github.com/galamsiva2020/kubernetes-heapster-monitoring@v0.0.0-20210823134957-3c1baa7c1e70/metrics/manager/manager_test.go (about) 1 // Copyright 2015 Google Inc. All Rights Reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 package manager 16 17 import ( 18 "testing" 19 "time" 20 21 "k8s.io/heapster/metrics/core" 22 "k8s.io/heapster/metrics/util" 23 ) 24 25 func TestFlow(t *testing.T) { 26 source := util.NewDummyMetricsSource("src", time.Millisecond) 27 sink := util.NewDummySink("sink", time.Millisecond) 28 processor := util.NewDummyDataProcessor(time.Millisecond) 29 30 manager, _ := NewManager(source, []core.DataProcessor{processor}, sink, time.Second, time.Millisecond, 1) 31 manager.Start() 32 33 // 4-5 cycles 34 time.Sleep(time.Millisecond * 4500) 35 manager.Stop() 36 37 if sink.GetExportCount() < 4 || sink.GetExportCount() > 5 { 38 t.Fatalf("Wrong number of exports executed: %d", sink.GetExportCount()) 39 } 40 } 41 42 func TestThrottling(t *testing.T) { 43 source := util.NewDummyMetricsSource("src", time.Millisecond) 44 sink := util.NewDummySink("sink", 4*time.Second) 45 processor := util.NewDummyDataProcessor(5 * time.Millisecond) 46 47 manager, _ := NewManager(source, []core.DataProcessor{processor}, sink, time.Second, time.Millisecond, 1) 48 manager.Start() 49 50 // 4-5 cycles 51 time.Sleep(time.Millisecond * 9500) 52 manager.Stop() 53 54 if sink.GetExportCount() < 2 || sink.GetExportCount() > 3 { 55 t.Fatalf("Wrong number of exports executed: %d", sink.GetExportCount()) 56 } 57 }