mirror of https://github.com/rclone/rclone
716 lines
17 KiB
Go
716 lines
17 KiB
Go
package vfscache
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import (
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"context"
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"fmt"
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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/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.mu.Lock()
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defer c.mu.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 opens=%d size=%d", filepath.ToSlash(name), item.opens, item.info.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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// convert c.item to a string
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func itemSpaceAsString(c *Cache) []string {
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c.mu.Lock()
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defer c.mu.Unlock()
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var out []string
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for name, item := range c.item {
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space := item.info.Rs.Size()
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out = append(out, fmt.Sprintf("name=%q opens=%d size=%d space=%d", filepath.ToSlash(name), item.opens, item.info.Size, space))
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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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// open an item and write to it
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func itemWrite(t *testing.T, item *Item, contents string) {
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require.NoError(t, item.Open(nil))
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_, err := item.WriteAt([]byte(contents), 0)
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require.NoError(t, err)
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}
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func assertPathNotExist(t *testing.T, path string) {
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_, err := os.Stat(path)
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assert.True(t, os.IsNotExist(err))
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}
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func assertPathExist(t *testing.T, path string) os.FileInfo {
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fi, err := os.Stat(path)
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assert.NoError(t, err)
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return fi
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}
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type avInfo struct {
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Remote string
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Size int64
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IsDir bool
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}
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var avInfos []avInfo
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func addVirtual(remote string, size int64, isDir bool) error {
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avInfos = append(avInfos, avInfo{
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Remote: remote,
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Size: size,
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IsDir: isDir,
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})
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return nil
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}
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func newTestCacheOpt(t *testing.T, opt vfscommon.Options) (r *fstest.Run, c *Cache, cleanup func()) {
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r = fstest.NewRun(t)
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ctx, cancel := context.WithCancel(context.Background())
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avInfos = nil
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c, err := New(ctx, r.Fremote, &opt, addVirtual)
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require.NoError(t, err)
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cleanup = func() {
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err := c.CleanUp()
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require.NoError(t, err)
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assertPathNotExist(t, c.root)
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cancel()
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r.Finalise()
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}
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return r, c, cleanup
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}
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func newTestCache(t *testing.T) (r *fstest.Run, c *Cache, cleanup func()) {
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opt := vfscommon.DefaultOpt
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// Disable the cache cleaner as it interferes with these tests
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opt.CachePollInterval = 0
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// Disable synchronous write
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opt.WriteBack = 0
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return newTestCacheOpt(t, opt)
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}
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func TestCacheNew(t *testing.T) {
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r, c, cleanup := newTestCache(t)
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defer cleanup()
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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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// createItemDir
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p, err := c.createItemDir("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(nil), itemAsString(c))
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fi := assertPathExist(t, filepath.Dir(p))
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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.info.ATime, time.Second)
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// open
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assert.Equal(t, []string{
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`name="potato" opens=0 size=0`,
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}, itemAsString(c))
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potato := c.Item("/potato")
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require.NoError(t, potato.Open(nil))
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assert.Equal(t, []string{
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`name="potato" opens=1 size=0`,
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}, itemAsString(c))
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assert.WithinDuration(t, time.Now(), potato.info.ATime, time.Second)
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assert.Equal(t, 1, potato.opens)
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// write the file
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require.NoError(t, potato.Truncate(5))
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atime := time.Now()
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potato.info.ATime = atime
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assert.Equal(t, []string{
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`name="potato" opens=1 size=5`,
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}, itemAsString(c))
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assert.True(t, atime.Equal(potato.info.ATime), fmt.Sprintf("%v != %v", atime, potato.info.ATime))
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// try purging with file open
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c.purgeOld(10 * time.Second)
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assertPathExist(t, p)
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// close
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assert.Equal(t, []string{
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`name="potato" opens=1 size=5`,
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}, itemAsString(c))
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require.NoError(t, potato.Truncate(6))
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assert.Equal(t, []string{
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`name="potato" opens=1 size=6`,
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}, itemAsString(c))
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require.NoError(t, potato.Close(nil))
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assert.Equal(t, []string{
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`name="potato" opens=0 size=6`,
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}, itemAsString(c))
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item, _ = c.get("potato")
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assert.WithinDuration(t, time.Now(), item.info.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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assertPathExist(t, p)
