imp(all): Add EVM, ERC-20, feemarket and precompiles from Evmos

example_chain/app.go

@@ -799,16 +799,12 @@ func (app *ExampleChain) TxConfig() client.TxConfig {
 func (a *ExampleChain) DefaultGenesis() map[string]json.RawMessage {
 	genesis := ModuleBasics.DefaultGenesis(a.appCodec)
 
-	// NOTE: for the example chain implementation we need to set the default EVM denomination
-	evmGenState := evmtypes.DefaultGenesisState()
-	evmGenState.Params.EvmDenom = ExampleChainDenom
+	evmGenState := NewEVMGenesisState()
 	genesis[evmtypes.ModuleName] = a.appCodec.MustMarshalJSON(evmGenState)
 
 	// NOTE: for the example chain implementation we are also adding a default token pair,
 	// which is the base denomination of the chain (i.e. the WEVMOS contract)
-	erc20GenState := erc20types.DefaultGenesisState()
-	erc20GenState.TokenPairs = ExampleTokenPairs
-	erc20GenState.Params.NativePrecompiles = append(erc20GenState.Params.NativePrecompiles, WEVMOSContractMainnet)
+	erc20GenState := NewErc20GenesisState()
 	genesis[erc20types.ModuleName] = a.appCodec.MustMarshalJSON(erc20GenState)
 
 	return genesis

example_chain/genesis.go

@@ -8,6 +8,7 @@ import (
 
 	"cosmossdk.io/simapp"
 	"github.com/evmos/os/encoding"
+	erc20types "github.com/evmos/os/x/erc20/types"
 	evmtypes "github.com/evmos/os/x/evm/types"
 )
 
@@ -26,10 +27,35 @@ func NewDefaultGenesisState() simapp.GenesisState {
 
 	genesisState := ModuleBasics.DefaultGenesis(encCfg.Codec)
 
-	// define new chain-specific EVM genesis state with correct EVM denom
-	evmGenesis := evmtypes.DefaultGenesisState()
-	evmGenesis.Params.EvmDenom = ExampleChainDenom
-	genesisState[evmtypes.ModuleName] = encCfg.Codec.MustMarshalJSON(evmGenesis)
+	evmGenState := NewEVMGenesisState()
+	genesisState[evmtypes.ModuleName] = encCfg.Codec.MustMarshalJSON(evmGenState)
+
+	erc20GenState := NewErc20GenesisState()
+	genesisState[erc20types.ModuleName] = encCfg.Codec.MustMarshalJSON(erc20GenState)
 
 	return genesisState
 }
+
+// NewEVMGenesisState returns the default genesis state for the EVM module.
+//
+// NOTE: for the example chain implementation we need to set the default EVM denomination
+// and enable ALL precompiles.
+func NewEVMGenesisState() *evmtypes.GenesisState {
+	evmGenState := evmtypes.DefaultGenesisState()
+	evmGenState.Params.EvmDenom = ExampleChainDenom
+	evmGenState.Params.ActiveStaticPrecompiles = evmtypes.AvailableStaticPrecompiles
+
+	return evmGenState
+}
+
+// NewErc20GenesisState returns the default genesis state for the ERC20 module.
+//
+// NOTE: for the example chain implementation we are also adding a default token pair,
+// which is the base denomination of the chain (i.e. the WEVMOS contract).
+func NewErc20GenesisState() *erc20types.GenesisState {
+	erc20GenState := erc20types.DefaultGenesisState()
+	erc20GenState.TokenPairs = ExampleTokenPairs
+	erc20GenState.Params.NativePrecompiles = append(erc20GenState.Params.NativePrecompiles, WEVMOSContractMainnet)
+
+	return erc20GenState
+}

example_chain/test_helpers.go

@@ -228,6 +228,6 @@ func SetupTestingApp(chainID string) func() (ibctesting.TestingApp, map[string]j
 			simtestutil.NewAppOptionsWithFlagHome(DefaultNodeHome),
 			baseapp.SetChainID(chainID),
 		)
-		return app, NewDefaultGenesisState()
+		return app, app.DefaultGenesis()
 	}
 }

example_chain/testutil/eth_setup.go

@@ -111,6 +111,9 @@ func EthSetupWithDB(isCheckTx bool, chainID string, patchGenesis func(*example_a
 // NewTestGenesisState generate genesis state with single validator
 //
 // It is also setting up the EVM parameters to use sensible defaults.
+//
+// TODO: are these different genesis functions necessary or can they all be refactored into one?
+// there's also other genesis state functions; some like app.DefaultGenesis() or others in test helpers only.
 func NewTestGenesisState(codec codec.Codec) simapp.GenesisState {
 	privVal := mock.NewPV()
 	pubKey, err := privVal.GetPubKey()

precompiles/staking/staking_test.go

@@ -449,7 +449,7 @@ func (s *PrecompileTestSuite) TestRun() {
 
 			precompiles, found, err := s.app.EVMKeeper.GetPrecompileInstance(s.ctx, contractAddr)
 			s.Require().NoError(err, "failed to instantiate precompile")
-			s.Require().True(found, "not found precompile")
+			s.Require().True(found, "precompile not found")
 			evm.WithPrecompiles(precompiles.Map, precompiles.Addresses)
 
