mirror of
https://github.com/restic/restic.git
synced 2024-08-28 15:17:22 +02:00
115 lines
2.3 KiB
Go
115 lines
2.3 KiB
Go
package cache
|
|
|
|
import (
|
|
"bytes"
|
|
"context"
|
|
"math/rand"
|
|
"testing"
|
|
|
|
"github.com/restic/restic/internal/backend"
|
|
"github.com/restic/restic/internal/backend/mem"
|
|
"github.com/restic/restic/internal/restic"
|
|
"github.com/restic/restic/internal/test"
|
|
)
|
|
|
|
func loadAndCompare(t testing.TB, be restic.Backend, h restic.Handle, data []byte) {
|
|
buf, err := backend.LoadAll(context.TODO(), be, h)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
if len(buf) != len(data) {
|
|
t.Fatalf("wrong number of bytes read, want %v, got %v", len(data), len(buf))
|
|
}
|
|
|
|
if !bytes.Equal(buf, data) {
|
|
t.Fatalf("wrong data returned, want:\n %02x\ngot:\n %02x", data[:16], buf[:16])
|
|
}
|
|
}
|
|
|
|
func save(t testing.TB, be restic.Backend, h restic.Handle, data []byte) {
|
|
err := be.Save(context.TODO(), h, bytes.NewReader(data))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
|
|
func remove(t testing.TB, be restic.Backend, h restic.Handle) {
|
|
err := be.Remove(context.TODO(), h)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
|
|
func randomData(n int) (restic.Handle, []byte) {
|
|
data := test.Random(rand.Int(), n)
|
|
id := restic.Hash(data)
|
|
copy(id[:], data)
|
|
h := restic.Handle{
|
|
Type: restic.IndexFile,
|
|
Name: id.String(),
|
|
}
|
|
return h, data
|
|
}
|
|
|
|
func TestBackend(t *testing.T) {
|
|
be := mem.New()
|
|
|
|
c, cleanup := TestNewCache(t)
|
|
defer cleanup()
|
|
|
|
wbe := c.Wrap(be)
|
|
|
|
h, data := randomData(5234142)
|
|
|
|
// save directly in backend
|
|
save(t, be, h, data)
|
|
if c.Has(h) {
|
|
t.Errorf("cache has file too early")
|
|
}
|
|
|
|
// load data via cache
|
|
loadAndCompare(t, wbe, h, data)
|
|
if !c.Has(h) {
|
|
t.Errorf("cache doesn't have file after load")
|
|
}
|
|
|
|
// remove via cache
|
|
remove(t, wbe, h)
|
|
if c.Has(h) {
|
|
t.Errorf("cache has file after remove")
|
|
}
|
|
|
|
// save via cache
|
|
save(t, wbe, h, data)
|
|
if !c.Has(h) {
|
|
t.Errorf("cache doesn't have file after load")
|
|
}
|
|
|
|
// load data directly from backend
|
|
loadAndCompare(t, be, h, data)
|
|
|
|
// load data via cache
|
|
loadAndCompare(t, be, h, data)
|
|
|
|
// remove directly
|
|
remove(t, be, h)
|
|
if !c.Has(h) {
|
|
t.Errorf("file not in cache any more")
|
|
}
|
|
|
|
// run stat
|
|
_, err := wbe.Stat(context.TODO(), h)
|
|
if err == nil {
|
|
t.Errorf("expected error for removed file not found, got nil")
|
|
}
|
|
|
|
if !wbe.IsNotExist(err) {
|
|
t.Errorf("Stat() returned error that does not match IsNotExist(): %v", err)
|
|
}
|
|
|
|
if c.Has(h) {
|
|
t.Errorf("removed file still in cache after stat")
|
|
}
|
|
}
|