lotus/itests/fevm_test.go

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package itests
import (
"bytes"
"context"
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"encoding/binary"
"encoding/hex"
"fmt"
"testing"
"github.com/stretchr/testify/require"
"github.com/filecoin-project/go-address"
"github.com/filecoin-project/go-state-types/big"
builtintypes "github.com/filecoin-project/go-state-types/builtin"
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"github.com/filecoin-project/go-state-types/exitcode"
"github.com/filecoin-project/go-state-types/manifest"
"github.com/filecoin-project/lotus/build"
"github.com/filecoin-project/lotus/chain/types"
"github.com/filecoin-project/lotus/chain/types/ethtypes"
"github.com/filecoin-project/lotus/itests/kit"
)
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// convert a simple byte array into input data which is a left padded 32 byte array
func inputDataFromArray(input []byte) []byte {
inputData := make([]byte, 32)
copy(inputData[32-len(input):], input[:])
return inputData
}
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// convert a "from" address into input data which is a left padded 32 byte array
func inputDataFromFrom(ctx context.Context, t *testing.T, client *kit.TestFullNode, from address.Address) []byte {
fromId, err := client.StateLookupID(ctx, from, types.EmptyTSK)
require.NoError(t, err)
senderEthAddr, err := ethtypes.EthAddressFromFilecoinAddress(fromId)
require.NoError(t, err)
inputData := make([]byte, 32)
copy(inputData[32-len(senderEthAddr):], senderEthAddr[:])
return inputData
}
func decodeOutputToUint64(output []byte) (uint64, error) {
var result uint64
buf := bytes.NewReader(output[len(output)-8:])
err := binary.Read(buf, binary.BigEndian, &result)
return result, err
}
func buildInputFromuint64(number uint64) []byte {
// Convert the number to a binary uint64 array
binaryNumber := make([]byte, 8)
binary.BigEndian.PutUint64(binaryNumber, number)
return inputDataFromArray(binaryNumber)
}
// recursive delegate calls that fail due to gas limits are currently getting to 229 iterations
// before running out of gas
func recursiveDelegatecallFail(ctx context.Context, t *testing.T, client *kit.TestFullNode, filename string, count uint64) {
expectedIterationsBeforeFailing := int(228)
fromAddr, idAddr := client.EVM().DeployContractFromFilename(ctx, filename)
t.Log("recursion count - ", count)
inputData := buildInputFromuint64(count)
_, _, err := client.EVM().InvokeContractByFuncName(ctx, fromAddr, idAddr, "recursiveCall(uint256)", inputData)
require.NoError(t, err)
result, _, err := client.EVM().InvokeContractByFuncName(ctx, fromAddr, idAddr, "totalCalls()", []byte{})
require.NoError(t, err)
resultUint, err := decodeOutputToUint64(result)
require.NoError(t, err)
require.NotEqual(t, int(resultUint), int(count))
require.Equal(t, expectedIterationsBeforeFailing, int(resultUint))
}
func recursiveDelegatecallSuccess(ctx context.Context, t *testing.T, client *kit.TestFullNode, filename string, count uint64) {
