neo-go/pkg/core/native_neo_test.go
Evgeniy Stratonikov e3625152c6 core: move NNS test out of core
Signed-off-by: Evgeniy Stratonikov <evgeniy@nspcc.ru>
2021-11-11 11:15:15 +03:00

478 lines
18 KiB
Go

package core
import (
"math"
"math/big"
"sort"
"testing"
"github.com/nspcc-dev/neo-go/internal/random"
"github.com/nspcc-dev/neo-go/internal/testchain"
"github.com/nspcc-dev/neo-go/pkg/config/netmode"
"github.com/nspcc-dev/neo-go/pkg/core/native"
"github.com/nspcc-dev/neo-go/pkg/core/transaction"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/nspcc-dev/neo-go/pkg/io"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/callflag"
"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/emit"
"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
"github.com/nspcc-dev/neo-go/pkg/wallet"
"github.com/stretchr/testify/require"
)
func setSigner(tx *transaction.Transaction, h util.Uint160) {
tx.Signers = []transaction.Signer{{
Account: h,
Scopes: transaction.Global,
}}
}
func checkTxHalt(t *testing.T, bc *Blockchain, h util.Uint256) {
aer, err := bc.GetAppExecResults(h, trigger.Application)
require.NoError(t, err)
require.Equal(t, 1, len(aer))
require.Equal(t, vm.HaltState, aer[0].VMState, aer[0].FaultException)
}
func TestNEO_Vote(t *testing.T) {
bc := newTestChain(t)
neo := bc.contracts.NEO
tx := transaction.New([]byte{byte(opcode.PUSH1)}, 0)
ic := bc.newInteropContext(trigger.Application, bc.dao, nil, tx)
ic.SpawnVM()
ic.Block = bc.newBlock(tx)
freq := testchain.ValidatorsCount + testchain.CommitteeSize()
advanceChain := func(t *testing.T) {
for i := 0; i < freq; i++ {
require.NoError(t, bc.AddBlock(bc.newBlock()))
ic.Block.Index++
}
}
standBySorted := bc.GetStandByValidators()
sort.Sort(standBySorted)
pubs, err := neo.ComputeNextBlockValidators(bc, ic.DAO)
require.NoError(t, err)
require.Equal(t, standBySorted, pubs)
sz := testchain.CommitteeSize()
accs := make([]*wallet.Account, sz)
candidates := make(keys.PublicKeys, sz)
txs := make([]*transaction.Transaction, 0, len(accs))
for i := 0; i < sz; i++ {
priv, err := keys.NewPrivateKey()
require.NoError(t, err)
candidates[i] = priv.PublicKey()
accs[i], err = wallet.NewAccount()
require.NoError(t, err)
if i > 0 {
require.NoError(t, neo.RegisterCandidateInternal(ic, candidates[i]))
}
to := accs[i].Contract.ScriptHash()
w := io.NewBufBinWriter()
emit.AppCall(w.BinWriter, bc.contracts.NEO.Hash, "transfer", callflag.All,
neoOwner.BytesBE(), to.BytesBE(),
big.NewInt(int64(sz-i)*1000000).Int64(), nil)
emit.Opcodes(w.BinWriter, opcode.ASSERT)
emit.AppCall(w.BinWriter, bc.contracts.GAS.Hash, "transfer", callflag.All,
neoOwner.BytesBE(), to.BytesBE(),
int64(1_000_000_000), nil)
emit.Opcodes(w.BinWriter, opcode.ASSERT)
require.NoError(t, w.Err)
tx := transaction.New(w.Bytes(), 1000_000_000)
tx.ValidUntilBlock = bc.BlockHeight() + 1
setSigner(tx, testchain.MultisigScriptHash())
require.NoError(t, testchain.SignTx(bc, tx))
txs = append(txs, tx)
}
require.NoError(t, bc.AddBlock(bc.newBlock(txs...)))
for _, tx := range txs {
checkTxHalt(t, bc, tx.Hash())
}
transferBlock := bc.BlockHeight()
for i := 1; i < sz; i++ {
priv := accs[i].PrivateKey()
h := priv.GetScriptHash()
setSigner(tx, h)
ic.VM.Load(priv.PublicKey().GetVerificationScript())
require.NoError(t, neo.VoteInternal(ic, h, candidates[i]))
}
// We still haven't voted enough validators in.
