(t *testing.T)
| 21 | ) |
| 22 | |
| 23 | func TestPrometheus(t *testing.T) { |
| 24 | t.Parallel() |
| 25 | |
| 26 | t.Run("All", func(t *testing.T) { |
| 27 | t.Parallel() |
| 28 | req := httptest.NewRequest("GET", "/", nil) |
| 29 | req = req.WithContext(context.WithValue(req.Context(), chi.RouteCtxKey, chi.NewRouteContext())) |
| 30 | res := &tracing.StatusWriter{ResponseWriter: httptest.NewRecorder()} |
| 31 | reg := prometheus.NewRegistry() |
| 32 | httpmw.HTTPRoute(httpmw.Prometheus(reg)(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { |
| 33 | w.WriteHeader(http.StatusOK) |
| 34 | }))).ServeHTTP(res, req) |
| 35 | metrics, err := reg.Gather() |
| 36 | require.NoError(t, err) |
| 37 | require.Greater(t, len(metrics), 0) |
| 38 | }) |
| 39 | |
| 40 | t.Run("Concurrent", func(t *testing.T) { |
| 41 | t.Parallel() |
| 42 | ctx, cancel := context.WithTimeout(context.Background(), testutil.WaitShort) |
| 43 | defer cancel() |
| 44 | |
| 45 | reg := prometheus.NewRegistry() |
| 46 | promMW := httpmw.Prometheus(reg) |
| 47 | |
| 48 | // Create a test handler to simulate a WebSocket connection |
| 49 | testHandler := http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) { |
| 50 | conn, err := websocket.Accept(rw, r, nil) |
| 51 | if !assert.NoError(t, err, "failed to accept websocket") { |
| 52 | return |
| 53 | } |
| 54 | defer conn.Close(websocket.StatusGoingAway, "") |
| 55 | }) |
| 56 | |
| 57 | wrappedHandler := promMW(testHandler) |
| 58 | |
| 59 | r := chi.NewRouter() |
| 60 | r.Use(tracing.StatusWriterMiddleware, httpmw.HTTPRoute, promMW) |
| 61 | r.Get("/api/v2/build/{build}/logs", func(rw http.ResponseWriter, r *http.Request) { |
| 62 | wrappedHandler.ServeHTTP(rw, r) |
| 63 | }) |
| 64 | |
| 65 | srv := httptest.NewServer(r) |
| 66 | defer srv.Close() |
| 67 | // nolint: bodyclose |
| 68 | conn, _, err := websocket.Dial(ctx, srv.URL+"/api/v2/build/1/logs", nil) |
| 69 | require.NoError(t, err, "failed to dial WebSocket") |
| 70 | defer conn.Close(websocket.StatusNormalClosure, "") |
| 71 | |
| 72 | metrics, err := reg.Gather() |
| 73 | require.NoError(t, err) |
| 74 | require.Greater(t, len(metrics), 0) |
| 75 | metricLabels := getMetricLabels(metrics) |
| 76 | |
| 77 | concurrentWebsockets, ok := metricLabels["coderd_api_concurrent_websockets"] |
| 78 | require.True(t, ok, "coderd_api_concurrent_websockets metric not found") |
| 79 | require.Equal(t, "/api/v2/build/{build}/logs", concurrentWebsockets["path"]) |
| 80 | }) |
nothing calls this directly
no test coverage detected