op-challenger: Fix off by one error when calculating the bottom game depth.

Improve test coverage for Position.RelativeToAncestorAtDepth

op-challenger/game/fault/register.go

@@ -86,12 +86,12 @@ func registerOutputAlphabet(
 			return nil, err
 		}
 		prestateProvider := outputs.NewPrestateProvider(ctx, logger, rollupClient, prestateBlock)
+		splitDepth, err := contract.GetSplitDepth(ctx)
+		if err != nil {
+			return nil, err
+		}
 		creator := func(ctx context.Context, logger log.Logger, gameDepth uint64, dir string) (faultTypes.TraceAccessor, error) {
-			splitDepth, err := contract.GetSplitDepth(ctx)
-			if err != nil {
-				return nil, err
-			}
-			accessor, err := outputs.NewOutputAlphabetTraceAccessor(ctx, logger, m, prestateProvider, rollupClient, gameDepth, splitDepth, prestateBlock, poststateBlock)
+			accessor, err := outputs.NewOutputAlphabetTraceAccessor(logger, m, prestateProvider, rollupClient, splitDepth, prestateBlock, poststateBlock)
 			if err != nil {
 				return nil, err
 			}
@@ -129,7 +129,7 @@ func registerOutputCannon(
 			if err != nil {
 				return nil, fmt.Errorf("failed to load split depth: %w", err)
 			}
-			accessor, err := outputs.NewOutputCannonTraceAccessor(ctx, logger, m, cfg, l2Client, contract, prestateProvider, rollupClient, dir, gameDepth, splitDepth, prestateBlock, poststateBlock)
+			accessor, err := outputs.NewOutputCannonTraceAccessor(logger, m, cfg, l2Client, contract, prestateProvider, rollupClient, dir, splitDepth, prestateBlock, poststateBlock)
 			if err != nil {
 				return nil, err
 			}

op-challenger/game/fault/trace/outputs/output_alphabet.go

@@ -14,20 +14,17 @@ import (
 )
 
 func NewOutputAlphabetTraceAccessor(
-	ctx context.Context,
 	logger log.Logger,
 	m metrics.Metricer,
 	prestateProvider types.PrestateProvider,
 	rollupClient OutputRollupClient,
-	gameDepth uint64,
 	splitDepth uint64,
 	prestateBlock uint64,
 	poststateBlock uint64,
 ) (*trace.Accessor, error) {
-	bottomDepth := gameDepth - splitDepth
 	outputProvider := NewTraceProviderFromInputs(logger, prestateProvider, rollupClient, splitDepth, prestateBlock, poststateBlock)
-	alphabetCreator := func(ctx context.Context, localContext common.Hash, agreed contracts.Proposal, claimed contracts.Proposal) (types.TraceProvider, error) {
-		provider := alphabet.NewTraceProvider(localContext.Hex(), bottomDepth)
+	alphabetCreator := func(ctx context.Context, localContext common.Hash, depth uint64, agreed contracts.Proposal, claimed contracts.Proposal) (types.TraceProvider, error) {
+		provider := alphabet.NewTraceProvider(localContext.Hex(), depth)
 		return provider, nil
 	}
 	cache := NewProviderCache(m, "output_alphabet_provider", alphabetCreator)

op-challenger/game/fault/trace/outputs/output_cannon.go

@@ -17,7 +17,6 @@ import (
 )
 
