forked from cerc-io/plugeth
c66ca8bf7a
In the tracing tests, the base fee was generally set to nil. This commit changes this to pass the proper base instead, and fixes the few tests which become broken by the change.
209 lines
7.1 KiB
Go
209 lines
7.1 KiB
Go
package tracetest
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import (
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"encoding/json"
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"fmt"
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"math/big"
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"os"
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"path/filepath"
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"reflect"
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"strings"
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"testing"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/common/hexutil"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/core/rawdb"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/core/vm"
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"github.com/ethereum/go-ethereum/rlp"
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"github.com/ethereum/go-ethereum/tests"
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// Force-load the native, to trigger registration
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"github.com/ethereum/go-ethereum/eth/tracers"
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)
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// flatCallTrace is the result of a callTracerParity run.
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type flatCallTrace struct {
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Action flatCallTraceAction `json:"action"`
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BlockHash common.Hash `json:"-"`
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BlockNumber uint64 `json:"-"`
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Error string `json:"error,omitempty"`
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Result flatCallTraceResult `json:"result,omitempty"`
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Subtraces int `json:"subtraces"`
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TraceAddress []int `json:"traceAddress"`
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TransactionHash common.Hash `json:"-"`
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TransactionPosition uint64 `json:"-"`
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Type string `json:"type"`
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Time string `json:"-"`
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}
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type flatCallTraceAction struct {
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Author common.Address `json:"author,omitempty"`
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RewardType string `json:"rewardType,omitempty"`
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SelfDestructed common.Address `json:"address,omitempty"`
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Balance hexutil.Big `json:"balance,omitempty"`
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CallType string `json:"callType,omitempty"`
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CreationMethod string `json:"creationMethod,omitempty"`
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From common.Address `json:"from,omitempty"`
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Gas hexutil.Uint64 `json:"gas,omitempty"`
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Init hexutil.Bytes `json:"init,omitempty"`
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Input hexutil.Bytes `json:"input,omitempty"`
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RefundAddress common.Address `json:"refundAddress,omitempty"`
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To common.Address `json:"to,omitempty"`
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Value hexutil.Big `json:"value,omitempty"`
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}
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type flatCallTraceResult struct {
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Address common.Address `json:"address,omitempty"`
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Code hexutil.Bytes `json:"code,omitempty"`
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GasUsed hexutil.Uint64 `json:"gasUsed,omitempty"`
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Output hexutil.Bytes `json:"output,omitempty"`
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}
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// flatCallTracerTest defines a single test to check the call tracer against.
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type flatCallTracerTest struct {
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Genesis core.Genesis `json:"genesis"`
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Context callContext `json:"context"`
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Input string `json:"input"`
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TracerConfig json.RawMessage `json:"tracerConfig"`
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Result []flatCallTrace `json:"result"`
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}
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func flatCallTracerTestRunner(tracerName string, filename string, dirPath string, t testing.TB) error {
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// Call tracer test found, read if from disk
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blob, err := os.ReadFile(filepath.Join("testdata", dirPath, filename))
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if err != nil {
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return fmt.Errorf("failed to read testcase: %v", err)
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}
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test := new(flatCallTracerTest)
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if err := json.Unmarshal(blob, test); err != nil {
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return fmt.Errorf("failed to parse testcase: %v", err)
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}
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// Configure a blockchain with the given prestate
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tx := new(types.Transaction)
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if err := rlp.DecodeBytes(common.FromHex(test.Input), tx); err != nil {
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return fmt.Errorf("failed to parse testcase input: %v", err)
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}
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signer := types.MakeSigner(test.Genesis.Config, new(big.Int).SetUint64(uint64(test.Context.Number)), uint64(test.Context.Time))
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context := vm.BlockContext{
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CanTransfer: core.CanTransfer,
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Transfer: core.Transfer,
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Coinbase: test.Context.Miner,
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BlockNumber: new(big.Int).SetUint64(uint64(test.Context.Number)),
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Time: uint64(test.Context.Time),
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Difficulty: (*big.Int)(test.Context.Difficulty),
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GasLimit: uint64(test.Context.GasLimit),
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}
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triedb, _, statedb := tests.MakePreState(rawdb.NewMemoryDatabase(), test.Genesis.Alloc, false, rawdb.HashScheme)
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defer triedb.Close()
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// Create the tracer, the EVM environment and run it
