feat!: IBC v2 (#95)

* feat: bump up ibc-go from v8 to v10 (#51)

* bump up ibc-go from v8 to v10

- bumped up ibc-go from v8 to v10
- removed unused ibc test codes because bumping unused testing codes are wasting time. we should use ibc testing package instead.

* add ibc v1 transfer test

added ibc v1 test cases to make sure ExampleChain works with ibc v1.
disabled basefee param as default for ExampleChain to make test easier.

* add ibc v2 components (module, middleware)

- added ibc v2 components
- copied basic v2 test cases from ibc-go v10 to make sure v2 components of ExampleChain works well.

* add nil checks and convert erc20 keeper to interface in IBCMiddleware

- added nil checks for app and keeper in NewIBCMiddleware to prevent nil pointer dereference.
- changed erc20 keeper from struct to interface type to enable proper nil checking.

* copy and modify from ibc-go testing

To test certain key scenarios involving EVM messages (e.g., deploying an ERC20 contract), we needed a block header context with a proposer address. This required:
- A custom `TestChain` to handle these messages.
- A custom `SignAndDeliver` function to support the transaction signing and delivery process.
- A custom `Coordinator` to integrate this tailored `TestChain`.

Since `TestChain` and `SignAndDeliver` are directly or indirectly tied to most components in the testing package, and ibc-go cannot use a `TestChain` struct defined in our separate package, we had to copy and adapt nearly all related files to ensure compatibility and functionality.

* fix: ci issues

* replace deprecated functions

* revert disable base fee

Disabling the base fee to simplify testing is not ideal for a reference chain intended for developers building EVM-compatible chains. Ethereum relies on a fee market mechanism, and as a reference implementation, this chain should enable it by default to align with expected behavior.

* update TestGetReceivedCoin

Updated TestGetReceivedCoin to use the newly introduced interface instead of hardcoded strings.
This improves maintainability by making the test logic more aligned with the actual send/receive flow.
It also enhances readability and helps developers better understand how denoms are constructed and handled in real IBC transfers.

* bump up ibc-go from v10.1.0 to v10.1.1

* tests: add ibc test cases (#63)

* add basic test cases for ibc middleware v1, v2

more test cases will be added.

* add test cases for ibc middleware v2

* add test cases for ibc middleware v1 and post state check

* add OnAcknowledgementPacket tc for v1 ibc middleware

* add OnTimeoutPacket tc for v1 ibc middleware

* chore: unify variable names

* use internal testing pkg and add TestOnRecvPacketNativeErc20 tc

* add v1 tcs for handling erc20 native coin

OnTimeoutPacket, OnAcknowledgementPacket

* refactor v1 middleware test codes

* apply gci

* fix ci: receiver name should be same

* fix ci: unify receiver name

and also update comments and variable name

* fix ci: run gofumpt and remove tc copy

* test: update TestOnRecvPacket

make sure whether it is registered as dynamic precompiled contract or not

* chore: test suite name convention

* fix!: replace erc20 prefix (#92)

* replace erc20 native coin's prefix

from: erc20/
to: erc20

* change prefix to erc20:

* don't allow legacy format

ValidateErc20Denom is not used anywhere except test code, but what if it is used from somewhere else in the future?

We shouldn't treat legacy format as valid.

* fix!: ensure ics20 precompile on ibc v1 and v2 and add test cases (#74)

* test: WIP debugging ibc e2e test

* fix: ics20 precompile receiver addr to bech32, not bech32

* test: add erc20 case for ics20 v1 e2e test

(cherry picked from commit 2737b63160d9cefcad52cf86048638a861a478a5)

* test: add ibc v2 relayer logic on testing package, add v2 ics20 precompile test cases

(cherry picked from commit 886fdb7581cdcd0dcce15592aae0d8206e78a783)

* chore: fix lint Useless assignment to local variable

* fix!: denom trace to denom for ibc v8 -> v10 breaking changes

* fix!: tmp cherry-pick to remove erc20/ Prefix in Native ERC20 Coin Denoms #92

320236a

* test: add native erc20 case on ics20 precompile e2e test

(cherry picked from commit d8db271)

* chore: fix lint

(cherry picked from commit 0d998cefc0c5bb57c396c01544b3ebe610f8a510)

* fix: update comments on ics20.sol

* refactor: Improve variable name clarity, apply suggestions

* Revert "fix!: tmp cherry-pick to remove erc20/ Prefix in Native ERC20 Coin Denoms #92"

This reverts commit e5afb56.