 			// Run precompiled contract

testutil/integration/os/network/setup.go

@@ -274,16 +274,16 @@ func setDefaultGovGenesisState(exampleApp *example_app.ExampleChain, genesisStat
 }
 
 func setDefaultErc20GenesisState(exampleApp *example_app.ExampleChain, genesisState simapp.GenesisState) simapp.GenesisState {
-	erc20Gen := erc20types.DefaultGenesisState()
+	// TODO: add test case to ensure that this is the same as the default genesis for the example app
+	erc20Gen := example_app.NewErc20GenesisState()
+
 	genesisState[erc20types.ModuleName] = exampleApp.AppCodec().MustMarshalJSON(erc20Gen)
 	return genesisState
 }
 
 func setDefaultEVMGenesisState(exampleApp *example_app.ExampleChain, genesisState simapp.GenesisState) simapp.GenesisState {
-	evmGen := evmtypes.DefaultGenesisState()
-
-	// Set the EVM denomination for the given chain
-	evmGen.Params.EvmDenom = testutil.ExampleAttoDenom
+	// TODO: add test case to ensure that this is the same as the default genesis for the example app
+	evmGen := example_app.NewEVMGenesisState()
 
 	genesisState[evmtypes.ModuleName] = exampleApp.AppCodec().MustMarshalJSON(evmGen)
 	return genesisState

testutil/integration/os/utils/genesis.go

@@ -6,11 +6,11 @@ package utils
 import (
 	codectypes "github.com/cosmos/cosmos-sdk/codec/types"
 	authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
+	example_app "github.com/evmos/os/example_chain"
 	"github.com/evmos/os/testutil"
 	testkeyring "github.com/evmos/os/testutil/integration/os/keyring"
 	"github.com/evmos/os/testutil/integration/os/network"
 	erc20types "github.com/evmos/os/x/erc20/types"
-	evmtypes "github.com/evmos/os/x/evm/types"
 )
 
 const (
@@ -44,26 +44,25 @@ func CreateGenesisWithTokenPairs(keyring testkeyring.Keyring) network.CustomGene
 	}
 
 	// Add token pairs to genesis
-	erc20GenesisState := erc20types.DefaultGenesisState()
-	erc20GenesisState.TokenPairs = []erc20types.TokenPair{{
-		Erc20Address:  erc20TokenPairHex,
-		Denom:         "xmpl",
-		Enabled:       true,
-		ContractOwner: erc20types.OWNER_MODULE, // NOTE: Owner is the module account since it's a native token and was registered through governance
-	}, {
-		Erc20Address:  testutil.WEVMOSContractTestnet,
-		Denom:         testutil.ExampleAttoDenom,
-		Enabled:       true,
-		ContractOwner: erc20types.OWNER_MODULE, // NOTE: Owner is the module account since it's a native token and was registered through governance
-	}}
-
-	// Add the smart contracts to the EVM genesis
-	evmGenesisState := evmtypes.DefaultGenesisState()
+	erc20GenesisState := example_app.NewErc20GenesisState()
+	erc20GenesisState.TokenPairs = append(erc20GenesisState.TokenPairs,
+		erc20types.TokenPair{
+			Erc20Address:  erc20TokenPairHex,
+			Denom:         "xmpl",
+			Enabled:       true,
+			ContractOwner: erc20types.OWNER_MODULE, // NOTE: Owner is the module account since it's a native token and was registered through governance
+		},
+		erc20types.TokenPair{
+			Erc20Address:  testutil.WEVMOSContractTestnet,
+			Denom:         testutil.ExampleAttoDenom,
+			Enabled:       true,
+			ContractOwner: erc20types.OWNER_MODULE, // NOTE: Owner is the module account since it's a native token and was registered through governance
+		},
+	)
 
 	// Combine module genesis states
 	return network.CustomGenesisState{
 		authtypes.ModuleName:  accGenesisState,
 		erc20types.ModuleName: erc20GenesisState,
-		evmtypes.ModuleName:   evmGenesisState,
 	}
 }