prysm-pulse/beacon-chain/forkchoice/doubly-linked-tree/unrealized_justification_test.go
Potuz 99997fa2e3
forkchoice changes (#12126)
* forkchoice changes

* gazelle

* remove best justified from forkchoice dump

* keep protobufs and update comment

* remove phase0 tests

* bumb spectests version

* missing sha

* Fix sha256 for spec

* rpc tests

* Mark field 3 as reserved so it will never be used it again

---------

Co-authored-by: terence tsao <terence@prysmaticlabs.com>
Co-authored-by: Preston Van Loon <preston@prysmaticlabs.com>
2023-03-16 14:27:30 -03:00

340 lines
15 KiB
Go

package doublylinkedtree
import (
"context"
"testing"
forkchoicetypes "github.com/prysmaticlabs/prysm/v3/beacon-chain/forkchoice/types"
"github.com/prysmaticlabs/prysm/v3/config/params"
"github.com/prysmaticlabs/prysm/v3/consensus-types/primitives"
"github.com/prysmaticlabs/prysm/v3/testing/require"
)
func TestStore_SetUnrealizedEpochs(t *testing.T) {
f := setup(1, 1)
ctx := context.Background()
state, blkRoot, err := prepareForkchoiceState(ctx, 100, [32]byte{'a'}, params.BeaconConfig().ZeroHash, [32]byte{'A'}, 1, 1)
require.NoError(t, err)
require.NoError(t, f.InsertNode(ctx, state, blkRoot))
state, blkRoot, err = prepareForkchoiceState(ctx, 101, [32]byte{'b'}, [32]byte{'a'}, [32]byte{'B'}, 1, 1)
require.NoError(t, err)
require.NoError(t, f.InsertNode(ctx, state, blkRoot))
state, blkRoot, err = prepareForkchoiceState(ctx, 102, [32]byte{'c'}, [32]byte{'b'}, [32]byte{'C'}, 1, 1)
require.NoError(t, err)
require.NoError(t, f.InsertNode(ctx, state, blkRoot))
require.Equal(t, primitives.Epoch(1), f.store.nodeByRoot[[32]byte{'b'}].unrealizedJustifiedEpoch)
require.Equal(t, primitives.Epoch(1), f.store.nodeByRoot[[32]byte{'b'}].unrealizedFinalizedEpoch)
require.NoError(t, f.store.setUnrealizedJustifiedEpoch([32]byte{'b'}, 2))
require.NoError(t, f.store.setUnrealizedFinalizedEpoch([32]byte{'b'}, 2))
require.Equal(t, primitives.Epoch(2), f.store.nodeByRoot[[32]byte{'b'}].unrealizedJustifiedEpoch)
require.Equal(t, primitives.Epoch(2), f.store.nodeByRoot[[32]byte{'b'}].unrealizedFinalizedEpoch)
require.ErrorIs(t, errInvalidUnrealizedJustifiedEpoch, f.store.setUnrealizedJustifiedEpoch([32]byte{'b'}, 0))
require.ErrorIs(t, errInvalidUnrealizedFinalizedEpoch, f.store.setUnrealizedFinalizedEpoch([32]byte{'b'}, 0))
}
func TestStore_UpdateUnrealizedCheckpoints(t *testing.T) {
f := setup(1, 1)
ctx := context.Background()
state, blkRoot, err := prepareForkchoiceState(ctx, 100, [32]byte{'a'}, params.BeaconConfig().ZeroHash, [32]byte{'A'}, 1, 1)
require.NoError(t, err)
require.NoError(t, f.InsertNode(ctx, state, blkRoot))
state, blkRoot, err = prepareForkchoiceState(ctx, 101, [32]byte{'b'}, [32]byte{'a'}, [32]byte{'B'}, 1, 1)
require.NoError(t, err)
require.NoError(t, f.InsertNode(ctx, state, blkRoot))
state, blkRoot, err = prepareForkchoiceState(ctx, 102, [32]byte{'c'}, [32]byte{'b'}, [32]byte{'C'}, 1, 1)
require.NoError(t, err)
require.NoError(t, f.InsertNode(ctx, state, blkRoot))
}
// Epoch 2 | Epoch 3
//
// |
// C |
// / |
//
// A <-- B |
//
// \ |
// ---- D
//
// B is the first block that justifies A.