pubs, err = neo.ComputeNextBlockValidators(bc, ic.DAO)
require.NoError(t, err)
require.Equal(t, standBySorted, pubs)
advanceChain(t)
pubs = neo.GetNextBlockValidatorsInternal()
require.EqualValues(t, standBySorted, pubs)
// Register and give some value to the last validator.
require.NoError(t, neo.RegisterCandidateInternal(ic, candidates[0]))
priv := accs[0].PrivateKey()
h := priv.GetScriptHash()
setSigner(tx, h)
ic.VM.Load(priv.PublicKey().GetVerificationScript())
require.NoError(t, neo.VoteInternal(ic, h, candidates[0]))
_, err = ic.DAO.Persist()
require.NoError(t, err)
advanceChain(t)
pubs, err = neo.ComputeNextBlockValidators(bc, ic.DAO)
require.NoError(t, err)
sortedCandidates := candidates.Copy()[:testchain.Size()]
sort.Sort(sortedCandidates)
require.EqualValues(t, sortedCandidates, pubs)
pubs = neo.GetNextBlockValidatorsInternal()
require.EqualValues(t, sortedCandidates, pubs)
t.Run("check voter rewards", func(t *testing.T) {
gasBalance := make([]*big.Int, len(accs))
neoBalance := make([]*big.Int, len(accs))
txs := make([]*transaction.Transaction, 0, len(accs))
for i := range accs {
w := io.NewBufBinWriter()
h := accs[i].PrivateKey().GetScriptHash()
gasBalance[i] = bc.GetUtilityTokenBalance(h)
neoBalance[i], _ = bc.GetGoverningTokenBalance(h)
emit.AppCall(w.BinWriter, bc.contracts.NEO.Hash, "transfer", callflag.All,
h.BytesBE(), h.BytesBE(), int64(1), nil)
emit.Opcodes(w.BinWriter, opcode.ASSERT)
require.NoError(t, w.Err)
tx := transaction.New(w.Bytes(), 0)
tx.ValidUntilBlock = bc.BlockHeight() + 1
tx.NetworkFee = 2_000_000
tx.SystemFee = 11_000_000
setSigner(tx, h)
require.NoError(t, accs[i].SignTx(netmode.UnitTestNet, tx))
txs = append(txs, tx)
}
require.NoError(t, bc.AddBlock(bc.newBlock(txs...)))
for _, tx := range txs {
checkTxHalt(t, bc, tx.Hash())
}
// GAS increase consists of 2 parts: NEO holding + voting for committee nodes.
// Here we check that 2-nd part exists and is proportional to the amount of NEO given.
for i := range accs {
newGAS := bc.GetUtilityTokenBalance(accs[i].Contract.ScriptHash())
newGAS.Sub(newGAS, gasBalance[i])
gasForHold, err := bc.contracts.NEO.CalculateNEOHolderReward(bc.dao, neoBalance[i], transferBlock, bc.BlockHeight())
require.NoError(t, err)
newGAS.Sub(newGAS, gasForHold)
require.True(t, newGAS.Sign() > 0)
gasBalance[i] = newGAS
}
// First account voted later than the others.
require.Equal(t, -1, gasBalance[0].Cmp(gasBalance[1]))
for i := 2; i < testchain.ValidatorsCount; i++ {
require.Equal(t, 0, gasBalance[i].Cmp(gasBalance[1]))
}
require.Equal(t, 1, gasBalance[1].Cmp(gasBalance[testchain.ValidatorsCount]))
for i := testchain.ValidatorsCount; i < testchain.CommitteeSize(); i++ {
require.Equal(t, 0, gasBalance[i].Cmp(gasBalance[testchain.ValidatorsCount]))
}
})
require.NoError(t, neo.UnregisterCandidateInternal(ic, candidates[0]))
require.Error(t, neo.VoteInternal(ic, h, candidates[0]))
advanceChain(t)
pubs, err = neo.ComputeNextBlockValidators(bc, ic.DAO)
require.NoError(t, err)
for i := range pubs {
require.NotEqual(t, candidates[0], pubs[i])
}
}
// TestNEO_RecursiveDistribution is a test for https://github.com/nspcc-dev/neo-go/pull/2181.
func TestNEO_RecursiveGASMint(t *testing.T) {
bc := newTestChain(t)
initBasicChain(t, bc)
contractHash, err := bc.GetContractScriptHash(1) // deployed rpc/server/testdata/test_contract.go contract
require.NoError(t, err)
tx := transferTokenFromMultisigAccount(t, bc, contractHash, bc.contracts.GAS.Hash, 2_0000_0000)
checkTxHalt(t, bc, tx.Hash())
// Transfer 10 NEO to test contract, the contract should earn some GAS by owning this NEO.
