github.com/prysmaticlabs/prysm@v1.4.4/beacon-chain/db/restore_test.go (about)

     1  package db
     2  
     3  import (
     4  	"context"
     5  	"flag"
     6  	"io/ioutil"
     7  	"os"
     8  	"path"
     9  	"testing"
    10  
    11  	types "github.com/prysmaticlabs/eth2-types"
    12  	"github.com/prysmaticlabs/prysm/beacon-chain/db/kv"
    13  	"github.com/prysmaticlabs/prysm/proto/eth/v1alpha1/wrapper"
    14  	"github.com/prysmaticlabs/prysm/shared/cmd"
    15  	"github.com/prysmaticlabs/prysm/shared/testutil"
    16  	"github.com/prysmaticlabs/prysm/shared/testutil/assert"
    17  	"github.com/prysmaticlabs/prysm/shared/testutil/require"
    18  	logTest "github.com/sirupsen/logrus/hooks/test"
    19  	"github.com/urfave/cli/v2"
    20  )
    21  
    22  func TestRestore(t *testing.T) {
    23  	logHook := logTest.NewGlobal()
    24  	ctx := context.Background()
    25  
    26  	backupDb, err := kv.NewKVStore(context.Background(), t.TempDir(), &kv.Config{})
    27  	require.NoError(t, err)
    28  	head := testutil.NewBeaconBlock()
    29  	head.Block.Slot = 5000
    30  	require.NoError(t, backupDb.SaveBlock(ctx, wrapper.WrappedPhase0SignedBeaconBlock(head)))
    31  	root, err := head.Block.HashTreeRoot()
    32  	require.NoError(t, err)
    33  	st, err := testutil.NewBeaconState()
    34  	require.NoError(t, err)
    35  	require.NoError(t, backupDb.SaveState(ctx, st, root))
    36  	require.NoError(t, backupDb.SaveHeadBlockRoot(ctx, root))
    37  	require.NoError(t, err)
    38  	require.NoError(t, backupDb.Close())
    39  	// We rename the backup file so that we can later verify
    40  	// whether the restored db has been renamed correctly.
    41  	require.NoError(t, os.Rename(
    42  		path.Join(backupDb.DatabasePath(), kv.DatabaseFileName),
    43  		path.Join(backupDb.DatabasePath(), "backup.db")))
    44  
    45  	restoreDir := t.TempDir()
    46  	app := cli.App{}
    47  	set := flag.NewFlagSet("test", 0)
    48  	set.String(cmd.RestoreSourceFileFlag.Name, "", "")
    49  	set.String(cmd.RestoreTargetDirFlag.Name, "", "")
    50  	require.NoError(t, set.Set(cmd.RestoreSourceFileFlag.Name, path.Join(backupDb.DatabasePath(), "backup.db")))
    51  	require.NoError(t, set.Set(cmd.RestoreTargetDirFlag.Name, restoreDir))
    52  	cliCtx := cli.NewContext(&app, set, nil)
    53  
    54  	assert.NoError(t, Restore(cliCtx))
    55  
    56  	files, err := ioutil.ReadDir(path.Join(restoreDir, kv.BeaconNodeDbDirName))
    57  	require.NoError(t, err)
    58  	assert.Equal(t, 1, len(files))
    59  	assert.Equal(t, kv.DatabaseFileName, files[0].Name())
    60  	restoredDb, err := kv.NewKVStore(context.Background(), path.Join(restoreDir, kv.BeaconNodeDbDirName), &kv.Config{})
    61  	defer func() {
    62  		require.NoError(t, restoredDb.Close())
    63  	}()
    64  	require.NoError(t, err)
    65  	headBlock, err := restoredDb.HeadBlock(ctx)
    66  	require.NoError(t, err)
    67  	assert.Equal(t, types.Slot(5000), headBlock.Block().Slot(), "Restored database has incorrect data")
    68  	assert.LogsContain(t, logHook, "Restore completed successfully")
    69  
    70  }