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test: thread safe lru #137

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test: thread safe lru #137

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27 changes: 27 additions & 0 deletions lru_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@
package lru

import (
"sync"
"testing"
)

Expand Down Expand Up @@ -66,6 +67,32 @@ func BenchmarkLRU_Freq(b *testing.B) {
b.Logf("hit: %d miss: %d ratio: %f", hit, miss, float64(hit)/float64(hit+miss))
}

func TestThreadSafeLRU(t *testing.T) {
var (
wg sync.WaitGroup
count = 100
size = 50
)

l, err := New[int, int](size)
if err != nil {
t.Fatalf("err: %v", err)
}

for i := 0; i < count; i++ {
i := i
wg.Add(1)
go func() {
defer wg.Done()
l.Add(i, i)
}()
}
wg.Wait()
if l.Len() != size {
t.Fatalf("bad len: %v", l.Len())
}
}

func TestLRU(t *testing.T) {
evictCounter := 0
onEvicted := func(k int, v int) {
Expand Down