laconicd/x/evm/keeper/statedb_test.go

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package keeper_test
import (
"fmt"
"math/big"
codectypes "github.com/cosmos/cosmos-sdk/codec/types"
cryptotypes "github.com/cosmos/cosmos-sdk/crypto/types"
sdk "github.com/cosmos/cosmos-sdk/types"
authsigning "github.com/cosmos/cosmos-sdk/x/auth/signing"
authtx "github.com/cosmos/cosmos-sdk/x/auth/tx"
authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
"github.com/ethereum/go-ethereum/common"
ethtypes "github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/tharsis/ethermint/tests"
"github.com/tharsis/ethermint/x/evm/types"
)
func (suite *KeeperTestSuite) TestCreateAccount() {
testCases := []struct {
name string
addr common.Address
malleate func(common.Address)
callback func(common.Address)
}{
{
"reset account (keep balance)",
suite.address,
func(addr common.Address) {
suite.app.EvmKeeper.AddBalance(addr, big.NewInt(100))
suite.Require().NotZero(suite.app.EvmKeeper.GetBalance(addr).Int64())
},
func(addr common.Address) {
suite.Require().Equal(suite.app.EvmKeeper.GetBalance(addr).Int64(), int64(100))
},
},
{
"create account",
tests.GenerateAddress(),
func(addr common.Address) {
acc := suite.app.AccountKeeper.GetAccount(suite.ctx, addr.Bytes())
suite.Require().Nil(acc)
},
func(addr common.Address) {
acc := suite.app.AccountKeeper.GetAccount(suite.ctx, addr.Bytes())
suite.Require().NotNil(acc)
},
},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
tc.malleate(tc.addr)
suite.app.EvmKeeper.CreateAccount(tc.addr)
tc.callback(tc.addr)
})
}
}
func (suite *KeeperTestSuite) TestAddBalance() {
testCases := []struct {
name string
amount *big.Int
isNoOp bool
}{
{
"positive amount",
big.NewInt(100),
false,
},
{
"zero amount",
big.NewInt(0),
true,
},
{
"negative amount",
big.NewInt(-1),
true,
},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
prev := suite.app.EvmKeeper.GetBalance(suite.address)
suite.app.EvmKeeper.AddBalance(suite.address, tc.amount)
post := suite.app.EvmKeeper.GetBalance(suite.address)
if tc.isNoOp {
suite.Require().Equal(prev.Int64(), post.Int64())
} else {
suite.Require().Equal(new(big.Int).Add(prev, tc.amount).Int64(), post.Int64())
}
})
}
}
func (suite *KeeperTestSuite) TestSubBalance() {
testCases := []struct {
name string
amount *big.Int
malleate func()
isNoOp bool
}{
{
"positive amount, below zero",
big.NewInt(100),
func() {},
true,
},
{
"positive amount, below zero",
big.NewInt(50),
func() {
suite.app.EvmKeeper.AddBalance(suite.address, big.NewInt(100))
},
false,
},
{
"zero amount",
big.NewInt(0),
func() {},
true,
},
{
"negative amount",
big.NewInt(-1),
func() {},
true,
},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
tc.malleate()
prev := suite.app.EvmKeeper.GetBalance(suite.address)
suite.app.EvmKeeper.SubBalance(suite.address, tc.amount)
post := suite.app.EvmKeeper.GetBalance(suite.address)
if tc.isNoOp {
suite.Require().Equal(prev.Int64(), post.Int64())
} else {
suite.Require().Equal(new(big.Int).Sub(prev, tc.amount).Int64(), post.Int64())
}
})
}
}
func (suite *KeeperTestSuite) TestGetNonce() {
testCases := []struct {
name string
address common.Address
expectedNonce uint64
malleate func()
}{
{
"account not found",
tests.GenerateAddress(),
0,
func() {},
},
{
"existing account",
suite.address,
1,
func() {
suite.app.EvmKeeper.SetNonce(suite.address, 1)
},
},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
tc.malleate()
nonce := suite.app.EvmKeeper.GetNonce(tc.address)
