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block_disk_store_test.go
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block_disk_store_test.go
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// Copyright 2016 Keybase Inc. All rights reserved.
// Use of this source code is governed by a BSD
// license that can be found in the LICENSE file.
package libkbfs
import (
"context"
"os"
"path/filepath"
"testing"
"github.com/keybase/client/go/kbfs/ioutil"
"github.com/keybase/client/go/kbfs/kbfsblock"
"github.com/keybase/client/go/kbfs/kbfscodec"
"github.com/keybase/client/go/kbfs/kbfscrypto"
"github.com/keybase/client/go/protocol/keybase1"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func setupBlockDiskStoreTest(t *testing.T) (tempdir string, s *blockDiskStore) {
codec := kbfscodec.NewMsgpack()
tempdir, err := ioutil.TempDir(os.TempDir(), "block_disk_store")
require.NoError(t, err)
s = makeBlockDiskStore(codec, tempdir)
return tempdir, s
}
func teardownBlockDiskStoreTest(t *testing.T, tempdir string) {
err := ioutil.RemoveAll(tempdir)
assert.NoError(t, err)
}
func putBlockDisk(
ctx context.Context, t *testing.T, s *blockDiskStore, data []byte) (
kbfsblock.ID, kbfsblock.Context, kbfscrypto.BlockCryptKeyServerHalf) {
bID, err := kbfsblock.MakePermanentID(
data, kbfscrypto.EncryptionSecretboxWithKeyNonce)
require.NoError(t, err)
uid1 := keybase1.MakeTestUID(1)
bCtx := kbfsblock.MakeFirstContext(
uid1.AsUserOrTeam(), keybase1.BlockType_DATA)
serverHalf, err := kbfscrypto.MakeRandomBlockCryptKeyServerHalf()
require.NoError(t, err)
didPut, err := s.put(ctx, true, bID, bCtx, data, serverHalf)
require.NoError(t, err)
err = s.addReference(ctx, bID, bCtx, "tag")
require.NoError(t, err)
require.True(t, didPut)
return bID, bCtx, serverHalf
}
func addBlockDiskRef(
ctx context.Context, t *testing.T, s *blockDiskStore,
bID kbfsblock.ID) kbfsblock.Context {
nonce, err := kbfsblock.MakeRefNonce()
require.NoError(t, err)
uid1 := keybase1.MakeTestUID(1)
uid2 := keybase1.MakeTestUID(2)
bCtx2 := kbfsblock.MakeContext(
uid1.AsUserOrTeam(), uid2.AsUserOrTeam(), nonce,
keybase1.BlockType_DATA)
err = s.addReference(ctx, bID, bCtx2, "")
require.NoError(t, err)
return bCtx2
}
func getAndCheckBlockDiskData(
ctx context.Context, t *testing.T, s *blockDiskStore,
bID kbfsblock.ID, bCtx kbfsblock.Context, expectedData []byte,
expectedServerHalf kbfscrypto.BlockCryptKeyServerHalf) {
data, serverHalf, err := s.getDataWithContext(ctx, bID, bCtx)
require.NoError(t, err)
require.Equal(t, expectedData, data)
require.Equal(t, expectedServerHalf, serverHalf)
}
func TestBlockDiskStoreBasic(t *testing.T) {
tempdir, s := setupBlockDiskStoreTest(t)
defer teardownBlockDiskStoreTest(t, tempdir)
ctx := context.Background()
// Put the block.
data := []byte{1, 2, 3, 4}
bID, bCtx, serverHalf := putBlockDisk(ctx, t, s, data)
// Make sure we get the same block back.
getAndCheckBlockDiskData(ctx, t, s, bID, bCtx, data, serverHalf)
// Add a reference.
bCtx2 := addBlockDiskRef(ctx, t, s, bID)
// Make sure we get the same block via that reference.
getAndCheckBlockDiskData(ctx, t, s, bID, bCtx2, data, serverHalf)
// Shutdown and restart.
s = makeBlockDiskStore(s.codec, tempdir)
// Make sure we get the same block for both refs.
getAndCheckBlockDiskData(ctx, t, s, bID, bCtx, data, serverHalf)
getAndCheckBlockDiskData(ctx, t, s, bID, bCtx2, data, serverHalf)
}
func TestBlockDiskStoreAddReference(t *testing.T) {
tempdir, s := setupBlockDiskStoreTest(t)
defer teardownBlockDiskStoreTest(t, tempdir)
ctx := context.Background()
data := []byte{1, 2, 3, 4}
bID, err := kbfsblock.MakePermanentID(
data, kbfscrypto.EncryptionSecretboxWithKeyNonce)
require.NoError(t, err)
// Add a reference, which should succeed.
bCtx := addBlockDiskRef(ctx, t, s, bID)
// Of course, the block get should still fail.
