laconicd/x/evm/handler_test.go

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package evm_test
import (
"math/big"
"testing"
"time"
"github.com/stretchr/testify/suite"
x/evm: unit tests and fixes (#223) * evm: move Keeper and Querier to /keeper package * keeper: update keeper_test.go * fix format * evm: use aliased types * bump SDK version to v0.38.1 * app: updates from new version * errors: switch sdk.Error -> error * errors: switch sdk.Error -> error. Continuation * more fixes * update app/ * update keys and client pkgs * build * fix tests * lint * minor changes * changelog * address @austinbell comments * Fix keyring usage in rpc API and CLI * fix keyring * break line * Misc cleanup (#188) * evm: move Begin and EndBlock to abci.go * evm: use expected keeper interfaces * app: use EthermintApp for integration and unit test setup * evm: remove count type; update codec * go mod verify * evm: rename msgs for consistency * evm: events * minor cleanup * lint * ante: update tests * changelog * nolint * evm: update statedb to create ethermint Account instead of BaseAccount * fix importer test * address @austinabell comments * update README * changelog * evm: update codec * rename GasLimit->Gas and Price ->GasPrice * msg cleanup and tests * cleanup TxData * fix marshaling * revert rename * move types * evm/keeper: querier tests * switch MarshalLengthPrefixed -> BinaryBare; remove panics * fix event sender * fix panic * try fix txDecoder error * evm: handler tests * evm: handler MsgEthermint test * fix tests * store logs in keeper after transition (#210) * add some comments * begin log handler test * update TransitionCSDB to return ReturnData * use rlp for result data encode/decode * update tests * implement SetBlockLogs * implement GetBlockLogs * test log set/get * update keeper get/set logs to use hash as key * fix test * move logsKey to csdb * attempt to fix test * attempt to fix test * attempt to fix test * lint * lint * lint * save logs after handling msg * update k.Logs * cleanup * remove unused * fix issues * comment out handler test * address comments * lint * fix handler test * address comments * use amino * lint * address comments * merge * fix encoding bug * minor fix * rpc: error handling * rpc: simulate only returns gasConsumed * rpc: error ineffassign * evm: handler test * go: bump version to 1.14 and SDK version to latest master * rpc: fix simulation return value * breaking changes from SDK * sdk: breaking changes; build * tests: fixes * minor fix * proto: ethermint types attempt * proto: define EthAccount proto type and extend sdk std.Codec * evm: fix panic on handler test * evm: minor state object changes * cleanup * tests: update test-importer * fix evm test * fix pubkey registration * lint * cleanup * more test checks for importer * minor change * codec fixes * rm init func * fix importer test build * fixes * test fixes * fix bloom key * rm unnecesary func * remove comment Co-authored-by: austinabell <austinabell8@gmail.com> Co-authored-by: noot <36753753+noot@users.noreply.github.com>
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ethcmn "github.com/ethereum/go-ethereum/common"
ethtypes "github.com/ethereum/go-ethereum/core/types"
x/evm: unit tests and fixes (#223) * evm: move Keeper and Querier to /keeper package * keeper: update keeper_test.go * fix format * evm: use aliased types * bump SDK version to v0.38.1 * app: updates from new version * errors: switch sdk.Error -> error * errors: switch sdk.Error -> error. Continuation * more fixes * update app/ * update keys and client pkgs * build * fix tests * lint * minor changes * changelog * address @austinbell comments * Fix keyring usage in rpc API and CLI * fix keyring * break line * Misc cleanup (#188) * evm: move Begin and EndBlock to abci.go * evm: use expected keeper interfaces * app: use EthermintApp for integration and unit test setup * evm: remove count type; update codec * go mod verify * evm: rename msgs for consistency * evm: events * minor cleanup * lint * ante: update tests * changelog * nolint * evm: update statedb to create ethermint Account instead of BaseAccount * fix importer test * address @austinabell comments * update README * changelog * evm: update codec * rename GasLimit->Gas and Price ->GasPrice * msg