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package engine
import (
"sync"
"testing"
)
func TestConcurrentTicksAreSerialized(t *testing.T) {
e := New()
count := 0
e.Subscribe(1, func() bool {
count++ // safe only when callbacks have a single owner
return true
})
var wg sync.WaitGroup
for i := 0; i < 8; i++ {
wg.Add(1)
go func() {
defer wg.Done()
for j := 0; j < 100; j++ {
e.Tick()
}
}()
}
wg.Wait()
if count != 800 {
t.Fatalf("lost ticks: got %d, want 800", count)
}
}
func TestStopIsIdempotentAndRestartable(t *testing.T) {
e := New()
e.Stop()
defer e.Stop()
for i := 0; i < 100; i++ {
e.Start(60000)
e.Stop()
e.Stop()
}
}
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