func TestOnceEvery(t *testing.T) {
once := New(time.Second)
count := 0
var countMu sync.Mutex
go func() {
for i := 0; i < 100; i++ {
once.Do(func() {
countMu.Lock()
count++
countMu.Unlock()
})
}
}()
time.Sleep(time.Second * 2)
countMu.Lock()
defer countMu.Unlock()
if count != 2 {
t.Errorf("function should be called two times, got '%d'", count)
}
once.Stop()
defer func() {
if err := recover(); err != nil {
t.Errorf("Second stop should not panic: %s", err)
}
}()
once.Stop()
}