t.Log("Count - ", count)
fromAddr, idAddr := client.EVM().DeployContractFromFilename(ctx, filename)
inputData := buildInputFromuint64(count)
_, _, err := client.EVM().InvokeContractByFuncName(ctx, fromAddr, idAddr, "recursiveCall(uint256)", inputData)
require.NoError(t, err)
result, _, err := client.EVM().InvokeContractByFuncName(ctx, fromAddr, idAddr, "totalCalls()", []byte{})
require.NoError(t, err)
resultUint, err := decodeOutputToUint64(result)
require.NoError(t, err)
require.Equal(t, int(count), int(resultUint))
}
// TestFEVMRecursive does a basic fevm contract installation and invocation
func TestFEVMRecursive(t *testing.T) {
callCounts := []uint64{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 100, 230, 330}
ctx, cancel, client := kit.SetupFEVMTest(t)
defer cancel()
filename := "contracts/Recursive.hex"
fromAddr, idAddr := client.EVM().DeployContractFromFilename(ctx, filename)
// Successful calls
for _, callCount := range callCounts {
callCount := callCount // linter unhappy unless callCount is local to loop
t.Run(fmt.Sprintf("TestFEVMRecursive%d", callCount), func(t *testing.T) {
_, _, err := client.EVM().InvokeContractByFuncName(ctx, fromAddr, idAddr, "recursiveCall(uint256)", buildInputFromuint64(callCount))
require.NoError(t, err)
})
}
}
func TestFEVMRecursiveFail(t *testing.T) {
ctx, cancel, client := kit.SetupFEVMTest(t)
defer cancel()
filename := "contracts/Recursive.hex"
fromAddr, idAddr := client.EVM().DeployContractFromFilename(ctx, filename)
// Unsuccessful calls
failCallCounts := []uint64{340, 400, 600, 850, 1000}
for _, failCallCount := range failCallCounts {
failCallCount := failCallCount // linter unhappy unless callCount is local to loop
t.Run(fmt.Sprintf("TestFEVMRecursiveFail%d", failCallCount), func(t *testing.T) {
_, wait, err := client.EVM().InvokeContractByFuncName(ctx, fromAddr, idAddr, "recursiveCall(uint256)", buildInputFromuint64(failCallCount))
require.Error(t, err)
require.Equal(t, exitcode.ExitCode(37), wait.Receipt.ExitCode)
})
}
}
func TestFEVMRecursive1(t *testing.T) {
callCount := 1
ctx, cancel, client := kit.SetupFEVMTest(t)
defer cancel()
filename := "contracts/Recursive.hex"
fromAddr, idAddr := client.EVM().DeployContractFromFilename(ctx, filename)
_, ret, err := client.EVM().InvokeContractByFuncName(ctx, fromAddr, idAddr, "recursive1()", []byte{})
require.NoError(t, err)
events := client.EVM().LoadEvents(ctx, *ret.Receipt.EventsRoot)
require.Equal(t, callCount, len(events))
}
func TestFEVMRecursive2(t *testing.T) {
ctx, cancel, client := kit.SetupFEVMTest(t)
defer cancel()
filename := "contracts/Recursive.hex"
fromAddr, idAddr := client.EVM().DeployContractFromFilename(ctx, filename)
_, ret, err := client.EVM().InvokeContractByFuncName(ctx, fromAddr, idAddr, "recursive2()", []byte{})
require.NoError(t, err)
events := client.EVM().LoadEvents(ctx, *ret.Receipt.EventsRoot)
require.Equal(t, 2, len(events))
}
// TestFEVMRecursiveDelegatecallCount tests the maximum delegatecall recursion depth. It currently
// succeeds succeeds up to 237 times.