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tracer, err := tracers.DefaultDirectory.New(tracerName, new(tracers.Context), test.TracerConfig)
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if err != nil {
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return fmt.Errorf("failed to create call tracer: %v", err)
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}
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msg, err := core.TransactionToMessage(tx, signer, context.BaseFee)
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if err != nil {
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return fmt.Errorf("failed to prepare transaction for tracing: %v", err)
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}
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evm := vm.NewEVM(context, core.NewEVMTxContext(msg), statedb, test.Genesis.Config, vm.Config{Tracer: tracer})
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st := core.NewStateTransition(evm, msg, new(core.GasPool).AddGas(tx.Gas()))
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if _, err = st.TransitionDb(); err != nil {
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return fmt.Errorf("failed to execute transaction: %v", err)
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}
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// Retrieve the trace result and compare against the etalon
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res, err := tracer.GetResult()
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if err != nil {
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return fmt.Errorf("failed to retrieve trace result: %v", err)
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}
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ret := make([]flatCallTrace, 0)
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if err := json.Unmarshal(res, &ret); err != nil {
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return fmt.Errorf("failed to unmarshal trace result: %v", err)
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}
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if !jsonEqualFlat(ret, test.Result) {
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t.Logf("tracer name: %s", tracerName)
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// uncomment this for easier debugging
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// have, _ := json.MarshalIndent(ret, "", " ")
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// want, _ := json.MarshalIndent(test.Result, "", " ")
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// t.Logf("trace mismatch: \nhave %+v\nwant %+v", string(have), string(want))
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// uncomment this for harder debugging <3 meowsbits
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// lines := deep.Equal(ret, test.Result)
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// for _, l := range lines {
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// t.Logf("%s", l)
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// t.FailNow()
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// }
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t.Fatalf("trace mismatch: \nhave %+v\nwant %+v", ret, test.Result)
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}
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return nil
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}
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// Iterates over all the input-output datasets in the tracer parity test harness and
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// runs the Native tracer against them.
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func TestFlatCallTracerNative(t *testing.T) {
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testFlatCallTracer("flatCallTracer", "call_tracer_flat", t)
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}
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func testFlatCallTracer(tracerName string, dirPath string, t *testing.T) {
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files, err := os.ReadDir(filepath.Join("testdata", dirPath))
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if err != nil {
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t.Fatalf("failed to retrieve tracer test suite: %v", err)
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}
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for _, file := range files {
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if !strings.HasSuffix(file.Name(), ".json") {
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continue
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}
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file := file // capture range variable
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t.Run(camel(strings.TrimSuffix(file.Name(), ".json")), func(t *testing.T) {
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t.Parallel()
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err := flatCallTracerTestRunner(tracerName, file.Name(), dirPath, t)
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if err != nil {
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t.Fatal(err)
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}
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})
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}
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}
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// jsonEqual is similar to reflect.DeepEqual, but does a 'bounce' via json prior to
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// comparison
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func jsonEqualFlat(x, y interface{}) bool {
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xTrace := new([]flatCallTrace)
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yTrace := new([]flatCallTrace)
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if xj, err := json.Marshal(x); err == nil {
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json.Unmarshal(xj, xTrace)
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} else {
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return false
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}
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if yj, err := json.Marshal(y); err == nil {
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json.Unmarshal(yj, yTrace)
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} else {
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return false
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}
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return reflect.DeepEqual(xTrace, yTrace)
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}
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func BenchmarkFlatCallTracer(b *testing.B) {
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files, err := filepath.Glob("testdata/call_tracer_flat/*.json")
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if err != nil {
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b.Fatalf("failed to read testdata: %v", err)
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}
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for _, file := range files {
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filename := strings.TrimPrefix(file, "testdata/call_tracer_flat/")
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b.Run(camel(strings.TrimSuffix(filename, ".json")), func(b *testing.B) {
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for n := 0; n < b.N; n++ {
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err := flatCallTracerTestRunner("flatCallTracer", filename, "call_tracer_flat", b)
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if err != nil {
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b.Fatal(err)
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}
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}
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})
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}
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}
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