* chore: update omitted contracts json by make contracts-all

* docs: update CHANGELOG.md

* tests: add erc20 native coin test cases for ibc v2 middleware (#96)

* add OnRecvPacketNativeERC20 test case

test scenario where evm chain receives erc20 native coin through IBC

* add OnTimeoutPacketNativeERC20 test case

* fix ci and comments

* fix test case

* fix: apply review comments, add testcases, error handling

---------

Co-authored-by: Hyunwoo Lee <[email protected]>
Co-authored-by: Vlad J <[email protected]>

Author: 3 people

CHANGELOG.md

@@ -7,6 +7,7 @@
 - [\#31](https://github.com/cosmos/evm/pull/31) Migrated example_chain to evmd
 - Migrated evmos/go-ethereum to cosmos/go-ethereum
 - Migrated evmos/cosmos-sdk to cosmos/cosmos-sdk
+- [\#95](https://github.com/cosmos/evm/pull/95) Bump up ibc-go from v8 to v10
 
 ### BUG FIXES
 
@@ -24,9 +25,11 @@
 - Renamed protobuf files from evmos to cosmos org
 - [\#83](https://github.com/cosmos/evm/pull/83) Remove base fee v1 from x/feemarket
 - [\#93](https://github.com/cosmos/evm/pull/93) Remove legacy subspaces
+- [\#95](https://github.com/cosmos/evm/pull/95) Replaced erc20/ with erc20 in native ERC20 denoms prefix for IBC v2
 
 ### API-Breaking
 
 - Refactored evmos/os into cosmos/evm
 - Renamed x/evm to x/vm
 - Renamed protobuf files from evmos to cosmos org
+- [\#95](https://github.com/cosmos/evm/pull/95) Updated ics20 precompile to use Denom instead of DenomTrace for IBC v2

ante/evm/utils_test.go

@@ -14,8 +14,8 @@ import (
 	"github.com/cosmos/evm/testutil"
 	utiltx "github.com/cosmos/evm/testutil/tx"
 	evmtypes "github.com/cosmos/evm/x/vm/types"
-	ibctypes "github.com/cosmos/ibc-go/v8/modules/apps/transfer/types"
-	ibcclienttypes "github.com/cosmos/ibc-go/v8/modules/core/02-client/types"
+	ibctypes "github.com/cosmos/ibc-go/v10/modules/apps/transfer/types"
+	ibcclienttypes "github.com/cosmos/ibc-go/v10/modules/core/02-client/types"
 
 	sdkmath "cosmossdk.io/math"
 	storetypes "cosmossdk.io/store/types"

cmd/evmd/cmd/root.go

@@ -17,6 +17,7 @@ import (
 	evmdconfig "github.com/cosmos/evm/cmd/evmd/config"
 	cosmosevmkeyring "github.com/cosmos/evm/crypto/keyring"
 	"github.com/cosmos/evm/evmd"
+	"github.com/cosmos/evm/evmd/testutil"
 	cosmosevmserver "github.com/cosmos/evm/server"
 	cosmosevmserverconfig "github.com/cosmos/evm/server/config"
 	srvflags "github.com/cosmos/evm/server/flags"
@@ -38,6 +39,7 @@ import (
 	sdkserver "github.com/cosmos/cosmos-sdk/server"
 	serverconfig "github.com/cosmos/cosmos-sdk/server/config"
 	servertypes "github.com/cosmos/cosmos-sdk/server/types"
+	simtestutil "github.com/cosmos/cosmos-sdk/testutil/sims"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	sdkmempool "github.com/cosmos/cosmos-sdk/types/mempool"
 	sdktestutil "github.com/cosmos/cosmos-sdk/types/module/testutil"
@@ -49,14 +51,6 @@ import (
 	genutilcli "github.com/cosmos/cosmos-sdk/x/genutil/client/cli"
 )
 