 func NewOutputCannonTraceAccessor(
-	ctx context.Context,
 	logger log.Logger,
 	m metrics.Metricer,
 	cfg *config.Config,
@@ -26,21 +25,19 @@ func NewOutputCannonTraceAccessor(
 	prestateProvider types.PrestateProvider,
 	rollupClient OutputRollupClient,
 	dir string,
-	gameDepth uint64,
 	splitDepth uint64,
 	prestateBlock uint64,
 	poststateBlock uint64,
 ) (*trace.Accessor, error) {
-	bottomDepth := gameDepth - splitDepth
 	outputProvider := NewTraceProviderFromInputs(logger, prestateProvider, rollupClient, splitDepth, prestateBlock, poststateBlock)
-	cannonCreator := func(ctx context.Context, localContext common.Hash, agreed contracts.Proposal, claimed contracts.Proposal) (types.TraceProvider, error) {
+	cannonCreator := func(ctx context.Context, localContext common.Hash, depth uint64, agreed contracts.Proposal, claimed contracts.Proposal) (types.TraceProvider, error) {
 		logger := logger.New("pre", agreed.OutputRoot, "post", claimed.OutputRoot, "localContext", localContext)
 		subdir := filepath.Join(dir, localContext.Hex())
 		localInputs, err := cannon.FetchLocalInputsFromProposals(ctx, contract, l2Client, agreed, claimed)
 		if err != nil {
 			return nil, fmt.Errorf("failed to fetch cannon local inputs: %w", err)
 		}
-		provider := cannon.NewTraceProvider(logger, m, cfg, localContext, localInputs, subdir, bottomDepth)
+		provider := cannon.NewTraceProvider(logger, m, cfg, localContext, localInputs, subdir, depth)
 		return provider, nil
 	}
 

op-challenger/game/fault/trace/outputs/provider_cache.go

@@ -14,12 +14,12 @@ type ProviderCache struct {
 	creator ProposalTraceProviderCreator
 }
 
-func (c *ProviderCache) GetOrCreate(ctx context.Context, localContext common.Hash, agreed contracts.Proposal, claimed contracts.Proposal) (types.TraceProvider, error) {
+func (c *ProviderCache) GetOrCreate(ctx context.Context, localContext common.Hash, depth uint64, agreed contracts.Proposal, claimed contracts.Proposal) (types.TraceProvider, error) {
 	provider, ok := c.cache.Get(localContext)
 	if ok {
 		return provider, nil
 	}
-	provider, err := c.creator(ctx, localContext, agreed, claimed)
+	provider, err := c.creator(ctx, localContext, depth, agreed, claimed)
 	if err != nil {
 		return nil, err
 	}

op-challenger/game/fault/trace/outputs/provider_cache_test.go

@@ -23,9 +23,10 @@ func TestProviderCache(t *testing.T) {
 		L2BlockNumber: big.NewInt(35),
 		OutputRoot:    common.Hash{0xcc},
 	}
+	depth := uint64(6)
 	var createdProvider types.TraceProvider
-	creator := func(ctx context.Context, localContext common.Hash, agreed contracts.Proposal, claimed contracts.Proposal) (types.TraceProvider, error) {
-		createdProvider = alphabet.NewTraceProvider("abcdef", 6)
+	creator := func(ctx context.Context, localContext common.Hash, depth uint64, agreed contracts.Proposal, claimed contracts.Proposal) (types.TraceProvider, error) {
+		createdProvider = alphabet.NewTraceProvider("abcdef", depth)
 		return createdProvider, nil
 	}
 	localContext1 := common.Hash{0xdd}
@@ -34,20 +35,20 @@ func TestProviderCache(t *testing.T) {
 	cache := NewProviderCache(metrics.NoopMetrics, "test", creator)
 
 	// Create on first call
-	provider1, err := cache.GetOrCreate(context.Background(), localContext1, agreed, claimed)
+	provider1, err := cache.GetOrCreate(context.Background(), localContext1, depth, agreed, claimed)
 	require.NoError(t, err)
 	require.Same(t, createdProvider, provider1, "should return created trace provider")
 
 	// Return the cached provider on subsequent calls.
 	createdProvider = nil
-	cached, err := cache.GetOrCreate(context.Background(), localContext1, agreed, claimed)
+	cached, err := cache.GetOrCreate(context.Background(), localContext1, depth, agreed, claimed)
 	require.NoError(t, err)
 	require.Same(t, provider1, cached, "should return exactly the same instance from cache")
 	require.Nil(t, createdProvider)
 