tx = transferTokenFromMultisigAccount(t, bc, contractHash, bc.contracts.NEO.Hash, 10)
res, err := bc.GetAppExecResults(tx.Hash(), trigger.Application)
require.NoError(t, err)
require.Equal(t, vm.HaltState, res[0].VMState)
// Add blocks to be able to trigger NEO transfer from contract address to owner
// address inside onNEP17Payment (the contract starts NEO transfers from chain height = 100).
for i := bc.BlockHeight(); i < 100; i++ {
require.NoError(t, bc.AddBlock(bc.newBlock()))
}
// Transfer 1 more NEO to the contract. Transfer will trigger onNEP17Payment. OnNEP17Payment will
// trigger transfer of 11 NEO to the contract owner (based on the contract code). 11 NEO Transfer will
// trigger GAS distribution. GAS transfer will trigger OnNEP17Payment one more time. The recursion
// shouldn't occur here, because contract's balance LastUpdated height has already been updated in
// this block.
tx = transferTokenFromMultisigAccount(t, bc, contractHash, bc.contracts.NEO.Hash, 1)
res, err = bc.GetAppExecResults(tx.Hash(), trigger.Application)
require.NoError(t, err)
require.Equal(t, vm.HaltState, res[0].VMState, res[0].FaultException)
}
func TestNEO_SetGasPerBlock(t *testing.T) {
bc := newTestChain(t)
testGetSet(t, bc, bc.contracts.NEO.Hash, "GasPerBlock",
5*native.GASFactor, 0, 10*native.GASFactor)
}
func TestNEO_CalculateBonus(t *testing.T) {
bc := newTestChain(t)
neo := bc.contracts.NEO
tx := transaction.New([]byte{byte(opcode.PUSH1)}, 0)
ic := bc.newInteropContext(trigger.Application, bc.dao, nil, tx)
ic.SpawnVM()
ic.VM.LoadScript([]byte{byte(opcode.RET)})
t.Run("Invalid", func(t *testing.T) {
_, err := neo.CalculateNEOHolderReward(ic.DAO, new(big.Int).SetInt64(-1), 0, 1)
require.Error(t, err)
})
t.Run("Zero", func(t *testing.T) {
res, err := neo.CalculateNEOHolderReward(ic.DAO, big.NewInt(0), 0, 100)
require.NoError(t, err)
require.EqualValues(t, 0, res.Int64())
})
t.Run("ManyBlocks", func(t *testing.T) {
setSigner(tx, neo.GetCommitteeAddress())
err := neo.SetGASPerBlock(ic, 10, big.NewInt(1*native.GASFactor))
require.NoError(t, err)
res, err := neo.CalculateNEOHolderReward(ic.DAO, big.NewInt(100), 5, 15)
require.NoError(t, err)
require.EqualValues(t, (100*5*5/10)+(100*5*1/10), res.Int64())
})
}
func TestNEO_GetAccountState(t *testing.T) {
bc := newTestChain(t)
acc, err := wallet.NewAccount()
require.NoError(t, err)
h := acc.Contract.ScriptHash()
t.Run("empty", func(t *testing.T) {
res, err := invokeContractMethod(bc, 1_0000000, bc.contracts.NEO.Hash, "getAccountState", h)
require.NoError(t, err)
checkResult(t, res, stackitem.Null{})
})
const amount = 123
transferTokenFromMultisigAccountCheckOK(t, bc, h, bc.GoverningTokenHash(), int64(amount))
t.Run("with funds", func(t *testing.T) {
bs := stackitem.NewStruct([]stackitem.Item{
stackitem.Make(123),
stackitem.Make(bc.BlockHeight()),
stackitem.Null{},
})
res, err := invokeContractMethod(bc, 1_0000000, bc.contracts.NEO.Hash, "getAccountState", h)
require.NoError(t, err)
checkResult(t, res, bs)
})
}
func TestNEO_CommitteeBountyOnPersist(t *testing.T) {
bc := newTestChain(t)
hs := make([]util.Uint160, testchain.CommitteeSize())
for i := range hs {
hs[i] = testchain.PrivateKeyByID(i).GetScriptHash()
}
const singleBounty = 50000000
bs := map[int]int64{0: singleBounty}
checkBalances := func() {
for i := 0; i < testchain.CommitteeSize(); i++ {
require.EqualValues(t, bs[i], bc.GetUtilityTokenBalance(hs[i]).Int64(), i)
}
}
