spectests: Add Fulu proposer lookahead epoch processing tests (#15667)

beacon-chain/core/fulu/transition.go

@@ -16,10 +16,10 @@ func ProcessEpoch(ctx context.Context, state state.BeaconState) error {
 	if err := electra.ProcessEpoch(ctx, state); err != nil {
 		return errors.Wrap(err, "could not process epoch in fulu transition")
 	}
-	return processProposerLookahead(ctx, state)
+	return ProcessProposerLookahead(ctx, state)
 }
 
-func processProposerLookahead(ctx context.Context, state state.BeaconState) error {
+func ProcessProposerLookahead(ctx context.Context, state state.BeaconState) error {
 	_, span := trace.StartSpan(ctx, "fulu.processProposerLookahead")
 	defer span.End()
 

changelog/ttsao_add-fulu-proposer-lookahead-tests.md

@@ -0,0 +1,3 @@
+### Added
+
+- Fulu proposer lookahead epoch processing tests for mainnet and minimal configurations

specrefs/functions.yml

@@ -6588,7 +6588,7 @@
 - name: process_proposer_lookahead
   sources:
     - file: beacon-chain/core/fulu/transition.go
-      search: func processProposerLookahead(
+      search: func ProcessProposerLookahead(
   spec: |
     <spec fn="process_proposer_lookahead" fork="fulu" hash="3ff130cc">
     def process_proposer_lookahead(state: BeaconState) -> None:

testing/spectest/mainnet/BUILD.bazel

@@ -169,6 +169,7 @@ go_test(
         "fulu__epoch_processing__participation_flag_updates_test.go",
         "fulu__epoch_processing__pending_consolidations_test.go",
         "fulu__epoch_processing__pending_deposits_updates_test.go",
+        "fulu__epoch_processing__proposer_lookahead_test.go",
         "fulu__epoch_processing__randao_mixes_reset_test.go",
         "fulu__epoch_processing__registry_updates_test.go",
         "fulu__epoch_processing__rewards_and_penalties_test.go",

testing/spectest/mainnet/fulu__epoch_processing__proposer_lookahead_test.go

@@ -0,0 +1,11 @@
+package mainnet
+
+import (
+	"testing"
+
+	"github.com/OffchainLabs/prysm/v6/testing/spectest/shared/fulu/epoch_processing"
+)
+
+func TestMainnet_fulu_EpochProcessing_ProposerLookahead(t *testing.T) {
+	epoch_processing.RunProposerLookaheadTests(t, "mainnet")
+}

testing/spectest/minimal/BUILD.bazel

@@ -174,6 +174,7 @@ go_test(
         "fulu__epoch_processing__participation_flag_updates_test.go",
         "fulu__epoch_processing__pending_consolidations_test.go",
         "fulu__epoch_processing__pending_deposits_updates_test.go",
+        "fulu__epoch_processing__proposer_lookahead_test.go",
         "fulu__epoch_processing__randao_mixes_reset_test.go",
         "fulu__epoch_processing__registry_updates_test.go",
         "fulu__epoch_processing__rewards_and_penalties_test.go",

testing/spectest/minimal/fulu__epoch_processing__proposer_lookahead_test.go

@@ -0,0 +1,11 @@
+package minimal
+
+import (
+	"testing"
+
+	"github.com/OffchainLabs/prysm/v6/testing/spectest/shared/fulu/epoch_processing"
+)
+
+func TestMinimal_fulu_EpochProcessing_ProposerLookahead(t *testing.T) {
+	epoch_processing.RunProposerLookaheadTests(t, "minimal")
+}

testing/spectest/shared/fulu/epoch_processing/BUILD.bazel

@@ -13,6 +13,7 @@ go_library(
         "participation_flag_updates.go",
         "pending_consolidations.go",
         "pending_deposit_updates.go",
+        "proposer_lookahead.go",
         "randao_mixes_reset.go",
         "registry_updates.go",
         "rewards_and_penalties.go",
@@ -25,6 +26,7 @@ go_library(
     deps = [
         "//beacon-chain/core/electra:go_default_library",
         "//beacon-chain/core/epoch/precompute:go_default_library",
+        "//beacon-chain/core/fulu:go_default_library",
         "//beacon-chain/core/helpers:go_default_library",
         "//beacon-chain/state:go_default_library",
         "//beacon-chain/state/state-native:go_default_library",

testing/spectest/shared/fulu/epoch_processing/proposer_lookahead.go

@@ -0,0 +1,33 @@
+package epoch_processing
+
+import (
+	"path"
+	"testing"
+
+	"github.com/OffchainLabs/prysm/v6/beacon-chain/core/fulu"
+	"github.com/OffchainLabs/prysm/v6/beacon-chain/state"
+	"github.com/OffchainLabs/prysm/v6/testing/require"
+	"github.com/OffchainLabs/prysm/v6/testing/spectest/utils"
+)
+
+// RunProposerLookaheadTests executes "epoch_processing/proposer_lookahead" tests.
+func RunProposerLookaheadTests(t *testing.T, config string) {
+	require.NoError(t, utils.SetConfig(t, config))
+
+	testFolders, testsFolderPath := utils.TestFolders(t, config, "fulu", "epoch_processing/proposer_lookahead/pyspec_tests")
+	for _, folder := range testFolders {
+		t.Run(folder.Name(), func(t *testing.T) {
+			folderPath := path.Join(testsFolderPath, folder.Name())
+			RunEpochOperationTest(t, folderPath, processProposerLookaheadWrapper)
+		})
+	}
+}
+
+func processProposerLookaheadWrapper(t *testing.T, st state.BeaconState) (state.BeaconState, error) {
+	ctx := t.Context()
+	err := fulu.ProcessProposerLookahead(ctx, st)
+	if err != nil {
+		return nil, err
+	}
+	return st, nil
+}