func TestStore_LongFork(t *testing.T) {
f := setup(1, 1)
ctx := context.Background()
state, blkRoot, err := prepareForkchoiceState(ctx, 100, [32]byte{'a'}, params.BeaconConfig().ZeroHash, [32]byte{'A'}, 1, 1)
require.NoError(t, err)
require.NoError(t, f.InsertNode(ctx, state, blkRoot))
state, blkRoot, err = prepareForkchoiceState(ctx, 101, [32]byte{'b'}, [32]byte{'a'}, [32]byte{'B'}, 1, 1)
require.NoError(t, err)
require.NoError(t, f.InsertNode(ctx, state, blkRoot))
require.NoError(t, f.store.setUnrealizedJustifiedEpoch([32]byte{'b'}, 2))
state, blkRoot, err = prepareForkchoiceState(ctx, 102, [32]byte{'c'}, [32]byte{'b'}, [32]byte{'C'}, 1, 1)
require.NoError(t, err)
require.NoError(t, f.InsertNode(ctx, state, blkRoot))
require.NoError(t, f.store.setUnrealizedJustifiedEpoch([32]byte{'c'}, 2))
// Add an attestation to c, it is head
f.ProcessAttestation(ctx, []uint64{0}, [32]byte{'c'}, 1)
f.justifiedBalances = []uint64{100}
headRoot, err := f.Head(ctx)
require.NoError(t, err)
require.Equal(t, [32]byte{'c'}, headRoot)
// D is head even though its weight is lower.
ha := [32]byte{'a'}
state, blkRoot, err = prepareForkchoiceState(ctx, 103, [32]byte{'d'}, [32]byte{'b'}, [32]byte{'D'}, 2, 1)
require.NoError(t, err)
require.NoError(t, f.InsertNode(ctx, state, blkRoot))
require.NoError(t, f.UpdateJustifiedCheckpoint(ctx, &forkchoicetypes.Checkpoint{Epoch: 2, Root: ha}))
headRoot, err = f.Head(ctx)
require.NoError(t, err)
require.Equal(t, [32]byte{'d'}, headRoot)
require.Equal(t, uint64(0), f.store.nodeByRoot[[32]byte{'d'}].weight)
require.Equal(t, uint64(100), f.store.nodeByRoot[[32]byte{'c'}].weight)
// Update unrealized justification, c becomes head
require.NoError(t, f.updateUnrealizedCheckpoints(ctx))
headRoot, err = f.Head(ctx)
require.NoError(t, err)
require.Equal(t, [32]byte{'c'}, headRoot)
}
// Epoch 1 Epoch 2 Epoch 3
// | |
// | |
//
// A <-- B <-- C <-- D <-- E <-- F <-- G <-- H |
//
// | \ |
// | --------------- I
// | |
//
// E justifies A. G justifies E.
func TestStore_NoDeadLock(t *testing.T) {
f := setup(0, 0)
ctx := context.Background()
// Epoch 1 blocks
state, blkRoot, err := prepareForkchoiceState(ctx, 100, [32]byte{'a'}, params.BeaconConfig().ZeroHash, [32]byte{'A'}, 0, 0)
require.NoError(t, err)
require.NoError(t, f.InsertNode(ctx, state, blkRoot))
state, blkRoot, err = prepareForkchoiceState(ctx, 101, [32]byte{'b'}, [32]byte{'a'}, [32]byte{'B'}, 0, 0)
require.NoError(t, err)
require.NoError(t, f.InsertNode(ctx, state, blkRoot))
state, blkRoot, err = prepareForkchoiceState(ctx, 102, [32]byte{'c'}, [32]byte{'b'}, [32]byte{'C'}, 0, 0)
require.NoError(t, err)
require.NoError(t, f.InsertNode(ctx, state, blkRoot))
state, blkRoot, err = prepareForkchoiceState(ctx, 103, [32]byte{'d'}, [32]byte{'c'}, [32]byte{'D'}, 0, 0)
require.NoError(t, err)
require.NoError(t, f.InsertNode(ctx, state, blkRoot))
// Epoch 2 Blocks
state, blkRoot, err = prepareForkchoiceState(ctx, 104, [32]byte{'e'}, [32]byte{'d'}, [32]byte{'E'}, 0, 0)
require.NoError(t, err)
require.NoError(t, f.InsertNode(ctx, state, blkRoot))
require.NoError(t, f.store.setUnrealizedJustifiedEpoch([32]byte{'e'}, 1))
