304 lines
9.6 KiB
Go
304 lines
9.6 KiB
Go
package core
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import (
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"math/big"
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"sort"
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"testing"
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"github.com/nspcc-dev/neo-go/pkg/config/netmode"
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"github.com/nspcc-dev/neo-go/pkg/core/native"
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"github.com/nspcc-dev/neo-go/pkg/core/transaction"
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"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
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"github.com/nspcc-dev/neo-go/pkg/internal/testchain"
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"github.com/nspcc-dev/neo-go/pkg/io"
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"github.com/nspcc-dev/neo-go/pkg/smartcontract/trigger"
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"github.com/nspcc-dev/neo-go/pkg/util"
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"github.com/nspcc-dev/neo-go/pkg/vm"
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"github.com/nspcc-dev/neo-go/pkg/vm/emit"
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"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
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"github.com/nspcc-dev/neo-go/pkg/wallet"
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"github.com/stretchr/testify/require"
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)
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func setSigner(tx *transaction.Transaction, h util.Uint160) {
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tx.Signers = []transaction.Signer{{
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Account: h,
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Scopes: transaction.Global,
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}}
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}
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func checkTxHalt(t *testing.T, bc *Blockchain, h util.Uint256) {
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aer, err := bc.GetAppExecResult(h)
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require.NoError(t, err)
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require.Equal(t, vm.HaltState, aer.VMState, aer.FaultException)
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}
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func TestNEO_Vote(t *testing.T) {
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bc := newTestChain(t)
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defer bc.Close()
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neo := bc.contracts.NEO
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tx := transaction.New(netmode.UnitTestNet, []byte{byte(opcode.PUSH1)}, 0)
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ic := bc.newInteropContext(trigger.Application, bc.dao, nil, tx)
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ic.SpawnVM()
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ic.Block = bc.newBlock(tx)
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freq := testchain.ValidatorsCount + testchain.CommitteeSize()
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advanceChain := func(t *testing.T) {
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for i := 0; i < freq; i++ {
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require.NoError(t, bc.AddBlock(bc.newBlock()))
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ic.Block.Index++
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}
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}
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standBySorted := bc.GetStandByValidators()
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sort.Sort(standBySorted)
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pubs, err := neo.ComputeNextBlockValidators(bc, ic.DAO)
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require.NoError(t, err)
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require.Equal(t, standBySorted, pubs)
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sz := testchain.CommitteeSize()
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accs := make([]*wallet.Account, sz)
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candidates := make(keys.PublicKeys, sz)
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txs := make([]*transaction.Transaction, 0, len(accs))
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for i := 0; i < sz; i++ {
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priv, err := keys.NewPrivateKey()
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require.NoError(t, err)
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candidates[i] = priv.PublicKey()
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accs[i], err = wallet.NewAccount()
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require.NoError(t, err)
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if i > 0 {
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require.NoError(t, neo.RegisterCandidateInternal(ic, candidates[i]))
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}
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to := accs[i].Contract.ScriptHash()
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w := io.NewBufBinWriter()
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emit.AppCallWithOperationAndArgs(w.BinWriter, bc.contracts.NEO.Hash, "transfer",
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neoOwner.BytesBE(), to.BytesBE(),
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big.NewInt(int64(sz-i)*1000000).Int64())
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emit.Opcodes(w.BinWriter, opcode.ASSERT)
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emit.AppCallWithOperationAndArgs(w.BinWriter, bc.contracts.GAS.Hash, "transfer",
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neoOwner.BytesBE(), to.BytesBE(),
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int64(1_000_000_000))
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emit.Opcodes(w.BinWriter, opcode.ASSERT)
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require.NoError(t, w.Err)
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tx := transaction.New(netmode.UnitTestNet, w.Bytes(), 1000_000_000)
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tx.ValidUntilBlock = bc.BlockHeight() + 1
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setSigner(tx, testchain.MultisigScriptHash())
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require.NoError(t, signTx(bc, tx))
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txs = append(txs, tx)
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}
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require.NoError(t, bc.AddBlock(bc.newBlock(txs...)))
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for _, tx := range txs {
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checkTxHalt(t, bc, tx.Hash())
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}
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transferBlock := bc.BlockHeight()
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for i := 1; i < sz; i++ {
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priv := accs[i].PrivateKey()
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h := priv.GetScriptHash()
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setSigner(tx, h)
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ic.VM.Load(priv.PublicKey().GetVerificationScript())
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require.NoError(t, neo.VoteInternal(ic, h, candidates[i]))
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}
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// We still haven't voted enough validators in.
