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

     1  package kv
     2  
     3  import (
     4  	"context"
     5  	"io/ioutil"
     6  	"os"
     7  	"path/filepath"
     8  	"testing"
     9  
    10  	types "github.com/prysmaticlabs/eth2-types"
    11  	"github.com/prysmaticlabs/prysm/proto/eth/v1alpha1/wrapper"
    12  	"github.com/prysmaticlabs/prysm/shared/testutil"
    13  	"github.com/prysmaticlabs/prysm/shared/testutil/require"
    14  )
    15  
    16  func TestStore_Backup(t *testing.T) {
    17  	db, err := NewKVStore(context.Background(), t.TempDir(), &Config{})
    18  	require.NoError(t, err, "Failed to instantiate DB")
    19  	ctx := context.Background()
    20  
    21  	head := testutil.NewBeaconBlock()
    22  	head.Block.Slot = 5000
    23  
    24  	require.NoError(t, db.SaveBlock(ctx, wrapper.WrappedPhase0SignedBeaconBlock(head)))
    25  	root, err := head.Block.HashTreeRoot()
    26  	require.NoError(t, err)
    27  	st, err := testutil.NewBeaconState()
    28  	require.NoError(t, err)
    29  	require.NoError(t, db.SaveState(ctx, st, root))
    30  	require.NoError(t, db.SaveHeadBlockRoot(ctx, root))
    31  
    32  	require.NoError(t, db.Backup(ctx, "", false))
    33  
    34  	backupsPath := filepath.Join(db.databasePath, backupsDirectoryName)
    35  	files, err := ioutil.ReadDir(backupsPath)
    36  	require.NoError(t, err)
    37  	require.NotEqual(t, 0, len(files), "No backups created")
    38  	require.NoError(t, db.Close(), "Failed to close database")
    39  
    40  	oldFilePath := filepath.Join(backupsPath, files[0].Name())
    41  	newFilePath := filepath.Join(backupsPath, DatabaseFileName)
    42  	// We rename the file to match the database file name
    43  	// our NewKVStore function expects when opening a database.
    44  	require.NoError(t, os.Rename(oldFilePath, newFilePath))
    45  
    46  	backedDB, err := NewKVStore(ctx, backupsPath, &Config{})
    47  	require.NoError(t, err, "Failed to instantiate DB")
    48  	t.Cleanup(func() {
    49  		require.NoError(t, backedDB.Close(), "Failed to close database")
    50  	})
    51  	require.Equal(t, true, backedDB.HasState(ctx, root))
    52  }
    53  
    54  func TestStore_BackupMultipleBuckets(t *testing.T) {
    55  	db, err := NewKVStore(context.Background(), t.TempDir(), &Config{})
    56  	require.NoError(t, err, "Failed to instantiate DB")
    57  	ctx := context.Background()
    58  
    59  	startSlot := types.Slot(5000)
    60  
    61  	for i := startSlot; i < 5200; i++ {
    62  		head := testutil.NewBeaconBlock()
    63  		head.Block.Slot = i
    64  		require.NoError(t, db.SaveBlock(ctx, wrapper.WrappedPhase0SignedBeaconBlock(head)))
    65  		root, err := head.Block.HashTreeRoot()
    66  		require.NoError(t, err)
    67  		st, err := testutil.NewBeaconState()
    68  		require.NoError(t, st.SetSlot(i))
    69  		require.NoError(t, err)
    70  		require.NoError(t, db.SaveState(ctx, st, root))
    71  		require.NoError(t, db.SaveHeadBlockRoot(ctx, root))
    72  	}
    73  
    74  	require.NoError(t, db.Backup(ctx, "", false))
    75  
    76  	backupsPath := filepath.Join(db.databasePath, backupsDirectoryName)
    77  	files, err := ioutil.ReadDir(backupsPath)
    78  	require.NoError(t, err)
    79  	require.NotEqual(t, 0, len(files), "No backups created")
    80  	require.NoError(t, db.Close(), "Failed to close database")
    81  
    82  	oldFilePath := filepath.Join(backupsPath, files[0].Name())
    83  	newFilePath := filepath.Join(backupsPath, DatabaseFileName)
    84  	// We rename the file to match the database file name
    85  	// our NewKVStore function expects when opening a database.
    86  	require.NoError(t, os.Rename(oldFilePath, newFilePath))
    87  
    88  	backedDB, err := NewKVStore(ctx, backupsPath, &Config{})
    89  	require.NoError(t, err, "Failed to instantiate DB")
    90  	t.Cleanup(func() {
    91  		require.NoError(t, backedDB.Close(), "Failed to close database")
    92  	})
    93  	for i := startSlot; i < 5200; i++ {
    94  		head := testutil.NewBeaconBlock()
    95  		head.Block.Slot = i
    96  		root, err := head.Block.HashTreeRoot()
    97  		require.NoError(t, err)
    98  		nBlock, err := backedDB.Block(ctx, root)
    99  		require.NoError(t, err)
   100  		require.NotNil(t, nBlock)
   101  		require.Equal(t, nBlock.Block().Slot(), i)
   102  		nState, err := backedDB.State(ctx, root)
   103  		require.NoError(t, err)
   104  		require.NotNil(t, nState)
   105  		require.Equal(t, nState.Slot(), i)
   106  	}
   107  }