-
Notifications
You must be signed in to change notification settings - Fork 0
/
clock_test.go
122 lines (100 loc) · 3.02 KB
/
clock_test.go
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
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
package gronos
import (
"sync"
"sync/atomic"
"testing"
"time"
)
type mockTicker struct {
tickCount atomic.Int32
}
func (m *mockTicker) Tick() {
m.tickCount.Add(1)
}
func TestClock(t *testing.T) {
t.Run("Basic functionality", func(t *testing.T) {
clock := NewClock(WithInterval(10 * time.Millisecond))
ticker := &mockTicker{}
clock.Add(ticker, NonBlocking)
clock.Start()
time.Sleep(55 * time.Millisecond)
clock.Stop()
expectedTicks := int32(5) // Approximately 5 ticks in 55ms with 10ms interval
actualTicks := ticker.tickCount.Load()
if actualTicks < expectedTicks-1 || actualTicks > expectedTicks+1 {
t.Errorf("Expected around %d ticks, got %d", expectedTicks, actualTicks)
}
})
t.Run("Multiple tickers", func(t *testing.T) {
clock := NewClock(WithInterval(10 * time.Millisecond))
ticker1 := &mockTicker{}
ticker2 := &mockTicker{}
ticker3 := &mockTicker{}
clock.Add(ticker1, NonBlocking)
clock.Add(ticker2, ManagedTimeline)
clock.Add(ticker3, BestEffort)
clock.Start()
time.Sleep(65 * time.Millisecond) // Increased from 55ms to 65ms
clock.Stop()
expectedTicks := int32(6) // Approximately 6 ticks in 65ms with 10ms interval
for i, ticker := range []*mockTicker{ticker1, ticker2, ticker3} {
actualTicks := ticker.tickCount.Load()
if actualTicks < expectedTicks-2 || actualTicks > expectedTicks+2 {
t.Errorf("Ticker %d: Expected around %d ticks, got %d", i+1, expectedTicks, actualTicks)
}
}
})
t.Run("Dynamic interval", func(t *testing.T) {
clock := NewClock(WithInterval(10 * time.Millisecond))
ticker := &mockTicker{}
var lastInterval atomic.Int64
lastInterval.Store(10)
dynamicInterval := func(elapsed time.Duration) time.Duration {
current := lastInterval.Load()
newInterval := current + 5 // Increase by 5ms each time
lastInterval.Store(newInterval)
return time.Duration(current) * time.Millisecond
}
sub := &TickerSubscriber{
Ticker: ticker,
Mode: NonBlocking,
DynamicInterval: dynamicInterval,
}
sub.lastExecTime.Store(time.Now())
clock.subs.Store(ticker, sub)
clock.Start()
time.Sleep(100 * time.Millisecond)
clock.Stop()
actualTicks := ticker.tickCount.Load()
// With the increasing interval, we expect fewer ticks
if actualTicks < 2 || actualTicks > 4 {
t.Errorf("Expected 2-4 ticks, got %d", actualTicks)
}
})
t.Run("Concurrent operations", func(t *testing.T) {
clock := NewClock(WithInterval(1 * time.Millisecond))
const goroutines = 100
var wg sync.WaitGroup
wg.Add(goroutines)
for i := 0; i < goroutines; i++ {
go func() {
defer wg.Done()
ticker := &mockTicker{}
clock.Add(ticker, NonBlocking)
}()
}
clock.Start()
wg.Wait()
time.Sleep(10 * time.Millisecond)
clock.Stop()
var totalTicks int32
clock.subs.Range(func(_, value interface{}) bool {
ticker := value.(*TickerSubscriber).Ticker.(*mockTicker)
totalTicks += ticker.tickCount.Load()
return true
})
if totalTicks == 0 {
t.Error("Expected some ticks to occur, but none were recorded")
}
})
}