suite.Require().Equal(tc.expectedNonce, nonce)
})
}
}
func (suite *KeeperTestSuite) TestSetNonce() {
testCases := []struct {
name string
address common.Address
nonce uint64
malleate func()
}{
{
"new account",
tests.GenerateAddress(),
10,
func() {},
},
{
"existing account",
suite.address,
99,
func() {},
},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
suite.app.EvmKeeper.SetNonce(tc.address, tc.nonce)
nonce := suite.app.EvmKeeper.GetNonce(tc.address)
suite.Require().Equal(tc.nonce, nonce)
})
}
}
func (suite *KeeperTestSuite) TestGetCodeHash() {
addr := tests.GenerateAddress()
baseAcc := &authtypes.BaseAccount{Address: sdk.AccAddress(addr.Bytes()).String()}
suite.app.AccountKeeper.SetAccount(suite.ctx, baseAcc)
testCases := []struct {
name string
address common.Address
expHash common.Hash
malleate func()
}{
{
"account not found",
tests.GenerateAddress(),
common.BytesToHash(types.EmptyCodeHash),
func() {},
},
{
"account not EthAccount type",
addr,
common.BytesToHash(types.EmptyCodeHash),
func() {},
},
{
"existing account",
suite.address,
crypto.Keccak256Hash([]byte("codeHash")),
func() {
suite.app.EvmKeeper.SetCode(suite.address, []byte("codeHash"))
},
},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
tc.malleate()
hash := suite.app.EvmKeeper.GetCodeHash(tc.address)
suite.Require().Equal(tc.expHash, hash)
})
}
}
func (suite *KeeperTestSuite) TestSetCode() {
addr := tests.GenerateAddress()
baseAcc := &authtypes.BaseAccount{Address: sdk.AccAddress(addr.Bytes()).String()}
suite.app.AccountKeeper.SetAccount(suite.ctx, baseAcc)
testCases := []struct {
name string
address common.Address
code []byte
isNoOp bool
}{
{
"account not found",
tests.GenerateAddress(),
[]byte("code"),
false,
},
{
"account not EthAccount type",
addr,
nil,
true,
},
{
"existing account",
suite.address,
[]byte("code"),
false,
},
{
"existing account, code deleted from store",
suite.address,
nil,
false,
},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
prev := suite.app.EvmKeeper.GetCode(tc.address)
suite.app.EvmKeeper.SetCode(tc.address, tc.code)
post := suite.app.EvmKeeper.GetCode(tc.address)
if tc.isNoOp {
suite.Require().Equal(prev, post)
} else {
suite.Require().Equal(tc.code, post)
}
suite.Require().Equal(len(post), suite.app.EvmKeeper.GetCodeSize(tc.address))
})
}
}
func (suite *KeeperTestSuite) TestRefund() {
testCases := []struct {
name string
malleate func()
expRefund uint64
expPanic bool
}{
{
"success - add and subtract refund",
func() {
suite.app.EvmKeeper.AddRefund(11)
},
1,
false,
},
{
"fail - subtract amount > current refund",
func() {
},
0,
true,
},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
tc.malleate()
if tc.expPanic {
suite.Require().Panics(func() { suite.app.EvmKeeper.SubRefund(10) })
} else {
suite.app.EvmKeeper.SubRefund(10)
suite.Require().Equal(tc.expRefund, suite.app.EvmKeeper.GetRefund())
}
// clear and reset refund from store
suite.app.EvmKeeper.ResetRefundTransient(suite.ctx)
suite.Require().Zero(suite.app.EvmKeeper.GetRefund())
})
}
}
func (suite *KeeperTestSuite) TestState() {
testCases := []struct {
name string
key, value common.Hash
}{
{
"set state - delete from store",
common.BytesToHash([]byte("key")),
common.Hash{},
},
{
"set state - update value",
common.BytesToHash([]byte("key")),
common.BytesToHash([]byte("value")),
},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
suite.app.EvmKeeper.SetState(suite.address, tc.key, tc.value)
value := suite.app.EvmKeeper.GetState(suite.address, tc.key)
