func TestLRUFetch(t *testing.T) {
c := lru.NewSafeLRUCache(cacheSize)
data, err := ioutil.ReadFile("list.txt")
if err != nil {
t.Errorf("err: %s\n", err)
}
str := string(data)
lines := strings.Split(str, "\n")
countAccess := len(lines)
countAccess = 2000
wg := &sync.WaitGroup{}
for j := 0; j < concurrency; j++ {
wg.Add(1)
go func() {
for i := 0; i < countAccess; i++ {
_, err := c.Get(lines[i])
if err != nil {
c.Set(lines[i], &StringObject{s: lines[i]})
}
}
wg.Done()
}()
}
wg.Wait()
c.Check()
for key, obj := range c.Collect() {
if key != obj.(*StringObject).s {
t.Errorf("key does not match the cached value")
}
}
}
func TestLRU(t *testing.T) {
countCleaned := 0
countAdded := 0
countMiss := 0
c := lru.NewSafeLRUCache(cacheSize)
data, err := ioutil.ReadFile("list.txt")
if err != nil {
t.Errorf("err: %s\n", err)
}
str := string(data)
lines := strings.Split(str, "\n")
c.SetCleanFunc(func(obj cache.CacheObject) error {
countCleaned += obj.Size()
return nil
})
countAccess := len(lines)
countAccess = 2000
wg := &sync.WaitGroup{}
for j := 0; j < concurrency; j++ {
wg.Add(1)
go func() {
for i := 0; i < countAccess; i++ {
val, err := c.Get(lines[i])
if err == cache.CacheMiss {
countAdded += len(lines[i])
c.Set(lines[i], &StringObject{s: lines[i]})
countMiss += 1
} else if val.(*StringObject).s != lines[i] {
t.Errorf("key does not match the value")
}
}
wg.Done()
}()
}
wg.Wait()
c.Check()
if countCleaned+c.GetUsage() != countAdded {
t.Errorf("numbers of data items dont match: %d != %d + %d\n", countAdded, countCleaned, c.GetUsage())
}
for key, obj := range c.Collect() {
if key != obj.(*StringObject).s {
t.Errorf("key does not match the cached value")
}
}
println("cache hit rate/usage/# in cache:", c.GetHitRate(), c.GetUsage(), len(c.Collect()))
}