blob: 193085365921093ea40dcd7b6d070f5a6d78f468 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
// SPDX-License-Identifier: GPL-3.0-or-later
package ticker
import (
"testing"
"time"
)
// TODO: often fails Circle CI (~200-240)
var allowedDelta = 500 * time.Millisecond
func TestTickerParallel(t *testing.T) {
for i := 0; i < 100; i++ {
i := i
go func() {
time.Sleep(time.Second / 100 * time.Duration(i))
TestTicker(t)
}()
}
time.Sleep(4 * time.Second)
}
func TestTicker(t *testing.T) {
tk := New(time.Second)
defer tk.Stop()
prev := time.Now()
for i := 0; i < 3; i++ {
<-tk.C
now := time.Now()
diff := abs(now.Round(time.Second).Sub(now))
if diff >= allowedDelta {
t.Errorf("Ticker is not aligned: expect delta < %v but was: %v (%s)", allowedDelta, diff, now.Format(time.RFC3339Nano))
}
if i > 0 {
dt := now.Sub(prev)
if abs(dt-time.Second) >= allowedDelta {
t.Errorf("Ticker interval: expect delta < %v ns but was: %v", allowedDelta, abs(dt-time.Second))
}
}
prev = now
}
}
func abs(a time.Duration) time.Duration {
if a < 0 {
return -a
}
return a
}
|