suite.Require().Equal(tc.value, value)
})
}
}
func (suite *KeeperTestSuite) TestCommittedState() {
suite.SetupTest()
key := common.BytesToHash([]byte("key"))
value1 := common.BytesToHash([]byte("value1"))
value2 := common.BytesToHash([]byte("value2"))
suite.app.EvmKeeper.SetState(suite.address, key, value1)
suite.app.EvmKeeper.Snapshot()
suite.app.EvmKeeper.SetState(suite.address, key, value2)
tmp := suite.app.EvmKeeper.GetState(suite.address, key)
suite.Require().Equal(value2, tmp)
tmp = suite.app.EvmKeeper.GetCommittedState(suite.address, key)
suite.Require().Equal(value1, tmp)
suite.app.EvmKeeper.CommitCachedContexts()
tmp = suite.app.EvmKeeper.GetCommittedState(suite.address, key)
suite.Require().Equal(value2, tmp)
}
func (suite *KeeperTestSuite) TestSuicide() {
testCases := []struct {
name string
suicided bool
}{
{"success, first time suicided", true},
{"success, already suicided", true},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
suite.Require().Equal(tc.suicided, suite.app.EvmKeeper.Suicide(suite.address))
suite.Require().Equal(tc.suicided, suite.app.EvmKeeper.HasSuicided(suite.address))
})
}
}
func (suite *KeeperTestSuite) TestExist() {
testCases := []struct {
name string
address common.Address
malleate func()
exists bool
}{
{"success, account exists", suite.address, func() {}, true},
{"success, has suicided", suite.address, func() {
suite.app.EvmKeeper.Suicide(suite.address)
}, true},
{"success, account doesn't exist", tests.GenerateAddress(), func() {}, false},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
tc.malleate()
suite.Require().Equal(tc.exists, suite.app.EvmKeeper.Exist(tc.address))
})
}
}
func (suite *KeeperTestSuite) TestEmpty() {
addr := tests.GenerateAddress()
baseAcc := &authtypes.BaseAccount{Address: sdk.AccAddress(addr.Bytes()).String()}
suite.app.AccountKeeper.SetAccount(suite.ctx, baseAcc)
testCases := []struct {
name string
address common.Address
malleate func()
empty bool
}{
{"empty, account exists", suite.address, func() {}, true},
{"not empty, non ethereum account", addr, func() {}, false},
{"not empty, positive balance", suite.address, func() {
suite.app.EvmKeeper.AddBalance(suite.address, big.NewInt(100))
}, false},
{"empty, account doesn't exist", tests.GenerateAddress(), func() {}, true},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
tc.malleate()
suite.Require().Equal(tc.empty, suite.app.EvmKeeper.Empty(tc.address))
})
}
}
func (suite *KeeperTestSuite) TestSnapshot() {
key := common.BytesToHash([]byte("key"))
value1 := common.BytesToHash([]byte("value1"))
value2 := common.BytesToHash([]byte("value2"))
testCases := []struct {
name string
malleate func()
}{
{"simple revert", func() {
revision := suite.app.EvmKeeper.Snapshot()
suite.Require().Zero(revision)
suite.app.EvmKeeper.SetState(suite.address, key, value1)
suite.Require().Equal(value1, suite.app.EvmKeeper.GetState(suite.address, key))
suite.app.EvmKeeper.RevertToSnapshot(revision)
// reverted
suite.Require().Equal(common.Hash{}, suite.app.EvmKeeper.GetState(suite.address, key))
}},
{"nested snapshot/revert", func() {
revision1 := suite.app.EvmKeeper.Snapshot()
suite.Require().Zero(revision1)
suite.app.EvmKeeper.SetState(suite.address, key, value1)
revision2 := suite.app.EvmKeeper.Snapshot()
suite.app.EvmKeeper.SetState(suite.address, key, value2)
suite.Require().Equal(value2, suite.app.EvmKeeper.GetState(suite.address, key))
suite.app.EvmKeeper.RevertToSnapshot(revision2)