state, blkRoot, err = prepareForkchoiceState(ctx, 105, [32]byte{'f'}, [32]byte{'e'}, [32]byte{'F'}, 0, 0)
require.NoError(t, err)
require.NoError(t, f.InsertNode(ctx, state, blkRoot))
require.NoError(t, f.store.setUnrealizedJustifiedEpoch([32]byte{'f'}, 1))
state, blkRoot, err = prepareForkchoiceState(ctx, 106, [32]byte{'g'}, [32]byte{'f'}, [32]byte{'G'}, 0, 0)
require.NoError(t, err)
require.NoError(t, f.InsertNode(ctx, state, blkRoot))
require.NoError(t, f.store.setUnrealizedJustifiedEpoch([32]byte{'g'}, 2))
require.NoError(t, f.store.setUnrealizedFinalizedEpoch([32]byte{'g'}, 1))
f.store.unrealizedJustifiedCheckpoint = &forkchoicetypes.Checkpoint{Epoch: 2}
f.store.unrealizedFinalizedCheckpoint = &forkchoicetypes.Checkpoint{Epoch: 1}
state, blkRoot, err = prepareForkchoiceState(ctx, 107, [32]byte{'h'}, [32]byte{'g'}, [32]byte{'H'}, 0, 0)
require.NoError(t, err)
require.NoError(t, f.InsertNode(ctx, state, blkRoot))
require.NoError(t, f.store.setUnrealizedJustifiedEpoch([32]byte{'h'}, 2))
require.NoError(t, f.store.setUnrealizedFinalizedEpoch([32]byte{'h'}, 1))
// Add an attestation for h
f.ProcessAttestation(ctx, []uint64{0}, [32]byte{'h'}, 1)
// Epoch 3
// Current Head is H
f.justifiedBalances = []uint64{100}
headRoot, err := f.Head(ctx)
require.NoError(t, err)
require.Equal(t, [32]byte{'h'}, headRoot)
require.Equal(t, primitives.Epoch(0), f.JustifiedCheckpoint().Epoch)
// Insert Block I, it becomes Head
hr := [32]byte{'i'}
state, blkRoot, err = prepareForkchoiceState(ctx, 108, hr, [32]byte{'f'}, [32]byte{'I'}, 1, 0)
require.NoError(t, err)
require.NoError(t, f.InsertNode(ctx, state, blkRoot))
ha := [32]byte{'a'}
require.NoError(t, f.UpdateJustifiedCheckpoint(ctx, &forkchoicetypes.Checkpoint{Epoch: 1, Root: ha}))
headRoot, err = f.Head(ctx)
require.NoError(t, err)
require.Equal(t, [32]byte{'i'}, headRoot)
require.Equal(t, primitives.Epoch(1), f.JustifiedCheckpoint().Epoch)
require.Equal(t, primitives.Epoch(0), f.FinalizedCheckpoint().Epoch)
// Realized Justified checkpoints, H becomes head
require.NoError(t, f.updateUnrealizedCheckpoints(ctx))
headRoot, err = f.Head(ctx)
require.NoError(t, err)
require.Equal(t, [32]byte{'h'}, headRoot)
require.Equal(t, primitives.Epoch(2), f.JustifiedCheckpoint().Epoch)
require.Equal(t, primitives.Epoch(1), f.FinalizedCheckpoint().Epoch)
}
// Epoch 2 | Epoch 3
// |
// -- D (late)
// / |
// A <- B <- C |
// \ |
// -- -- -- E <- F <- G <- H
// |
//
// D justifies and comes late.
func TestStore_ForkNextEpoch(t *testing.T) {
f := setup(1, 0)
ctx := context.Background()
// Epoch 1 blocks (D does not arrive)
state, blkRoot, err := prepareForkchoiceState(ctx, 92, [32]byte{'a'}, params.BeaconConfig().ZeroHash, [32]byte{'A'}, 1, 0)
require.NoError(t, err)
require.NoError(t, f.InsertNode(ctx, state, blkRoot))
state, blkRoot, err = prepareForkchoiceState(ctx, 93, [32]byte{'b'}, [32]byte{'a'}, [32]byte{'B'}, 1, 0)
require.NoError(t, err)
require.NoError(t, f.InsertNode(ctx, state, blkRoot))
state, blkRoot, err = prepareForkchoiceState(ctx, 94, [32]byte{'c'}, [32]byte{'b'}, [32]byte{'C'}, 1, 0)
require.NoError(t, err)
