diff options
Diffstat (limited to 'eth/tracers/tracers_test.go')
| -rw-r--r-- | eth/tracers/tracers_test.go | 84 |
1 files changed, 83 insertions, 1 deletions
diff --git a/eth/tracers/tracers_test.go b/eth/tracers/tracers_test.go index d25fc459a..b435b1694 100644 --- a/eth/tracers/tracers_test.go +++ b/eth/tracers/tracers_test.go @@ -17,6 +17,8 @@ package tracers import ( + "crypto/ecdsa" + "crypto/rand" "encoding/json" "io/ioutil" "math/big" @@ -31,7 +33,9 @@ import ( "github.com/ethereum/go-ethereum/core" "github.com/ethereum/go-ethereum/core/types" "github.com/ethereum/go-ethereum/core/vm" + "github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/ethdb" + "github.com/ethereum/go-ethereum/params" "github.com/ethereum/go-ethereum/rlp" "github.com/ethereum/go-ethereum/tests" ) @@ -116,6 +120,83 @@ type callTracerTest struct { Result *callTrace `json:"result"` } +func TestPrestateTracerCreate2(t *testing.T) { + unsigned_tx := types.NewTransaction(1, common.HexToAddress("0x00000000000000000000000000000000deadbeef"), + new(big.Int), 5000000, big.NewInt(1), []byte{}) + + privateKeyECDSA, err := ecdsa.GenerateKey(crypto.S256(), rand.Reader) + if err != nil { + t.Fatalf("err %v", err) + } + signer := types.NewEIP155Signer(big.NewInt(1)) + tx, err := types.SignTx(unsigned_tx, signer, privateKeyECDSA) + if err != nil { + t.Fatalf("err %v", err) + } + /** + This comes from one of the test-vectors on the Skinny Create2 - EIP + + address 0x00000000000000000000000000000000deadbeef + salt 0x00000000000000000000000000000000000000000000000000000000cafebabe + init_code 0xdeadbeef + gas (assuming no mem expansion): 32006 + result: 0x60f3f640a8508fC6a86d45DF051962668E1e8AC7 + */ + origin, _ := signer.Sender(tx) + context := vm.Context{ + CanTransfer: core.CanTransfer, + Transfer: core.Transfer, + Origin: origin, + Coinbase: common.Address{}, + BlockNumber: new(big.Int).SetUint64(8000000), + Time: new(big.Int).SetUint64(5), + Difficulty: big.NewInt(0x30000), + GasLimit: uint64(6000000), + GasPrice: big.NewInt(1), + } + alloc := core.GenesisAlloc{} + // The code pushes 'deadbeef' into memory, then the other params, and calls CREATE2, then returns + // the address + alloc[common.HexToAddress("0x00000000000000000000000000000000deadbeef")] = core.GenesisAccount{ + Nonce: 1, + Code: hexutil.MustDecode("0x63deadbeef60005263cafebabe6004601c6000F560005260206000F3"), + Balance: big.NewInt(1), + } + alloc[origin] = core.GenesisAccount{ + Nonce: 1, + Code: []byte{}, + Balance: big.NewInt(500000000000000), + } + statedb := tests.MakePreState(ethdb.NewMemDatabase(), alloc) + // Create the tracer, the EVM environment and run it + tracer, err := New("prestateTracer") + if err != nil { + t.Fatalf("failed to create call tracer: %v", err) + } + evm := vm.NewEVM(context, statedb, params.MainnetChainConfig, vm.Config{Debug: true, Tracer: tracer}) + + msg, err := tx.AsMessage(signer) + if err != nil { + t.Fatalf("failed to prepare transaction for tracing: %v", err) + } + st := core.NewStateTransition(evm, msg, new(core.GasPool).AddGas(tx.Gas())) + if _, _, _, err = st.TransitionDb(); err != nil { + t.Fatalf("failed to execute transaction: %v", err) + } + // Retrieve the trace result and compare against the etalon + res, err := tracer.GetResult() + if err != nil { + t.Fatalf("failed to retrieve trace result: %v", err) + } + ret := make(map[string]interface{}) + if err := json.Unmarshal(res, &ret); err != nil { + t.Fatalf("failed to unmarshal trace result: %v", err) + } + if _, has := ret["0x60f3f640a8508fc6a86d45df051962668e1e8ac7"]; !has { + t.Fatalf("Expected 0x60f3f640a8508fc6a86d45df051962668e1e8ac7 in result") + } +} + // Iterates over all the input-output datasets in the tracer test harness and // runs the JavaScript tracers against them. func TestCallTracer(t *testing.T) { @@ -185,8 +266,9 @@ func TestCallTracer(t *testing.T) { if err := json.Unmarshal(res, ret); err != nil { t.Fatalf("failed to unmarshal trace result: %v", err) } + if !reflect.DeepEqual(ret, test.Result) { - t.Fatalf("trace mismatch: have %+v, want %+v", ret, test.Result) + t.Fatalf("trace mismatch: \nhave %+v\nwant %+v", ret, test.Result) } }) } |