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Extract metrics to own package and refactor implementations

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This commit is contained in:
Marco Jantke 2017-08-23 20:46:03 +02:00 • committed by Traefiker
parent c1b5b740ff
commit e6c2040ea8
19 changed files with 599 additions and 797 deletions
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26
middlewares/metrics_test.go
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@ -1,18 +1,15 @@
package middlewares
import (
"reflect"
"testing"
"github.com/go-kit/kit/metrics"
)
func TestMetricsRetryListener(t *testing.T) {
// nil implementation, nothing should fail
retryListener := NewMetricsRetryListener(nil)
retryListener.Retried(1)
retryMetrics := newCollectingMetrics()
retryListener = NewMetricsRetryListener(retryMetrics)
retryMetrics := newCollectingRetryMetrics()
retryListener := NewMetricsRetryListener(retryMetrics, "backendName")
retryListener.Retried(1)
retryListener.Retried(2)
@ -20,27 +17,34 @@ func TestMetricsRetryListener(t *testing.T) {
if retryMetrics.retryCounter.counterValue != wantCounterValue {
t.Errorf("got counter value of %d, want %d", retryMetrics.retryCounter.counterValue, wantCounterValue)
}
wantLabelValues := []string{"backend", "backendName"}
if !reflect.DeepEqual(retryMetrics.retryCounter.lastLabelValues, wantLabelValues) {
t.Errorf("wrong label values %v used, want %v", retryMetrics.retryCounter.lastLabelValues, wantLabelValues)
}
}
// collectingRetryMetrics is an implementation of the RetryMetrics interface that can be used inside tests to collect the times Add() was called.
// collectingRetryMetrics is an implementation of the retryMetrics interface that can be used inside tests to collect the times Add() was called.
type collectingRetryMetrics struct {
retryCounter *collectingCounter
}
func newCollectingMetrics() collectingRetryMetrics {
func newCollectingRetryMetrics() collectingRetryMetrics {
return collectingRetryMetrics{retryCounter: &collectingCounter{}}
}
func (metrics collectingRetryMetrics) getRetryCounter() metrics.Counter {
func (metrics collectingRetryMetrics) RetriesCounter() metrics.Counter {
return metrics.retryCounter
}
type collectingCounter struct {
counterValue float64
counterValue float64
lastLabelValues []string
}
func (c *collectingCounter) With(labelValues ...string) metrics.Counter {
panic("collectingCounter.With not implemented!")
c.lastLabelValues = labelValues
return c
}
func (c *collectingCounter) Add(delta float64) {