add first e2e test

app/app.go

@@ -556,9 +556,6 @@ func New(
 	)
 	evmSs := app.GetSubspace(evmtypes.ModuleName)
 
-	// Get gas config for stateful contracts.
-	gasConfig := storetypes.TransientGasConfig()
-
 	app.EvmKeeper = evmkeeper.NewKeeper(
 		appCodec,
 		keys[evmtypes.StoreKey],
@@ -573,7 +570,7 @@ func New(
 		precompiles.StatefulContracts(
 			app.FungibleKeeper,
 			appCodec,
-			gasConfig,
+			storetypes.TransientGasConfig(),
 		),
 		app.ConsensusParamsKeeper,
 		aggregateAllKeys(keys, tKeys, memKeys),

changelog.md

@@ -8,6 +8,7 @@
 * [2634](https://github.com/zeta-chain/node/pull/2634) - add support for EIP-1559 gas fees
 * [2597](https://github.com/zeta-chain/node/pull/2597) - Add generic rpc metrics to zetaclient
 * [2538](https://github.com/zeta-chain/node/pull/2538) - add background worker routines to shutdown zetaclientd when needed for tss migration
+* [2633](https://github.com/zeta-chain/node/pull/2633) - support for stateful precompiled contracts.
 
 ### Refactor
 
@@ -57,7 +58,6 @@
 * [2524](https://github.com/zeta-chain/node/pull/2524) - add inscription envelop parsing 
 * [2560](https://github.com/zeta-chain/node/pull/2560) - add support for Solana SOL token withdraw
 * [2533](https://github.com/zeta-chain/node/pull/2533) - parse memo from both OP_RETURN and inscription
-* [2633](https://github.com/zeta-chain/node/pull/2633) - support for stateful precompiled contracts.
 
 ### Refactor
 
@@ -115,6 +115,7 @@
 * [2415](https://github.com/zeta-chain/node/pull/2415) - add e2e test for upgrade and test admin functionalities
 * [2440](https://github.com/zeta-chain/node/pull/2440) - Add e2e test for TSS migration
 * [2473](https://github.com/zeta-chain/node/pull/2473) - add e2e tests for most used admin transactions
+* [2703](https://github.com/zeta-chain/node/pull/2703) - add e2e tests for stateful precompiled contracts
 
 ### Fixes
 

cmd/zetae2e/local/local.go

@@ -229,6 +229,7 @@ func localE2ETest(cmd *cobra.Command, _ []string) {
 			e2etests.TestERC20DepositRestrictedName,
 		}
 		zetaTests := []string{
+			e2etests.TestZetaPrecompilesName,
 			e2etests.TestZetaWithdrawName,
 			e2etests.TestMessagePassingExternalChainsName,
 			e2etests.TestMessagePassingRevertFailExternalChainsName,

e2e/e2etests/e2etests.go

@@ -15,6 +15,7 @@ const (
 	TestZetaDepositRestrictedName = "zeta_deposit_restricted"
 	TestZetaWithdrawName          = "zeta_withdraw"
 	TestZetaWithdrawBTCRevertName = "zeta_withdraw_btc_revert" // #nosec G101 - not a hardcoded password
+	TestZetaPrecompilesName       = "zeta_precompiles"
 
 	/*
 	 Message passing tests
@@ -123,6 +124,12 @@ var AllE2ETests = []runner.E2ETest{
 	/*
 	 ZETA tests
 	*/
+	runner.NewE2ETest(
+		TestZetaPrecompilesName,
+		"call Regular stateful precompiled contract",
+		[]runner.ArgDefinition{},
+		TestPrecompilesRegular,
+	),
 	runner.NewE2ETest(
 		TestZetaDepositName,
 		"deposit ZETA from Ethereum to ZEVM",

e2e/e2etests/test_precompiles_regular.go

@@ -0,0 +1,27 @@
+package e2etests
+
+import (
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/stretchr/testify/require"
+
+	"github.com/zeta-chain/zetacore/e2e/runner"
+	"github.com/zeta-chain/zetacore/precompiles/regular"
+)
+
+func TestPrecompilesRegular(r *runner.E2ERunner, args []string) {
+	require.Len(r, args, 0, "No arguments expected")
+
+	dummyBech32Addr := "1h8duy2dltz9xz0qqhm5wvcnj02upy887fyn43u"
+
+	// Call the Regular contract in the static precompile address.
+	contract, err := regular.NewRegularCaller(regular.ContractAddress, r.EVMClient)
+	require.NoError(r, err, "Failed to create Regular contract caller")
+
+	addr, err := contract.Bech32ToHexAddr(
+		nil,
+		common.HexToAddress("0xB9Dbc229Bf588A613C00BEE8e662727AB8121cfE").String(),
+	)
+	require.NoError(r, err, "Failed to call Bech32ToHexAddr in Regular precompiled contract")
+
+	require.Equal(r, dummyBech32Addr, addr.String(), "Expected address %s, got %s", dummyBech32Addr, addr.String())
+}

precompiles/regular/regular.go

@@ -98,12 +98,15 @@ func (rc *Contract) Abi() abi.ABI {
 func (rc *Contract) RequiredGas(input []byte) uint64 {
 	// base cost to prevent large input size
 	baseCost := uint64(len(input)) * rc.kvGasConfig.WriteCostPerByte
+
+	// get methodID (first 4 bytes)
 	var methodID [4]byte
 	copy(methodID[:], input[:4])
-	requiredGas, ok := GasRequiredByMethod[methodID]
-	if ok {
+
+	if requiredGas, ok := GasRequiredByMethod[methodID]; ok {
 		return requiredGas + baseCost
 	}
+
 	return baseCost
 }
 
@@ -239,8 +242,6 @@ func (rc *Contract) Run(evm *vm.EVM, contract *vm.Contract, _ bool) ([]byte, err
 		return rc.Bech32ToHexAddr(method, args)
 	case Bech32ifyMethodName:
 		return rc.Bech32ify(method, args)
-	// case OtherMethods:
-	// ..
 	default:
 		return nil, errors.New("unknown method")
 	}