 	// Create a new provider when the local context is different
 	createdProvider = nil
-	otherProvider, err := cache.GetOrCreate(context.Background(), localContext2, agreed, claimed)
+	otherProvider, err := cache.GetOrCreate(context.Background(), localContext2, depth, agreed, claimed)
 	require.NoError(t, err)
 	require.Same(t, otherProvider, createdProvider, "should return newly created trace provider")
 	require.NotSame(t, otherProvider, provider1, "should not use cached provider for different local context")
@@ -56,20 +57,20 @@ func TestProviderCache(t *testing.T) {
 func TestProviderCache_DoNotCacheErrors(t *testing.T) {
 	callCount := 0
 	providerErr := errors.New("boom")
-	creator := func(ctx context.Context, localContext common.Hash, agreed contracts.Proposal, claimed contracts.Proposal) (types.TraceProvider, error) {
+	creator := func(ctx context.Context, localContext common.Hash, depth uint64, agreed contracts.Proposal, claimed contracts.Proposal) (types.TraceProvider, error) {
 		callCount++
 		return nil, providerErr
 	}
 	localContext1 := common.Hash{0xdd}
 
 	cache := NewProviderCache(metrics.NoopMetrics, "test", creator)
-	provider, err := cache.GetOrCreate(context.Background(), localContext1, contracts.Proposal{}, contracts.Proposal{})
+	provider, err := cache.GetOrCreate(context.Background(), localContext1, 6, contracts.Proposal{}, contracts.Proposal{})
 	require.Nil(t, provider)
 	require.ErrorIs(t, err, providerErr)
 	require.Equal(t, 1, callCount)
 
 	// Should call the creator again on the second attempt
-	provider, err = cache.GetOrCreate(context.Background(), localContext1, contracts.Proposal{}, contracts.Proposal{})
+	provider, err = cache.GetOrCreate(context.Background(), localContext1, 6, contracts.Proposal{}, contracts.Proposal{})
 	require.Nil(t, provider)
 	require.ErrorIs(t, err, providerErr)
 	require.Equal(t, 2, callCount)

op-challenger/game/fault/trace/outputs/split_adapter.go

@@ -12,10 +12,10 @@ import (
 	"github.com/ethereum/go-ethereum/crypto"
 )
 
-type ProposalTraceProviderCreator func(ctx context.Context, localContext common.Hash, agreed contracts.Proposal, claimed contracts.Proposal) (types.TraceProvider, error)
+type ProposalTraceProviderCreator func(ctx context.Context, localContext common.Hash, depth uint64, agreed contracts.Proposal, claimed contracts.Proposal) (types.TraceProvider, error)
 
 func OutputRootSplitAdapter(topProvider *OutputTraceProvider, creator ProposalTraceProviderCreator) split.ProviderCreator {
-	return func(ctx context.Context, pre types.Claim, post types.Claim) (types.TraceProvider, error) {
+	return func(ctx context.Context, depth uint64, pre types.Claim, post types.Claim) (types.TraceProvider, error) {
 		localContext := createLocalContext(pre, post)
 		usePrestateBlock := pre == (types.Claim{})
 		var agreed contracts.Proposal
@@ -47,7 +47,7 @@ func OutputRootSplitAdapter(topProvider *OutputTraceProvider, creator ProposalTr
 			OutputRoot:    post.Value,
 		}
 
-		return creator(ctx, localContext, agreed, claimed)
+		return creator(ctx, localContext, depth, agreed, claimed)
 	}
 }
 

op-challenger/game/fault/trace/outputs/split_adapter_test.go

@@ -82,7 +82,7 @@ func TestOutputRootSplitAdapter(t *testing.T) {
 				OutputRoot:    postClaim.Value,
 			}
 
