| 31 | ) |
| 32 | |
| 33 | func TestAtomicConditionals(t *testing.T) { |
| 34 | var release sync.WaitGroup |
| 35 | release.Add(1) |
| 36 | |
| 37 | var wg sync.WaitGroup |
| 38 | |
| 39 | var increaseFailures sync.Map |
| 40 | var decreaseFailures sync.Map |
| 41 | |
| 42 | value := int32(5_000) |
| 43 | lowerBound := int32(100) |
| 44 | upperBound := int32(10_000) |
| 45 | for k := range 100_000 { |
| 46 | |
| 47 | wg.Add(1) |
| 48 | go func() { |
| 49 | release.Wait() |
| 50 | defer wg.Done() |
| 51 | if workerpool.IncrementIfSmallerThan(&value, upperBound) { |
| 52 | if v := atomic.LoadInt32(&value); v > upperBound { |
| 53 | increaseFailures.Store(k, v) |
| 54 | } |
| 55 | } |
| 56 | }() |
| 57 | |
| 58 | wg.Add(1) |
| 59 | go func() { |
| 60 | release.Wait() |
| 61 | defer wg.Done() |
| 62 | if workerpool.DecrementIfGreaterThan(&value, lowerBound) { |
| 63 | if v := atomic.LoadInt32(&value); v < lowerBound { |
| 64 | decreaseFailures.Store(k, v) |
| 65 | } |
| 66 | } |
| 67 | }() |
| 68 | |
| 69 | wg.Add(1) |
| 70 | go func() { |
| 71 | release.Wait() |
| 72 | defer wg.Done() |
| 73 | if v := atomic.LoadInt32(&value); v > upperBound { |
| 74 | increaseFailures.Store(k, v) |
| 75 | } |
| 76 | if v := atomic.LoadInt32(&value); v < lowerBound { |
| 77 | decreaseFailures.Store(k, v) |
| 78 | } |
| 79 | }() |
| 80 | } |
| 81 | |
| 82 | release.Done() |
| 83 | wg.Wait() |
| 84 | |
| 85 | increaseFailures.Range(func(ki any, vi any) bool { |
| 86 | k, v := ki.(int), vi.(int32) |
| 87 | t.Errorf("Value %v exceeded upper bound %v in test %v", v, upperBound, k) |
| 88 | return true |
| 89 | }) |
| 90 | |