func TestFEVMRecursiveDelegatecallCount(t *testing.T) {
ctx, cancel, client := kit.SetupFEVMTest(t)
defer cancel()
highestSuccessCount := uint64(237)
filename := "contracts/RecursiveDelegeatecall.hex"
recursiveDelegatecallSuccess(ctx, t, client, filename, uint64(1))
recursiveDelegatecallSuccess(ctx, t, client, filename, uint64(2))
recursiveDelegatecallSuccess(ctx, t, client, filename, uint64(10))
recursiveDelegatecallSuccess(ctx, t, client, filename, uint64(100))
recursiveDelegatecallSuccess(ctx, t, client, filename, highestSuccessCount)
recursiveDelegatecallFail(ctx, t, client, filename, highestSuccessCount+1)
recursiveDelegatecallFail(ctx, t, client, filename, uint64(1000))
recursiveDelegatecallFail(ctx, t, client, filename, uint64(10000000))
}
// TestFEVMBasic does a basic fevm contract installation and invocation
func TestFEVMBasic(t *testing.T) {
ctx, cancel, client := kit.SetupFEVMTest(t)
defer cancel()
filename := "contracts/SimpleCoin.hex"
// install contract
fromAddr, idAddr := client.EVM().DeployContractFromFilename(ctx, filename)
// invoke the contract with owner
{
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inputData := inputDataFromFrom(ctx, t, client, fromAddr)
result, _, err := client.EVM().InvokeContractByFuncName(ctx, fromAddr, idAddr, "getBalance(address)", inputData)
require.NoError(t, err)
expectedResult, err := hex.DecodeString("0000000000000000000000000000000000000000000000000000000000002710")
require.NoError(t, err)
require.Equal(t, result, expectedResult)
}
// invoke the contract with non owner
{
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inputData := inputDataFromFrom(ctx, t, client, fromAddr)
inputData[31]++ // change the pub address to one that has 0 balance by modifying the last byte of the address
result, _, err := client.EVM().InvokeContractByFuncName(ctx, fromAddr, idAddr, "getBalance(address)", inputData)
require.NoError(t, err)
expectedResult, err := hex.DecodeString("0000000000000000000000000000000000000000000000000000000000000000")
require.NoError(t, err)
require.Equal(t, result, expectedResult)
}
}
// TestFEVMETH0 tests that the ETH0 actor is in genesis
func TestFEVMETH0(t *testing.T) {
ctx, cancel, client := kit.SetupFEVMTest(t)
defer cancel()
eth0id, err := address.NewIDAddress(1001)
require.NoError(t, err)
client.AssertActorType(ctx, eth0id, manifest.EthAccountKey)
act, err := client.StateGetActor(ctx, eth0id, types.EmptyTSK)
require.NoError(t, err)
eth0Addr, err := address.NewDelegatedAddress(builtintypes.EthereumAddressManagerActorID, make([]byte, 20))
require.NoError(t, err)
require.Equal(t, *act.Address, eth0Addr)
}
// TestFEVMDelegateCall deploys two contracts and makes a delegate call transaction
func TestFEVMDelegateCall(t *testing.T) {
ctx, cancel, client := kit.SetupFEVMTest(t)
defer cancel()
//install contract Actor
filenameActor := "contracts/DelegatecallActor.hex"
fromAddr, actorAddr := client.EVM().DeployContractFromFilename(ctx, filenameActor)
//install contract Storage
filenameStorage := "contracts/DelegatecallStorage.hex"
fromAddrStorage, storageAddr := client.EVM().DeployContractFromFilename(ctx, filenameStorage)
require.Equal(t, fromAddr, fromAddrStorage)
//call Contract Storage which makes a delegatecall to contract Actor
//this contract call sets the "counter" variable to 7, from default value 0
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inputDataContract := inputDataFromFrom(ctx, t, client, actorAddr)
inputDataValue := inputDataFromArray([]byte{7})
inputData := append(inputDataContract, inputDataValue...)
//verify that the returned value of the call to setvars is 7
result, _, err := client.EVM().InvokeContractByFuncName(ctx, fromAddr, storageAddr, "setVars(address,uint256)", inputData)
require.NoError(t, err)
expectedResult, err := hex.DecodeString("0000000000000000000000000000000000000000000000000000000000000007")
require.NoError(t, err)
require.Equal(t, result, expectedResult)
//test the value is 7 a second way by calling the getter
result, _, err = client.EVM().InvokeContractByFuncName(ctx, fromAddr, storageAddr, "getCounter()", []byte{})
require.NoError(t, err)
require.Equal(t, result, expectedResult)
//test the value is 0 via calling the getter on the Actor contract
result, _, err = client.EVM().InvokeContractByFuncName(ctx, fromAddr, actorAddr, "getCounter()", []byte{})
require.NoError(t, err)
expectedResultActor, err := hex.DecodeString("0000000000000000000000000000000000000000000000000000000000000000")
require.NoError(t, err)
require.Equal(t, result, expectedResultActor)
}
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// TestFEVMDelegateCallRevert makes a delegatecall action and then calls revert.