-			_, err := adapter(context.Background(), preClaim, postClaim)
+			_, err := adapter(context.Background(), 5, preClaim, postClaim)
 			require.ErrorIs(t, err, creatorError)
 			require.Equal(t, createLocalContext(preClaim, postClaim), creator.localContext)
 			require.Equal(t, expectedAgreed, creator.agreed)
@@ -113,7 +113,7 @@ func TestOutputRootSplitAdapter_FromAbsolutePrestate(t *testing.T) {
 		OutputRoot:    postClaim.Value,
 	}
 
-	_, err := adapter(context.Background(), types.Claim{}, postClaim)
+	_, err := adapter(context.Background(), 5, types.Claim{}, postClaim)
 	require.ErrorIs(t, err, creatorError)
 	require.Equal(t, createLocalContext(types.Claim{}, postClaim), creator.localContext)
 	require.Equal(t, expectedAgreed, creator.agreed)
@@ -145,7 +145,7 @@ type capturingCreator struct {
 	claimed      contracts.Proposal
 }
 
-func (c *capturingCreator) Create(_ context.Context, localContext common.Hash, agreed contracts.Proposal, claimed contracts.Proposal) (types.TraceProvider, error) {
+func (c *capturingCreator) Create(_ context.Context, localContext common.Hash, _ uint64, agreed contracts.Proposal, claimed contracts.Proposal) (types.TraceProvider, error) {
 	c.localContext = localContext
 	c.agreed = agreed
 	c.claimed = claimed

op-challenger/game/fault/trace/split/split.go

@@ -14,7 +14,7 @@ var (
 	errRefClaimNotDeepEnough = errors.New("reference claim is not deep enough")
 )
 
-type ProviderCreator func(ctx context.Context, pre types.Claim, post types.Claim) (types.TraceProvider, error)
+type ProviderCreator func(ctx context.Context, depth uint64, pre types.Claim, post types.Claim) (types.TraceProvider, error)
 
 func NewSplitProviderSelector(topProvider types.TraceProvider, topDepth int, bottomProviderCreator ProviderCreator) trace.ProviderSelector {
 	return func(ctx context.Context, game types.Game, ref types.Claim, pos types.Position) (types.TraceProvider, error) {
@@ -56,7 +56,10 @@ func NewSplitProviderSelector(topProvider types.TraceProvider, topDepth int, bot
 				}
 			}
 		}
-		provider, err := bottomProviderCreator(ctx, pre, post)
+		// The top game runs from depth 0 to split depth *inclusive*.
+		// The - 1 here accounts for the fact that the split depth is included in the top game.
+		bottomDepth := game.MaxDepth() - uint64(topDepth) - 1
+		provider, err := bottomProviderCreator(ctx, bottomDepth, pre, post)
 		if err != nil {
 			return nil, err
 		}

op-challenger/game/fault/trace/split/split_test.go

@@ -14,8 +14,8 @@ import (
 )
 
 const (
-	topDepth    = 3
-	bottomDepth = 4
+	gameDepth  = 7
+	splitDepth = 3
 )
 
 func TestUseTopProvider(t *testing.T) {
@@ -25,7 +25,7 @@ func TestUseTopProvider(t *testing.T) {
 	ref := gameBuilder.Game.Claims()[0]
 
 	pos := ref.Position
-	for pos.Depth() <= topDepth {
+	for pos.Depth() <= splitDepth {
 		provider, err := selector(ctx, gameBuilder.Game, ref, ref.Position)
 		require.NoError(t, err)
 		require.Same(t, topProvider, provider)
@@ -40,9 +40,9 @@ func TestErrorWhenRefAboveTopGameLeafButPositionInBottom(t *testing.T) {
 	_, selector, gameBuilder := setupAlphabetSplitSelector(t)
 
