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