// the state should not have changed because of the revert
func TestFEVMDelegateCallRevert(t *testing.T) {
ctx, cancel, client := kit.SetupFEVMTest(t)
defer cancel()
//install contract Actor
filenameActor := "contracts/DelegatecallActor.hex"
fromAddr, actorAddr := client.EVM().DeployContractFromFilename(ctx, filenameActor)
//install contract Storage
filenameStorage := "contracts/DelegatecallStorage.hex"
fromAddrStorage, storageAddr := client.EVM().DeployContractFromFilename(ctx, filenameStorage)
require.Equal(t, fromAddr, fromAddrStorage)
//call Contract Storage which makes a delegatecall to contract Actor
//this contract call sets the "counter" variable to 7, from default value 0
inputDataContract := inputDataFromFrom(ctx, t, client, actorAddr)
inputDataValue := inputDataFromArray([]byte{7})
inputData := append(inputDataContract, inputDataValue...)
//verify that the returned value of the call to setvars is 7
_, wait, err := client.EVM().InvokeContractByFuncName(ctx, fromAddr, storageAddr, "setVarsRevert(address,uint256)", inputData)
require.Error(t, err)
require.Equal(t, exitcode.ExitCode(33), wait.Receipt.ExitCode)
//test the value is 0 via calling the getter and was not set to 7
expectedResult, err := hex.DecodeString("0000000000000000000000000000000000000000000000000000000000000000")
require.NoError(t, err)
result, _, err := client.EVM().InvokeContractByFuncName(ctx, fromAddr, storageAddr, "getCounter()", []byte{})
require.NoError(t, err)
require.Equal(t, result, expectedResult)
//test the value is 0 via calling the getter on the Actor contract
result, _, err = client.EVM().InvokeContractByFuncName(ctx, fromAddr, actorAddr, "getCounter()", []byte{})
require.NoError(t, err)
require.Equal(t, result, expectedResult)
}
// TestFEVMSimpleRevert makes a call that is a simple revert
func TestFEVMSimpleRevert(t *testing.T) {
ctx, cancel, client := kit.SetupFEVMTest(t)
defer cancel()
//install contract Actor
filenameStorage := "contracts/DelegatecallStorage.hex"
fromAddr, contractAddr := client.EVM().DeployContractFromFilename(ctx, filenameStorage)
//call revert
_, wait, err := client.EVM().InvokeContractByFuncName(ctx, fromAddr, contractAddr, "revert()", []byte{})
require.Equal(t, wait.Receipt.ExitCode, exitcode.ExitCode(33))
require.Error(t, err)
}
// TestFEVMSelfDestruct creates a contract that just has a self destruct feature and calls it
func TestFEVMSelfDestruct(t *testing.T) {
ctx, cancel, client := kit.SetupFEVMTest(t)
defer cancel()
//install contract Actor
filenameStorage := "contracts/SelfDestruct.hex"
fromAddr, contractAddr := client.EVM().DeployContractFromFilename(ctx, filenameStorage)
//call destroy
_, _, err := client.EVM().InvokeContractByFuncName(ctx, fromAddr, contractAddr, "destroy()", []byte{})
require.NoError(t, err)
//call destroy a second time and also no error
_, _, err = client.EVM().InvokeContractByFuncName(ctx, fromAddr, contractAddr, "destroy()", []byte{})
require.NoError(t, err)
}
// TestFEVMTestApp deploys a fairly complex app contract and confirms it works as expected
func TestFEVMTestApp(t *testing.T) {
ctx, cancel, client := kit.SetupFEVMTest(t)
defer cancel()
//install contract Actor
filenameStorage := "contracts/TestApp.hex"
fromAddr, contractAddr := client.EVM().DeployContractFromFilename(ctx, filenameStorage)