-type emptyAppOptions struct{}
-
-func (ao emptyAppOptions) Get(_ string) interface{} { return nil }
-
-func NoOpEvmAppOptions(_ string) error {
-	return nil
-}
-
 // NewRootCmd creates a new root command for evmd. It is called once in the
 // main function.
 func NewRootCmd() *cobra.Command {
@@ -68,8 +62,8 @@ func NewRootCmd() *cobra.Command {
 		dbm.NewMemDB(),
 		nil,
 		true,
-		emptyAppOptions{},
-		NoOpEvmAppOptions,
+		simtestutil.EmptyAppOptions{},
+		testutil.NoOpEvmAppOptions,
 	)
 
 	encodingConfig := sdktestutil.TestEncodingConfig{

contracts/package-lock.json

@@ -4,7 +4,7 @@ import (
 	cosmosante "github.com/cosmos/evm/ante/cosmos"
 	evmante "github.com/cosmos/evm/ante/evm"
 	evmtypes "github.com/cosmos/evm/x/vm/types"
-	ibcante "github.com/cosmos/ibc-go/v8/modules/core/ante"
+	ibcante "github.com/cosmos/ibc-go/v10/modules/core/ante"
 
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/x/auth/ante"

evmd/ante/cosmos_handler.go

@@ -2,7 +2,7 @@ package ante
 
 import (
 	anteinterfaces "github.com/cosmos/evm/ante/interfaces"
-	ibckeeper "github.com/cosmos/ibc-go/v8/modules/core/keeper"
+	ibckeeper "github.com/cosmos/ibc-go/v10/modules/core/keeper"
 
 	errorsmod "cosmossdk.io/errors"
 	storetypes "cosmossdk.io/store/types"

evmd/ante/handler_options.go

@@ -28,29 +28,29 @@ import (
 	"github.com/cosmos/evm/x/erc20"
 	erc20keeper "github.com/cosmos/evm/x/erc20/keeper"
 	erc20types "github.com/cosmos/evm/x/erc20/types"
+	erc20v2 "github.com/cosmos/evm/x/erc20/v2"
 	"github.com/cosmos/evm/x/feemarket"
 	feemarketkeeper "github.com/cosmos/evm/x/feemarket/keeper"
 	feemarkettypes "github.com/cosmos/evm/x/feemarket/types"
 	// NOTE: override ICS20 keeper to support IBC transfers of ERC20 tokens
 	"github.com/cosmos/evm/x/ibc/transfer"
 	transferkeeper "github.com/cosmos/evm/x/ibc/transfer/keeper"
+	transferv2 "github.com/cosmos/evm/x/ibc/transfer/v2"
 	"github.com/cosmos/evm/x/vm"
 	evmkeeper "github.com/cosmos/evm/x/vm/keeper"
 	evmtypes "github.com/cosmos/evm/x/vm/types"
 	"github.com/cosmos/gogoproto/proto"
-	"github.com/cosmos/ibc-go/modules/capability"
-	capabilitykeeper "github.com/cosmos/ibc-go/modules/capability/keeper"
-	capabilitytypes "github.com/cosmos/ibc-go/modules/capability/types"
-	ibctransfer "github.com/cosmos/ibc-go/v8/modules/apps/transfer"
-	ibctransfertypes "github.com/cosmos/ibc-go/v8/modules/apps/transfer/types"
-	ibc "github.com/cosmos/ibc-go/v8/modules/core"
-	ibcclienttypes "github.com/cosmos/ibc-go/v8/modules/core/02-client/types"
-	ibcconnectiontypes "github.com/cosmos/ibc-go/v8/modules/core/03-connection/types"
-	porttypes "github.com/cosmos/ibc-go/v8/modules/core/05-port/types"
-	ibcexported "github.com/cosmos/ibc-go/v8/modules/core/exported"
-	ibckeeper "github.com/cosmos/ibc-go/v8/modules/core/keeper"
-	ibctm "github.com/cosmos/ibc-go/v8/modules/light-clients/07-tendermint"
-	ibctestingtypes "github.com/cosmos/ibc-go/v8/testing/types"
+	ibctransfer "github.com/cosmos/ibc-go/v10/modules/apps/transfer"
+	ibctransfertypes "github.com/cosmos/ibc-go/v10/modules/apps/transfer/types"
+	ibc "github.com/cosmos/ibc-go/v10/modules/core"
+	ibcclienttypes "github.com/cosmos/ibc-go/v10/modules/core/02-client/types"
+	ibcconnectiontypes "github.com/cosmos/ibc-go/v10/modules/core/03-connection/types"
+	porttypes "github.com/cosmos/ibc-go/v10/modules/core/05-port/types"
+	ibcapi "github.com/cosmos/ibc-go/v10/modules/core/api"
+	ibcexported "github.com/cosmos/ibc-go/v10/modules/core/exported"
+	ibckeeper "github.com/cosmos/ibc-go/v10/modules/core/keeper"
+	ibctm "github.com/cosmos/ibc-go/v10/modules/light-clients/07-tendermint"
+	ibctesting "github.com/cosmos/ibc-go/v10/testing"
 