 	// Generate claims at depths up to but not including the leaf of the top providers
-	createClaimsToDepth(gameBuilder, topDepth-1)
+	createClaimsToDepth(gameBuilder, splitDepth-1)
 	for _, ref := range gameBuilder.Game.Claims() {
-		pos := types.NewPosition(topDepth+1, big.NewInt(0))
+		pos := types.NewPosition(splitDepth+1, big.NewInt(0))
 		provider, err := selector(ctx, gameBuilder.Game, ref, pos)
 		require.ErrorIsf(t, err, errRefClaimNotDeepEnough, "should not get provider with ref claim at depth: %v", ref.Depth())
 		require.Nil(t, provider)
@@ -140,18 +140,18 @@ func TestBottomProviderAttackingTopLeaf(t *testing.T) {
 				runTest(ref, pos)
 				runTest(ref, pos.Attack())
 				runTest(ref, pos.Defend())
-				if pos.Depth() >= topDepth+bottomDepth {
+				if pos.Depth() >= gameDepth {
 					return
 				}
 
 				// If the ref is the leaf of the top claim, ensure we respect whether the test is setup
 				// to attack or defend the top leaf claim.
-				if ref.Depth() != topDepth || !pos.RightOf(ref.Position) {
+				if ref.Depth() != splitDepth || !pos.RightOf(ref.Position) {
 					gameBuilder.SeqFrom(ref).AttackCorrect()
 					attackRef := latestClaim(gameBuilder)
 					testDescendantClaims(attackRef, attackRef.Position)
 				}
-				if ref.Depth() != topDepth || pos.RightOf(ref.Position) {
+				if ref.Depth() != splitDepth || pos.RightOf(ref.Position) {
 					gameBuilder.SeqFrom(ref).DefendCorrect()
 					defendRef := latestClaim(gameBuilder)
 					testDescendantClaims(defendRef, defendRef.Position)
@@ -284,8 +284,8 @@ func createClaimsToDepth(gameBuilder *test.GameBuilder, depth int) {
 func requireBottomProviderForClaims(t *testing.T, actual types.TraceProvider, expectedPre types.Claim, expectedPost types.Claim) {
 	if expectedPre != (types.Claim{}) {
 		require.Equal(t,
-			new(big.Int).Add(expectedPre.TraceIndex(topDepth), big.NewInt(1)),
-			expectedPost.TraceIndex(topDepth),
+			new(big.Int).Add(expectedPre.TraceIndex(splitDepth), big.NewInt(1)),
+			expectedPost.TraceIndex(splitDepth),
 			"should expect adjacent top level trace indices")
 	}
 
@@ -303,17 +303,17 @@ func asBottomTraceProvider(t *testing.T, actual types.TraceProvider) *bottomTrac
 }
 
 func setupAlphabetSplitSelector(t *testing.T) (*alphabet.AlphabetTraceProvider, trace.ProviderSelector, *test.GameBuilder) {
-	top := alphabet.NewTraceProvider("abcdef", topDepth)
-	bottomCreator := func(ctx context.Context, pre types.Claim, post types.Claim) (types.TraceProvider, error) {
+	top := alphabet.NewTraceProvider("abcdef", splitDepth)
+	bottomCreator := func(ctx context.Context, depth uint64, pre types.Claim, post types.Claim) (types.TraceProvider, error) {
 		return &bottomTraceProvider{
 			pre:                   pre,
 			post:                  post,
-			AlphabetTraceProvider: alphabet.NewTraceProvider(post.Value.Hex(), bottomDepth),
+			AlphabetTraceProvider: alphabet.NewTraceProvider(post.Value.Hex(), depth),
 		}, nil
 	}
-	selector := NewSplitProviderSelector(top, topDepth, bottomCreator)
+	selector := NewSplitProviderSelector(top, splitDepth, bottomCreator)
 
-	claimBuilder := test.NewAlphabetClaimBuilder(t, topDepth+bottomDepth)
+	claimBuilder := test.NewAlphabetClaimBuilder(t, gameDepth)
 	gameBuilder := claimBuilder.GameBuilder(true)
 	return top, selector, gameBuilder
 }

op-challenger/game/fault/types/position_test.go

 package types
 
 import (
+	"fmt"
 	"math"
 	"math/big"
 	"testing"
@@ -145,11 +146,106 @@ func TestRelativeToAncestorAtDepth(t *testing.T) {
 		require.ErrorIs(t, err, ErrPositionDepthTooSmall)
 	})
 
