mirror of https://github.com/knative/pkg.git
78 lines
2.6 KiB
Go
78 lines
2.6 KiB
Go
/*
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Copyright 2019 The Knative Authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package metrics
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import (
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"testing"
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"go.opencensus.io/stats/view"
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kubeinformers "k8s.io/client-go/informers"
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kubefake "k8s.io/client-go/kubernetes/fake"
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"k8s.io/client-go/tools/cache"
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"knative.dev/pkg/metrics/metricstest"
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)
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func TestReflectorMetrics(t *testing.T) {
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rp := &ReflectorProvider{
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ItemsInList: newFloat64("items_in_list"),
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ItemsInMatch: newFloat64("items_in_match"),
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ItemsInWatch: newFloat64("items_in_watch"),
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LastResourceVersion: newFloat64("last_resource_version"),
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ListDuration: newFloat64("list_duration"),
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Lists: newInt64("lists"),
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ShortWatches: newInt64("short_watches"),
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WatchDuration: newFloat64("watch_duration"),
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Watches: newInt64("watches"),
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}
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cache.SetReflectorMetricsProvider(rp)
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// Reset the metrics configuration to avoid leaked state from other tests.
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setCurMetricsConfig(nil)
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views := rp.DefaultViews()
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if got, want := len(views), 9; got != want {
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t.Errorf("len(DefaultViews()) = %d, want %d", got, want)
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}
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if err := view.Register(views...); err != nil {
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t.Errorf("view.Register() = %v", err)
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}
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defer view.Unregister(views...)
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metricstest.CheckStatsNotReported(t, "items_in_list", "items_in_match", "items_in_watch",
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"last_resource_version", "list_duration", "lists", "short_watches", "watch_duration", "watches")
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stopCh := make(chan struct{})
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defer close(stopCh)
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fake := kubefake.NewSimpleClientset()
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factory := kubeinformers.NewSharedInformerFactory(fake, 0)
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endpoints := factory.Core().V1().Endpoints()
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informer := endpoints.Informer()
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go informer.Run(stopCh)
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if ok := cache.WaitForCacheSync(stopCh, informer.HasSynced); !ok {
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t.Error("failed to wait for endpoints cache to sync")
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}
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// TODO(mattmoor): The reflector metrics don't seem to be hooked up to anything,
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// so nothing is reported... (－‸ლ)
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metricstest.CheckStatsNotReported(t, "items_in_list", "items_in_match", "items_in_watch",
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"last_resource_version", "list_duration", "lists", "short_watches", "watch_duration", "watches")
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}
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