inputData, err := hex.DecodeString("0000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000000700000000000000000000000000000000000000000000000000000000000000066162636465660000000000000000000000000000000000000000000000000000") // sending string "abcdef" and int 7 - constructed using remix
require.NoError(t, err)
_, _, err = client.EVM().InvokeContractByFuncName(ctx, fromAddr, contractAddr, "new_Test(string,uint256)", inputData)
require.NoError(t, err)
inputData, err = hex.DecodeString("0000000000000000000000000000000000000000000000000000000000000000")
require.NoError(t, err)
_, _, err = client.EVM().InvokeContractByFuncName(ctx, fromAddr, contractAddr, "get_Test_N(uint256)", inputData)
require.NoError(t, err)
}
// TestFEVMTestApp creates a contract that just has a self destruct feature and calls it
func TestFEVMTestConstructor(t *testing.T) {
ctx, cancel, client := kit.SetupFEVMTest(t)
defer cancel()
//install contract Actor
filenameStorage := "contracts/Constructor.hex"
fromAddr, contractAddr := client.EVM().DeployContractFromFilename(ctx, filenameStorage)
//input = uint256{7}. set value and confirm tx success
inputData, err := hex.DecodeString("0000000000000000000000000000000000000000000000000000000000000007")
require.NoError(t, err)
_, _, err = client.EVM().InvokeContractByFuncName(ctx, fromAddr, contractAddr, "new_Test(uint256)", inputData)
require.NoError(t, err)
}
// TestFEVMAutoSelfDestruct creates a contract that just has a self destruct feature and calls it
func TestFEVMAutoSelfDestruct(t *testing.T) {
ctx, cancel, client := kit.SetupFEVMTest(t)
defer cancel()
//install contract Actor
filenameStorage := "contracts/AutoSelfDestruct.hex"
fromAddr, contractAddr := client.EVM().DeployContractFromFilename(ctx, filenameStorage)
//call destroy
_, _, err := client.EVM().InvokeContractByFuncName(ctx, fromAddr, contractAddr, "destroy()", []byte{})
require.NoError(t, err)
}
// TestFEVMTestApp creates a contract that just has a self destruct feature and calls it
func TestFEVMTestSendToContract(t *testing.T) {
ctx, cancel, client := kit.SetupFEVMTest(t)
defer cancel()
bal, err := client.WalletBalance(ctx, client.DefaultKey.Address)
require.NoError(t, err)
//install contract TestApp
filenameStorage := "contracts/SelfDestruct.hex"
fromAddr, contractAddr := client.EVM().DeployContractFromFilename(ctx, filenameStorage)
//transfer half balance to contract
sendAmount := big.Div(bal, big.NewInt(2))
client.EVM().TransferValueOrFail(ctx, fromAddr, contractAddr, sendAmount)
//call self destruct which should return balance
_, _, err = client.EVM().InvokeContractByFuncName(ctx, fromAddr, contractAddr, "destroy()", []byte{})
require.NoError(t, err)
finalBalanceMinimum := types.FromFil(uint64(99_999_999)) // 100 million FIL - 1 FIL for gas upper bounds
finalBal, err := client.WalletBalance(ctx, client.DefaultKey.Address)
require.NoError(t, err)
require.Equal(t, true, finalBal.GreaterThan(finalBalanceMinimum))
}
// creates a contract that would fail when tx are sent to it
// on eth but on fevm it succeeds
// example failing on testnet https://goerli.etherscan.io/address/0x2ff1525e060169dbf97b9461758c8f701f107cd2
func TestFEVMTestNotPayable(t *testing.T) {
ctx, cancel, client := kit.SetupFEVMTest(t)
defer cancel()
fromAddr := client.DefaultKey.Address
t.Log("from - ", fromAddr)
//create contract A
filenameStorage := "contracts/NotPayable.hex"