-	t.Run("Success", func(t *testing.T) {
-		pos := NewPosition(2, big.NewInt(1))
-		expectedRelativePosition := NewPosition(1, big.NewInt(1))
-		relativePosition, err := pos.RelativeToAncestorAtDepth(1)
-		require.NoError(t, err)
-		require.Equal(t, expectedRelativePosition, relativePosition)
-	})
+	tests := []struct {
+		gindex         int64
+		newRootDepth   uint64
+		expectedGIndex int64
+	}{
+		{gindex: 5, newRootDepth: 1, expectedGIndex: 3},
+
+		// Depth 0 (should return position unchanged)
+		{gindex: 1, newRootDepth: 0, expectedGIndex: 1},
+		{gindex: 2, newRootDepth: 0, expectedGIndex: 2},
+
+		// Depth 1
+		{gindex: 2, newRootDepth: 1, expectedGIndex: 1},
+		{gindex: 3, newRootDepth: 1, expectedGIndex: 1},
+		{gindex: 4, newRootDepth: 1, expectedGIndex: 2},
+		{gindex: 5, newRootDepth: 1, expectedGIndex: 3},
+		{gindex: 6, newRootDepth: 1, expectedGIndex: 2},
+		{gindex: 7, newRootDepth: 1, expectedGIndex: 3},
+		{gindex: 8, newRootDepth: 1, expectedGIndex: 4},
+		{gindex: 9, newRootDepth: 1, expectedGIndex: 5},
+		{gindex: 10, newRootDepth: 1, expectedGIndex: 6},
+		{gindex: 11, newRootDepth: 1, expectedGIndex: 7},
+		{gindex: 12, newRootDepth: 1, expectedGIndex: 4},
+		{gindex: 13, newRootDepth: 1, expectedGIndex: 5},
+		{gindex: 14, newRootDepth: 1, expectedGIndex: 6},
+		{gindex: 15, newRootDepth: 1, expectedGIndex: 7},
+		{gindex: 16, newRootDepth: 1, expectedGIndex: 8},
+		{gindex: 17, newRootDepth: 1, expectedGIndex: 9},
+		{gindex: 18, newRootDepth: 1, expectedGIndex: 10},
+		{gindex: 19, newRootDepth: 1, expectedGIndex: 11},
+		{gindex: 20, newRootDepth: 1, expectedGIndex: 12},
+		{gindex: 21, newRootDepth: 1, expectedGIndex: 13},
+		{gindex: 22, newRootDepth: 1, expectedGIndex: 14},
+		{gindex: 23, newRootDepth: 1, expectedGIndex: 15},
+		{gindex: 24, newRootDepth: 1, expectedGIndex: 8},
+		{gindex: 25, newRootDepth: 1, expectedGIndex: 9},
+		{gindex: 26, newRootDepth: 1, expectedGIndex: 10},
+		{gindex: 27, newRootDepth: 1, expectedGIndex: 11},
+		{gindex: 28, newRootDepth: 1, expectedGIndex: 12},
+		{gindex: 29, newRootDepth: 1, expectedGIndex: 13},
+		{gindex: 30, newRootDepth: 1, expectedGIndex: 14},
+		{gindex: 31, newRootDepth: 1, expectedGIndex: 15},
+
+		// Depth 2
+		{gindex: 4, newRootDepth: 2, expectedGIndex: 1},
+		{gindex: 5, newRootDepth: 2, expectedGIndex: 1},
+		{gindex: 6, newRootDepth: 2, expectedGIndex: 1},
+		{gindex: 7, newRootDepth: 2, expectedGIndex: 1},
+		{gindex: 8, newRootDepth: 2, expectedGIndex: 2},
+		{gindex: 9, newRootDepth: 2, expectedGIndex: 3},
+		{gindex: 10, newRootDepth: 2, expectedGIndex: 2},
+		{gindex: 11, newRootDepth: 2, expectedGIndex: 3},
+		{gindex: 12, newRootDepth: 2, expectedGIndex: 2},
+		{gindex: 13, newRootDepth: 2, expectedGIndex: 3},
+		{gindex: 14, newRootDepth: 2, expectedGIndex: 2},
+		{gindex: 15, newRootDepth: 2, expectedGIndex: 3},
+	}
+
+	for _, test := range tests {
+		test := test
+		t.Run(fmt.Sprintf("From %v SplitAt %v", test.gindex, test.newRootDepth), func(t *testing.T) {
+			pos := NewPositionFromGIndex(big.NewInt(test.gindex))
+			expectedRelativePosition := NewPositionFromGIndex(big.NewInt(test.expectedGIndex))
+			relativePosition, err := pos.RelativeToAncestorAtDepth(test.newRootDepth)
+			require.NoError(t, err)
+			require.Equal(t, expectedRelativePosition.ToGIndex(), relativePosition.ToGIndex())
+		})
+	}
+}
+
+func TestRelativeMoves(t *testing.T) {
+	tests := []func(pos Position) Position{
+		func(pos Position) Position {
+			return pos.Attack()
+		},
+		func(pos Position) Position {
+			return pos.Defend()
+		},
+		func(pos Position) Position {
+			return pos.Attack().Attack()
+		},
+		func(pos Position) Position {
+			return pos.Defend().Defend()
+		},
+		func(pos Position) Position {
+			return pos.Attack().Defend()
+		},
+		func(pos Position) Position {
+			return pos.Defend().Attack()
+		},
+	}
+	for _, test := range tests {
+		test := test
+		t.Run("", func(t *testing.T) {
+			expectedRelativePosition := test(NewPositionFromGIndex(big.NewInt(1)))
+			relative := NewPositionFromGIndex(big.NewInt(3))
+			start := test(relative)
+			relativePosition, err := start.RelativeToAncestorAtDepth(uint64(relative.Depth()))
+			require.NoError(t, err)
+			require.Equal(t, expectedRelativePosition.ToGIndex(), relativePosition.ToGIndex())
+		})
+	}
 }

