mirror of
https://github.com/rclone/rclone.git
synced 2024-11-25 17:57:44 +08:00
603 lines
16 KiB
Go
603 lines
16 KiB
Go
package vfscache
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import (
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"context"
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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"sort"
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"testing"
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"time"
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"github.com/djherbis/times"
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_ "github.com/rclone/rclone/backend/local" // import the local backend
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"github.com/rclone/rclone/fstest"
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"github.com/rclone/rclone/vfs/vfscommon"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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// TestMain drives the tests
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func TestMain(m *testing.M) {
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fstest.TestMain(m)
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}
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// convert c.item to a string
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func itemAsString(c *Cache) []string {
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c.itemMu.Lock()
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defer c.itemMu.Unlock()
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var out []string
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for name, item := range c.item {
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out = append(out, fmt.Sprintf("name=%q isFile=%v opens=%d size=%d", filepath.ToSlash(name), item.isFile, item.opens, item.size))
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}
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sort.Strings(out)
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return out
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}
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func TestCacheNew(t *testing.T) {
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r := fstest.NewRun(t)
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defer r.Finalise()
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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// Disable the cache cleaner as it interferes with these tests
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opt := vfscommon.DefaultOpt
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opt.CachePollInterval = 0
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c, err := New(ctx, r.Fremote, &opt)
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require.NoError(t, err)
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assert.Contains(t, c.root, "vfs")
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assert.Contains(t, c.fcache.Root(), filepath.Base(r.Fremote.Root()))
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assert.Equal(t, []string(nil), itemAsString(c))
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// mkdir
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p, err := c.Mkdir("potato")
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require.NoError(t, err)
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assert.Equal(t, "potato", filepath.Base(p))
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assert.Equal(t, []string{
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`name="" isFile=false opens=0 size=0`,
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}, itemAsString(c))
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fi, err := os.Stat(filepath.Dir(p))
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require.NoError(t, err)
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assert.True(t, fi.IsDir())
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// get
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item := c.get("potato")
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item2 := c.get("potato")
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assert.Equal(t, item, item2)
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assert.WithinDuration(t, time.Now(), item.atime, time.Second)
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// updateTime
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//.. before
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t1 := time.Now().Add(-60 * time.Minute)
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c.updateStat("potato", t1, 0)
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item = c.get("potato")
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assert.NotEqual(t, t1, item.atime)
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assert.Equal(t, 0, item.opens)
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//..after
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t2 := time.Now().Add(60 * time.Minute)
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c.updateStat("potato", t2, 0)
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item = c.get("potato")
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assert.Equal(t, t2, item.atime)
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assert.Equal(t, 0, item.opens)
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// open
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assert.Equal(t, []string{
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`name="" isFile=false opens=0 size=0`,
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`name="potato" isFile=true opens=0 size=0`,
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}, itemAsString(c))
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c.Open("/potato")
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assert.Equal(t, []string{
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`name="" isFile=false opens=1 size=0`,
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`name="potato" isFile=true opens=1 size=0`,
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}, itemAsString(c))
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item = c.get("potato")
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assert.WithinDuration(t, time.Now(), item.atime, time.Second)
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assert.Equal(t, 1, item.opens)
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// write the file
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err = ioutil.WriteFile(p, []byte("hello"), 0600)
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require.NoError(t, err)
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// read its atime
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fi, err = os.Stat(p)
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assert.NoError(t, err)
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atime := times.Get(fi).AccessTime()
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// updateAtimes
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item = c.get("potato")
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item.atime = time.Now().Add(-24 * time.Hour)