for i := 0; i < testchain.CommitteeSize()*2; i++ {
require.NoError(t, bc.AddBlock(bc.newBlock()))
bs[(i+1)%testchain.CommitteeSize()] += singleBounty
checkBalances()
}
}
func TestNEO_TransferOnPayment(t *testing.T) {
bc := newTestChain(t)
cs, _ := getTestContractState(bc)
require.NoError(t, bc.contracts.Management.PutContractState(bc.dao, cs))
const amount = 2
tx := transferTokenFromMultisigAccount(t, bc, cs.Hash, bc.contracts.NEO.Hash, amount)
aer, err := bc.GetAppExecResults(tx.Hash(), trigger.Application)
require.NoError(t, err)
require.Equal(t, vm.HaltState, aer[0].VMState)
require.Len(t, aer[0].Events, 3) // transfer + GAS claim for sender + onPayment
e := aer[0].Events[2]
require.Equal(t, "LastPayment", e.Name)
arr := e.Item.Value().([]stackitem.Item)
require.Equal(t, bc.contracts.NEO.Hash.BytesBE(), arr[0].Value())
require.Equal(t, neoOwner.BytesBE(), arr[1].Value())
require.Equal(t, big.NewInt(amount), arr[2].Value())
tx = transferTokenFromMultisigAccount(t, bc, cs.Hash, bc.contracts.NEO.Hash, amount)
aer, err = bc.GetAppExecResults(tx.Hash(), trigger.Application)
require.NoError(t, err)
require.Equal(t, vm.HaltState, aer[0].VMState)
// Now we must also have GAS claim for contract and corresponding `onPayment`.
require.Len(t, aer[0].Events, 5)
e = aer[0].Events[2] // onPayment for GAS claim
require.Equal(t, "LastPayment", e.Name)
arr = e.Item.Value().([]stackitem.Item)
require.Equal(t, stackitem.Null{}, arr[1])
require.Equal(t, bc.contracts.GAS.Hash.BytesBE(), arr[0].Value())
e = aer[0].Events[4] // onPayment for NEO transfer
require.Equal(t, "LastPayment", e.Name)
arr = e.Item.Value().([]stackitem.Item)
require.Equal(t, bc.contracts.NEO.Hash.BytesBE(), arr[0].Value())
require.Equal(t, neoOwner.BytesBE(), arr[1].Value())
require.Equal(t, big.NewInt(amount), arr[2].Value())
}
func TestRegisterPrice(t *testing.T) {
bc := newTestChain(t)
testGetSet(t, bc, bc.contracts.NEO.Hash, "RegisterPrice",
native.DefaultRegisterPrice, 1, math.MaxInt64)
}
func TestNEO_Roundtrip(t *testing.T) {
bc := newTestChain(t)
initialBalance, initialHeight := bc.GetGoverningTokenBalance(neoOwner)
require.NotNil(t, initialBalance)
t.Run("bad: amount > initial balance", func(t *testing.T) {
tx := transferTokenFromMultisigAccountWithAssert(t, bc, neoOwner, bc.contracts.NEO.Hash, initialBalance.Int64()+1, false)
aer, err := bc.GetAppExecResults(tx.Hash(), trigger.Application)
require.NoError(t, err)
require.Equal(t, vm.HaltState, aer[0].VMState, aer[0].FaultException) // transfer without assert => HALT state
checkResult(t, &aer[0], stackitem.NewBool(false))
require.Len(t, aer[0].Events, 0) // failed transfer => no events
// check balance and height were not changed
updatedBalance, updatedHeight := bc.GetGoverningTokenBalance(neoOwner)
require.Equal(t, initialBalance, updatedBalance)
require.Equal(t, initialHeight, updatedHeight)
})
t.Run("good: amount == initial balance", func(t *testing.T) {
tx := transferTokenFromMultisigAccountWithAssert(t, bc, neoOwner, bc.contracts.NEO.Hash, initialBalance.Int64(), false)
aer, err := bc.GetAppExecResults(tx.Hash(), trigger.Application)
require.NoError(t, err)
require.Equal(t, vm.HaltState, aer[0].VMState, aer[0].FaultException)
checkResult(t, &aer[0], stackitem.NewBool(true))
require.Len(t, aer[0].Events, 2) // roundtrip + GAS claim
// check balance wasn't changed and height was updated
updatedBalance, updatedHeight := bc.GetGoverningTokenBalance(neoOwner)
