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Rollback Block During Processing (#14554)

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* Change it to rollback

* Spacing

* Reverse order of rollback

* Add Rollback Test

* Potuz's Test Suggestion

* Potuz's Suggestion
This commit is contained in:
Nishant Das
2024-10-28 22:06:20 +08:00
committed by GitHub
parent 09accc7132
commit 2fe8614115
3 changed files with 67 additions and 0 deletions
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53
beacon-chain/blockchain/process_block_test.go
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@@ -2293,6 +2293,59 @@ func Test_getFCUArgs(t *testing.T) {
require.Equal(t, cfg.roblock.Root(), fcuArgs.headRoot)
}
func TestRollbackBlock(t *testing.T) {
service, tr := minimalTestService(t)
ctx := tr.ctx
st, keys := util.DeterministicGenesisState(t, 64)
stateRoot, err := st.HashTreeRoot(ctx)
require.NoError(t, err, "Could not hash genesis state")
require.NoError(t, service.saveGenesisData(ctx, st))
genesis := blocks.NewGenesisBlock(stateRoot[:])
wsb, err := consensusblocks.NewSignedBeaconBlock(genesis)
require.NoError(t, err)
require.NoError(t, service.cfg.BeaconDB.SaveBlock(ctx, wsb), "Could not save genesis block")
parentRoot, err := genesis.Block.HashTreeRoot()
require.NoError(t, err, "Could not get signing root")
require.NoError(t, service.cfg.BeaconDB.SaveState(ctx, st, parentRoot), "Could not save genesis state")
require.NoError(t, service.cfg.BeaconDB.SaveHeadBlockRoot(ctx, parentRoot), "Could not save genesis state")
st, err = service.HeadState(ctx)
require.NoError(t, err)
b, err := util.GenerateFullBlock(st, keys, util.DefaultBlockGenConfig(), 1)
require.NoError(t, err)
wsb, err = consensusblocks.NewSignedBeaconBlock(b)
require.NoError(t, err)
root, err := b.Block.HashTreeRoot()
require.NoError(t, err)
preState, err := service.getBlockPreState(ctx, wsb.Block())
require.NoError(t, err)
postState, err := service.validateStateTransition(ctx, preState, wsb)
require.NoError(t, err)
require.NoError(t, service.savePostStateInfo(ctx, root, wsb, postState))
require.Equal(t, true, service.cfg.BeaconDB.HasBlock(ctx, root))
hasState, err := service.cfg.StateGen.HasState(ctx, root)
require.NoError(t, err)
require.Equal(t, true, hasState)
// Set invalid parent root to trigger forkchoice error.
wsb.SetParentRoot([]byte("bad"))
roblock, err := consensusblocks.NewROBlockWithRoot(wsb, root)
require.NoError(t, err)
// Rollback block insertion into db and caches.
require.ErrorContains(t, fmt.Sprintf("could not insert block %d to fork choice store", roblock.Block().Slot()), service.postBlockProcess(&postBlockProcessConfig{ctx, roblock, [32]byte{}, postState, false}))
// The block should no longer exist.
require.Equal(t, false, service.cfg.BeaconDB.HasBlock(ctx, root))
hasState, err = service.cfg.StateGen.HasState(ctx, root)
require.NoError(t, err)
require.Equal(t, false, hasState)
}
func fakeCommitments(n int) [][]byte {
f := make([][]byte, n)
for i := range f {