mirror of
https://github.com/cubefs/cubefs.git
synced 2026-08-02 02:00:56 +00:00
103 lines
2.6 KiB
Go
103 lines
2.6 KiB
Go
// Copyright 2018 The CubeFS Authors.
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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
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// implied. See the License for the specific language governing
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// permissions and limitations under the License.
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package cachengine
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import (
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"fmt"
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"testing"
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"time"
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"github.com/cubefs/cubefs/util"
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"github.com/stretchr/testify/require"
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)
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var nilFunc = func(v interface{}) error { return nil }
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func TestLRUManyThings(t *testing.T) {
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require.PanicsWithValue(t, "must provide a positive capacity", func() {
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_ = NewCache(0, util.MB*100, time.Hour, nilFunc, nilFunc)
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})
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c := NewCache(10, util.MB*100, time.Hour, nilFunc, nilFunc)
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defer c.Close()
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var (
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k = 1
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v1 = &CacheBlock{blockKey: "block1"}
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v2 = &CacheBlock{blockKey: "block2"}
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)
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require.Equal(t, 0, c.Len())
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actual, err := c.Get(k)
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require.Error(t, err)
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require.Nil(t, actual)
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_, has := c.Peek(k)
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require.False(t, has)
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c.Set(k, v1, time.Hour)
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actual, err = c.Get(k)
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require.NoError(t, err)
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require.Equal(t, actual, v1)
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require.Equal(t, 1, c.Len())
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_, has = c.Peek(k)
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require.True(t, has)
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c.Set(k, v2, time.Minute)
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actual, err = c.Get(k)
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require.NoError(t, err)
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require.Equal(t, actual, v2)
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require.Equal(t, 1, c.Len())
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require.True(t, c.Evict(k))
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actual, err = c.Get(k)
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require.Error(t, err)
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require.Nil(t, actual)
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require.Equal(t, 0, c.Len())
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require.True(t, c.Evict(k))
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}
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func TestLRUCapacity(t *testing.T) {
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called := false
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c := NewCache(2, util.MB*100, time.Hour,
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func(v interface{}) error { called = true; return nil },
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func(v interface{}) error { return fmt.Errorf("close error") })
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c.Set(1, &CacheBlock{blockKey: "block1"}, 0)
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c.Set(2, &CacheBlock{blockKey: "block2"}, 0)
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c.Set(3, &CacheBlock{blockKey: "block3"}, 0)
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require.Equal(t, 2, c.Len())
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_, err := c.Get(1)
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require.Error(t, err)
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require.True(t, called)
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t.Logf("%+v", c.Status())
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require.Error(t, c.Close())
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}
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func TestLRUExpired(t *testing.T) {
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c := NewCache(2, util.MB*100, time.Hour, nilFunc, nilFunc)
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defer c.Close()
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e := -time.Hour
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c.Set(1, &CacheBlock{blockKey: "block1"}, e)
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c.Set(2, &CacheBlock{blockKey: "block2"}, 0)
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require.Equal(t, 2, c.Len())
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_, err := c.Get(1)
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require.Error(t, err)
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require.Equal(t, 1, c.Len())
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c.EvictAll()
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require.Equal(t, 0, c.Len())
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}
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