google Inc. All rights reserved. |
| // Use of this source code is governed by the Apache 2.0 |
| // license that can be found in the LICENSE file. |
| |
| // +build !appengine |
| |
| package internal |
| |
| import ( |
| "io" |
| "io/ioutil" |
| "net/http" |
| "net/http/httptest" |
| "testing" |
| ) |
| |
| func TestInstallingHealthChecker(t *testing.T) { |
| try := func(desc string, mux *http.ServeMux, wantCode int, wantBody string) { |
| installHealthChecker(mux) |
| srv := httptest.NewServer(mux) |
| defer srv.Close() |
| |
| resp, err := http.Get(srv.URL + "/_ah/health") |
| if err != nil { |
| t.Errorf("%s: http.Get: %v", desc, err) |
| return |
| } |
| defer resp.Body.Close() |
| body, err := ioutil.ReadAll(resp.Body) |
| if err != nil { |
| t.Errorf("%s: reading body: %v", desc, err) |
| return |
| } |
| |
| if resp.StatusCode != wantCode { |
| t.Errorf("%s: got HTTP %d, want %d", desc, resp.StatusCode, wantCode) |
| return |
| } |
| if wantBody != "" && string(body) != wantBody { |
| t.Errorf("%s: got HTTP body %q, want %q", desc, body, wantBody) |
| return |
| } |
| } |
| |
| // If there's no handlers, or only a root handler, a health checker should be installed. |
| try("empty mux", http.NewServeMux(), 200, "ok") |
| mux := http.NewServeMux() |
| mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) { |
| io.WriteString(w, "root handler") |
| }) |
| try("mux with root handler", mux, 200, "ok") |
| |
| // If there's a custom health check handler, one should not be installed. |
| mux = http.NewServeMux() |
| mux.HandleFunc("/_ah/health", func(w http.ResponseWriter, r *http.Request) { |
| w.WriteHeader(418) |
| io.WriteString(w, "I'm short and stout!") |
| }) |
| try("mux with custom health checker", mux, 418, "I'm short and stout!") |
| } |