require.NoError(t, f.InsertNode(ctx, state, blkRoot))
// Epoch 2 blocks
state, blkRoot, err = prepareForkchoiceState(ctx, 96, [32]byte{'e'}, [32]byte{'c'}, [32]byte{'E'}, 1, 0)
require.NoError(t, err)
require.NoError(t, f.InsertNode(ctx, state, blkRoot))
state, blkRoot, err = prepareForkchoiceState(ctx, 97, [32]byte{'f'}, [32]byte{'e'}, [32]byte{'F'}, 1, 0)
require.NoError(t, err)
require.NoError(t, f.InsertNode(ctx, state, blkRoot))
state, blkRoot, err = prepareForkchoiceState(ctx, 98, [32]byte{'g'}, [32]byte{'f'}, [32]byte{'G'}, 1, 0)
require.NoError(t, err)
require.NoError(t, f.InsertNode(ctx, state, blkRoot))
state, blkRoot, err = prepareForkchoiceState(ctx, 99, [32]byte{'h'}, [32]byte{'g'}, [32]byte{'H'}, 1, 0)
require.NoError(t, err)
require.NoError(t, f.InsertNode(ctx, state, blkRoot))
// Insert an attestation to H, H is head
f.ProcessAttestation(ctx, []uint64{0}, [32]byte{'h'}, 1)
f.justifiedBalances = []uint64{100}
headRoot, err := f.Head(ctx)
require.NoError(t, err)
require.Equal(t, [32]byte{'h'}, headRoot)
require.Equal(t, primitives.Epoch(1), f.JustifiedCheckpoint().Epoch)
// D arrives late, D is head
state, blkRoot, err = prepareForkchoiceState(ctx, 95, [32]byte{'d'}, [32]byte{'c'}, [32]byte{'D'}, 1, 0)
require.NoError(t, err)
require.NoError(t, f.InsertNode(ctx, state, blkRoot))
require.NoError(t, f.store.setUnrealizedJustifiedEpoch([32]byte{'d'}, 2))
f.store.unrealizedJustifiedCheckpoint = &forkchoicetypes.Checkpoint{Epoch: 2}
require.NoError(t, f.updateUnrealizedCheckpoints(ctx))
headRoot, err = f.Head(ctx)
require.NoError(t, err)
require.Equal(t, [32]byte{'d'}, headRoot)
require.Equal(t, primitives.Epoch(2), f.JustifiedCheckpoint().Epoch)
require.Equal(t, uint64(0), f.store.nodeByRoot[[32]byte{'d'}].weight)
require.Equal(t, uint64(100), f.store.nodeByRoot[[32]byte{'h'}].weight)
// Set current epoch to 3, and H's unrealized checkpoint. Check it's head
driftGenesisTime(f, 99, 0)
require.NoError(t, f.store.setUnrealizedJustifiedEpoch([32]byte{'h'}, 2))
headRoot, err = f.Head(ctx)
require.NoError(t, err)
require.Equal(t, [32]byte{'h'}, headRoot)
require.Equal(t, primitives.Epoch(2), f.JustifiedCheckpoint().Epoch)
require.Equal(t, uint64(0), f.store.nodeByRoot[[32]byte{'d'}].weight)
require.Equal(t, uint64(100), f.store.nodeByRoot[[32]byte{'h'}].weight)
}
func TestStore_PullTips_Heuristics(t *testing.T) {
ctx := context.Background()
t.Run("Current epoch is justified", func(tt *testing.T) {
f := setup(1, 1)
st, root, err := prepareForkchoiceState(ctx, 65, [32]byte{'p'}, [32]byte{}, [32]byte{}, 1, 1)
require.NoError(tt, err)
require.NoError(tt, f.InsertNode(ctx, st, root))
f.store.nodeByRoot[[32]byte{'p'}].unrealizedJustifiedEpoch = primitives.Epoch(2)
driftGenesisTime(f, 66, 0)
st, root, err = prepareForkchoiceState(ctx, 66, [32]byte{'h'}, [32]byte{'p'}, [32]byte{}, 1, 1)
require.NoError(tt, err)
require.NoError(tt, f.InsertNode(ctx, st, root))
require.Equal(tt, primitives.Epoch(2), f.store.nodeByRoot[[32]byte{'h'}].unrealizedJustifiedEpoch)
require.Equal(tt, primitives.Epoch(1), f.store.nodeByRoot[[32]byte{'h'}].unrealizedFinalizedEpoch)
})