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//.. purge again with -ve age
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c.purgeOld(-10 * time.Second)
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assertPathNotExist(t, p)
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// clean - have tested the internals already
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c.clean(false)
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}
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func TestCacheOpens(t *testing.T) {
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_, c, cleanup := newTestCache(t)
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defer cleanup()
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assert.Equal(t, []string(nil), itemAsString(c))
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potato := c.Item("potato")
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require.NoError(t, potato.Open(nil))
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assert.Equal(t, []string{
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`name="potato" opens=1 size=0`,
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}, itemAsString(c))
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require.NoError(t, potato.Open(nil))
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assert.Equal(t, []string{
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`name="potato" opens=2 size=0`,
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}, itemAsString(c))
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require.NoError(t, potato.Close(nil))
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assert.Equal(t, []string{
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`name="potato" opens=1 size=0`,
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}, itemAsString(c))
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require.NoError(t, potato.Close(nil))
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assert.Equal(t, []string{
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`name="potato" opens=0 size=0`,
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}, itemAsString(c))
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require.NoError(t, potato.Open(nil))
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a1 := c.Item("a//b/c/d/one")
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a2 := c.Item("a/b/c/d/e/two")
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a3 := c.Item("a/b/c/d/e/f/three")
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require.NoError(t, a1.Open(nil))
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require.NoError(t, a2.Open(nil))
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require.NoError(t, a3.Open(nil))
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assert.Equal(t, []string{
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`name="a/b/c/d/e/f/three" opens=1 size=0`,
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`name="a/b/c/d/e/two" opens=1 size=0`,
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`name="a/b/c/d/one" opens=1 size=0`,
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`name="potato" opens=1 size=0`,
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}, itemAsString(c))
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require.NoError(t, potato.Close(nil))
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require.NoError(t, a1.Close(nil))
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require.NoError(t, a2.Close(nil))
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require.NoError(t, a3.Close(nil))
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assert.Equal(t, []string{
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`name="a/b/c/d/e/f/three" opens=0 size=0`,
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`name="a/b/c/d/e/two" opens=0 size=0`,
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`name="a/b/c/d/one" opens=0 size=0`,
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`name="potato" opens=0 size=0`,
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}, itemAsString(c))
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}
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// test the open, createItemDir, purge, close, purge sequence
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func TestCacheOpenMkdir(t *testing.T) {
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_, c, cleanup := newTestCache(t)
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defer cleanup()
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// open
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potato := c.Item("sub/potato")
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require.NoError(t, potato.Open(nil))
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assert.Equal(t, []string{
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`name="sub/potato" opens=1 size=0`,
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}, itemAsString(c))
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// createItemDir
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p, err := c.createItemDir("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="sub/potato" opens=1 size=0`,
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}, itemAsString(c))
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// test directory exists
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fi := assertPathExist(t, filepath.Dir(p))
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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 = assertPathExist(t, filepath.Dir(p))
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assert.True(t, fi.IsDir())
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// close
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require.NoError(t, potato.Close(nil))
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assert.Equal(t, []string{
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`name="sub/potato" 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("", true)
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assert.Equal(t, []string(nil), itemAsString(c))
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// test directory does not exist
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assertPathNotExist(t, filepath.Dir(p))
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}
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func TestCachePurgeOld(t *testing.T) {
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_, c, cleanup := newTestCache(t)
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defer cleanup()
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// Test funcs
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c.purgeOld(-10 * time.Second)
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potato2 := c.Item("sub/dir2/potato2")
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require.NoError(t, potato2.Open(nil))
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potato := c.Item("sub/dir/potato")
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require.NoError(t, potato.Open(nil))
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require.NoError(t, potato2.Close(nil))
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require.NoError(t, potato.Open(nil))
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assert.Equal(t, []string{
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`name="sub/dir/potato" opens=2 size=0`,
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`name="sub/dir2/potato2" opens=0 size=0`,
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}, itemAsString(c))
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c.purgeOld(-10 * time.Second)
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assert.Equal(t, []string{
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`name="sub/dir/potato" opens=2 size=0`,
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}, itemAsString(c))
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require.NoError(t, potato.Close(nil))
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assert.Equal(t, []string{
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`name="sub/dir/potato" opens=1 size=0`,
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}, itemAsString(c))
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c.purgeOld(-10 * time.Second)
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assert.Equal(t, []string{
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`name="sub/dir/potato" opens=1 size=0`,
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}, itemAsString(c))
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require.NoError(t, potato.Close(nil))
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assert.Equal(t, []string{
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`name="sub/dir/potato" opens=0 size=0`,
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}, itemAsString(c))
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c.purgeOld(10 * time.Second)
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assert.Equal(t, []string{
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`name="sub/dir/potato" opens=0 size=0`,
