test: eth: make sure we can deploy a new placeholder on transfer (#10281)

We have a test that triggers smart-contract logic on "transfers", but nothing that tries to create a new actor as a side-effect of a transfer.

fixes https://github.com/filecoin-project/ref-fvm/issues/1670

itests/fevm_test.go

@@ -844,6 +844,39 @@ func TestFEVMBareTransferTriggersSmartContractLogic(t *testing.T) {
 	require.Len(t, receipt.Logs, 1)
 }
 
+// This test ensures that we can deploy new contracts from a solidity call to `transfer` without
+// exceeding the 10M gas limit.
+func TestFEVMTestDeployOnTransfer(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)
+
+	//send to some random address.
+	params := [32]byte{}
+	params[30] = 0xff
+	randomAddr, err := ethtypes.CastEthAddress(params[12:])
+	value := big.NewInt(100)
+	entryPoint := kit.CalcFuncSignature("sendEthToB(address)")
+	require.NoError(t, err)
+	ret, err := client.EVM().InvokeSolidityWithValue(ctx, fromAddr, contractAddr, entryPoint, params[:], value)
+	require.NoError(t, err)
+	require.True(t, ret.Receipt.ExitCode.IsSuccess())
+
+	balance, err := client.EVM().EthGetBalance(ctx, randomAddr, "latest")
+	require.NoError(t, err)
+	require.Equal(t, value.Int, balance.Int)
+
+	filAddr, err := randomAddr.ToFilecoinAddress()
+	require.NoError(t, err)
+	client.AssertActorType(ctx, filAddr, manifest.PlaceholderKey)
+}
+
 func TestFEVMProxyUpgradeable(t *testing.T) {
 	ctx, cancel, client := kit.SetupFEVMTest(t)
 	defer cancel()

itests/kit/evm.go

@@ -104,6 +104,10 @@ func (e *EVM) DeployContractFromFilename(ctx context.Context, binFilename string
 }
 
 func (e *EVM) InvokeSolidity(ctx context.Context, sender address.Address, target address.Address, selector []byte, inputData []byte) (*api.MsgLookup, error) {
+	return e.InvokeSolidityWithValue(ctx, sender, target, selector, inputData, big.Zero())
+}
+
+func (e *EVM) InvokeSolidityWithValue(ctx context.Context, sender address.Address, target address.Address, selector []byte, inputData []byte, value big.Int) (*api.MsgLookup, error) {
 	params := append(selector, inputData...)
 	var buffer bytes.Buffer
 	err := cbg.WriteByteArray(&buffer, params)
@@ -115,7 +119,7 @@ func (e *EVM) InvokeSolidity(ctx context.Context, sender address.Address, target
 	msg := &types.Message{
 		To:       target,
 		From:     sender,
-		Value:    big.Zero(),
+		Value:    value,
 		Method:   builtintypes.MethodsEVM.InvokeContract,
 		GasLimit: build.BlockGasLimit, // note: we hardcode block gas limit due to slightly broken gas estimation - https://github.com/filecoin-project/lotus/issues/10041
 		Params:   params,