plugeth/eth/tracers/tracer_test.go

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// Copyright 2017 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// 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,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// 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/>.
package tracers
import (
"bytes"
"encoding/json"
"errors"
"math/big"
"testing"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/params"
)
type account struct{}
func (account) SubBalance(amount *big.Int) {}
func (account) AddBalance(amount *big.Int) {}
func (account) SetAddress(common.Address) {}
func (account) Value() *big.Int { return nil }
func (account) SetBalance(*big.Int) {}
func (account) SetNonce(uint64) {}
func (account) Balance() *big.Int { return nil }
func (account) Address() common.Address { return common.Address{} }
func (account) ReturnGas(*big.Int) {}
func (account) SetCode(common.Hash, []byte) {}
func (account) ForEachStorage(cb func(key, value common.Hash) bool) {}
type dummyStatedb struct {
state.StateDB
}
func (*dummyStatedb) GetRefund() uint64 { return 1337 }
func runTrace(tracer *Tracer) (json.RawMessage, error) {
env := vm.NewEVM(vm.Context{BlockNumber: big.NewInt(1)}, &dummyStatedb{}, params.TestChainConfig, vm.Config{Debug: true, Tracer: tracer})
contract := vm.NewContract(account{}, account{}, big.NewInt(0), 10000)
contract.Code = []byte{byte(vm.PUSH1), 0x1, byte(vm.PUSH1), 0x1, 0x0}
_, err := env.Interpreter().Run(contract, []byte{}, false)
if err != nil {
return nil, err
}
return tracer.GetResult()
}
// TestRegressionPanicSlice tests that we don't panic on bad arguments to memory access
func TestRegressionPanicSlice(t *testing.T) {
tracer, err := New("{depths: [], step: function(log) { this.depths.push(log.memory.slice(-1,-2)); }, fault: function() {}, result: function() { return this.depths; }}")
if err != nil {
t.Fatal(err)
}
if _, err = runTrace(tracer); err != nil {
t.Fatal(err)
}
}
// TestRegressionPanicSlice tests that we don't panic on bad arguments to stack peeks
func TestRegressionPanicPeek(t *testing.T) {
tracer, err := New("{depths: [], step: function(log) { this.depths.push(log.stack.peek(-1)); }, fault: function() {}, result: function() { return this.depths; }}")
if err != nil {
t.Fatal(err)
}
if _, err = runTrace(tracer); err != nil {
t.Fatal(err)
}
}
// TestRegressionPanicSlice tests that we don't panic on bad arguments to memory getUint
func TestRegressionPanicGetUint(t *testing.T) {
tracer, err := New("{ depths: [], step: function(log, db) { this.depths.push(log.memory.getUint(-64));}, fault: function() {}, result: function() { return this.depths; }}")
if err != nil {
t.Fatal(err)
}
if _, err = runTrace(tracer); err != nil {
t.Fatal(err)
}
}
func TestTracing(t *testing.T) {
tracer, err := New("{count: 0, step: function() { this.count += 1; }, fault: function() {}, result: function() { return this.count; }}")
if err != nil {
t.Fatal(err)
}
ret, err := runTrace(tracer)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(ret, []byte("3")) {
t.Errorf("Expected return value to be 3, got %s", string(ret))
}
}
func TestStack(t *testing.T) {
tracer, err := New("{depths: [], step: function(log) { this.depths.push(log.stack.length()); }, fault: function() {}, result: function() { return this.depths; }}")
if err != nil {
t.Fatal(err)
}
ret, err := runTrace(tracer)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(ret, []byte("[0,1,2]")) {