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}, itemAsString(c))
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c.purgeOld(-10 * time.Second)
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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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_, c, cleanup := newTestCache(t)
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defer cleanup()
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// Test funcs
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// Make some test files
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potato := c.Item("sub/dir/potato")
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itemWrite(t, potato, "hello")
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potato2 := c.Item("sub/dir2/potato2")
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itemWrite(t, potato2, "hello2")
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assert.Equal(t, []string{
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`name="sub/dir/potato" opens=1 size=5`,
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`name="sub/dir2/potato2" opens=1 size=6`,
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}, itemAsString(c))
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// Check nothing removed
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c.purgeOverQuota(1)
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// Close the files
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require.NoError(t, potato.Close(nil))
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require.NoError(t, potato2.Close(nil))
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assert.Equal(t, []string{
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`name="sub/dir/potato" opens=0 size=5`,
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`name="sub/dir2/potato2" opens=0 size=6`,
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}, itemAsString(c))
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// Update the stats to read the total size
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c.updateUsed()
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// make potato2 definitely after potato
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t1 := time.Now().Add(10 * time.Second)
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potato2.info.ATime = t1
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// Check only potato removed to get below quota
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c.purgeOverQuota(10)
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assert.Equal(t, int64(6), c.used)
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assert.Equal(t, []string{
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`name="sub/dir2/potato2" opens=0 size=6`,
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}, itemAsString(c))
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// Put potato back
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potato = c.Item("sub/dir/potato")
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require.NoError(t, potato.Open(nil))
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require.NoError(t, potato.Truncate(5))
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require.NoError(t, potato.Close(nil))
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// Update the stats to read the total size
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c.updateUsed()
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assert.Equal(t, []string{
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`name="sub/dir/potato" opens=0 size=5`,
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`name="sub/dir2/potato2" opens=0 size=6`,
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}, itemAsString(c))
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// make potato definitely after potato2
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t2 := t1.Add(20 * time.Second)
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potato.info.ATime = t2
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// Check only potato2 removed to get below quota
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c.purgeOverQuota(10)
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assert.Equal(t, int64(5), c.used)
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c.purgeEmptyDirs("", true)
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assert.Equal(t, []string{
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`name="sub/dir/potato" opens=0 size=5`,
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}, itemAsString(c))
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// Now purge everything
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c.purgeOverQuota(1)
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assert.Equal(t, int64(0), c.used)
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c.purgeEmptyDirs("", true)
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assert.Equal(t, []string(nil), itemAsString(c))
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// Check nothing left behind
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c.clean(false)
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assert.Equal(t, int64(0), c.used)
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assert.Equal(t, []string(nil), itemAsString(c))
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}
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// test reset clean files
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func TestCachePurgeClean(t *testing.T) {
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r, c, cleanup := newItemTestCache(t)
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defer cleanup()
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contents, obj, potato1 := newFile(t, r, c, "existing")
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_ = contents
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// Open the object to create metadata for it
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require.NoError(t, potato1.Open(obj))
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require.NoError(t, potato1.Open(obj))
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size, err := potato1.GetSize()
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require.NoError(t, err)
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assert.Equal(t, int64(100), size)
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// Read something to instantiate the cache file
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buf := make([]byte, 10)
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_, err = potato1.ReadAt(buf, 10)
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require.NoError(t, err)
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// Test cache file present
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_, err = os.Stat(potato1.c.toOSPath(potato1.name))
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require.NoError(t, err)
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// Add some potatoes
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potato2 := c.Item("sub/dir/potato2")
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require.NoError(t, potato2.Open(nil))
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require.NoError(t, potato2.Truncate(5))
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potato3 := c.Item("sub/dir/potato3")
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require.NoError(t, potato3.Open(nil))
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require.NoError(t, potato3.Truncate(6))
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c.updateUsed()
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c.purgeClean(1)
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assert.Equal(t, []string{
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`name="existing" opens=2 size=100 space=0`,
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`name="sub/dir/potato2" opens=1 size=5 space=5`,
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`name="sub/dir/potato3" opens=1 size=6 space=6`,
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}, itemSpaceAsString(c))
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assert.Equal(t, int64(11), c.used)
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require.NoError(t, potato2.Close(nil))
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c.purgeClean(1)
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assert.Equal(t, []string{
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`name="existing" opens=2 size=100 space=0`,
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`name="sub/dir/potato3" opens=1 size=6 space=6`,
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}, itemSpaceAsString(c))
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assert.Equal(t, int64(6), c.used)
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require.NoError(t, potato1.Close(nil))
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require.NoError(t, potato1.Close(nil))
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require.NoError(t, potato3.Close(nil))
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// Remove all files now. The are all not in use.
