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122 lines
3.7 KiB
Go
122 lines
3.7 KiB
Go
package alerting
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// import (
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// "testing"
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// "time"
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//
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// "github.com/benbjohnson/clock"
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// )
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//
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// func inspectTick(tick time.Time, last time.Time, offset time.Duration, t *testing.T) {
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// if !tick.Equal(last.Add(time.Duration(1) * time.Second)) {
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// t.Fatalf("expected a tick 1 second more than prev, %s. got: %s", last, tick)
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// }
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// }
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//
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// returns the new last tick seen
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// func assertAdvanceUntil(ticker *Ticker, last, desiredLast time.Time, offset, wait time.Duration, t *testing.T) time.Time {
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// for {
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// select {
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// case tick := <-ticker.C:
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// inspectTick(tick, last, offset, t)
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// last = tick
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// case <-time.NewTimer(wait).C:
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// if last.Before(desiredLast) {
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// t.Fatalf("waited %s for ticker to advance to %s, but only went up to %s", wait, desiredLast, last)
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// }
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// if last.After(desiredLast) {
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// t.Fatalf("timer advanced too far. should only have gone up to %s, but it went up to %s", desiredLast, last)
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// }
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// return last
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// }
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// }
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// }
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//
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// func assertNoAdvance(ticker *Ticker, desiredLast time.Time, wait time.Duration, t *testing.T) {
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// for {
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// select {
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// case tick := <-ticker.C:
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// t.Fatalf("timer should have stayed at %s, instead it advanced to %s", desiredLast, tick)
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// case <-time.NewTimer(wait).C:
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// return
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// }
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// }
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// }
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//
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// func TestTickerRetro1Hour(t *testing.T) {
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// offset := time.Duration(10) * time.Second
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// last := time.Unix(0, 0)
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// mock := clock.NewMock()
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// mock.Add(time.Duration(1) * time.Hour)
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// desiredLast := mock.Now().Add(-offset)
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// ticker := NewTicker(last, offset, mock)
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//
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// last = assertAdvanceUntil(ticker, last, desiredLast, offset, time.Duration(10)*time.Millisecond, t)
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// assertNoAdvance(ticker, last, time.Duration(500)*time.Millisecond, t)
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//
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// }
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//
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// func TestAdvanceWithUpdateOffset(t *testing.T) {
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// offset := time.Duration(10) * time.Second
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// last := time.Unix(0, 0)
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// mock := clock.NewMock()
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// mock.Add(time.Duration(1) * time.Hour)
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// desiredLast := mock.Now().Add(-offset)
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// ticker := NewTicker(last, offset, mock)
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//
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// last = assertAdvanceUntil(ticker, last, desiredLast, offset, time.Duration(10)*time.Millisecond, t)
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// assertNoAdvance(ticker, last, time.Duration(500)*time.Millisecond, t)
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//
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// // lowering offset should see a few more ticks
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// offset = time.Duration(5) * time.Second
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// ticker.updateOffset(offset)
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// desiredLast = mock.Now().Add(-offset)
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// last = assertAdvanceUntil(ticker, last, desiredLast, offset, time.Duration(9)*time.Millisecond, t)
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// assertNoAdvance(ticker, last, time.Duration(500)*time.Millisecond, t)
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//
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// // advancing clock should see even more ticks
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// mock.Add(time.Duration(1) * time.Hour)
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// desiredLast = mock.Now().Add(-offset)
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// last = assertAdvanceUntil(ticker, last, desiredLast, offset, time.Duration(8)*time.Millisecond, t)
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// assertNoAdvance(ticker, last, time.Duration(500)*time.Millisecond, t)
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//
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// }
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//
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// func getCase(lastSeconds, offsetSeconds int) (time.Time, time.Duration) {
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// last := time.Unix(int64(lastSeconds), 0)
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// offset := time.Duration(offsetSeconds) * time.Second
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// return last, offset
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// }
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//
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// func TestTickerNoAdvance(t *testing.T) {
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//
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// // it's 00:01:00 now. what are some cases where we don't want the ticker to advance?
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// mock := clock.NewMock()
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// mock.Add(time.Duration(60) * time.Second)
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//
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// type Case struct {
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// last int
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// offset int
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// }
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//
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// // note that some cases add up to now, others go into the future
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// cases := []Case{
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// {50, 10},
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// {50, 30},
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// {59, 1},
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// {59, 10},
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// {59, 30},
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// {60, 1},
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// {60, 10},
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// {60, 30},
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// {90, 1},
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// {90, 10},
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// {90, 30},
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// }
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// for _, c := range cases {
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// last, offset := getCase(c.last, c.offset)
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// ticker := NewTicker(last, offset, mock)
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// assertNoAdvance(ticker, last, time.Duration(500)*time.Millisecond, t)
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// }
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// }
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