_, _, err = s.getDataWithContext(ctx, bID, bCtx)
require.Equal(t, blockNonExistentError{bID}, err)
}
func TestBlockDiskStoreArchiveReferences(t *testing.T) {
tempdir, s := setupBlockDiskStoreTest(t)
defer teardownBlockDiskStoreTest(t, tempdir)
ctx := context.Background()
// Put the block.
data := []byte{1, 2, 3, 4}
bID, bCtx, serverHalf := putBlockDisk(ctx, t, s, data)
// Add a reference.
bCtx2 := addBlockDiskRef(ctx, t, s, bID)
// Archive references.
err := s.archiveReferences(
ctx, kbfsblock.ContextMap{bID: {bCtx, bCtx2}}, "")
require.NoError(t, err)
// Get block should still succeed.
getAndCheckBlockDiskData(ctx, t, s, bID, bCtx, data, serverHalf)
}
func TestBlockDiskStoreArchiveNonExistentReference(t *testing.T) {
tempdir, s := setupBlockDiskStoreTest(t)
defer teardownBlockDiskStoreTest(t, tempdir)
ctx := context.Background()
uid1 := keybase1.MakeTestUID(1)
bCtx := kbfsblock.MakeFirstContext(
uid1.AsUserOrTeam(), keybase1.BlockType_DATA)
data := []byte{1, 2, 3, 4}
bID, err := kbfsblock.MakePermanentID(
data, kbfscrypto.EncryptionSecretboxWithKeyNonce)
require.NoError(t, err)
// Archive references.
err = s.archiveReferences(ctx, kbfsblock.ContextMap{bID: {bCtx}}, "")
require.NoError(t, err)
}
func TestBlockDiskStoreRemoveReferences(t *testing.T) {
tempdir, s := setupBlockDiskStoreTest(t)
defer teardownBlockDiskStoreTest(t, tempdir)
ctx := context.Background()
// Put the block.
data := []byte{1, 2, 3, 4}
bID, bCtx, serverHalf := putBlockDisk(ctx, t, s, data)
// Add a reference.
bCtx2 := addBlockDiskRef(ctx, t, s, bID)
// Remove references.
liveCount, err := s.removeReferences(
ctx, bID, []kbfsblock.Context{bCtx, bCtx2}, "")
require.NoError(t, err)
require.Equal(t, 0, liveCount)
// Make sure the block data is inaccessible.
_, _, err = s.getDataWithContext(ctx, bID, bCtx)
require.Equal(t, blockNonExistentError{bID}, err)
// But the actual data should remain.
buf, half, err := s.getData(ctx, bID)
require.NoError(t, err)
require.Equal(t, data, buf)
require.Equal(t, serverHalf, half)
}
func TestBlockDiskStoreRemove(t *testing.T) {
tempdir, s := setupBlockDiskStoreTest(t)
defer teardownBlockDiskStoreTest(t, tempdir)
ctx := context.Background()
// Put the block.
data := []byte{1, 2, 3, 4}
bID, bCtx, _ := putBlockDisk(ctx, t, s, data)
// Should not be removable.
err := s.remove(ctx, bID)
require.Error(t, err, "Trying to remove data")
// Remove reference.
liveCount, err := s.removeReferences(
ctx, bID, []kbfsblock.Context{bCtx}, "")
require.NoError(t, err)
require.Equal(t, 0, liveCount)
// Should now be removable.
err = s.remove(ctx, bID)
require.NoError(t, err)
_, _, err = s.getData(ctx, bID)
require.Equal(t, blockNonExistentError{bID}, err)
err = filepath.Walk(s.dir,
func(path string, info os.FileInfo, _ error) error {
// We should only find the blocks directory here.
if path != s.dir {
t.Errorf("Found unexpected block path: %s", path)
}
return nil
})
require.NoError(t, err)
}