 	autocliv1 "cosmossdk.io/api/cosmos/autocli/v1"
 	reflectionv1 "cosmossdk.io/api/cosmos/reflection/v1"
@@ -167,11 +167,10 @@ var (
 var (
 	_ runtime.AppI            = (*EVMD)(nil)
 	_ servertypes.Application = (*EVMD)(nil)
+	_ ibctesting.TestingApp   = (*EVMD)(nil)
 )
 
 // EVMD extends an ABCI application, but with most of its parameters exported.
-// They are exported for convenience in creating helper functions, as object
-// capabilities aren't needed for testing.
 type EVMD struct {
 	*baseapp.BaseApp
 
@@ -188,7 +187,6 @@ type EVMD struct {
 	// keepers
 	AccountKeeper         authkeeper.AccountKeeper
 	BankKeeper            bankkeeper.Keeper
-	CapabilityKeeper      *capabilitykeeper.Keeper
 	StakingKeeper         *stakingkeeper.Keeper
 	SlashingKeeper        slashingkeeper.Keeper
 	MintKeeper            mintkeeper.Keeper
@@ -202,10 +200,8 @@ type EVMD struct {
 	ConsensusParamsKeeper consensusparamkeeper.Keeper
 
 	// IBC keepers
-	IBCKeeper            *ibckeeper.Keeper // IBC Keeper must be a pointer in the app, so we can SetRouter on it correctly
-	TransferKeeper       transferkeeper.Keeper
-	scopedIBCKeeper      capabilitykeeper.ScopedKeeper
-	ScopedTransferKeeper capabilitykeeper.ScopedKeeper
+	IBCKeeper      *ibckeeper.Keeper // IBC Keeper must be a pointer in the app, so we can SetRouter on it correctly
+	TransferKeeper transferkeeper.Keeper
 
