59 lines
1.6 KiB
Go
59 lines
1.6 KiB
Go
package middlewares
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import (
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"fmt"
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"net/http"
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"net/http/httptest"
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"testing"
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"time"
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"github.com/containous/traefik/testhelpers"
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"github.com/containous/traefik/types"
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"github.com/stvp/go-udp-testing"
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"github.com/urfave/negroni"
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)
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func TestStatsD(t *testing.T) {
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udp.SetAddr(":18125")
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// This is needed to make sure that UDP Listener listens for data a bit longer, otherwise it will quit after a millisecond
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udp.Timeout = 5 * time.Second
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recorder := httptest.NewRecorder()
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InitStatsdClient(&types.Statsd{":18125", "1s"})
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n := negroni.New()
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c := NewStatsD("test")
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defer StopStatsdClient()
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metricsMiddlewareBackend := NewMetricsWrapper(c)
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n.Use(metricsMiddlewareBackend)
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r := http.NewServeMux()
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r.HandleFunc(`/ok`, func(w http.ResponseWriter, r *http.Request) {
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w.WriteHeader(http.StatusOK)
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fmt.Fprintln(w, "ok")
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})
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r.HandleFunc(`/not-found`, func(w http.ResponseWriter, r *http.Request) {
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w.WriteHeader(http.StatusNotFound)
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fmt.Fprintln(w, "not-found")
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})
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n.UseHandler(r)
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req1 := testhelpers.MustNewRequest(http.MethodGet, "http://localhost:3000/ok", nil)
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req2 := testhelpers.MustNewRequest(http.MethodGet, "http://localhost:3000/not-found", nil)
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retryListener := NewMetricsRetryListener(c)
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retryListener.Retried(1)
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retryListener.Retried(2)
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expected := []string{
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// We are only validating counts, as it is nearly impossible to validate latency, since it varies every run
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"traefik.requests.total:2.000000|c\n",
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"traefik.backend.retries.total:2.000000|c\n",
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"traefik.request.duration",
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}
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udp.ShouldReceiveAll(t, expected, func() {
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n.ServeHTTP(recorder, req1)
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n.ServeHTTP(recorder, req2)
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})
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}
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