cleanup and tests * cleanup TxData * fix marshaling * revert rename * move types * evm/keeper: querier tests * switch MarshalLengthPrefixed -> BinaryBare; remove panics * fix event sender * fix panic * try fix txDecoder error * evm: handler tests * evm: handler MsgEthermint test * fix tests * store logs in keeper after transition (#210) * add some comments * begin log handler test * update TransitionCSDB to return ReturnData * use rlp for result data encode/decode * update tests * implement SetBlockLogs * implement GetBlockLogs * test log set/get * update keeper get/set logs to use hash as key * fix test * move logsKey to csdb * attempt to fix test * attempt to fix test * attempt to fix test * lint * lint * lint * save logs after handling msg * update k.Logs * cleanup * remove unused * fix issues * comment out handler test * address comments * lint * fix handler test * address comments * use amino * lint * address comments * merge * fix encoding bug * minor fix * rpc: error handling * rpc: simulate only returns gasConsumed * rpc: error ineffassign * evm: handler test * go: bump version to 1.14 and SDK version to latest master * rpc: fix simulation return value * breaking changes from SDK * sdk: breaking changes; build * tests: fixes * minor fix * proto: ethermint types attempt * proto: define EthAccount proto type and extend sdk std.Codec * evm: fix panic on handler test * evm: minor state object changes * cleanup * tests: update test-importer * fix evm test * fix pubkey registration * lint * cleanup * more test checks for importer * minor change * codec fixes * rm init func * fix importer test build * fixes * test fixes * fix bloom key * rm unnecesary func * remove comment Co-authored-by: austinabell <austinabell8@gmail.com> Co-authored-by: noot <36753753+noot@users.noreply.github.com>
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"github.com/cosmos/cosmos-sdk/codec"
"github.com/cosmos/cosmos-sdk/crypto/keyring"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/tharsis/ethermint/app"
"github.com/tharsis/ethermint/crypto/ethsecp256k1"
"github.com/tharsis/ethermint/tests"
"github.com/tharsis/ethermint/x/evm"
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tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
)
type EvmTestSuite struct {
suite.Suite
ctx sdk.Context
handler sdk.Handler
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app *app.EthermintApp
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codec codec.BinaryMarshaler
chainID *big.Int
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signer keyring.Signer
ethSigner ethtypes.Signer
from ethcmn.Address
to sdk.AccAddress
}
func (suite *EvmTestSuite) SetupTest() {
checkTx := false
suite.app = app.Setup(checkTx)
suite.ctx = suite.app.BaseApp.NewContext(checkTx, tmproto.Header{Height: 1, ChainID: "ethermint-1", Time: time.Now().UTC()})
suite.app.EvmKeeper.WithContext(suite.ctx)
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suite.handler = evm.NewHandler(suite.app.EvmKeeper)
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suite.codec = suite.app.AppCodec()
suite.chainID = suite.app.EvmKeeper.ChainID()
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privKey, err := ethsecp256k1.GenerateKey()
suite.Require().NoError(err)
suite.to = sdk.AccAddress(privKey.PubKey().Address())
privKey, err = ethsecp256k1.GenerateKey()
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suite.Require().NoError(err)
suite.signer = tests.NewSigner(privKey)
suite.ethSigner = ethtypes.LatestSignerForChainID(suite.chainID)
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suite.from = ethcmn.BytesToAddress(privKey.PubKey().Address().Bytes())
}
func TestEvmTestSuite(t *testing.T) {
suite.Run(t, new(EvmTestSuite))
}
// func (suite *EvmTestSuite) TestHandleMsgEthereumTx() {
// var tx *types.MsgEthereumTx
// testCases := []struct {
// msg string
// malleate func()
// expPass bool
// }{
// {
// "passed",
// func() {
// to := ethcmn.BytesToAddress(suite.to)
// tx = types.NewMsgEthereumTx(suite.chainID, 0, &to, big.NewInt(100), 0, big.NewInt(10000), nil, nil)
// tx.From = suite.from.String()
// // sign transaction
// err := tx.Sign(suite.ethSigner, suite.signer)
// suite.Require().NoError(err)
// },
// true,
// },
// {