 	// Cosmos EVM keepers
 	FeeMarketKeeper feemarketkeeper.Keeper
@@ -287,17 +283,15 @@ func NewExampleApp(
 	keys := storetypes.NewKVStoreKeys(
 		authtypes.StoreKey, banktypes.StoreKey, stakingtypes.StoreKey,
 		minttypes.StoreKey, distrtypes.StoreKey, slashingtypes.StoreKey,
-		govtypes.StoreKey, paramstypes.StoreKey, consensusparamtypes.StoreKey, upgradetypes.StoreKey, feegrant.StoreKey,
-		evidencetypes.StoreKey, capabilitytypes.StoreKey,
-		authzkeeper.StoreKey,
+		govtypes.StoreKey, paramstypes.StoreKey, consensusparamtypes.StoreKey,
+		upgradetypes.StoreKey, feegrant.StoreKey, evidencetypes.StoreKey, authzkeeper.StoreKey,
 		// ibc keys
 		ibcexported.StoreKey, ibctransfertypes.StoreKey,
 		// Cosmos EVM store keys
 		evmtypes.StoreKey, feemarkettypes.StoreKey, erc20types.StoreKey,
 	)
 
 	tkeys := storetypes.NewTransientStoreKeys(paramstypes.TStoreKey, evmtypes.TransientKey, feemarkettypes.TransientKey)
-	memKeys := storetypes.NewMemoryStoreKeys(capabilitytypes.MemStoreKey)
 
 	// load state streaming if enabled
 	if err := bApp.RegisterStreamingServices(appOpts, keys); err != nil {
@@ -318,7 +312,6 @@ func NewExampleApp(
 		interfaceRegistry: interfaceRegistry,
 		keys:              keys,
 		tkeys:             tkeys,
-		memKeys:           memKeys,
 	}
 
 	app.ParamsKeeper = initParamsKeeper(appCodec, legacyAmino, keys[paramstypes.StoreKey], tkeys[paramstypes.TStoreKey])
@@ -335,15 +328,6 @@ func NewExampleApp(
 	)
 	bApp.SetParamStore(app.ConsensusParamsKeeper.ParamsStore)
 
-	app.CapabilityKeeper = capabilitykeeper.NewKeeper(appCodec, keys[capabilitytypes.StoreKey], memKeys[capabilitytypes.MemStoreKey])
-
-	app.scopedIBCKeeper = app.CapabilityKeeper.ScopeToModule(ibcexported.ModuleName)
-	app.ScopedTransferKeeper = app.CapabilityKeeper.ScopeToModule(ibctransfertypes.ModuleName)
-
-	// Applications that wish to enforce statically created ScopedKeepers should call `Seal` after creating
-	// their scoped modules in `NewApp` with `ScopeToModule`
-	app.CapabilityKeeper.Seal()
-
 	// add keepers
 	app.AccountKeeper = authkeeper.NewAccountKeeper(
 		appCodec, runtime.NewKVStoreService(keys[authtypes.StoreKey]),
@@ -449,11 +433,9 @@ func NewExampleApp(
 	// Create IBC Keeper
 	app.IBCKeeper = ibckeeper.NewKeeper(
 		appCodec,
-		keys[ibcexported.StoreKey],
+		runtime.NewKVStoreService(keys[ibcexported.StoreKey]),
 		app.GetSubspace(ibcexported.ModuleName),
-		app.StakingKeeper,
 		app.UpgradeKeeper,
-		app.scopedIBCKeeper,
 		authAddr,
 	)
 
@@ -522,17 +504,18 @@ func NewExampleApp(
 
 	// instantiate IBC transfer keeper AFTER the ERC-20 keeper to use it in the instantiation
 	app.TransferKeeper = transferkeeper.NewKeeper(
-		appCodec, keys[ibctransfertypes.StoreKey], app.GetSubspace(ibctransfertypes.ModuleName),
-		nil, // we are passing no ics4 wrapper
-		app.IBCKeeper.ChannelKeeper, app.IBCKeeper.PortKeeper,
-		app.AccountKeeper, app.BankKeeper, app.ScopedTransferKeeper,
+		appCodec,
+		runtime.NewKVStoreService(keys[ibctransfertypes.StoreKey]),
+		app.GetSubspace(ibctransfertypes.ModuleName),
+		app.IBCKeeper.ChannelKeeper,
+		app.IBCKeeper.ChannelKeeper,
+		app.MsgServiceRouter(),
+		app.AccountKeeper,
+		app.BankKeeper,
 		app.Erc20Keeper, // Add ERC20 Keeper for ERC20 transfers
 		authAddr,
 	)
 