fromAddr, contractAddr := client.EVM().DeployContractFromFilename(ctx, filenameStorage)
sendAmount := big.NewInt(10_000_000)
client.EVM().TransferValueOrFail(ctx, fromAddr, contractAddr, sendAmount)
}
// tx to non function succeeds
func TestFEVMSendCall(t *testing.T) {
ctx, cancel, client := kit.SetupFEVMTest(t)
defer cancel()
//install contract
filenameActor := "contracts/GasSendTest.hex"
fromAddr, contractAddr := client.EVM().DeployContractFromFilename(ctx, filenameActor)
_, _, err := client.EVM().InvokeContractByFuncName(ctx, fromAddr, contractAddr, "x()", []byte{})
require.NoError(t, err)
}
// creates a contract that would fail when tx are sent to it
// on eth but on fevm it succeeds
// example on goerli of tx failing https://goerli.etherscan.io/address/0xec037bdc9a79420985a53a49fdae3ccf8989909b
func TestFEVMSendGasLimit(t *testing.T) {
ctx, cancel, client := kit.SetupFEVMTest(t)
defer cancel()
//install contract
filenameActor := "contracts/GasLimitSend.hex"
fromAddr, contractAddr := client.EVM().DeployContractFromFilename(ctx, filenameActor)
//send $ to contract
//transfer 1 attoFIL to contract
sendAmount := big.MustFromString("1")
client.EVM().TransferValueOrFail(ctx, fromAddr, contractAddr, sendAmount)
_, _, err := client.EVM().InvokeContractByFuncName(ctx, fromAddr, contractAddr, "getDataLength()", []byte{})
require.NoError(t, err)
}
// TestFEVMDelegateCall deploys the two contracts in TestFEVMDelegateCall but instead of A calling B, A calls A which should cause A to cause A in an infinite loop and should give a reasonable error
func TestFEVMDelegateCallRecursiveFail(t *testing.T) {
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//TODO change the gas limit of this invocation and confirm that the number of errors is
// different
ctx, cancel, client := kit.SetupFEVMTest(t)
defer cancel()
//install contract Actor
filenameActor := "contracts/DelegatecallStorage.hex"
fromAddr, actorAddr := client.EVM().DeployContractFromFilename(ctx, filenameActor)
//any data will do for this test that fails
inputDataContract := inputDataFromFrom(ctx, t, client, actorAddr)
inputDataValue := inputDataFromArray([]byte{7})
inputData := append(inputDataContract, inputDataValue...)
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//verify that we run out of gas then revert.
_, wait, err := client.EVM().InvokeContractByFuncName(ctx, fromAddr, actorAddr, "setVarsSelf(address,uint256)", inputData)
require.Error(t, err)
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require.Equal(t, exitcode.ExitCode(33), wait.Receipt.ExitCode)
//assert no fatal errors but still there are errors::
errorAny := "fatal error"
require.NotContains(t, err.Error(), errorAny)
}
// TestFEVMTestSendValueThroughContracts creates A and B contract and exchanges value
// and self destructs and accounts for value sent
func TestFEVMTestSendValueThroughContractsAndDestroy(t *testing.T) {
ctx, cancel, client := kit.SetupFEVMTest(t)
defer cancel()
fromAddr := client.DefaultKey.Address
t.Log("from - ", fromAddr)
//create contract A
filenameStorage := "contracts/ValueSender.hex"
fromAddr, contractAddr := client.EVM().DeployContractFromFilename(ctx, filenameStorage)
//create contract B
ret, _, err := client.EVM().InvokeContractByFuncName(ctx, fromAddr, contractAddr, "createB()", []byte{})
require.NoError(t, err)
ethAddr, err := ethtypes.CastEthAddress(ret[12:])
require.NoError(t, err)
