lotus/itests/kit/evm.go

100 lines
2.5 KiB
Go

package kit
import (
"bytes"
"context"
"encoding/binary"
"github.com/stretchr/testify/require"
cbg "github.com/whyrusleeping/cbor-gen"
"github.com/filecoin-project/go-address"
"github.com/filecoin-project/go-state-types/abi"
"github.com/filecoin-project/go-state-types/big"
builtintypes "github.com/filecoin-project/go-state-types/builtin"
"github.com/filecoin-project/go-state-types/builtin/v10/eam"
"github.com/filecoin-project/lotus/api"
"github.com/filecoin-project/lotus/chain/actors"
"github.com/filecoin-project/lotus/chain/types"
)
// EVM groups EVM-related actions.
type EVM struct{ *TestFullNode }
func (f *TestFullNode) EVM() *EVM {
return &EVM{f}
}
func (e *EVM) DeployContract(ctx context.Context, sender address.Address, bytecode []byte) eam.CreateReturn {
require := require.New(e.t)
nonce, err := e.MpoolGetNonce(ctx, sender)
if err != nil {
nonce = 0 // assume a zero nonce on error (e.g. sender doesn't exist).
}
var salt [32]byte
binary.BigEndian.PutUint64(salt[:], nonce)
method := builtintypes.MethodsEAM.Create2
params, err := actors.SerializeParams(&eam.Create2Params{
Initcode: bytecode,
Salt: salt,
})
require.NoError(err)
msg := &types.Message{
To: builtintypes.EthereumAddressManagerActorAddr,
From: sender,
Value: big.Zero(),
Method: method,
Params: params,
}
e.t.Log("sending create message")
smsg, err := e.MpoolPushMessage(ctx, msg, nil)
require.NoError(err)
e.t.Log("waiting for message to execute")
wait, err := e.StateWaitMsg(ctx, smsg.Cid(), 0, 0, false)
require.NoError(err)
require.True(wait.Receipt.ExitCode.IsSuccess(), "contract installation failed")
var result eam.CreateReturn
r := bytes.NewReader(wait.Receipt.Return)
err = result.UnmarshalCBOR(r)
require.NoError(err)
return result
}
func (e *EVM) InvokeSolidity(ctx context.Context, sender address.Address, target address.Address, selector []byte, inputData []byte) *api.MsgLookup {
require := require.New(e.t)
params := append(selector, inputData...)
var buffer bytes.Buffer
err := cbg.WriteByteArray(&buffer, params)
require.NoError(err)
params = buffer.Bytes()
msg := &types.Message{
To: target,
From: sender,
Value: big.Zero(),
Method: abi.MethodNum(2),
Params: params,
}
e.t.Log("sending invoke message")
smsg, err := e.MpoolPushMessage(ctx, msg, nil)
require.NoError(err)
e.t.Log("waiting for message to execute")
wait, err := e.StateWaitMsg(ctx, smsg.Cid(), 0, 0, false)
require.NoError(err)
return wait
}