fix(sequencers): get by cons addr in all scenarios on EVM (#319)

app/app.go

@@ -486,7 +486,9 @@ func NewRollapp(
 
 	app.EvmKeeper = evmkeeper.NewKeeper(
 		appCodec, keys[evmtypes.StoreKey], tkeys[evmtypes.TransientKey], authtypes.NewModuleAddress(govtypes.ModuleName),
-		app.AccountKeeper, app.BankKeeper, app.SequencersKeeper, app.FeeMarketKeeper,
+		app.AccountKeeper, app.BankKeeper,
+		EVMWrappedSeqKeeper{app.SequencersKeeper},
+		app.FeeMarketKeeper,
 		tracer, app.GetSubspace(evmtypes.ModuleName),
 	)
 

app/evm_sequencers_keeper.go

@@ -0,0 +1,31 @@
+package app
+
+import (
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	"github.com/cosmos/cosmos-sdk/types/bech32"
+	stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types"
+	seqkeeper "github.com/dymensionxyz/dymension-rdk/x/sequencers/keeper"
+	evmtypes "github.com/evmos/evmos/v12/x/evm/types"
+)
+
+// EVMWrappedSeqKeeper adapts values returned by sequencer keeper. It makes sure a valid validator object is always returned.
+// The operator addr of the object will be used in as the EVM 'coinbase' param.
+type EVMWrappedSeqKeeper struct {
+	seqkeeper.Keeper
+}
+
+var _ evmtypes.StakingKeeper = &EVMWrappedSeqKeeper{}
+
+func (w EVMWrappedSeqKeeper) GetValidatorByConsAddr(ctx sdk.Context, consAddr sdk.ConsAddress) (validator stakingtypes.Validator, found bool) {
+	ret, ok := w.Keeper.GetValidatorByConsAddr(ctx, consAddr)
+	if !ok {
+		ret = w.generateValidator()
+	}
+	return ret, true
+}
+
+func (w EVMWrappedSeqKeeper) generateValidator() stakingtypes.Validator {
+	pref := sdk.GetConfig().GetBech32ValidatorAddrPrefix()
+	operator, _ := bech32.ConvertAndEncode(pref, []byte("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"))
+	return stakingtypes.Validator{OperatorAddress: operator}
+}

app/evm_sequencers_keeper_test.go

@@ -0,0 +1,15 @@
+package app
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestEVMWrappedSeqKeeper_generateValidator(t *testing.T) {
+	k := EVMWrappedSeqKeeper{}
+	v := k.generateValidator()
+	require.NotPanics(t, func() {
+		_ = v.GetOperator()
+	})
+}