contractBAddress, err := ethAddr.ToFilecoinAddress()
require.NoError(t, err)
t.Log("contractBAddress - ", contractBAddress)
//self destruct contract B
_, _, err = client.EVM().InvokeContractByFuncName(ctx, fromAddr, contractBAddress, "selfDestruct()", []byte{})
require.NoError(t, err)
}
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func TestEVMRpcDisable(t *testing.T) {
client, _, _ := kit.EnsembleMinimal(t, kit.MockProofs(), kit.ThroughRPC(), kit.DisableEthRPC())
_, err := client.EthBlockNumber(context.Background())
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require.ErrorContains(t, err, "module disabled, enable with Fevm.EnableEthRPC")
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}
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// TestFEVMRecursiveFuncCall deploys a contract and makes a recursive function calls
func TestFEVMRecursiveFuncCall(t *testing.T) {
ctx, cancel, client := kit.SetupFEVMTest(t)
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defer cancel()
//install contract Actor
filenameActor := "contracts/StackFunc.hex"
fromAddr, actorAddr := client.EVM().DeployContractFromFilename(ctx, filenameActor)
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testN := func(n int, ex exitcode.ExitCode) func(t *testing.T) {
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return func(t *testing.T) {
inputData := make([]byte, 32)
binary.BigEndian.PutUint64(inputData[24:], uint64(n))
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client.EVM().InvokeContractByFuncNameExpectExit(ctx, fromAddr, actorAddr, "exec1(uint256)", inputData, ex)
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}
}
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t.Run("n=0", testN(0, exitcode.Ok))
t.Run("n=1", testN(1, exitcode.Ok))
t.Run("n=20", testN(20, exitcode.Ok))
t.Run("n=200", testN(200, exitcode.Ok))
t.Run("n=507", testN(507, exitcode.Ok))
t.Run("n=508", testN(508, exitcode.ExitCode(37))) // 37 means stack overflow
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}
// TestFEVMRecursiveActorCall deploys a contract and makes a recursive actor calls
func TestFEVMRecursiveActorCall(t *testing.T) {
ctx, cancel, client := kit.SetupFEVMTest(t)
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defer cancel()
//install contract Actor
filenameActor := "contracts/RecCall.hex"
fromAddr, actorAddr := client.EVM().DeployContractFromFilename(ctx, filenameActor)
testN := func(n, r int, ex exitcode.ExitCode) func(t *testing.T) {
return func(t *testing.T) {
inputData := make([]byte, 32*3)
binary.BigEndian.PutUint64(inputData[24:], uint64(n))
binary.BigEndian.PutUint64(inputData[32+24:], uint64(n))
binary.BigEndian.PutUint64(inputData[32+32+24:], uint64(r))
client.EVM().InvokeContractByFuncNameExpectExit(ctx, fromAddr, actorAddr, "exec1(uint256,uint256,uint256)", inputData, ex)
}
}
t.Run("n=0,r=1", testN(0, 1, exitcode.Ok))
t.Run("n=1,r=1", testN(1, 1, exitcode.Ok))
t.Run("n=20,r=1", testN(20, 1, exitcode.Ok))
t.Run("n=200,r=1", testN(200, 1, exitcode.Ok))
t.Run("n=251,r=1", testN(251, 1, exitcode.Ok))
t.Run("n=252,r=1-fails", testN(252, 1, exitcode.ExitCode(37))) // 37 means stack overflow
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t.Run("n=0,r=10", testN(0, 10, exitcode.Ok))
t.Run("n=1,r=10", testN(1, 10, exitcode.Ok))
t.Run("n=20,r=10", testN(20, 10, exitcode.Ok))
