neo-go/pkg/core/native_contract_test.go

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package core
import (
"errors"
"math/big"
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"testing"
"github.com/nspcc-dev/neo-go/internal/random"
"github.com/nspcc-dev/neo-go/pkg/core/dao"
"github.com/nspcc-dev/neo-go/pkg/core/fee"
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"github.com/nspcc-dev/neo-go/pkg/core/interop"
"github.com/nspcc-dev/neo-go/pkg/core/interop/contract"
"github.com/nspcc-dev/neo-go/pkg/core/state"
"github.com/nspcc-dev/neo-go/pkg/core/storage"
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"github.com/nspcc-dev/neo-go/pkg/smartcontract"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/callflag"
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"github.com/nspcc-dev/neo-go/pkg/smartcontract/manifest"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/trigger"
"github.com/nspcc-dev/neo-go/pkg/util"
"github.com/nspcc-dev/neo-go/pkg/vm"
"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
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"github.com/stretchr/testify/require"
)
type testNative struct {
meta interop.ContractMD
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blocks chan uint32
}
func (tn *testNative) Initialize(_ *interop.Context) error {
return nil
}
func (tn *testNative) Metadata() *interop.ContractMD {
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return &tn.meta
}
func (tn *testNative) OnPersist(ic *interop.Context) error {
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select {
case tn.blocks <- ic.Block.Index:
return nil
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default:
return errors.New("can't send index")
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}
}
func (tn *testNative) PostPersist(ic *interop.Context) error {
return nil
}
var _ interop.Contract = (*testNative)(nil)
// registerNative registers native contract in the blockchain.
func (bc *Blockchain) registerNative(c interop.Contract) {
bc.contracts.Contracts = append(bc.contracts.Contracts, c)
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bc.config.NativeUpdateHistories[c.Metadata().Name] = c.Metadata().UpdateHistory
}
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const (
testSumCPUFee = 1 << 15 // same as contract.Call
testSumStorageFee = 200
)
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func newTestNative() *testNative {
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cMD := interop.NewContractMD("Test.Native.Sum", 0)
cMD.UpdateHistory = []uint32{0}
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tn := &testNative{
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meta: *cMD,
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blocks: make(chan uint32, 1),
}
defer tn.meta.UpdateHash()
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desc := &manifest.Method{
Name: "sum",
Parameters: []manifest.Parameter{
manifest.NewParameter("addend1", smartcontract.IntegerType),
manifest.NewParameter("addend2", smartcontract.IntegerType),
},
ReturnType: smartcontract.IntegerType,
Safe: true,
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}
md := &interop.MethodAndPrice{
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Func: tn.sum,
CPUFee: testSumCPUFee,
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StorageFee: testSumStorageFee,
RequiredFlags: callflag.NoneFlag,
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}
tn.meta.AddMethod(md, desc)
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desc = &manifest.Method{
Name: "callOtherContractNoReturn",
Parameters: []manifest.Parameter{
manifest.NewParameter("contractHash", smartcontract.Hash160Type),
manifest.NewParameter("method", smartcontract.StringType),
manifest.NewParameter("arg", smartcontract.ArrayType),
},
ReturnType: smartcontract.VoidType,
Safe: true,
}
md = &interop.MethodAndPrice{
Func: tn.callOtherContractNoReturn,
CPUFee: testSumCPUFee,
RequiredFlags: callflag.NoneFlag}
tn.meta.AddMethod(md, desc)
desc = &manifest.Method{
Name: "callOtherContractWithReturn",
Parameters: []manifest.Parameter{
manifest.NewParameter("contractHash", smartcontract.Hash160Type),
manifest.NewParameter("method", smartcontract.StringType),
manifest.NewParameter("arg", smartcontract.ArrayType),
},
ReturnType: smartcontract.IntegerType,
}
md = &interop.MethodAndPrice{
Func: tn.callOtherContractWithReturn,
CPUFee: testSumCPUFee,
RequiredFlags: callflag.NoneFlag}
tn.meta.AddMethod(md, desc)