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err = c.updateStats()
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require.NoError(t, err)
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assert.Equal(t, []string{
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`name="" isFile=false opens=1 size=0`,
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`name="potato" isFile=true opens=1 size=5`,
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}, itemAsString(c))
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item = c.get("potato")
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assert.Equal(t, atime, item.atime)
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// updateAtimes - not in the cache
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oldItem := item
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c.itemMu.Lock()
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delete(c.item, "potato") // remove from cache
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c.itemMu.Unlock()
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err = c.updateStats()
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require.NoError(t, err)
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assert.Equal(t, []string{
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`name="" isFile=false opens=1 size=0`,
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`name="potato" isFile=true opens=0 size=5`,
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}, itemAsString(c))
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item = c.get("potato")
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assert.Equal(t, atime, item.atime)
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c.itemMu.Lock()
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c.item["potato"] = oldItem // restore to cache
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c.itemMu.Unlock()
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// try purging with file open
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c.purgeOld(10 * time.Second)
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_, err = os.Stat(p)
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assert.NoError(t, err)
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// close
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assert.Equal(t, []string{
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`name="" isFile=false opens=1 size=0`,
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`name="potato" isFile=true opens=1 size=5`,
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}, itemAsString(c))
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c.updateStat("potato", t2, 6)
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assert.Equal(t, []string{
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`name="" isFile=false opens=1 size=0`,
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`name="potato" isFile=true opens=1 size=6`,
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}, itemAsString(c))
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c.Close("potato/")
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assert.Equal(t, []string{
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`name="" isFile=false opens=0 size=0`,
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`name="potato" isFile=true opens=0 size=5`,
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}, itemAsString(c))
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item = c.get("potato")
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assert.WithinDuration(t, time.Now(), item.atime, time.Second)
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assert.Equal(t, 0, item.opens)
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// try purging with file closed
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c.purgeOld(10 * time.Second)
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// ...nothing should happen
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_, err = os.Stat(p)
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assert.NoError(t, err)
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//.. purge again with -ve age
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c.purgeOld(-10 * time.Second)
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_, err = os.Stat(p)
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assert.True(t, os.IsNotExist(err))
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// clean - have tested the internals already
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c.clean()
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// cleanup
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err = c.CleanUp()
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require.NoError(t, err)
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_, err = os.Stat(c.root)
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assert.True(t, os.IsNotExist(err))
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}
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func TestCacheOpens(t *testing.T) {
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r := fstest.NewRun(t)
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defer r.Finalise()
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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c, err := New(ctx, r.Fremote, &vfscommon.DefaultOpt)
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require.NoError(t, err)
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assert.Equal(t, []string(nil), itemAsString(c))
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c.Open("potato")
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assert.Equal(t, []string{
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`name="" isFile=false opens=1 size=0`,
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`name="potato" isFile=true opens=1 size=0`,
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}, itemAsString(c))
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c.Open("potato")
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assert.Equal(t, []string{
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`name="" isFile=false opens=2 size=0`,
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`name="potato" isFile=true opens=2 size=0`,
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}, itemAsString(c))
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c.Close("potato")
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assert.Equal(t, []string{
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`name="" isFile=false opens=1 size=0`,
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`name="potato" isFile=true opens=1 size=0`,
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}, itemAsString(c))
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c.Close("potato")
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assert.Equal(t, []string{
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`name="" isFile=false opens=0 size=0`,
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`name="potato" isFile=true opens=0 size=0`,