t.Run("n=200,r=10", testN(200, 10, exitcode.Ok))
t.Run("n=251,r=10", testN(251, 10, exitcode.Ok))
t.Run("n=252,r=10-fails", testN(252, 10, exitcode.ExitCode(37)))
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t.Run("n=0,r=32", testN(0, 32, exitcode.Ok))
t.Run("n=1,r=32", testN(1, 32, exitcode.Ok))
t.Run("n=20,r=32", testN(20, 32, exitcode.Ok))
t.Run("n=200,r=32", testN(200, 32, exitcode.Ok))
t.Run("n=251,r=32", testN(251, 32, exitcode.Ok))
t.Run("n=0,r=254", testN(0, 254, exitcode.Ok))
t.Run("n=251,r=166", testN(251, 166, exitcode.Ok))
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t.Run("n=0,r=256-fails", testN(0, 256, exitcode.ExitCode(33))) // 33 means transaction reverted
t.Run("n=251,r=167-fails", testN(251, 167, exitcode.ExitCode(33)))
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}
// TestFEVMRecursiveActorCallEstimate
func TestFEVMRecursiveActorCallEstimate(t *testing.T) {
ctx, cancel, client := kit.SetupFEVMTest(t)
defer cancel()
//install contract Actor
filenameActor := "contracts/ExternalRecursiveCallSimple.hex"
_, actorAddr := client.EVM().DeployContractFromFilename(ctx, filenameActor)
contractAddr, err := ethtypes.EthAddressFromFilecoinAddress(actorAddr)
require.NoError(t, err)
// create a new Ethereum account
key, ethAddr, ethFilAddr := client.EVM().NewAccount()
kit.SendFunds(ctx, t, client, ethFilAddr, types.FromFil(1000))
makeParams := func(r int) []byte {
funcSignature := "exec1(uint256)"
entryPoint := kit.CalcFuncSignature(funcSignature)
inputData := make([]byte, 32)
binary.BigEndian.PutUint64(inputData[24:], uint64(r))
params := append(entryPoint, inputData...)
return params
}
testN := func(r int) func(t *testing.T) {
return func(t *testing.T) {
t.Logf("running with %d recursive calls", r)
params := makeParams(r)
gaslimit, err := client.EthEstimateGas(ctx, ethtypes.EthCall{
From: &ethAddr,
To: &contractAddr,
Data: params,
})
require.NoError(t, err)
require.LessOrEqual(t, int64(gaslimit), build.BlockGasLimit)
t.Logf("EthEstimateGas GasLimit=%d", gaslimit)
maxPriorityFeePerGas, err := client.EthMaxPriorityFeePerGas(ctx)
require.NoError(t, err)
nonce, err := client.MpoolGetNonce(ctx, ethFilAddr)
require.NoError(t, err)
tx := &ethtypes.EthTxArgs{
ChainID: build.Eip155ChainId,
To: &contractAddr,
Value: big.Zero(),
Nonce: int(nonce),
MaxFeePerGas: types.NanoFil,
MaxPriorityFeePerGas: big.Int(maxPriorityFeePerGas),
GasLimit: int(gaslimit),
Input: params,
V: big.Zero(),
R: big.Zero(),
S: big.Zero(),
}
client.EVM().SignTransaction(tx, key.PrivateKey)
hash := client.EVM().SubmitTransaction(ctx, tx)
smsg, err := tx.ToSignedMessage()
require.NoError(t, err)
_, err = client.StateWaitMsg(ctx, smsg.Cid(), 0, 0, false)
require.NoError(t, err)
receipt, err := client.EthGetTransactionReceipt(ctx, hash)
require.NoError(t, err)
require.NotNil(t, receipt)
t.Logf("Receipt GasUsed=%d", receipt.GasUsed)
t.Logf("Ratio %0.2f", float64(receipt.GasUsed)/float64(gaslimit))
t.Logf("Overestimate %0.2f", ((float64(gaslimit)/float64(receipt.GasUsed))-1)*100)
require.EqualValues(t, ethtypes.EthUint64(1), receipt.Status)
}
}
t.Run("n=1", testN(1))
t.Run("n=2", testN(2))
t.Run("n=3", testN(3))
t.Run("n=4", testN(4))
t.Run("n=5", testN(5))
t.Run("n=10", testN(10))
t.Run("n=20", testN(20))
t.Run("n=30", testN(30))
t.Run("n=40", testN(40))
t.Run("n=50", testN(50))
t.Run("n=100", testN(100))
}