// "insufficient balance",
// func() {
// tx = types.NewMsgEthereumTxContract(suite.chainID, 0, big.NewInt(100), 0, big.NewInt(10000), nil, nil)
// tx.From = suite.from.Hex()
// // sign transaction
// err := tx.Sign(suite.ethSigner, suite.signer)
// suite.Require().NoError(err)
// },
// false,
// },
// {
// "tx encoding failed",
// func() {
// tx = types.NewMsgEthereumTxContract(suite.chainID, 0, big.NewInt(100), 0, big.NewInt(10000), nil, nil)
// },
// false,
// },
// {
// "invalid chain ID",
// func() {
// suite.ctx = suite.ctx.WithChainID("chainID")
// },
// false,
// },
// {
// "VerifySig failed",
// func() {
// tx = types.NewMsgEthereumTxContract(suite.chainID, 0, big.NewInt(100), 0, big.NewInt(10000), nil, nil)
// },
// false,
// },
// }
// for _, tc := range testCases {
// suite.Run(tc.msg, func() {
// suite.SetupTest() // reset
// //nolint
// tc.malleate()
// res, err := suite.handler(suite.ctx, tx)
// //nolint
// if tc.expPass {
// suite.Require().NoError(err)
// suite.Require().NotNil(res)
// } else {
// suite.Require().Error(err)
// suite.Require().Nil(res)
// }
// })
// }
// }
// func (suite *EvmTestSuite) TestHandlerLogs() {
// // Test contract:
// // pragma solidity ^0.5.1;
// // contract Test {
// // event Hello(uint256 indexed world);
// // constructor() public {
// // emit Hello(17);
// // }
// // }
// // {
// // "linkReferences": {},
// // "object": "6080604052348015600f57600080fd5b5060117f775a94827b8fd9b519d36cd827093c664f93347070a554f65e4a6f56cd73889860405160405180910390a2603580604b6000396000f3fe6080604052600080fdfea165627a7a723058206cab665f0f557620554bb45adf266708d2bd349b8a4314bdff205ee8440e3c240029",
// // "opcodes": "PUSH1 0x80 PUSH1 0x40 MSTORE CALLVALUE DUP1 ISZERO PUSH1 0xF JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST POP PUSH1 0x11 PUSH32 0x775A94827B8FD9B519D36CD827093C664F93347070A554F65E4A6F56CD738898 PUSH1 0x40 MLOAD PUSH1 0x40 MLOAD DUP1 SWAP2 SUB SWAP1 LOG2 PUSH1 0x35 DUP1 PUSH1 0x4B PUSH1 0x0 CODECOPY PUSH1 0x0 RETURN INVALID PUSH1 0x80 PUSH1 0x40 MSTORE PUSH1 0x0 DUP1 REVERT INVALID LOG1 PUSH6 0x627A7A723058 KECCAK256 PUSH13 0xAB665F0F557620554BB45ADF26 PUSH8 0x8D2BD349B8A4314 0xbd SELFDESTRUCT KECCAK256 0x5e 0xe8 DIFFICULTY 0xe EXTCODECOPY 0x24 STOP 0x29 ",
// // "sourceMap": "25:119:0:-;;;90:52;8:9:-1;5:2;;;30:1;27;20:12;5:2;90:52:0;132:2;126:9;;;;;;;;;;25:119;;;;;;"
// // }
// gasLimit := uint64(100000)
// gasPrice := big.NewInt(1000000)
// bytecode := common.FromHex("0x6080604052348015600f57600080fd5b5060117f775a94827b8fd9b519d36cd827093c664f93347070a554f65e4a6f56cd73889860405160405180910390a2603580604b6000396000f3fe6080604052600080fdfea165627a7a723058206cab665f0f557620554bb45adf266708d2bd349b8a4314bdff205ee8440e3c240029")
// tx := types.NewMsgEthereumTx(suite.chainID, 1, nil, big.NewInt(0), gasLimit, gasPrice, bytecode, nil)
// tx.From = suite.from.String()
// err := tx.Sign(suite.ethSigner, suite.signer)
// suite.Require().NoError(err)
// result, err := suite.handler(suite.ctx, tx)
// suite.Require().NoError(err, "failed to handle eth tx msg")
// txResponse, err := types.DecodeTxResponse(result.Data)
// suite.Require().NoError(err, "failed to decode result data")
// suite.Require().Equal(len(txResponse.Logs), 1)
// suite.Require().Equal(len(txResponse.Logs[0].Topics), 2)
// hash := []byte{1}
// suite.app.EvmKeeper.SetLogs(ethcmn.BytesToHash(hash), types.LogsToEthereum(txResponse.Logs))
// suite.Require().NoError(err)
// logs := suite.app.EvmKeeper.GetTxLogs(ethcmn.BytesToHash(hash))
// suite.Require().Equal(logs, txResponse.Logs)
// }
// func (suite *EvmTestSuite) TestDeployAndCallContract() {
// // Test contract:
// //http://remix.ethereum.org/#optimize=false&evmVersion=istanbul&version=soljson-v0.5.15+commit.6a57276f.js
// //2_Owner.sol
// //
// //pragma solidity >=0.4.22 <0.7.0;
// //
// ///**
// // * @title Owner
// // * @dev Set & change owner
// // */
// //contract Owner {
// //
// // address private owner;
// //
// // // event for EVM logging
// // event OwnerSet(address indexed oldOwner, address indexed newOwner);
// //
// // // modifier to check if caller is owner
// // modifier isOwner() {
// // // If the first argument of 'require' evaluates to 'false', execution terminates and all
// // // changes to the state and to Ether balances are reverted.