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}, itemAsString(c))
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c.Open("potato")
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c.Open("a//b/c/d/one")
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c.Open("a/b/c/d/e/two")
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c.Open("a/b/c/d/e/f/three")
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assert.Equal(t, []string{
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`name="" isFile=false opens=4 size=0`,
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`name="a" isFile=false opens=3 size=0`,
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`name="a/b" isFile=false opens=3 size=0`,
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`name="a/b/c" isFile=false opens=3 size=0`,
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`name="a/b/c/d" isFile=false opens=3 size=0`,
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`name="a/b/c/d/e" isFile=false opens=2 size=0`,
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`name="a/b/c/d/e/f" isFile=false opens=1 size=0`,
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`name="a/b/c/d/e/f/three" isFile=true opens=1 size=0`,
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`name="a/b/c/d/e/two" isFile=true opens=1 size=0`,
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`name="a/b/c/d/one" isFile=true opens=1 size=0`,
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`name="potato" isFile=true opens=1 size=0`,
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}, itemAsString(c))
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c.Close("potato")
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c.Close("a/b/c/d/one")
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c.Close("a/b/c/d/e/two")
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c.Close("a/b/c//d/e/f/three")
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assert.Equal(t, []string{
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`name="" isFile=false opens=0 size=0`,
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`name="a" isFile=false opens=0 size=0`,
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`name="a/b" isFile=false opens=0 size=0`,
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`name="a/b/c" isFile=false opens=0 size=0`,
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`name="a/b/c/d" isFile=false opens=0 size=0`,
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`name="a/b/c/d/e" isFile=false opens=0 size=0`,
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`name="a/b/c/d/e/f" isFile=false opens=0 size=0`,
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`name="a/b/c/d/e/f/three" isFile=true opens=0 size=0`,
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`name="a/b/c/d/e/two" isFile=true opens=0 size=0`,
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`name="a/b/c/d/one" isFile=true opens=0 size=0`,
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`name="potato" isFile=true opens=0 size=0`,
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}, itemAsString(c))
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}
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// test the open, mkdir, purge, close, purge sequence
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func TestCacheOpenMkdir(t *testing.T) {
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r := fstest.NewRun(t)
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defer r.Finalise()
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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// Disable the cache cleaner as it interferes with these tests
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opt := vfscommon.DefaultOpt
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opt.CachePollInterval = 0
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c, err := New(ctx, r.Fremote, &opt)
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require.NoError(t, err)
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// open
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c.Open("sub/potato")
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assert.Equal(t, []string{
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`name="" isFile=false opens=1 size=0`,
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`name="sub" isFile=false opens=1 size=0`,
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`name="sub/potato" isFile=true opens=1 size=0`,
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}, itemAsString(c))
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// mkdir
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p, err := c.Mkdir("sub/potato")
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require.NoError(t, err)
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assert.Equal(t, "potato", filepath.Base(p))
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assert.Equal(t, []string{
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`name="" isFile=false opens=1 size=0`,
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`name="sub" isFile=false opens=1 size=0`,
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`name="sub/potato" isFile=true opens=1 size=0`,
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}, itemAsString(c))
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// test directory exists
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fi, err := os.Stat(filepath.Dir(p))
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require.NoError(t, err)
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assert.True(t, fi.IsDir())
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// clean the cache
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c.purgeOld(-10 * time.Second)
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// test directory still exists
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fi, err = os.Stat(filepath.Dir(p))
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require.NoError(t, err)
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assert.True(t, fi.IsDir())
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// close
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c.Close("sub/potato")
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assert.Equal(t, []string{
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`name="" isFile=false opens=0 size=0`,
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`name="sub" isFile=false opens=0 size=0`,
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`name="sub/potato" isFile=true opens=0 size=0`,
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}, itemAsString(c))
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// clean the cache
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c.purgeOld(-10 * time.Second)
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c.purgeEmptyDirs()
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assert.Equal(t, []string(nil), itemAsString(c))
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// test directory does not exist
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_, err = os.Stat(filepath.Dir(p))