suite.Require().Equal(value1, suite.app.EvmKeeper.GetState(suite.address, key))
suite.app.EvmKeeper.RevertToSnapshot(revision1)
suite.Require().Equal(common.Hash{}, suite.app.EvmKeeper.GetState(suite.address, key))
}},
{"jump revert", func() {
revision1 := suite.app.EvmKeeper.Snapshot()
suite.app.EvmKeeper.SetState(suite.address, key, value1)
suite.app.EvmKeeper.Snapshot()
suite.app.EvmKeeper.SetState(suite.address, key, value2)
suite.app.EvmKeeper.RevertToSnapshot(revision1)
suite.Require().Equal(common.Hash{}, suite.app.EvmKeeper.GetState(suite.address, key))
}},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
suite.SetupTest()
tc.malleate()
// the test case should finish in clean state
suite.Require().True(suite.app.EvmKeeper.CachedContextsEmpty())
})
}
}
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func (suite *KeeperTestSuite) CreateTestTx(msg *types.MsgEthereumTx, priv cryptotypes.PrivKey) authsigning.Tx {
option, err := codectypes.NewAnyWithValue(&types.ExtensionOptionsEthereumTx{})
suite.Require().NoError(err)
txBuilder := suite.clientCtx.TxConfig.NewTxBuilder()
builder, ok := txBuilder.(authtx.ExtensionOptionsTxBuilder)
suite.Require().True(ok)
builder.SetExtensionOptions(option)
err = msg.Sign(suite.ethSigner, tests.NewSigner(priv))
suite.Require().NoError(err)
err = txBuilder.SetMsgs(msg)
suite.Require().NoError(err)
return txBuilder.GetTx()
}
func (suite *KeeperTestSuite) TestAddLog() {
addr, privKey := tests.NewAddrKey()
msg := types.NewTx(big.NewInt(1), 0, &suite.address, big.NewInt(1), 100000, big.NewInt(1), []byte("test"), nil)
msg.From = addr.Hex()
tx := suite.CreateTestTx(msg, privKey)
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msg, _ = tx.GetMsgs()[0].(*types.MsgEthereumTx)
txHash := msg.AsTransaction().Hash()
msg2 := types.NewTx(big.NewInt(1), 1, &suite.address, big.NewInt(1), 100000, big.NewInt(1), []byte("test"), nil)
msg2.From = addr.Hex()
tx2 := suite.CreateTestTx(msg2, privKey)
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msg2, _ = tx2.GetMsgs()[0].(*types.MsgEthereumTx)
txHash2 := msg2.AsTransaction().Hash()
testCases := []struct {
name string
hash common.Hash
log, expLog *ethtypes.Log // pre and post populating log fields
malleate func()
}{
{
"tx hash from message",
txHash,
&ethtypes.Log{
Address: addr,
},
&ethtypes.Log{
Address: addr,
TxHash: txHash,
},
func() {},
},
{
"log index keep increasing in new tx",
txHash2,
&ethtypes.Log{
Address: addr,
},
&ethtypes.Log{
Address: addr,
TxHash: txHash2,
TxIndex: 1,
Index: 1,
},
func() {
suite.app.EvmKeeper.SetTxHashTransient(txHash)
suite.app.EvmKeeper.AddLog(&ethtypes.Log{
Address: addr,
})
suite.app.EvmKeeper.IncreaseTxIndexTransient()
},
},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
suite.SetupTest()
tc.malleate()
suite.app.EvmKeeper.SetTxHashTransient(tc.hash)
suite.app.EvmKeeper.AddLog(tc.log)
logs := suite.app.EvmKeeper.GetTxLogs(tc.hash)
suite.Require().Equal(1, len(logs))
suite.Require().Equal(tc.expLog, logs[0])
})
}
}
func (suite *KeeperTestSuite) TestPrepareAccessList() {
dest := tests.GenerateAddress()
precompiles := []common.Address{tests.GenerateAddress(), tests.GenerateAddress()}
accesses := ethtypes.AccessList{
{Address: tests.GenerateAddress(), StorageKeys: []common.Hash{common.BytesToHash([]byte("key"))}},
{Address: tests.GenerateAddress(), StorageKeys: []common.Hash{common.BytesToHash([]byte("key1"))}},
}
suite.app.EvmKeeper.PrepareAccessList(suite.address, &dest, precompiles, accesses)