// // // This used to consume all gas in old EVM versions, but not anymore.
// // // It is often a good idea to use 'require' to check if functions are called correctly.
// // // As a second argument, you can also provide an explanation about what went wrong.
// // require(msg.sender == owner, "Caller is not owner");
// // _;
// //}
// //
// // /**
// // * @dev Set contract deployer as owner
// // */
// // constructor() public {
// // owner = msg.sender; // 'msg.sender' is sender of current call, contract deployer for a constructor
// // emit OwnerSet(address(0), owner);
// //}
// //
// // /**
// // * @dev Change owner
// // * @param newOwner address of new owner
// // */
// // function changeOwner(address newOwner) public isOwner {
// // emit OwnerSet(owner, newOwner);
// // owner = newOwner;
// //}
// //
// // /**
// // * @dev Return owner address
// // * @return address of owner
// // */
// // function getOwner() external view returns (address) {
// // return owner;
// //}
// //}
// // Deploy contract - Owner.sol
// gasLimit := uint64(100000000)
// gasPrice := big.NewInt(10000)
// bytecode := common.FromHex("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")
// tx := types.NewMsgEthereumTx(suite.chainID, 1, nil, big.NewInt(0), gasLimit, gasPrice, bytecode, nil)
// tx.From = suite.from.String()
// err := tx.Sign(suite.ethSigner, suite.signer)
// suite.Require().NoError(err)
// result, err := suite.handler(suite.ctx, tx)
// suite.Require().NoError(err, "failed to handle eth tx msg")
// txResponse, err := types.DecodeTxResponse(result.Data)
// suite.Require().NoError(err, "failed to decode result data")
// // store - changeOwner
// gasLimit = uint64(100000000000)
// gasPrice = big.NewInt(100)
// receiver := crypto.CreateAddress(suite.from, 1)
// storeAddr := "0xa6f9dae10000000000000000000000006a82e4a67715c8412a9114fbd2cbaefbc8181424"
// bytecode = common.FromHex(storeAddr)
// tx = types.NewMsgEthereumTx(suite.chainID, 2, &receiver, big.NewInt(0), gasLimit, gasPrice, bytecode, nil)
// tx.From = suite.from.String()
// err = tx.Sign(suite.ethSigner, suite.signer)
// suite.Require().NoError(err)
// result, err = suite.handler(suite.ctx, tx)
// suite.Require().NoError(err, "failed to handle eth tx msg")
// txResponse, err = types.DecodeTxResponse(result.Data)
// suite.Require().NoError(err, "failed to decode result data")
// // query - getOwner
// bytecode = common.FromHex("0x893d20e8")
// tx = types.NewMsgEthereumTx(suite.chainID, 2, &receiver, big.NewInt(0), gasLimit, gasPrice, bytecode, nil)
// tx.From = suite.from.String()
// err = tx.Sign(suite.ethSigner, suite.signer)
// suite.Require().NoError(err)
// result, err = suite.handler(suite.ctx, tx)
// suite.Require().NoError(err, "failed to handle eth tx msg")
// txResponse, err = types.DecodeTxResponse(result.Data)
// suite.Require().NoError(err, "failed to decode result data")
// getAddr := strings.ToLower(hexutils.BytesToHex(txResponse.Ret))
// suite.Require().Equal(true, strings.HasSuffix(storeAddr, getAddr), "Fail to query the address")
// }
// func (suite *EvmTestSuite) TestSendTransaction() {
// gasLimit := uint64(21000)
// gasPrice := big.NewInt(0x55ae82600)
// // send simple value transfer with gasLimit=21000
// tx := types.NewMsgEthereumTx(suite.chainID, 1, &ethcmn.Address{0x1}, big.NewInt(1), gasLimit, gasPrice, nil, nil)
// tx.From = suite.from.String()
// err := tx.Sign(suite.ethSigner, suite.signer)
// suite.Require().NoError(err)
// result, err := suite.handler(suite.ctx, tx)
// suite.Require().NoError(err)
// suite.Require().NotNil(result)
// }
// func (suite *EvmTestSuite) TestOutOfGasWhenDeployContract() {
// // Test contract:
// //http://remix.ethereum.org/#optimize=false&evmVersion=istanbul&version=soljson-v0.5.15+commit.6a57276f.js
// //2_Owner.sol
// //
// //pragma solidity >=0.4.22 <0.7.0;
// //
// ///**
// // * @title Owner
// // * @dev Set & change owner
// // */
// //contract Owner {
// //
// // address private owner;
// //
// // // event for EVM logging
// // event OwnerSet(address indexed oldOwner, address indexed newOwner);
// //
// // // modifier to check if caller is owner
// // modifier isOwner() {
// // // If the first argument of 'require' evaluates to 'false', execution terminates and all
// // // changes to the state and to Ether balances are reverted.