-	// Override the ICS20 app module
-	transferModule := transfer.NewAppModule(app.TransferKeeper)
-
 	/*
 		Create Transfer Stack
 
@@ -553,11 +536,26 @@ func NewExampleApp(
 	transferStack = transfer.NewIBCModule(app.TransferKeeper)
 	transferStack = erc20.NewIBCMiddleware(app.Erc20Keeper, transferStack)
 
+	var transferStackV2 ibcapi.IBCModule
+	transferStackV2 = transferv2.NewIBCModule(app.TransferKeeper)
+	transferStackV2 = erc20v2.NewIBCMiddleware(transferStackV2, app.Erc20Keeper)
+
 	// Create static IBC router, add transfer route, then set and seal it
 	ibcRouter := porttypes.NewRouter()
 	ibcRouter.AddRoute(ibctransfertypes.ModuleName, transferStack)
+	ibcRouterV2 := ibcapi.NewRouter()
+	ibcRouterV2.AddRoute(ibctransfertypes.ModuleName, transferStackV2)
 
 	app.IBCKeeper.SetRouter(ibcRouter)
+	app.IBCKeeper.SetRouterV2(ibcRouterV2)
+
+	clientKeeper := app.IBCKeeper.ClientKeeper
+	storeProvider := app.IBCKeeper.ClientKeeper.GetStoreProvider()
+	tmLightClientModule := ibctm.NewLightClientModule(appCodec, storeProvider)
+	clientKeeper.AddRoute(ibctm.ModuleName, &tmLightClientModule)
+
+	// Override the ICS20 app module
+	transferModule := transfer.NewAppModule(app.TransferKeeper)
 
 	// NOTE: we are adding all available Cosmos EVM EVM extensions.
 	// Not all of them need to be enabled, which can be configured on a per-chain basis.
@@ -588,7 +586,6 @@ func NewExampleApp(
 		),
 		auth.NewAppModule(appCodec, app.AccountKeeper, authsims.RandomGenesisAccounts, app.GetSubspace(authtypes.ModuleName)),
 		bank.NewAppModule(appCodec, app.BankKeeper, app.AccountKeeper, app.GetSubspace(banktypes.ModuleName)),
-		capability.NewAppModule(appCodec, *app.CapabilityKeeper, false),
 		feegrantmodule.NewAppModule(appCodec, app.AccountKeeper, app.BankKeeper, app.FeeGrantKeeper, app.interfaceRegistry),
 		gov.NewAppModule(appCodec, &app.GovKeeper, app.AccountKeeper, app.BankKeeper, app.GetSubspace(govtypes.ModuleName)),
 		mint.NewAppModule(appCodec, app.MintKeeper, app.AccountKeeper, nil, app.GetSubspace(minttypes.ModuleName)),
@@ -602,7 +599,7 @@ func NewExampleApp(
 		consensus.NewAppModule(appCodec, app.ConsensusParamsKeeper),
 		// IBC modules
 		ibc.NewAppModule(app.IBCKeeper),
-		ibctm.NewAppModule(),
+		ibctm.NewAppModule(tmLightClientModule),
 		transferModule,
 		// Cosmos EVM modules
 		vm.NewAppModule(app.EVMKeeper, app.AccountKeeper),
@@ -642,7 +639,7 @@ func NewExampleApp(
 	// NOTE: staking module is required if HistoricalEntries param > 0
 	// NOTE: capability module's beginblocker must come before any modules using capabilities (e.g. IBC)
 	app.ModuleManager.SetOrderBeginBlockers(
-		capabilitytypes.ModuleName, minttypes.ModuleName,
+		minttypes.ModuleName,
 
