mirror of
https://github.com/EchoVault/SugarDB.git
synced 2025-10-05 16:06:57 +08:00
67 lines
1.6 KiB
Go
67 lines
1.6 KiB
Go
// Copyright 2024 Kelvin Clement Mwinuka
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package eviction_test
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import (
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"container/heap"
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"github.com/echovault/echovault/internal/eviction"
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"sync"
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"testing"
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)
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func Test_CacheLFU(t *testing.T) {
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entries := []struct {
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key string
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access int
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}{
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{key: "key1", access: 1},
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{key: "key2", access: 5},
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{key: "key5", access: 2},
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{key: "key3", access: 4},
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{key: "key4", access: 3},
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}
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cache := eviction.NewCacheLFU()
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mut := sync.RWMutex{}
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wg := sync.WaitGroup{}
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for _, entry := range entries {
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wg.Add(1)
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go func(entry struct {
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key string
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access int
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}) {
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for i := 0; i < entry.access; i++ {
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mut.Lock()
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cache.Update(entry.key)
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mut.Unlock()
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}
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wg.Done()
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}(entry)
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}
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wg.Wait()
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expectedKeys := []string{"key1", "key5", "key4", "key3", "key2"}
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mut.Lock()
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for i := 0; i < len(expectedKeys); i++ {
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key := heap.Pop(cache).(string)
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if key != expectedKeys[i] {
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t.Errorf("expected popped key at index %d to be %s, got %s", i, expectedKeys[i], key)
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}
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}
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mut.Unlock()
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}
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