prometheus/retrieval/targetmanager_test.go

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// Copyright 2013 Prometheus Team
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package retrieval
import (
"testing"
"time"
"code.google.com/p/goprotobuf/proto"
clientmodel "github.com/prometheus/client_golang/model"
"github.com/prometheus/client_golang/extraction"
pb "github.com/prometheus/prometheus/config/generated"
"github.com/prometheus/prometheus/config"
"github.com/prometheus/prometheus/utility/test"
)
type fakeTarget struct {
scrapeCount int
schedules []time.Time
interval time.Duration
scheduleIndex int
}
func (t fakeTarget) LastError() error {
return nil
}
func (t fakeTarget) Address() string {
return "fake"
}
func (t fakeTarget) GlobalAddress() string {
return t.Address()
}
func (t fakeTarget) BaseLabels() clientmodel.LabelSet {
return clientmodel.LabelSet{}
}
func (t fakeTarget) Interval() time.Duration {
return t.interval
}
func (t *fakeTarget) Scrape(e time.Time, r chan<- *extraction.Result) error {
t.scrapeCount++
return nil
}
func (t fakeTarget) State() TargetState {
return ALIVE
}
func (t *fakeTarget) scheduledFor() (time time.Time) {
time = t.schedules[t.scheduleIndex]
t.scheduleIndex++
return
}
func (t *fakeTarget) Merge(newTarget Target) {}
func testTargetManager(t test.Tester) {
results := make(chan *extraction.Result, 5)
targetManager := NewTargetManager(results, 3)
testJob1 := config.JobConfig{
JobConfig: pb.JobConfig{
Name: proto.String("test_job1"),
ScrapeInterval: proto.String("1m"),
},
}
testJob2 := config.JobConfig{
JobConfig: pb.JobConfig{
Name: proto.String("test_job2"),
ScrapeInterval: proto.String("1m"),
},
}
target1GroupA := &fakeTarget{
schedules: []time.Time{time.Now()},
interval: time.Minute,
}
target2GroupA := &fakeTarget{
schedules: []time.Time{time.Now()},
interval: time.Minute,
}
targetManager.AddTarget(testJob1, target1GroupA)
targetManager.AddTarget(testJob1, target2GroupA)
target1GroupB := &fakeTarget{
schedules: []time.Time{time.Now()},
interval: time.Minute * 2,
}
targetManager.AddTarget(testJob2, target1GroupB)
}
func TestTargetManager(t *testing.T) {
testTargetManager(t)
}
func BenchmarkTargetManager(b *testing.B) {
for i := 0; i < b.N; i++ {
testTargetManager(b)
}
}