neoneo-go/pkg/core/native_neo_test.go

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package core
import (
"math/big"
"sort"
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"testing"
"github.com/nspcc-dev/neo-go/pkg/config/netmode"
"github.com/nspcc-dev/neo-go/pkg/core/native"
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"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/internal/testchain"
"github.com/nspcc-dev/neo-go/pkg/io"
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"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/wallet"
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"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)
}
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func TestNEO_Vote(t *testing.T) {
bc := newTestChain(t)
defer bc.Close()
neo := bc.contracts.NEO
tx := transaction.New(netmode.UnitTestNet, []byte{byte(opcode.PUSH1)}, 0)
ic := bc.newInteropContext(trigger.Application, bc.dao, nil, tx)
ic.SpawnVM()
ic.Block = bc.newBlock(tx)
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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)
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require.NoError(t, err)
require.Equal(t, standBySorted, pubs)
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sz := testchain.CommitteeSize()
accs := make([]*wallet.Account, sz)
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candidates := make(keys.PublicKeys, sz)
txs := make([]*transaction.Transaction, 0, len(accs))
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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)
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if i > 0 {
require.NoError(t, neo.RegisterCandidateInternal(ic, candidates[i]))
}
to := accs[i].Contract.ScriptHash()
w := io.NewBufBinWriter()
emit.AppCallWithOperationAndArgs(w.BinWriter, bc.contracts.NEO.Hash, "transfer",
neoOwner.BytesBE(), to.BytesBE(),
big.NewInt(int64(sz-i)*1000000).Int64())
emit.Opcodes(w.BinWriter, opcode.ASSERT)
emit.AppCallWithOperationAndArgs(w.BinWriter, bc.contracts.GAS.Hash, "transfer",
neoOwner.BytesBE(), to.BytesBE(),
int64(1_000_000_000))
emit.Opcodes(w.BinWriter, opcode.ASSERT)
require.NoError(t, w.Err)
tx := transaction.New(netmode.UnitTestNet, w.Bytes(), 1000_000_000)
tx.ValidUntilBlock = bc.BlockHeight() + 1
setSigner(tx, testchain.MultisigScriptHash())
require.NoError(t, signTx(bc, tx))
txs = append(txs, tx)
}
require.NoError(t, bc.AddBlock(bc.newBlock(txs...)))
for _, tx := range txs {
checkTxHalt(t, bc, tx.Hash())
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}
transferBlock := bc.BlockHeight()
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for i := 1; i < sz; i++ {
priv := accs[i].PrivateKey()
h := priv.GetScriptHash()
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setSigner(tx, h)
ic.VM.Load(priv.PublicKey().GetVerificationScript())
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require.NoError(t, neo.VoteInternal(ic, h, candidates[i]))
}
// We still haven't voted enough validators in.
pubs, err = neo.ComputeNextBlockValidators(bc, ic.DAO)
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require.NoError(t, err)
require.Equal(t, standBySorted, pubs)
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advanceChain(t)
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pubs = neo.GetNextBlockValidatorsInternal()
require.EqualValues(t, standBySorted, pubs)
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// Register and give some value to the last validator.