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// purgeClean does not remove empty cache files. purgeOverQuota does.
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// So we use purgeOverQuota here for the cleanup.
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c.purgeOverQuota(1)
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c.purgeEmptyDirs("", true)
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assert.Equal(t, []string(nil), itemAsString(c))
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}
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func TestCacheInUse(t *testing.T) {
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_, c, cleanup := newTestCache(t)
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defer cleanup()
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assert.False(t, c.InUse("potato"))
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potato := c.Item("potato")
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assert.False(t, c.InUse("potato"))
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require.NoError(t, potato.Open(nil))
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assert.True(t, c.InUse("potato"))
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require.NoError(t, potato.Close(nil))
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assert.False(t, c.InUse("potato"))
|
|
}
|
|
|
|
func TestCacheDirtyItem(t *testing.T) {
|
|
_, c, cleanup := newTestCache(t)
|
|
defer cleanup()
|
|
|
|
assert.Nil(t, c.DirtyItem("potato"))
|
|
|
|
potato := c.Item("potato")
|
|
|
|
assert.Nil(t, c.DirtyItem("potato"))
|
|
|
|
require.NoError(t, potato.Open(nil))
|
|
require.NoError(t, potato.Truncate(5))
|
|
|
|
assert.Equal(t, potato, c.DirtyItem("potato"))
|
|
|
|
require.NoError(t, potato.Close(nil))
|
|
|
|
assert.Nil(t, c.DirtyItem("potato"))
|
|
}
|
|
|
|
func TestCacheExistsAndRemove(t *testing.T) {
|
|
_, c, cleanup := newTestCache(t)
|
|
defer cleanup()
|
|
|
|
assert.False(t, c.Exists("potato"))
|
|
|
|
potato := c.Item("potato")
|
|
|
|
assert.False(t, c.Exists("potato"))
|
|
|
|
require.NoError(t, potato.Open(nil))
|
|
|
|
assert.True(t, c.Exists("potato"))
|
|
|
|
require.NoError(t, potato.Close(nil))
|
|
|
|
assert.True(t, c.Exists("potato"))
|
|
|
|
c.Remove("potato")
|
|
|
|
assert.False(t, c.Exists("potato"))
|
|
|
|
}
|
|
|
|
func TestCacheRename(t *testing.T) {
|
|
_, c, cleanup := newTestCache(t)
|
|
defer cleanup()
|
|
|
|
// setup
|
|
|
|
assert.False(t, c.Exists("potato"))
|
|
potato := c.Item("potato")
|
|
require.NoError(t, potato.Open(nil))
|
|
require.NoError(t, potato.Close(nil))
|
|
assert.True(t, c.Exists("potato"))
|
|
|
|
osPath := c.toOSPath("potato")
|
|
osPathMeta := c.toOSPathMeta("potato")
|
|
assertPathExist(t, osPath)
|
|
assertPathExist(t, osPathMeta)
|
|
|
|
// rename potato -> newPotato
|
|
|
|
require.NoError(t, c.Rename("potato", "newPotato", nil))
|
|
assertPathNotExist(t, osPath)
|
|
assertPathNotExist(t, osPathMeta)
|
|
assert.False(t, c.Exists("potato"))
|
|
|
|
osPath = c.toOSPath("newPotato")
|
|
osPathMeta = c.toOSPathMeta("newPotato")
|
|
assertPathExist(t, osPath)
|
|
assertPathExist(t, osPathMeta)
|
|
assert.True(t, c.Exists("newPotato"))
|
|
|
|
// rename newPotato -> sub/newPotato
|
|
|
|
require.NoError(t, c.Rename("newPotato", "sub/newPotato", nil))
|
|
assertPathNotExist(t, osPath)
|
|
assertPathNotExist(t, osPathMeta)