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return tn
}
func (tn *testNative) sum(_ *interop.Context, args []stackitem.Item) stackitem.Item {
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s1, err := args[0].TryInteger()
if err != nil {
panic(err)
}
s2, err := args[1].TryInteger()
if err != nil {
panic(err)
}
return stackitem.NewBigInteger(s1.Add(s1, s2))
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}
func toUint160(item stackitem.Item) util.Uint160 {
bs, err := item.TryBytes()
if err != nil {
panic(err)
}
u, err := util.Uint160DecodeBytesBE(bs)
if err != nil {
panic(err)
}
return u
}
func (tn *testNative) call(ic *interop.Context, args []stackitem.Item, hasReturn bool) {
cs, err := ic.GetContract(toUint160(args[0]))
if err != nil {
panic(err)
}
bs, err := args[1].TryBytes()
if err != nil {
panic(err)
}
err = contract.CallFromNative(ic, tn.meta.Hash, cs, string(bs), args[2].Value().([]stackitem.Item), hasReturn)
if err != nil {
panic(err)
}
}
func (tn *testNative) callOtherContractNoReturn(ic *interop.Context, args []stackitem.Item) stackitem.Item {
tn.call(ic, args, false)
return stackitem.Null{}
}
func (tn *testNative) callOtherContractWithReturn(ic *interop.Context, args []stackitem.Item) stackitem.Item {
tn.call(ic, args, true)
bi := ic.VM.Estack().Pop().BigInt()
return stackitem.Make(bi.Add(bi, big.NewInt(1)))
}
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func TestNativeContract_Invoke(t *testing.T) {
chain := newTestChain(t)
tn := newTestNative()
chain.registerNative(tn)
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err := chain.contracts.Management.PutContractState(chain.dao, &state.Contract{
ContractBase: state.ContractBase{
ID: 1,
NEF: tn.meta.NEF,
Hash: tn.meta.Hash,
Manifest: tn.meta.Manifest,
},
})
require.NoError(t, err)
// System.Contract.Call + "sum" itself + opcodes for pushing arguments.
price := int64(testSumCPUFee * chain.GetBaseExecFee() * 2)
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price += testSumStorageFee * chain.GetStoragePrice()
price += 3 * fee.Opcode(chain.GetBaseExecFee(), opcode.PUSHINT8)
price += 2 * fee.Opcode(chain.GetBaseExecFee(), opcode.SYSCALL, opcode.PUSHDATA1, opcode.PUSHINT8)
price += fee.Opcode(chain.GetBaseExecFee(), opcode.PACK)
res, err := invokeContractMethod(chain, price, tn.Metadata().Hash, "sum", int64(14), int64(28))
require.NoError(t, err)
checkResult(t, res, stackitem.Make(42))
_, err = chain.persist(false)
core: don't spawn goroutine for persist function It doesn't make any sense, in some situations it leads to a number of goroutines created that will Persist one after another (as we can't Persist concurrently). We can manage it better in a single thread. This doesn't change performance in any way, but somewhat reduces resource consumption. It was tested neo-bench (single node, 10 workers, LevelDB) on two machines and block dump processing (RC4 testnet up to 62800 with VerifyBlocks set to false) on i7-8565U. Reference (b9be892bf9f658652e2d1f074f366914dc62e830): Ryzen 9 5950X: RPS 27747.349 27407.726 27520.210 ≈ 27558 ± 0.63% TPS 26992.010 26993.468 27010.966 ≈ 26999 ± 0.04% CPU % 28.928 28.096 29.105 ≈ 28.7 ± 1.88% Mem MB 760.385 726.320 756.118 ≈ 748 ± 2.48% Core i7-8565U: RPS 7783.229 7628.409 7542.340 ≈ 7651 ± 1.60% TPS 7708.436 7607.397 7489.459 ≈ 7602 ± 1.44% CPU % 74.899 71.020 72.697 ≈ 72.9 ± 2.67% Mem MB 438.047 436.967 416.350 ≈ 430 ± 2.84% DB restore: real 0m20.838s 0m21.895s 0m21.794s ≈ 21.51 ± 2.71% user 0m39.091s 0m40.565s 0m41.493s ≈ 40.38 ± 3.00% sys 0m3.184s 0m2.923s 0m3.062s ≈ 3.06 ± 4.27% Patched: Ryzen 9 5950X: RPS 27636.957 27246.911 27462.036 ≈ 27449 ± 0.71% ↓ 0.40% TPS 27003.672 26993.468 27011.696 ≈ 27003 ± 0.03% ↑ 0.01% CPU % 28.562 28.475 28.012 ≈ 28.3 ± 1.04% ↓ 1.39% Mem MB 627.007 648.110 794.895 ≈ 690 ± 13.25% ↓ 7.75% Core i7-8565U: RPS 7497.210 7527.797 7897.532 ≈ 7641 ± 2.92% ↓ 0.13% TPS 7461.128 7482.678 7841.723 ≈ 7595 ± 2.81% ↓ 0.09% CPU % 71.559 73.423 69.005 ≈ 71.3 ± 3.11% ↓ 2.19% Mem MB 393.090 395.899 482.264 ≈ 424 ± 11.96% ↓ 1.40% DB restore: real 0m20.773s 0m21.583s 0m20.522s ≈ 20.96 ± 2.65% ↓ 2.56% user 0m39.322s 0m42.268s 0m38.626s ≈ 40.07 ± 4.82% ↓ 0.77% sys 0m3.006s 0m3.597s 0m3.042s ≈ 3.22 ± 10.31% ↑ 5.23%
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require.NoError(t, err)
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select {
case index := <-tn.blocks:
require.Equal(t, chain.blockHeight, index)
default:
require.Fail(t, "onPersist wasn't called")
}
// Enough for Call and other opcodes, but not enough for "sum" call.
