1 /* 2 Copyright 2021 The Kubernetes Authors. 3 4 Licensed under the Apache License, Version 2.0 (the "License"); 5 you may not use this file except in compliance with the License. 6 You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10 Unless required by applicable law or agreed to in writing, software 11 distributed under the License is distributed on an "AS IS" BASIS, 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 See the License for the specific language governing permissions and 14 limitations under the License. 15 */ 16 17 package testing 18 19 import ( 20 "time" 21 22 "k8s.io/utils/clock" 23 ) 24 25 var ( 26 _ = clock.PassiveClock(&SimpleIntervalClock{}) 27 ) 28 29 // SimpleIntervalClock implements clock.PassiveClock, but each invocation of Now steps the clock forward the specified duration 30 type SimpleIntervalClock struct { 31 Time time.Time 32 Duration time.Duration 33 } 34 35 // Now returns i's time. 36 func (i *SimpleIntervalClock) Now() time.Time { 37 i.Time = i.Time.Add(i.Duration) 38 return i.Time 39 } 40 41 // Since returns time since the time in i. 42 func (i *SimpleIntervalClock) Since(ts time.Time) time.Duration { 43 return i.Time.Sub(ts) 44 } 45