suite.Require().True(suite.app.EvmKeeper.AddressInAccessList(suite.address))
suite.Require().True(suite.app.EvmKeeper.AddressInAccessList(dest))
for _, precompile := range precompiles {
suite.Require().True(suite.app.EvmKeeper.AddressInAccessList(precompile))
}
for _, access := range accesses {
for _, key := range access.StorageKeys {
addrOK, slotOK := suite.app.EvmKeeper.SlotInAccessList(access.Address, key)
suite.Require().True(addrOK, access.Address.Hex())
suite.Require().True(slotOK, key.Hex())
}
}
}
func (suite *KeeperTestSuite) TestAddAddressToAccessList() {
testCases := []struct {
name string
addr common.Address
}{
{"new address", suite.address},
{"existing address", suite.address},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
suite.app.EvmKeeper.AddAddressToAccessList(tc.addr)
addrOk := suite.app.EvmKeeper.AddressInAccessList(tc.addr)
suite.Require().True(addrOk, tc.addr.Hex())
})
}
}
func (suite *KeeperTestSuite) AddSlotToAccessList() {
testCases := []struct {
name string
addr common.Address
slot common.Hash
}{
{"new address and slot (1)", tests.GenerateAddress(), common.BytesToHash([]byte("hash"))},
{"new address and slot (2)", suite.address, common.Hash{}},
{"existing address and slot", suite.address, common.Hash{}},
{"existing address, new slot", suite.address, common.BytesToHash([]byte("hash"))},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
suite.app.EvmKeeper.AddSlotToAccessList(tc.addr, tc.slot)
addrOk, slotOk := suite.app.EvmKeeper.SlotInAccessList(tc.addr, tc.slot)
suite.Require().True(addrOk, tc.addr.Hex())
suite.Require().True(slotOk, tc.slot.Hex())
})
}
}
func (suite *KeeperTestSuite) TestForEachStorage() {
var storage types.Storage
testCase := []struct {
name string
malleate func()
callback func(key, value common.Hash) (stop bool)
expValues []common.Hash
}{
{
"aggregate state",
func() {
for i := 0; i < 5; i++ {
suite.app.EvmKeeper.SetState(suite.address, common.BytesToHash([]byte(fmt.Sprintf("key%d", i))), common.BytesToHash([]byte(fmt.Sprintf("value%d", i))))
}
},
func(key, value common.Hash) bool {
storage = append(storage, types.NewState(key, value))
return false
},
[]common.Hash{
common.BytesToHash([]byte("value0")),
common.BytesToHash([]byte("value1")),
common.BytesToHash([]byte("value2")),
common.BytesToHash([]byte("value3")),
common.BytesToHash([]byte("value4")),
},
},
{
"filter state",
func() {
suite.app.EvmKeeper.SetState(suite.address, common.BytesToHash([]byte("key")), common.BytesToHash([]byte("value")))
suite.app.EvmKeeper.SetState(suite.address, common.BytesToHash([]byte("filterkey")), common.BytesToHash([]byte("filtervalue")))
},
func(key, value common.Hash) bool {
if value == common.BytesToHash([]byte("filtervalue")) {
storage = append(storage, types.NewState(key, value))
return true
}
return false
},
[]common.Hash{
common.BytesToHash([]byte("filtervalue")),
},
},
}
for _, tc := range testCase {
suite.Run(tc.name, func() {
suite.SetupTest() // reset
tc.malleate()
err := suite.app.EvmKeeper.ForEachStorage(suite.address, tc.callback)
suite.Require().NoError(err)
suite.Require().Equal(len(tc.expValues), len(storage), fmt.Sprintf("Expected values:\n%v\nStorage Values\n%v", tc.expValues, storage))
vals := make([]common.Hash, len(storage))
for i := range storage {
vals[i] = common.HexToHash(storage[i].Value)
}
// TODO: not sure why Equals fails
suite.Require().ElementsMatch(tc.expValues, vals)
})
storage = types.Storage{}
}
}