res, err = invokeContractMethod(chain, price-1, tn.Metadata().Hash, "sum", int64(14), int64(28))
require.NoError(t, err)
checkFAULTState(t, res)
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}
func TestNativeContract_InvokeInternal(t *testing.T) {
chain := newTestChain(t)
tn := newTestNative()
chain.registerNative(tn)
err := chain.contracts.Management.PutContractState(chain.dao, &state.Contract{
ContractBase: state.ContractBase{
ID: 1,
NEF: tn.meta.NEF,
Manifest: tn.meta.Manifest,
},
})
require.NoError(t, err)
d := dao.NewSimple(storage.NewMemoryStore(), chain.config.StateRootInHeader, chain.config.P2PSigExtensions)
ic := chain.newInteropContext(trigger.Application, d, nil, nil)
sumOffset := 0
for _, md := range tn.Metadata().Methods {
if md.MD.Name == "sum" {
sumOffset = md.MD.Offset
break
}
}
t.Run("fail, bad current script hash", func(t *testing.T) {
v := ic.SpawnVM()
v.LoadScriptWithHash(tn.Metadata().NEF.Script, util.Uint160{1, 2, 3}, callflag.All)
v.Estack().PushVal(14)
v.Estack().PushVal(28)
v.Context().Jump(sumOffset)
// it's prohibited to call natives directly
require.Error(t, v.Run())
})
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t.Run("fail, bad NativeUpdateHistory height", func(t *testing.T) {
tn.Metadata().UpdateHistory = []uint32{chain.blockHeight + 1}
v := ic.SpawnVM()
v.LoadScriptWithHash(tn.Metadata().NEF.Script, tn.Metadata().Hash, callflag.All)
v.Estack().PushVal(14)
v.Estack().PushVal(28)
v.Context().Jump(sumOffset)
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// it's prohibited to call natives before NativeUpdateHistory[0] height
require.Error(t, v.Run())
// set the value back to 0
tn.Metadata().UpdateHistory = []uint32{0}
})
t.Run("success", func(t *testing.T) {
v := ic.SpawnVM()
v.LoadScriptWithHash(tn.Metadata().NEF.Script, tn.Metadata().Hash, callflag.All)
v.Estack().PushVal(14)
v.Estack().PushVal(28)
v.Context().Jump(sumOffset)
require.NoError(t, v.Run())
value := v.Estack().Pop().BigInt()
require.Equal(t, int64(42), value.Int64())
})
}
func TestNativeContract_InvokeOtherContract(t *testing.T) {
chain := newTestChain(t)
tn := newTestNative()
chain.registerNative(tn)
err := chain.contracts.Management.PutContractState(chain.dao, &state.Contract{
ContractBase: state.ContractBase{
ID: 1,
Hash: tn.meta.Hash,
NEF: tn.meta.NEF,
Manifest: tn.meta.Manifest,
},
})
require.NoError(t, err)
var drainTN = func(t *testing.T) {
select {
case <-tn.blocks:
default:
require.Fail(t, "testNative didn't send us block")
}
}
cs, _ := getTestContractState(t, 4, 5, random.Uint160()) // sender and IDs are not important for the test
require.NoError(t, chain.contracts.Management.PutContractState(chain.dao, cs))
baseFee := chain.GetBaseExecFee()
t.Run("non-native, no return", func(t *testing.T) {
res, err := invokeContractMethod(chain, testSumCPUFee*baseFee*4+10000, tn.Metadata().Hash, "callOtherContractNoReturn", cs.Hash, "justReturn", []interface{}{})
require.NoError(t, err)
drainTN(t)
require.Equal(t, vm.HaltState, res.VMState, res.FaultException)
checkResult(t, res, stackitem.Null{}) // simple call is done with EnsureNotEmpty
})
t.Run("non-native, with return", func(t *testing.T) {
res, err := invokeContractMethod(chain, testSumCPUFee*baseFee*4+10000, tn.Metadata().Hash,
"callOtherContractWithReturn", cs.Hash, "ret7", []interface{}{})
require.NoError(t, err)
drainTN(t)
checkResult(t, res, stackitem.Make(8))
})
}