|
|
assert.False(t, c.Exists("potato"))
|
|
|
|
osPath = c.toOSPath("sub/newPotato")
|
|
osPathMeta = c.toOSPathMeta("sub/newPotato")
|
|
assertPathExist(t, osPath)
|
|
assertPathExist(t, osPathMeta)
|
|
assert.True(t, c.Exists("sub/newPotato"))
|
|
|
|
// remove
|
|
|
|
c.Remove("sub/newPotato")
|
|
assertPathNotExist(t, osPath)
|
|
assertPathNotExist(t, osPathMeta)
|
|
assert.False(t, c.Exists("sub/newPotato"))
|
|
|
|
// nonexistent file - is ignored
|
|
assert.NoError(t, c.Rename("nonexist", "nonexist2", nil))
|
|
}
|
|
|
|
func TestCacheCleaner(t *testing.T) {
|
|
opt := vfscommon.DefaultOpt
|
|
opt.CachePollInterval = 10 * time.Millisecond
|
|
opt.CacheMaxAge = 20 * time.Millisecond
|
|
_, c, cleanup := newTestCacheOpt(t, opt)
|
|
defer cleanup()
|
|
|
|
time.Sleep(2 * opt.CachePollInterval)
|
|
|
|
potato := c.Item("potato")
|
|
potato2, found := c.get("potato")
|
|
assert.Equal(t, fmt.Sprintf("%p", potato), fmt.Sprintf("%p", potato2))
|
|
assert.True(t, found)
|
|
|
|
for i := 0; i < 100; i++ {
|
|
time.Sleep(10 * opt.CachePollInterval)
|
|
potato2, found = c.get("potato")
|
|
if !found {
|
|
break
|
|
}
|
|
}
|
|
|
|
assert.NotEqual(t, fmt.Sprintf("%p", potato), fmt.Sprintf("%p", potato2))
|
|
assert.False(t, found)
|
|
}
|
|
|
|
func TestCacheSetModTime(t *testing.T) {
|
|
_, c, cleanup := newTestCache(t)
|
|
defer cleanup()
|
|
|
|
t1 := time.Date(2010, 1, 2, 3, 4, 5, 9, time.UTC)
|
|
|
|
potato := c.Item("potato")
|
|
require.NoError(t, potato.Open(nil))
|
|
require.NoError(t, potato.Truncate(5))
|
|
require.NoError(t, potato.Close(nil))
|
|
|
|
c.SetModTime("potato", t1)
|
|
osPath := potato.c.toOSPath("potato")
|
|
fi, err := os.Stat(osPath)
|
|
require.NoError(t, err)
|
|
|
|
fstest.AssertTimeEqualWithPrecision(t, "potato", t1, fi.ModTime(), time.Second)
|
|
}
|
|
|
|
func TestCacheTotaInUse(t *testing.T) {
|
|
_, c, cleanup := newTestCache(t)
|
|
defer cleanup()
|
|
|
|
assert.Equal(t, int(0), c.TotalInUse())
|
|
|
|
potato := c.Item("potato")
|
|
assert.Equal(t, int(0), c.TotalInUse())
|
|
|
|
require.NoError(t, potato.Open(nil))
|
|
assert.Equal(t, int(1), c.TotalInUse())
|
|
|
|
require.NoError(t, potato.Truncate(5))
|
|
assert.Equal(t, int(1), c.TotalInUse())
|
|
|
|
potato2 := c.Item("potato2")
|
|
assert.Equal(t, int(1), c.TotalInUse())
|
|
|
|
require.NoError(t, potato2.Open(nil))
|
|
assert.Equal(t, int(2), c.TotalInUse())
|
|
|
|
require.NoError(t, potato2.Close(nil))
|
|
assert.Equal(t, int(1), c.TotalInUse())
|
|
|
|
require.NoError(t, potato.Close(nil))
|
|
assert.Equal(t, int(0), c.TotalInUse())
|
|
}
|
|
|
|
func TestCacheDump(t *testing.T) {
|
|
_, c, cleanup := newTestCache(t)
|
|
defer cleanup()
|
|
|
|
out := (*Cache)(nil).Dump()
|
|
assert.Equal(t, "Cache: <nil>\n", out)
|
|
|
|
out = c.Dump()
|
|
assert.Equal(t, "Cache{\n}\n", out)
|
|
|
|
c.Item("potato")
|
|
|
|
out = c.Dump()
|
|
want := "Cache{\n\t\"potato\": "
|
|
assert.Equal(t, want, out[:len(want)])
|
|
|
|
c.Remove("potato")
|
|
|
|
out = c.Dump()
|
|
assert.Equal(t, "Cache{\n}\n", out)
|
|
}
|
|
|
|
func TestCacheStats(t *testing.T) {
|
|
_, c, cleanup := newTestCache(t)
|
|
defer cleanup()
|
|
|
|
out := c.Stats()
|
|
assert.Equal(t, int64(0), out["bytesUsed"])
|
|
assert.Equal(t, 0, out["erroredFiles"])
|
|
assert.Equal(t, 0, out["files"])
|
|
assert.Equal(t, 0, out["uploadsInProgress"])
|
|
assert.Equal(t, 0, out["uploadsQueued"])
|
|
}
|