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Fix finality update bugs & Move broadcast logic to LC Store (#15540)

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* fix IsBetterFinalityUpdate and add tests

fix finality update bugs

* Update lightclient.go

Co-authored-by: Radosław Kapka <rkapka@wp.pl>

* Update beacon-chain/core/light-client/lightclient.go

---------

Co-authored-by: Radosław Kapka <rkapka@wp.pl>
This commit is contained in:
Bastin
2025-08-01 14:35:21 +02:00
committed by GitHub
parent f330021785
commit ae4b982a6c
21 changed files with 336 additions and 105 deletions
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36
beacon-chain/blockchain/process_block_test.go
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@@ -3170,7 +3170,7 @@ func TestProcessLightClientOptimisticUpdate(t *testing.T) {
t.Run(version.String(testVersion)+"_"+tc.name, func(t *testing.T) {
s.genesisTime = time.Unix(time.Now().Unix()-(int64(forkEpoch)*int64(params.BeaconConfig().SlotsPerEpoch)*int64(params.BeaconConfig().SecondsPerSlot)), 0)
s.lcStore = &lightClient.Store{}
s.lcStore = lightClient.NewLightClientStore(s.cfg.BeaconDB, s.cfg.P2P, s.cfg.StateNotifier.StateFeed())
var oldActualUpdate interfaces.LightClientOptimisticUpdate
var err error
@@ -3246,39 +3246,39 @@ func TestProcessLightClientFinalityUpdate(t *testing.T) {
expectReplace: true,
},
{
name: "Old update is better - age - no supermajority",
name: "Old update is better - finalized slot is higher",
oldOptions: []util.LightClientOption{util.WithIncreasedFinalizedSlot(1)},
newOptions: []util.LightClientOption{},
expectReplace: false,
},
{
name: "Old update is better - age - both supermajority",
oldOptions: []util.LightClientOption{util.WithIncreasedFinalizedSlot(1), util.WithSupermajority()},
newOptions: []util.LightClientOption{util.WithSupermajority()},
expectReplace: false,
},
{
name: "Old update is better - supermajority",
oldOptions: []util.LightClientOption{util.WithSupermajority()},
name: "Old update is better - attested slot is higher",
oldOptions: []util.LightClientOption{util.WithIncreasedAttestedSlot(1)},
newOptions: []util.LightClientOption{},
expectReplace: false,
},
{
name: "New update is better - age - both supermajority",
oldOptions: []util.LightClientOption{util.WithSupermajority()},
newOptions: []util.LightClientOption{util.WithIncreasedFinalizedSlot(1), util.WithSupermajority()},
name: "Old update is better - signature slot is higher",
oldOptions: []util.LightClientOption{util.WithIncreasedSignatureSlot(1)},
newOptions: []util.LightClientOption{},
expectReplace: false,
},
{
name: "New update is better - finalized slot is higher",
oldOptions: []util.LightClientOption{},
newOptions: []util.LightClientOption{util.WithIncreasedAttestedSlot(1)},
expectReplace: true,
},
{
name: "New update is better - age - no supermajority",
name: "New update is better - attested slot is higher",
oldOptions: []util.LightClientOption{},
newOptions: []util.LightClientOption{util.WithIncreasedFinalizedSlot(1)},
newOptions: []util.LightClientOption{util.WithIncreasedAttestedSlot(1)},
expectReplace: true,
},
{
name: "New update is better - supermajority",
name: "New update is better - signature slot is higher",
oldOptions: []util.LightClientOption{},
newOptions: []util.LightClientOption{util.WithSupermajority()},
newOptions: []util.LightClientOption{util.WithIncreasedSignatureSlot(1)},
expectReplace: true,
},
}
@@ -3310,7 +3310,7 @@ func TestProcessLightClientFinalityUpdate(t *testing.T) {
t.Run(version.String(testVersion)+"_"+tc.name, func(t *testing.T) {
s.genesisTime = time.Unix(time.Now().Unix()-(int64(forkEpoch)*int64(params.BeaconConfig().SlotsPerEpoch)*int64(params.BeaconConfig().SecondsPerSlot)), 0)
s.lcStore = &lightClient.Store{}
s.lcStore = lightClient.NewLightClientStore(s.cfg.BeaconDB, s.cfg.P2P, s.cfg.StateNotifier.StateFeed())
var actualOldUpdate, actualNewUpdate interfaces.LightClientFinalityUpdate
var err error