t.Run("Previous Epoch is justified and too early for current", func(tt *testing.T) {
f := setup(1, 1)
st, root, err := prepareForkchoiceState(ctx, 95, [32]byte{'p'}, [32]byte{}, [32]byte{}, 1, 1)
require.NoError(tt, err)
require.NoError(tt, f.InsertNode(ctx, st, root))
f.store.nodeByRoot[[32]byte{'p'}].unrealizedJustifiedEpoch = primitives.Epoch(2)
driftGenesisTime(f, 96, 0)
st, root, err = prepareForkchoiceState(ctx, 96, [32]byte{'h'}, [32]byte{'p'}, [32]byte{}, 1, 1)
require.NoError(tt, err)
require.NoError(tt, f.InsertNode(ctx, st, root))
require.Equal(tt, primitives.Epoch(2), f.store.nodeByRoot[[32]byte{'h'}].unrealizedJustifiedEpoch)
require.Equal(tt, primitives.Epoch(1), f.store.nodeByRoot[[32]byte{'h'}].unrealizedFinalizedEpoch)
})
t.Run("Previous Epoch is justified and not too early for current", func(tt *testing.T) {
f := setup(1, 1)
st, root, err := prepareForkchoiceState(ctx, 95, [32]byte{'p'}, [32]byte{}, [32]byte{}, 1, 1)
require.NoError(tt, err)
require.NoError(tt, f.InsertNode(ctx, st, root))
f.store.nodeByRoot[[32]byte{'p'}].unrealizedJustifiedEpoch = primitives.Epoch(2)
driftGenesisTime(f, 127, 0)
st, root, err = prepareForkchoiceState(ctx, 127, [32]byte{'h'}, [32]byte{'p'}, [32]byte{}, 1, 1)
require.NoError(tt, err)
require.NoError(tt, f.InsertNode(ctx, st, root))
// Check that the justification point is not the parent's.
// This tests that the heuristics in pullTips did not apply and
// the test continues to compute a bogus unrealized
// justification
require.Equal(tt, primitives.Epoch(1), f.store.nodeByRoot[[32]byte{'h'}].unrealizedJustifiedEpoch)
})
t.Run("Block from previous Epoch", func(tt *testing.T) {
f := setup(1, 1)
st, root, err := prepareForkchoiceState(ctx, 94, [32]byte{'p'}, [32]byte{}, [32]byte{}, 1, 1)
require.NoError(tt, err)
require.NoError(tt, f.InsertNode(ctx, st, root))
f.store.nodeByRoot[[32]byte{'p'}].unrealizedJustifiedEpoch = primitives.Epoch(2)
driftGenesisTime(f, 96, 0)
st, root, err = prepareForkchoiceState(ctx, 95, [32]byte{'h'}, [32]byte{'p'}, [32]byte{}, 1, 1)
require.NoError(tt, err)
require.NoError(tt, f.InsertNode(ctx, st, root))
// Check that the justification point is not the parent's.
// This tests that the heuristics in pullTips did not apply and
// the test continues to compute a bogus unrealized
// justification
require.Equal(tt, primitives.Epoch(1), f.store.nodeByRoot[[32]byte{'h'}].unrealizedJustifiedEpoch)
})
t.Run("Previous Epoch is not justified", func(tt *testing.T) {
f := setup(1, 1)
st, root, err := prepareForkchoiceState(ctx, 128, [32]byte{'p'}, [32]byte{}, [32]byte{}, 2, 1)
require.NoError(tt, err)
require.NoError(tt, f.InsertNode(ctx, st, root))
driftGenesisTime(f, 129, 0)
st, root, err = prepareForkchoiceState(ctx, 129, [32]byte{'h'}, [32]byte{'p'}, [32]byte{}, 2, 1)
require.NoError(tt, err)
require.NoError(tt, f.InsertNode(ctx, st, root))
// Check that the justification point is not the parent's.
// This tests that the heuristics in pullTips did not apply and
// the test continues to compute a bogus unrealized
// justification
require.Equal(tt, primitives.Epoch(2), f.store.nodeByRoot[[32]byte{'h'}].unrealizedJustifiedEpoch)
})
}