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require.True(t, os.IsNotExist(err))
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}
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func TestCacheCacheDir(t *testing.T) {
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r := fstest.NewRun(t)
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defer r.Finalise()
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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c, err := New(ctx, r.Fremote, &vfscommon.DefaultOpt)
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require.NoError(t, err)
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assert.Equal(t, []string(nil), itemAsString(c))
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c.cacheDir("dir")
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assert.Equal(t, []string{
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`name="" isFile=false opens=0 size=0`,
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`name="dir" isFile=false opens=0 size=0`,
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}, itemAsString(c))
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c.cacheDir("dir/sub")
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assert.Equal(t, []string{
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`name="" isFile=false opens=0 size=0`,
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`name="dir" isFile=false opens=0 size=0`,
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`name="dir/sub" isFile=false opens=0 size=0`,
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}, itemAsString(c))
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c.cacheDir("dir/sub2/subsub2")
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assert.Equal(t, []string{
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`name="" isFile=false opens=0 size=0`,
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`name="dir" isFile=false opens=0 size=0`,
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`name="dir/sub" isFile=false opens=0 size=0`,
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`name="dir/sub2" isFile=false opens=0 size=0`,
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`name="dir/sub2/subsub2" isFile=false opens=0 size=0`,
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}, itemAsString(c))
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}
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func TestCachePurgeOld(t *testing.T) {
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r := fstest.NewRun(t)
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defer r.Finalise()
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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c, err := New(ctx, r.Fremote, &vfscommon.DefaultOpt)
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require.NoError(t, err)
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// Test funcs
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var removed []string
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removedDir := true
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removeFile := func(name string) {
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removed = append(removed, filepath.ToSlash(name))
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}
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removeDir := func(name string) bool {
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if removedDir {
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removed = append(removed, filepath.ToSlash(name)+"/")
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}
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return removedDir
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}
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removed = nil
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c._purgeOld(-10*time.Second, removeFile)
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c._purgeEmptyDirs(removeDir)
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assert.Equal(t, []string(nil), removed)
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c.Open("sub/dir2/potato2")
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c.Open("sub/dir/potato")
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c.Close("sub/dir2/potato2")
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c.Open("sub/dir/potato")
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assert.Equal(t, []string{
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`name="" isFile=false opens=2 size=0`,
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`name="sub" isFile=false opens=2 size=0`,
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`name="sub/dir" isFile=false opens=2 size=0`,
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`name="sub/dir/potato" isFile=true opens=2 size=0`,
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`name="sub/dir2" isFile=false opens=0 size=0`,
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`name="sub/dir2/potato2" isFile=true opens=0 size=0`,
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}, itemAsString(c))
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removed = nil
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removedDir = true
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c._purgeOld(-10*time.Second, removeFile)
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c._purgeEmptyDirs(removeDir)
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assert.Equal(t, []string{
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"sub/dir2/potato2",
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"sub/dir2/",
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}, removed)
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c.Close("sub/dir/potato")
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removed = nil
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removedDir = true
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c._purgeOld(-10*time.Second, removeFile)
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c._purgeEmptyDirs(removeDir)
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assert.Equal(t, []string(nil), removed)
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c.Close("sub/dir/potato")
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assert.Equal(t, []string{
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`name="" isFile=false opens=0 size=0`,
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`name="sub" isFile=false opens=0 size=0`,
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`name="sub/dir" isFile=false opens=0 size=0`,
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`name="sub/dir/potato" isFile=true opens=0 size=0`,
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}, itemAsString(c))
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removed = nil
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removedDir = false
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c._purgeOld(10*time.Second, removeFile)
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c._purgeEmptyDirs(removeDir)
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assert.Equal(t, []string(nil), removed)