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pubs, err = neo.ComputeNextBlockValidators(bc, ic.DAO)
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require.NoError(t, err)
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require.Equal(t, standBySorted, pubs)
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advanceChain(t)
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pubs = neo.GetNextBlockValidatorsInternal()
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require.EqualValues(t, standBySorted, pubs)
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// Register and give some value to the last validator.
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require.NoError(t, neo.RegisterCandidateInternal(ic, candidates[0]))
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priv := accs[0].PrivateKey()
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h := priv.GetScriptHash()
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setSigner(tx, h)
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ic.VM.Load(priv.PublicKey().GetVerificationScript())
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require.NoError(t, neo.VoteInternal(ic, h, candidates[0]))
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ic.DAO.Persist()
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advanceChain(t)
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pubs, err = neo.ComputeNextBlockValidators(bc, ic.DAO)
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require.NoError(t, err)
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sortedCandidates := candidates.Copy()[:testchain.Size()]
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sort.Sort(sortedCandidates)
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require.EqualValues(t, sortedCandidates, pubs)
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pubs = neo.GetNextBlockValidatorsInternal()
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require.EqualValues(t, sortedCandidates, pubs)
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t.Run("check voter rewards", func(t *testing.T) {
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gasBalance := make([]*big.Int, len(accs))
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neoBalance := make([]*big.Int, len(accs))
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txs := make([]*transaction.Transaction, 0, len(accs))
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for i := range accs {
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w := io.NewBufBinWriter()
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h := accs[i].PrivateKey().GetScriptHash()
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gasBalance[i] = bc.GetUtilityTokenBalance(h)
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neoBalance[i], _ = bc.GetGoverningTokenBalance(h)
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emit.AppCallWithOperationAndArgs(w.BinWriter, bc.contracts.NEO.Hash, "transfer",
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h.BytesBE(), h.BytesBE(), int64(1))
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emit.Opcodes(w.BinWriter, opcode.ASSERT)
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require.NoError(t, w.Err)
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tx := transaction.New(netmode.UnitTestNet, w.Bytes(), 0)
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tx.ValidUntilBlock = bc.BlockHeight() + 1
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tx.NetworkFee = 2_000_000
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tx.SystemFee = 10_000_000
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setSigner(tx, h)
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require.NoError(t, accs[i].SignTx(tx))
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txs = append(txs, tx)
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}
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require.NoError(t, bc.AddBlock(bc.newBlock(txs...)))
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for _, tx := range txs {
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checkTxHalt(t, bc, tx.Hash())
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}
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// GAS increase consists of 2 parts: NEO holding + voting for committee nodes.
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// Here we check that 2-nd part exists and is proportional to the amount of NEO given.
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for i := range accs {
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newGAS := bc.GetUtilityTokenBalance(accs[i].Contract.ScriptHash())
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newGAS.Sub(newGAS, gasBalance[i])
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gasForHold, err := bc.contracts.NEO.CalculateNEOHolderReward(bc.dao, neoBalance[i], transferBlock, bc.BlockHeight())
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require.NoError(t, err)
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newGAS.Sub(newGAS, gasForHold)
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require.True(t, newGAS.Sign() > 0)
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gasBalance[i] = newGAS
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}
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// First account voted later than the others.