require.Equal(t, initialBalance, updatedBalance)
require.Equal(t, bc.BlockHeight(), updatedHeight)
})
}
func TestNEO_TransferZeroWithZeroBalance(t *testing.T) {
bc := newTestChain(t)
check := func(t *testing.T, roundtrip bool) {
acc := newAccountWithGAS(t, bc)
from := acc.PrivateKey().GetScriptHash()
to := from
if !roundtrip {
to = random.Uint160()
}
transferTx := newNEP17TransferWithAssert(bc.contracts.NEO.Hash, acc.PrivateKey().GetScriptHash(), to, 0, true)
transferTx.SystemFee = 100000000
transferTx.NetworkFee = 10000000
transferTx.ValidUntilBlock = bc.BlockHeight() + 1
addSigners(acc.PrivateKey().GetScriptHash(), transferTx)
require.NoError(t, acc.SignTx(bc.config.Magic, transferTx))
b := bc.newBlock(transferTx)
require.NoError(t, bc.AddBlock(b))
aer, err := bc.GetAppExecResults(transferTx.Hash(), trigger.Application)
require.NoError(t, err)
require.Equal(t, vm.HaltState, aer[0].VMState, aer[0].FaultException)
require.Len(t, aer[0].Events, 1) // roundtrip only, no GAS claim
require.Equal(t, stackitem.NewBigInteger(big.NewInt(0)), aer[0].Events[0].Item.Value().([]stackitem.Item)[2]) // amount is 0
// check balance wasn't changed and height wasn't updated
updatedBalance, updatedHeight := bc.GetGoverningTokenBalance(acc.PrivateKey().GetScriptHash())
require.Equal(t, big.NewInt(0), updatedBalance)
require.Equal(t, uint32(0), updatedHeight)
}
t.Run("roundtrip: amount == initial balance == 0", func(t *testing.T) {
check(t, true)
})
t.Run("non-roundtrip: amount == initial balance == 0", func(t *testing.T) {
check(t, false)
})
}
func TestNEO_TransferZeroWithNonZeroBalance(t *testing.T) {
bc := newTestChain(t)
check := func(t *testing.T, roundtrip bool) {
acc := newAccountWithGAS(t, bc)
transferTokenFromMultisigAccount(t, bc, acc.PrivateKey().GetScriptHash(), bc.contracts.NEO.Hash, 100)
initialBalance, _ := bc.GetGoverningTokenBalance(acc.PrivateKey().GetScriptHash())
require.True(t, initialBalance.Sign() > 0)
from := acc.PrivateKey().GetScriptHash()
to := from
if !roundtrip {
to = random.Uint160()
}
transferTx := newNEP17TransferWithAssert(bc.contracts.NEO.Hash, acc.PrivateKey().GetScriptHash(), to, 0, true)
transferTx.SystemFee = 100000000
transferTx.NetworkFee = 10000000
transferTx.ValidUntilBlock = bc.BlockHeight() + 1
addSigners(acc.PrivateKey().GetScriptHash(), transferTx)
require.NoError(t, acc.SignTx(bc.config.Magic, transferTx))
b := bc.newBlock(transferTx)
require.NoError(t, bc.AddBlock(b))
aer, err := bc.GetAppExecResults(transferTx.Hash(), trigger.Application)
require.NoError(t, err)
require.Equal(t, vm.HaltState, aer[0].VMState, aer[0].FaultException)
require.Len(t, aer[0].Events, 2) // roundtrip + GAS claim
require.Equal(t, stackitem.NewBigInteger(big.NewInt(0)), aer[0].Events[1].Item.Value().([]stackitem.Item)[2]) // amount is 0
// check balance wasn't changed and height was updated
updatedBalance, updatedHeight := bc.GetGoverningTokenBalance(acc.PrivateKey().GetScriptHash())
require.Equal(t, initialBalance, updatedBalance)
require.Equal(t, bc.BlockHeight(), updatedHeight)
}
t.Run("roundtrip", func(t *testing.T) {
check(t, true)
})
t.Run("non-roundtrip", func(t *testing.T) {
check(t, false)
})
}
func newAccountWithGAS(t *testing.T, bc *Blockchain) *wallet.Account {
acc, err := wallet.NewAccount()
require.NoError(t, err)
transferTokenFromMultisigAccount(t, bc, acc.PrivateKey().GetScriptHash(), bc.contracts.GAS.Hash, 1000_00000000)
return acc
}