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assert.Equal(t, []string{
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`name="" isFile=false opens=0 size=0`,
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`name="sub" isFile=false opens=0 size=0`,
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`name="sub/dir" isFile=false opens=0 size=0`,
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`name="sub/dir/potato" isFile=true opens=0 size=0`,
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}, itemAsString(c))
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removed = nil
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removedDir = true
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c._purgeOld(-10*time.Second, removeFile)
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c._purgeEmptyDirs(removeDir)
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assert.Equal(t, []string{
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"sub/dir/potato",
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"sub/dir/",
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"sub/",
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"/",
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}, removed)
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assert.Equal(t, []string(nil), itemAsString(c))
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}
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func TestCachePurgeOverQuota(t *testing.T) {
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r := fstest.NewRun(t)
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defer r.Finalise()
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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// Disable the cache cleaner as it interferes with these tests
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opt := vfscommon.DefaultOpt
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opt.CachePollInterval = 0
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c, err := New(ctx, r.Fremote, &opt)
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require.NoError(t, err)
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// Test funcs
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var removed []string
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remove := func(name string) {
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removed = append(removed, filepath.ToSlash(name))
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c.Remove(name)
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}
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removed = nil
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c._purgeOverQuota(-1, remove)
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assert.Equal(t, []string(nil), removed)
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removed = nil
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c._purgeOverQuota(0, remove)
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assert.Equal(t, []string(nil), removed)
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removed = nil
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c._purgeOverQuota(1, remove)
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assert.Equal(t, []string(nil), removed)
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// Make some test files
|
|
c.Open("sub/dir/potato")
|
|
p, err := c.Mkdir("sub/dir/potato")
|
|
require.NoError(t, err)
|
|
err = ioutil.WriteFile(p, []byte("hello"), 0600)
|
|
require.NoError(t, err)
|
|
|
|
p, err = c.Mkdir("sub/dir2/potato2")
|
|
c.Open("sub/dir2/potato2")
|
|
require.NoError(t, err)
|
|
err = ioutil.WriteFile(p, []byte("hello2"), 0600)
|
|
require.NoError(t, err)
|
|
|
|
assert.Equal(t, []string{
|
|
`name="" isFile=false opens=2 size=0`,
|
|
`name="sub" isFile=false opens=2 size=0`,
|
|
`name="sub/dir" isFile=false opens=1 size=0`,
|
|
`name="sub/dir/potato" isFile=true opens=1 size=0`,
|
|
`name="sub/dir2" isFile=false opens=1 size=0`,
|
|
`name="sub/dir2/potato2" isFile=true opens=1 size=0`,
|
|
}, itemAsString(c))
|
|
|
|
// Check nothing removed
|
|
removed = nil
|
|
c._purgeOverQuota(1, remove)
|
|
assert.Equal(t, []string(nil), removed)
|
|
|
|
// Close the files
|
|
c.Close("sub/dir/potato")
|
|
c.Close("sub/dir2/potato2")
|
|
|
|
assert.Equal(t, []string{
|
|
`name="" isFile=false opens=0 size=0`,
|
|
`name="sub" isFile=false opens=0 size=0`,
|
|
`name="sub/dir" isFile=false opens=0 size=0`,
|
|
`name="sub/dir/potato" isFile=true opens=0 size=5`,
|
|
`name="sub/dir2" isFile=false opens=0 size=0`,
|
|
`name="sub/dir2/potato2" isFile=true opens=0 size=6`,
|
|
}, itemAsString(c))
|
|
|
|
// Update the stats to read the total size
|
|
err = c.updateStats()
|
|
require.NoError(t, err)
|
|
assert.Equal(t, int64(11), c.used)
|
|
|
|
// make potato2 definitely after potato
|
|
t1 := time.Now().Add(10 * time.Second)
|
|
c.updateStat("sub/dir2/potato2", t1, 6)
|
|
|
|
// Check only potato removed to get below quota
|
|
removed = nil
|
|
c._purgeOverQuota(10, remove)
|
|
assert.Equal(t, []string{
|
|
"sub/dir/potato",
|
|
}, removed)
|
|
assert.Equal(t, int64(6), c.used)
|
|
|
|
assert.Equal(t, []string{
|
|
`name="" isFile=false opens=0 size=0`,
|
|
`name="sub" isFile=false opens=0 size=0`,
|
|
`name="sub/dir" isFile=false opens=0 size=0`,
|
|
`name="sub/dir2" isFile=false opens=0 size=0`,
|
|
`name="sub/dir2/potato2" isFile=true opens=0 size=6`,
|
|
}, itemAsString(c))
|
|
|
|
// Put potato back
|
|
c.Open("sub/dir/potato")
|
|
p, err = c.Mkdir("sub/dir/potato")
|
|
require.NoError(t, err)
|
|
err = ioutil.WriteFile(p, []byte("hello"), 0600)
|
|
require.NoError(t, err)
|
|
c.Close("sub/dir/potato")
|
|
|
|
// Update the stats to read the total size
|
|
err = c.updateStats()
|
|
require.NoError(t, err)
|
|
assert.Equal(t, int64(11), c.used)
|
|
|
|
assert.Equal(t, []string{
|
|
`name="" isFile=false opens=0 size=0`,
|
|
`name="sub" isFile=false opens=0 size=0`,
|
|
`name="sub/dir" isFile=false opens=0 size=0`,
|
|
`name="sub/dir/potato" isFile=true opens=0 size=5`,
|
|
`name="sub/dir2" isFile=false opens=0 size=0`,
|
|
`name="sub/dir2/potato2" isFile=true opens=0 size=6`,
|
|
}, itemAsString(c))
|
|
|
|
// make potato definitely after potato2
|
|
t2 := t1.Add(20 * time.Second)
|
|
c.updateStat("sub/dir/potato", t2, 5)
|
|
|
|
// Check only potato2 removed to get below quota
|
|
removed = nil
|
|
c._purgeOverQuota(10, remove)
|
|
assert.Equal(t, []string{
|
|
"sub/dir2/potato2",
|
|
}, removed)
|
|
assert.Equal(t, int64(5), c.used)
|
|
c.purgeEmptyDirs()
|
|
|
|
assert.Equal(t, []string{
|
|
`name="" isFile=false opens=0 size=0`,
|
|
`name="sub" isFile=false opens=0 size=0`,
|
|
`name="sub/dir" isFile=false opens=0 size=0`,
|
|
`name="sub/dir/potato" isFile=true opens=0 size=5`,
|
|
}, itemAsString(c))
|
|
|
|
// Now purge everything
|
|
removed = nil
|
|
c._purgeOverQuota(1, remove)
|
|
assert.Equal(t, []string{
|
|
"sub/dir/potato",
|
|
}, removed)
|
|
assert.Equal(t, int64(0), c.used)
|
|
c.purgeEmptyDirs()
|
|
|
|
assert.Equal(t, []string(nil), itemAsString(c))
|
|
|
|
// Check nothing left behind
|
|
c.clean()
|
|
assert.Equal(t, int64(0), c.used)
|
|
assert.Equal(t, []string(nil), itemAsString(c))
|
|
}
|