traefik/pkg/metrics/datadog_test.go

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package metrics
import (
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"context"
"net/http"
"strconv"
"testing"
"time"
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"github.com/containous/traefik/v2/pkg/types"
"github.com/stvp/go-udp-testing"
)
func TestDatadog(t *testing.T) {
udp.SetAddr(":18125")
// This is needed to make sure that UDP Listener listens for data a bit longer, otherwise it will quit after a millisecond
udp.Timeout = 5 * time.Second
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datadogRegistry := RegisterDatadog(context.Background(), &types.Datadog{Address: ":18125", PushInterval: types.Duration(time.Second), AddEntryPointsLabels: true, AddServicesLabels: true})
defer StopDatadog()
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if !datadogRegistry.IsEpEnabled() || !datadogRegistry.IsSvcEnabled() {
t.Errorf("DatadogRegistry should return true for IsEnabled()")
}
expected := []string{
// We are only validating counts, as it is nearly impossible to validate latency, since it varies every run
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"traefik.service.request.total:1.000000|c|#service:test,code:404,method:GET\n",
"traefik.service.request.total:1.000000|c|#service:test,code:200,method:GET\n",
"traefik.service.retries.total:2.000000|c|#service:test\n",
"traefik.service.request.duration:10000.000000|h|#service:test,code:200\n",
"traefik.config.reload.total:1.000000|c\n",
"traefik.config.reload.total:1.000000|c|#failure:true\n",
"traefik.entrypoint.request.total:1.000000|c|#entrypoint:test\n",
"traefik.entrypoint.request.duration:10000.000000|h|#entrypoint:test\n",
"traefik.entrypoint.connections.open:1.000000|g|#entrypoint:test\n",
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"traefik.service.server.up:1.000000|g|#service:test,url:http://127.0.0.1,one:two\n",
}
udp.ShouldReceiveAll(t, expected, func() {
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datadogRegistry.ServiceReqsCounter().With("service", "test", "code", strconv.Itoa(http.StatusOK), "method", http.MethodGet).Add(1)
datadogRegistry.ServiceReqsCounter().With("service", "test", "code", strconv.Itoa(http.StatusNotFound), "method", http.MethodGet).Add(1)
datadogRegistry.ServiceReqDurationHistogram().With("service", "test", "code", strconv.Itoa(http.StatusOK)).Observe(10000)
datadogRegistry.ServiceRetriesCounter().With("service", "test").Add(1)
datadogRegistry.ServiceRetriesCounter().With("service", "test").Add(1)
datadogRegistry.ConfigReloadsCounter().Add(1)
datadogRegistry.ConfigReloadsFailureCounter().Add(1)
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datadogRegistry.EntryPointReqsCounter().With("entrypoint", "test").Add(1)
datadogRegistry.EntryPointReqDurationHistogram().With("entrypoint", "test").Observe(10000)
datadogRegistry.EntryPointOpenConnsGauge().With("entrypoint", "test").Set(1)
datadogRegistry.ServiceServerUpGauge().With("service", "test", "url", "http://127.0.0.1", "one", "two").Set(1)
})
}