require.NoError(t, neo.RegisterCandidateInternal(ic, candidates[0]))
priv := accs[0].PrivateKey()
h := priv.GetScriptHash()
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setSigner(tx, h)
ic.VM.Load(priv.PublicKey().GetVerificationScript())
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require.NoError(t, neo.VoteInternal(ic, h, candidates[0]))
ic.DAO.Persist()
advanceChain(t)
pubs, err = neo.ComputeNextBlockValidators(bc, ic.DAO)
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require.NoError(t, err)
sortedCandidates := candidates.Copy()[:testchain.Size()]
sort.Sort(sortedCandidates)
require.EqualValues(t, sortedCandidates, pubs)
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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.AppCallWithOperationAndArgs(w.BinWriter, bc.contracts.NEO.Hash, "transfer",
h.BytesBE(), h.BytesBE(), int64(1))
emit.Opcodes(w.BinWriter, opcode.ASSERT)
require.NoError(t, w.Err)
tx := transaction.New(netmode.UnitTestNet, w.Bytes(), 0)
tx.ValidUntilBlock = bc.BlockHeight() + 1
tx.NetworkFee = 2_000_000
tx.SystemFee = 10_000_000
setSigner(tx, h)
require.NoError(t, accs[i].SignTx(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])
}
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}
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func TestNEO_SetGasPerBlock(t *testing.T) {
bc := newTestChain(t)
defer bc.Close()
neo := bc.contracts.NEO
tx := transaction.New(netmode.UnitTestNet, []byte{}, 0)
ic := bc.newInteropContext(trigger.Application, bc.dao, nil, tx)
ic.SpawnVM()
ic.VM.LoadScript([]byte{byte(opcode.RET)})
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h := neo.GetCommitteeAddress()
t.Run("Default", func(t *testing.T) {
g := neo.GetGASPerBlock(ic.DAO, 0)
require.EqualValues(t, 5*native.GASFactor, g.Int64())
})
t.Run("Invalid", func(t *testing.T) {
t.Run("InvalidSignature", func(t *testing.T) {
setSigner(tx, util.Uint160{})
ok, err := neo.SetGASPerBlock(ic, 10, big.NewInt(native.GASFactor))
require.NoError(t, err)
require.False(t, ok)
})
t.Run("TooBigValue", func(t *testing.T) {
setSigner(tx, h)
_, err := neo.SetGASPerBlock(ic, 10, big.NewInt(10*native.GASFactor+1))
require.Error(t, err)
})
})
t.Run("Valid", func(t *testing.T) {
setSigner(tx, h)
ok, err := neo.SetGASPerBlock(ic, 10, big.NewInt(native.GASFactor*2))
require.NoError(t, err)
require.True(t, ok)
neo.OnPersistEnd(ic.DAO)
_, err = ic.DAO.Persist()
require.NoError(t, err)
t.Run("Again", func(t *testing.T) {
setSigner(tx, h)
ok, err := neo.SetGASPerBlock(ic, 10, big.NewInt(native.GASFactor))
require.NoError(t, err)
require.True(t, ok)
t.Run("NotPersisted", func(t *testing.T) {
g := neo.GetGASPerBlock(bc.dao, 10)
// Old value should be returned.
require.EqualValues(t, 2*native.GASFactor, g.Int64())
})
})
neo.OnPersistEnd(ic.DAO)
g := neo.GetGASPerBlock(ic.DAO, 9)
require.EqualValues(t, 5*native.GASFactor, g.Int64())
g = neo.GetGASPerBlock(ic.DAO, 10)
require.EqualValues(t, native.GASFactor, g.Int64())
})
}
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func TestNEO_CalculateBonus(t *testing.T) {
bc := newTestChain(t)
defer bc.Close()
neo := bc.contracts.NEO
tx := transaction.New(netmode.UnitTestNet, []byte{}, 0)
ic := bc.newInteropContext(trigger.Application, bc.dao, nil, tx)
ic.SpawnVM()
ic.VM.LoadScript([]byte{byte(opcode.RET)})
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t.Run("Invalid", func(t *testing.T) {
_, err := neo.CalculateNEOHolderReward(ic.DAO, new(big.Int).SetInt64(-1), 0, 1)
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require.Error(t, err)
})
t.Run("Zero", func(t *testing.T) {
res, err := neo.CalculateNEOHolderReward(ic.DAO, big.NewInt(0), 0, 100)
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require.NoError(t, err)
require.EqualValues(t, 0, res.Int64())
})
t.Run("ManyBlocks", func(t *testing.T) {
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setSigner(tx, neo.GetCommitteeAddress())
ok, err := neo.SetGASPerBlock(ic, 10, big.NewInt(1*native.GASFactor))
require.NoError(t, err)
require.True(t, ok)
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())
})
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}
func TestNEO_CommitteeBountyOnPersist(t *testing.T) {
bc := newTestChain(t)
defer bc.Close()
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()
}
}