plugeth/tests/state_test.go

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// Copyright 2015 The go-ethereum Authors
// This file is part of the go-ethereum library.
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//
// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package tests
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import (
"bufio"
"bytes"
"fmt"
"math/big"
"os"
"path/filepath"
"reflect"
"strings"
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"testing"
"time"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/rawdb"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/eth/tracers/logger"
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)
func TestState(t *testing.T) {
t.Parallel()
st := new(testMatcher)
// Long tests:
st.slow(`^stAttackTest/ContractCreationSpam`)
st.slow(`^stBadOpcode/badOpcodes`)
st.slow(`^stPreCompiledContracts/modexp`)
st.slow(`^stQuadraticComplexityTest/`)
st.slow(`^stStaticCall/static_Call50000`)
st.slow(`^stStaticCall/static_Return50000`)
st.slow(`^stSystemOperationsTest/CallRecursiveBomb`)
st.slow(`^stTransactionTest/Opcodes_TransactionInit`)
// Very time consuming
st.skipLoad(`^stTimeConsuming/`)
st.skipLoad(`.*vmPerformance/loop.*`)
// Uses 1GB RAM per tested fork
st.skipLoad(`^stStaticCall/static_Call1MB`)
// Not yet supported TODO
st.skipLoad(`^stEIP3540/`)
st.skipLoad(`^stEIP3860/`)
// Broken tests:
// Expected failures:
// For Istanbul, older tests were moved into LegacyTests
for _, dir := range []string{
stateTestDir,
legacyStateTestDir,
benchmarksDir,
} {
st.walk(t, dir, func(t *testing.T, name string, test *StateTest) {
for _, subtest := range test.Subtests() {
subtest := subtest
key := fmt.Sprintf("%s/%d", subtest.Fork, subtest.Index)
t.Run(key+"/trie", func(t *testing.T) {
withTrace(t, test.gasLimit(subtest), func(vmconfig vm.Config) error {
_, _, err := test.Run(subtest, vmconfig, false)
return st.checkFailure(t, err)
})
})
t.Run(key+"/snap", func(t *testing.T) {
withTrace(t, test.gasLimit(subtest), func(vmconfig vm.Config) error {
snaps, statedb, err := test.Run(subtest, vmconfig, true)
if snaps != nil && statedb != nil {
if _, err := snaps.Journal(statedb.IntermediateRoot(false)); err != nil {
return err
}
}
return st.checkFailure(t, err)
})
})
}
})
}
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}
// Transactions with gasLimit above this value will not get a VM trace on failure.
const traceErrorLimit = 400000
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func withTrace(t *testing.T, gasLimit uint64, test func(vm.Config) error) {
// Use config from command line arguments.
config := vm.Config{}
err := test(config)
if err == nil {
return
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}
// Test failed, re-run with tracing enabled.
t.Error(err)
if gasLimit > traceErrorLimit {
t.Log("gas limit too high for EVM trace")
return
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}
buf := new(bytes.Buffer)
w := bufio.NewWriter(buf)
tracer := logger.NewJSONLogger(&logger.Config{}, w)
config.Debug, config.Tracer = true, tracer
err2 := test(config)
if !reflect.DeepEqual(err, err2) {
t.Errorf("different error for second run: %v", err2)
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}
w.Flush()
if buf.Len() == 0 {
t.Log("no EVM operation logs generated")
} else {
t.Log("EVM operation log:\n" + buf.String())
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}
// t.Logf("EVM output: 0x%x", tracer.Output())
// t.Logf("EVM error: %v", tracer.Error())
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}
func BenchmarkEVM(b *testing.B) {
// Walk the directory.
dir := benchmarksDir
dirinfo, err := os.Stat(dir)
if os.IsNotExist(err) || !dirinfo.IsDir() {
fmt.Fprintf(os.Stderr, "can't find test files in %s, did you clone the evm-benchmarks submodule?\n", dir)
b.Skip("missing test files")
}
err = filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
if info.IsDir() {
return nil
}
if ext := filepath.Ext(path); ext == ".json" {
name := filepath.ToSlash(strings.TrimPrefix(strings.TrimSuffix(path, ext), dir+string(filepath.Separator)))
b.Run(name, func(b *testing.B) { runBenchmarkFile(b, path) })
}
return nil
})
if err != nil {
b.Fatal(err)
}
}
func runBenchmarkFile(b *testing.B, path string) {
m := make(map[string]StateTest)
if err := readJSONFile(path, &m); err != nil {
b.Fatal(err)
return
}
if len(m) != 1 {
b.Fatal("expected single benchmark in a file")
return
}
for _, t := range m {
t := t
runBenchmark(b, &t)
}
}
func runBenchmark(b *testing.B, t *StateTest) {
for _, subtest := range t.Subtests() {
subtest := subtest
key := fmt.Sprintf("%s/%d", subtest.Fork, subtest.Index)
b.Run(key, func(b *testing.B) {
vmconfig := vm.Config{}
config, eips, err := GetChainConfig(subtest.Fork)
if err != nil {
b.Error(err)
return
}
var rules = config.Rules(new(big.Int), false, 0)
vmconfig.ExtraEips = eips
block := t.genesis(config).ToBlock()
_, statedb := MakePreState(rawdb.NewMemoryDatabase(), t.json.Pre, false)
var baseFee *big.Int
if rules.IsLondon {
baseFee = t.json.Env.BaseFee
if baseFee == nil {
// Retesteth uses `0x10` for genesis baseFee. Therefore, it defaults to
// parent - 2 : 0xa as the basefee for 'this' context.
baseFee = big.NewInt(0x0a)
}
}
post := t.json.Post[subtest.Fork][subtest.Index]
msg, err := t.json.Tx.toMessage(post, baseFee)
if err != nil {
b.Error(err)
return
}
// Try to recover tx with current signer
if len(post.TxBytes) != 0 {
var ttx types.Transaction
err := ttx.UnmarshalBinary(post.TxBytes)
if err != nil {
b.Error(err)
return
}
if _, err := types.Sender(types.LatestSigner(config), &ttx); err != nil {
b.Error(err)
return
}
}
// Prepare the EVM.
txContext := core.NewEVMTxContext(msg)
context := core.NewEVMBlockContext(block.Header(), nil, &t.json.Env.Coinbase)
context.GetHash = vmTestBlockHash
context.BaseFee = baseFee
evm := vm.NewEVM(context, txContext, statedb, config, vmconfig)
// Create "contract" for sender to cache code analysis.
sender := vm.NewContract(vm.AccountRef(msg.From()), vm.AccountRef(msg.From()),
nil, 0)
var (
gasUsed uint64
elapsed uint64
refund uint64
)
b.ResetTimer()
for n := 0; n < b.N; n++ {
snapshot := statedb.Snapshot()
statedb.Prepare(rules, msg.From(), context.Coinbase, msg.To(), vm.ActivePrecompiles(rules), msg.AccessList())
b.StartTimer()
start := time.Now()
// Execute the message.
_, leftOverGas, err := evm.Call(sender, *msg.To(), msg.Data(), msg.Gas(), msg.Value())
if err != nil {
b.Error(err)
return
}
b.StopTimer()
elapsed += uint64(time.Since(start))
refund += statedb.GetRefund()
gasUsed += msg.Gas() - leftOverGas
statedb.RevertToSnapshot(snapshot)
}
if elapsed < 1 {
elapsed = 1
}
// Keep it as uint64, multiply 100 to get two digit float later
mgasps := (100 * 1000 * (gasUsed - refund)) / elapsed
b.ReportMetric(float64(mgasps)/100, "mgas/s")
})
}
}