fakeclock.go 1.1 KB

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  1. /*
  2. Copyright © The ESO Authors
  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. https://www.apache.org/licenses/LICENSE-2.0
  7. Unless required by applicable law or agreed to in writing, software
  8. distributed under the License is distributed on an "AS IS" BASIS,
  9. WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  10. See the License for the specific language governing permissions and
  11. limitations under the License.
  12. */
  13. package clock
  14. import "time"
  15. // FakeClock provides a clock implementation with manually controlled time for testing.
  16. type FakeClock struct {
  17. now time.Time
  18. }
  19. // NewFakeClock creates a new FakeClock instance initialized to current time.
  20. func NewFakeClock() *FakeClock {
  21. return &FakeClock{
  22. now: time.Now(),
  23. }
  24. }
  25. // CurrentTime returns the current fake time.
  26. func (c *FakeClock) CurrentTime() time.Time {
  27. return c.now
  28. }
  29. // AddDuration advances the fake clock by the specified duration.
  30. func (c *FakeClock) AddDuration(duration time.Duration) {
  31. c.now = c.now.Add(duration)
  32. }