t.Errorf("Expected return value to be [0,1,2], got %s", string(ret))
}
}
func TestOpcodes(t *testing.T) {
tracer, err := New("{opcodes: [], step: function(log) { this.opcodes.push(log.op.toString()); }, fault: function() {}, result: function() { return this.opcodes; }}")
if err != nil {
t.Fatal(err)
}
ret, err := runTrace(tracer)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(ret, []byte("[\"PUSH1\",\"PUSH1\",\"STOP\"]")) {
t.Errorf("Expected return value to be [\"PUSH1\",\"PUSH1\",\"STOP\"], got %s", string(ret))
}
}
func TestHalt(t *testing.T) {
t.Skip("duktape doesn't support abortion")
timeout := errors.New("stahp")
tracer, err := New("{step: function() { while(1); }, result: function() { return null; }}")
if err != nil {
t.Fatal(err)
}
go func() {
time.Sleep(1 * time.Second)
tracer.Stop(timeout)
}()
if _, err = runTrace(tracer); err.Error() != "stahp in server-side tracer function 'step'" {
t.Errorf("Expected timeout error, got %v", err)
}
}
func TestHaltBetweenSteps(t *testing.T) {
tracer, err := New("{step: function() {}, fault: function() {}, result: function() { return null; }}")
if err != nil {
t.Fatal(err)
}
env := vm.NewEVM(vm.Context{BlockNumber: big.NewInt(1)}, &dummyStatedb{}, params.TestChainConfig, vm.Config{Debug: true, Tracer: tracer})
contract := vm.NewContract(&account{}, &account{}, big.NewInt(0), 0)
core/vm: less allocations for various call variants (#21222) * core/vm/runtime/tests: add more benchmarks * core/vm: initial work on improving alloc count for calls to precompiles name old time/op new time/op delta SimpleLoop/identity-precompile-10M-6 117ms ±75% 43ms ± 1% -63.09% (p=0.008 n=5+5) SimpleLoop/loop-10M-6 79.6ms ± 4% 70.5ms ± 1% -11.42% (p=0.008 n=5+5) name old alloc/op new alloc/op delta SimpleLoop/identity-precompile-10M-6 24.4MB ± 0% 4.9MB ± 0% -79.94% (p=0.008 n=5+5) SimpleLoop/loop-10M-6 13.2kB ± 0% 13.2kB ± 0% ~ (p=0.357 n=5+5) name old allocs/op new allocs/op delta SimpleLoop/identity-precompile-10M-6 382k ± 0% 153k ± 0% -59.99% (p=0.000 n=5+4) SimpleLoop/loop-10M-6 40.0 ± 0% 40.0 ± 0% ~ (all equal) * core/vm: don't allocate big.int for touch name old time/op new time/op delta SimpleLoop/identity-precompile-10M-6 43.3ms ± 1% 42.4ms ± 7% ~ (p=0.151 n=5+5) SimpleLoop/loop-10M-6 70.5ms ± 1% 76.7ms ± 1% +8.67% (p=0.008 n=5+5) name old alloc/op new alloc/op delta SimpleLoop/identity-precompile-10M-6 4.90MB ± 0% 2.46MB ± 0% -49.83% (p=0.008 n=5+5) SimpleLoop/loop-10M-6 13.2kB ± 0% 13.2kB ± 1% ~ (p=0.571 n=5+5) name old allocs/op new allocs/op delta SimpleLoop/identity-precompile-10M-6 153k ± 0% 76k ± 0% -49.98% (p=0.029 n=4+4) SimpleLoop/loop-10M-6 40.0 ± 0% 40.0 ± 0% ~ (all equal) * core/vm: reduce allocs in staticcall name old time/op new time/op delta SimpleLoop/identity-precompile-10M-6 42.4ms ± 7% 37.5ms ± 6% -11.68% (p=0.008 n=5+5) SimpleLoop/loop-10M-6 76.7ms ± 1% 69.1ms ± 1% -9.82% (p=0.008 n=5+5) name old alloc/op new alloc/op delta SimpleLoop/identity-precompile-10M-6 2.46MB ± 0% 0.02MB ± 0% -99.35% (p=0.008 n=5+5) SimpleLoop/loop-10M-6 13.2kB ± 1% 13.2kB ± 0% ~ (p=0.143 n=5+5) name old allocs/op new allocs/op delta SimpleLoop/identity-precompile-10M-6 76.4k ± 0% 0.1k ± 0% ~ (p=0.079 n=4+5) SimpleLoop/loop-10M-6 40.0 ± 0% 40.0 ± 0% ~ (all equal) * trie: better use of hasher keccakState * core/state/statedb: reduce allocations in getDeletedStateObject * core/vm: reduce allocations in all call derivates * core/vm: reduce allocations in call variants - Make returnstack `uint32` - Use a `sync.Pool` of `stack`s * core/vm: fix tests * core/vm: goimports * core/vm: tracer fix + staticcall gas fix * core/vm: add back snapshot to staticcall * core/vm: review concerns + make returnstack pooled + enable returndata in traces * core/vm: fix some test tracer method signatures * core/vm: run gencodec, minor comment polish Co-authored-by: Péter Szilágyi <peterke@gmail.com>
2020-07-16 12:06:19 +00:00
tracer.CaptureState(env, 0, 0, 0, 0, nil, nil, nil, nil, contract, 0, nil)
timeout := errors.New("stahp")
tracer.Stop(timeout)
core/vm: less allocations for various call variants (#21222) * core/vm/runtime/tests: add more benchmarks * core/vm: initial work on improving alloc count for calls to precompiles name old time/op new time/op delta SimpleLoop/identity-precompile-10M-6 117ms ±75% 43ms ± 1% -63.09% (p=0.008 n=5+5) SimpleLoop/loop-10M-6 79.6ms ± 4% 70.5ms ± 1% -11.42% (p=0.008 n=5+5) name old alloc/op new alloc/op delta SimpleLoop/identity-precompile-10M-6 24.4MB ± 0% 4.9MB ± 0% -79.94% (p=0.008 n=5+5) SimpleLoop/loop-10M-6 13.2kB ± 0% 13.2kB ± 0% ~ (p=0.357 n=5+5) name old allocs/op new allocs/op delta SimpleLoop/identity-precompile-10M-6 382k ± 0% 153k ± 0% -59.99% (p=0.000 n=5+4) SimpleLoop/loop-10M-6 40.0 ± 0% 40.0 ± 0% ~ (all equal) * core/vm: don't allocate big.int for touch name old time/op new time/op delta SimpleLoop/identity-precompile-10M-6 43.3ms ± 1% 42.4ms ± 7% ~ (p=0.151 n=5+5) SimpleLoop/loop-10M-6 70.5ms ± 1% 76.7ms ± 1% +8.67% (p=0.008 n=5+5) name old alloc/op new alloc/op delta SimpleLoop/identity-precompile-10M-6 4.90MB ± 0% 2.46MB ± 0% -49.83% (p=0.008 n=5+5) SimpleLoop/loop-10M-6 13.2kB ± 0% 13.2kB ± 1% ~ (p=0.571 n=5+5) name old allocs/op new allocs/op delta SimpleLoop/identity-precompile-10M-6 153k ± 0% 76k ± 0% -49.98% (p=0.029 n=4+4) SimpleLoop/loop-10M-6 40.0 ± 0% 40.0 ± 0% ~ (all equal) * core/vm: reduce allocs in staticcall name old time/op new time/op delta SimpleLoop/identity-precompile-10M-6 42.4ms ± 7% 37.5ms ± 6% -11.68% (p=0.008 n=5+5) SimpleLoop/loop-10M-6 76.7ms ± 1% 69.1ms ± 1% -9.82% (p=0.008 n=5+5) name old alloc/op new alloc/op delta SimpleLoop/identity-precompile-10M-6 2.46MB ± 0% 0.02MB ± 0% -99.35% (p=0.008 n=5+5) SimpleLoop/loop-10M-6 13.2kB ± 1% 13.2kB ± 0% ~ (p=0.143 n=5+5) name old allocs/op new allocs/op delta SimpleLoop/identity-precompile-10M-6 76.4k ± 0% 0.1k ± 0% ~ (p=0.079 n=4+5) SimpleLoop/loop-10M-6 40.0 ± 0% 40.0 ± 0% ~ (all equal) * trie: better use of hasher keccakState * core/state/statedb: reduce allocations in getDeletedStateObject * core/vm: reduce allocations in all call derivates * core/vm: reduce allocations in call variants - Make returnstack `uint32` - Use a `sync.Pool` of `stack`s * core/vm: fix tests * core/vm: goimports * core/vm: tracer fix + staticcall gas fix * core/vm: add back snapshot to staticcall * core/vm: review concerns + make returnstack pooled + enable returndata in traces * core/vm: fix some test tracer method signatures * core/vm: run gencodec, minor comment polish Co-authored-by: Péter Szilágyi <peterke@gmail.com>
2020-07-16 12:06:19 +00:00
tracer.CaptureState(env, 0, 0, 0, 0, nil, nil, nil, nil, contract, 0, nil)
if _, err := tracer.GetResult(); err.Error() != timeout.Error() {
t.Errorf("Expected timeout error, got %v", err)
}
}