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require.Equal(t, -1, gasBalance[0].Cmp(gasBalance[1]))
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for i := 2; i < testchain.ValidatorsCount; i++ {
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require.Equal(t, 0, gasBalance[i].Cmp(gasBalance[1]))
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}
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require.Equal(t, 1, gasBalance[1].Cmp(gasBalance[testchain.ValidatorsCount]))
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for i := testchain.ValidatorsCount; i < testchain.CommitteeSize(); i++ {
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require.Equal(t, 0, gasBalance[i].Cmp(gasBalance[testchain.ValidatorsCount]))
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}
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})
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require.NoError(t, neo.UnregisterCandidateInternal(ic, candidates[0]))
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require.Error(t, neo.VoteInternal(ic, h, candidates[0]))
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advanceChain(t)
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pubs, err = neo.ComputeNextBlockValidators(bc, ic.DAO)
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require.NoError(t, err)
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for i := range pubs {
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require.NotEqual(t, candidates[0], pubs[i])
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}
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}
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func TestNEO_SetGasPerBlock(t *testing.T) {
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bc := newTestChain(t)
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defer bc.Close()
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neo := bc.contracts.NEO
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tx := transaction.New(netmode.UnitTestNet, []byte{}, 0)
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ic := bc.newInteropContext(trigger.Application, bc.dao, nil, tx)
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ic.SpawnVM()
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ic.VM.LoadScript([]byte{byte(opcode.RET)})
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h := neo.GetCommitteeAddress()
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t.Run("Default", func(t *testing.T) {
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g := neo.GetGASPerBlock(ic.DAO, 0)
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require.EqualValues(t, 5*native.GASFactor, g.Int64())
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})
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t.Run("Invalid", func(t *testing.T) {
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t.Run("InvalidSignature", func(t *testing.T) {
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setSigner(tx, util.Uint160{})
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ok, err := neo.SetGASPerBlock(ic, 10, big.NewInt(native.GASFactor))
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require.NoError(t, err)
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require.False(t, ok)
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})
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t.Run("TooBigValue", func(t *testing.T) {
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setSigner(tx, h)
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_, err := neo.SetGASPerBlock(ic, 10, big.NewInt(10*native.GASFactor+1))
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require.Error(t, err)
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})
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})
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t.Run("Valid", func(t *testing.T) {
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setSigner(tx, h)
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ok, err := neo.SetGASPerBlock(ic, 10, big.NewInt(native.GASFactor*2))
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require.NoError(t, err)
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require.True(t, ok)
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neo.OnPersistEnd(ic.DAO)
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_, err = ic.DAO.Persist()
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require.NoError(t, err)
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t.Run("Again", func(t *testing.T) {
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setSigner(tx, h)
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ok, err := neo.SetGASPerBlock(ic, 10, big.NewInt(native.GASFactor))
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require.NoError(t, err)
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require.True(t, ok)
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t.Run("NotPersisted", func(t *testing.T) {
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g := neo.GetGASPerBlock(bc.dao, 10)
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// Old value should be returned.
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require.EqualValues(t, 2*native.GASFactor, g.Int64())
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})
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})
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neo.OnPersistEnd(ic.DAO)
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g := neo.GetGASPerBlock(ic.DAO, 9)
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require.EqualValues(t, 5*native.GASFactor, g.Int64())
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g = neo.GetGASPerBlock(ic.DAO, 10)
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require.EqualValues(t, native.GASFactor, g.Int64())
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})
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}
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func TestNEO_CalculateBonus(t *testing.T) {
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bc := newTestChain(t)
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defer bc.Close()
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neo := bc.contracts.NEO
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tx := transaction.New(netmode.UnitTestNet, []byte{}, 0)
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ic := bc.newInteropContext(trigger.Application, bc.dao, nil, tx)
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ic.SpawnVM()
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ic.VM.LoadScript([]byte{byte(opcode.RET)})
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t.Run("Invalid", func(t *testing.T) {
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_, err := neo.CalculateNEOHolderReward(ic.DAO, new(big.Int).SetInt64(-1), 0, 1)
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require.Error(t, err)
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})
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t.Run("Zero", func(t *testing.T) {
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res, err := neo.CalculateNEOHolderReward(ic.DAO, big.NewInt(0), 0, 100)
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require.NoError(t, err)
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require.EqualValues(t, 0, res.Int64())
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})
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t.Run("ManyBlocks", func(t *testing.T) {
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setSigner(tx, neo.GetCommitteeAddress())
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ok, err := neo.SetGASPerBlock(ic, 10, big.NewInt(1*native.GASFactor))
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require.NoError(t, err)
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require.True(t, ok)
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res, err := neo.CalculateNEOHolderReward(ic.DAO, big.NewInt(100), 5, 15)
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require.NoError(t, err)
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require.EqualValues(t, (100*5*5/10)+(100*5*1/10), res.Int64())
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})
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}
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func TestNEO_CommitteeBountyOnPersist(t *testing.T) {
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bc := newTestChain(t)
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defer bc.Close()
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hs := make([]util.Uint160, testchain.CommitteeSize())
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for i := range hs {
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hs[i] = testchain.PrivateKeyByID(i).GetScriptHash()
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}
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const singleBounty = 50000000
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bs := map[int]int64{0: singleBounty}
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checkBalances := func() {
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for i := 0; i < testchain.CommitteeSize(); i++ {
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require.EqualValues(t, bs[i], bc.GetUtilityTokenBalance(hs[i]).Int64(), i)
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}
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}
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for i := 0; i < testchain.CommitteeSize()*2; i++ {
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require.NoError(t, bc.AddBlock(bc.newBlock()))
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bs[(i+1)%testchain.CommitteeSize()] += singleBounty
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checkBalances()
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}
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}
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