Merge pull request #684 from neutron-org/fix/feeburner-genesis-export

fix: Added TotalBurnedNeutronsAmount to genesis Init and Export methods in feeburner

x/feeburner/genesis.go

@@ -10,6 +10,8 @@ import (
 // InitGenesis initializes the module's state from a provided genesis state.
 func InitGenesis(ctx sdk.Context, k keeper.Keeper, genState types.GenesisState) {
 	// this line is used by starport scaffolding # genesis/module/init
+	k.SetTotalBurnedNeutronsAmount(ctx, genState.TotalBurnedNeutronsAmount)
+
 	err := k.SetParams(ctx, genState.Params)
 	if err != nil {
 		panic(err)
@@ -20,6 +22,7 @@ func InitGenesis(ctx sdk.Context, k keeper.Keeper, genState types.GenesisState)
 func ExportGenesis(ctx sdk.Context, k keeper.Keeper) *types.GenesisState {
 	genesis := types.DefaultGenesis()
 	genesis.Params = k.GetParams(ctx)
+	genesis.TotalBurnedNeutronsAmount = k.GetTotalBurnedNeutronsAmount(ctx)
 
 	return genesis
 }

x/feeburner/genesis_test.go

@@ -3,8 +3,10 @@ package feeburner_test
 import (
 	"testing"
 
+	"cosmossdk.io/math"
 	"github.com/neutron-org/neutron/v4/app/config"
 
+	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/stretchr/testify/require"
 
 	"github.com/neutron-org/neutron/v4/testutil/common/nullify"
@@ -16,14 +18,24 @@ import (
 func TestGenesis(t *testing.T) {
 	_ = config.GetDefaultConfig()
 
+	amount := math.NewInt(10)
+
 	genesisState := types.GenesisState{
 		Params: types.DefaultParams(),
+		TotalBurnedNeutronsAmount: types.TotalBurnedNeutronsAmount{
+			Coin: sdk.NewCoin(types.DefaultNeutronDenom, amount),
+		},
 	}
 
 	k, ctx := keeper.FeeburnerKeeper(t)
 	feeburner.InitGenesis(ctx, *k, genesisState)
+
+	burnedTokens := k.GetTotalBurnedNeutronsAmount(ctx)
+	require.Equal(t, amount, burnedTokens.Coin.Amount)
+
 	got := feeburner.ExportGenesis(ctx, *k)
 	require.NotNil(t, got)
+	require.Equal(t, amount, got.TotalBurnedNeutronsAmount.Coin.Amount)
 
 	nullify.Fill(&genesisState)
 	nullify.Fill(got)

x/feeburner/keeper/keeper.go

@@ -81,6 +81,13 @@ func (k Keeper) GetTotalBurnedNeutronsAmount(ctx sdk.Context) types.TotalBurnedN
 	return totalBurnedNeutronsAmount
 }
 
+// SetTotalBurnedNeutronsAmount sets the total burned amount of NTRN tokens
+func (k Keeper) SetTotalBurnedNeutronsAmount(ctx sdk.Context, totalBurnedNeutronsAmount types.TotalBurnedNeutronsAmount) {
+	store := ctx.KVStore(k.storeKey)
+
+	store.Set(KeyBurnedFees, k.cdc.MustMarshal(&totalBurnedNeutronsAmount))
+}
+
 // BurnAndDistribute is an important part of tokenomics. It does few things:
 // 1. Burns NTRN fee coins distributed to consumertypes.ConsumerRedistributeName in ICS (https://github.com/cosmos/interchain-security/blob/86046926502f7b0ba795bebcdd1fdc97ac776573/x/ccv/consumer/keeper/distribution.go#L67)
 // 2. Updates total amount of burned NTRN coins