 		// IBC modules
 		ibcexported.ModuleName, ibctransfertypes.ModuleName,
@@ -663,7 +660,7 @@ func NewExampleApp(
 	// to get the full block gas used.
 	app.ModuleManager.SetOrderEndBlockers(
 		govtypes.ModuleName, stakingtypes.ModuleName,
-		capabilitytypes.ModuleName, authtypes.ModuleName, banktypes.ModuleName,
+		authtypes.ModuleName, banktypes.ModuleName,
 
 		// Cosmos EVM EndBlockers
 		evmtypes.ModuleName, erc20types.ModuleName, feemarkettypes.ModuleName,
@@ -679,11 +676,8 @@ func NewExampleApp(
 	// NOTE: The genutils module must occur after staking so that pools are
 	// properly initialized with tokens from genesis accounts.
 	// NOTE: The genutils module must also occur after auth so that it can access the params from auth.
-	// NOTE: Capability module must occur first so that it can initialize any capabilities
-	// so that other modules that want to create or claim capabilities afterwards in InitChain
-	// can do so safely.
 	genesisModuleOrder := []string{
-		capabilitytypes.ModuleName, authtypes.ModuleName, banktypes.ModuleName,
+		authtypes.ModuleName, banktypes.ModuleName,
 		distrtypes.ModuleName, stakingtypes.ModuleName, slashingtypes.ModuleName, govtypes.ModuleName,
 		minttypes.ModuleName,
 		ibcexported.ModuleName,
@@ -740,7 +734,6 @@ func NewExampleApp(
 	// initialize stores
 	app.MountKVStores(keys)
 	app.MountTransientStores(tkeys)
-	app.MountMemoryStores(memKeys)
 
 	maxGasWanted := cast.ToUint64(appOpts.Get(srvflags.EVMMaxTxGasWanted))
 
@@ -1000,11 +993,6 @@ func (app *EVMD) GetBaseApp() *baseapp.BaseApp {
 	return app.BaseApp
 }
 
-// GetStakingKeeper implements the TestingApp interface.
-func (app *EVMD) GetStakingKeeper() ibctestingtypes.StakingKeeper {
-	return app.StakingKeeper
-}
-
 // GetStakingKeeperSDK implements the TestingApp interface.
 func (app *EVMD) GetStakingKeeperSDK() stakingkeeper.Keeper {
 	return *app.StakingKeeper
@@ -1015,11 +1003,6 @@ func (app *EVMD) GetIBCKeeper() *ibckeeper.Keeper {
 	return app.IBCKeeper
 }
 
-// GetScopedIBCKeeper implements the TestingApp interface.
-func (app *EVMD) GetScopedIBCKeeper() capabilitykeeper.ScopedKeeper {
-	return app.scopedIBCKeeper
-}
-
 // GetTxConfig implements the TestingApp interface.
 func (app *EVMD) GetTxConfig() client.TxConfig {
 	return app.txConfig

evmd/app.go

@@ -8,7 +8,9 @@ import (
 	"strings"
 
 	"cosmossdk.io/math"
+
 	sdk "github.com/cosmos/cosmos-sdk/types"
+
 	testconstants "github.com/cosmos/evm/testutil/constants"
 	evmtypes "github.com/cosmos/evm/x/vm/types"
 )
@@ -27,6 +29,16 @@ var ChainsCoinInfo = map[string]evmtypes.EvmCoinInfo{
 		DisplayDenom: testconstants.ExampleDisplayDenom,
 		Decimals:     evmtypes.SixDecimals,
 	},
+	TestChainID1: {
+		Denom:        ExampleChainDenom,
+		DisplayDenom: ExampleChainDenom,
+		Decimals:     evmtypes.EighteenDecimals,
+	},
+	TestChainID2: {
+		Denom:        ExampleChainDenom,
+		DisplayDenom: ExampleChainDenom,
+		Decimals:     evmtypes.EighteenDecimals,
+	},
 }
 
 // EVMOptionsFn defines a function type for setting app options specifically for