// // // This used to consume all gas in old EVM versions, but not anymore.
// // // It is often a good idea to use 'require' to check if functions are called correctly.
// // // As a second argument, you can also provide an explanation about what went wrong.
// // require(msg.sender == owner, "Caller is not owner");
// // _;
// //}
// //
// // /**
// // * @dev Set contract deployer as owner
// // */
// // constructor() public {
// // owner = msg.sender; // 'msg.sender' is sender of current call, contract deployer for a constructor
// // emit OwnerSet(address(0), owner);
// //}
// //
// // /**
// // * @dev Change owner
// // * @param newOwner address of new owner
// // */
// // function changeOwner(address newOwner) public isOwner {
// // emit OwnerSet(owner, newOwner);
// // owner = newOwner;
// //}
// //
// // /**
// // * @dev Return owner address
// // * @return address of owner
// // */
// // function getOwner() external view returns (address) {
// // return owner;
// //}
// //}
// // Deploy contract - Owner.sol
// gasLimit := uint64(1)
// suite.ctx = suite.ctx.WithGasMeter(sdk.NewGasMeter(gasLimit))
// gasPrice := big.NewInt(10000)
// bytecode := common.FromHex("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")
// tx := types.NewMsgEthereumTx(suite.chainID, 1, nil, big.NewInt(0), gasLimit, gasPrice, bytecode, nil)
// tx.From = suite.from.String()
// err := tx.Sign(suite.ethSigner, suite.signer)
// suite.Require().NoError(err)
// snapshotCommitStateDBJson, err := json.Marshal(suite.app.EvmKeeper)
// suite.Require().Nil(err)
// defer func() {
// if r := recover(); r != nil {
// currentCommitStateDBJson, err := json.Marshal(suite.app.EvmKeeper)
// suite.Require().Nil(err)
// suite.Require().Equal(snapshotCommitStateDBJson, currentCommitStateDBJson)
// } else {
// suite.Require().Fail("panic did not happen")
// }
// }()
// suite.handler(suite.ctx, tx)
// suite.Require().Fail("panic did not happen")
// }
// func (suite *EvmTestSuite) TestErrorWhenDeployContract() {
// gasLimit := uint64(1000000)
// gasPrice := big.NewInt(10000)
// bytecode := common.FromHex("0xa6f9dae10000000000000000000000006a82e4a67715c8412a9114fbd2cbaefbc8181424")
// tx := types.NewMsgEthereumTx(suite.chainID, 1, nil, big.NewInt(0), gasLimit, gasPrice, bytecode, nil)
// tx.From = suite.from.String()
// err := tx.Sign(suite.ethSigner, suite.signer)
// suite.Require().NoError(err)
// snapshotCommitStateDBJson, err := json.Marshal(suite.app.EvmKeeper)
// suite.Require().Nil(err)
// _, sdkErr := suite.handler(suite.ctx, tx)
// suite.Require().NotNil(sdkErr)
// currentCommitStateDBJson, err := json.Marshal(suite.app.EvmKeeper)
// suite.Require().Nil(err)
// suite.Require().Equal(snapshotCommitStateDBJson, currentCommitStateDBJson)
// }