op-e2e/e2eutils/disputegame/output_cannon_helper.go

@@ -56,12 +56,11 @@ func (g *OutputCannonGameHelper) CreateHonestActor(ctx context.Context, l2Node s
 	prestateBlock, poststateBlock, err := contract.GetBlockRange(ctx)
 	g.require.NoError(err, "Failed to load block range")
 	dir := filepath.Join(cfg.Datadir, "honest")
-	maxDepth := uint64(g.MaxDepth(ctx))
 	splitDepth := uint64(g.SplitDepth(ctx))
 	rollupClient := g.system.RollupClient(l2Node)
 	prestateProvider := outputs.NewPrestateProvider(ctx, logger, rollupClient, prestateBlock)
 	accessor, err := outputs.NewOutputCannonTraceAccessor(
-		ctx, logger, metrics.NoopMetrics, cfg, l2Client, contract, prestateProvider, rollupClient, dir, maxDepth, splitDepth, prestateBlock, poststateBlock)
+		logger, metrics.NoopMetrics, cfg, l2Client, contract, prestateProvider, rollupClient, dir, splitDepth, prestateBlock, poststateBlock)
 	g.require.NoError(err, "Failed to create output cannon trace accessor")
 	return &OutputHonestHelper{
 		t:            g.t,

op-e2e/faultproofs/output_cannon_test.go

@@ -72,7 +72,7 @@ func TestOutputCannonDisputeGame(t *testing.T) {
 	}{
 		{"StepFirst", 0},
 		{"StepMiddle", 28},
-		{"StepInExtension", 2},
+		{"StepInExtension", 1},
 	}
 	for _, test := range tests {
 		test := test