mirror of
https://github.com/nspcc-dev/neo-go.git
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c113d682bd
We need to store NEO balance's LastUpdateHeight before GAS mint, because mint can call onNEP17Payment and onNEP17Payment can call NEO transfer which also calls GAS mint. Storing balance height allows to avoid recursion.
471 lines
17 KiB
Go
471 lines
17 KiB
Go
package core
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import (
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"math"
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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/internal/random"
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"github.com/nspcc-dev/neo-go/internal/testchain"
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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/io"
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"github.com/nspcc-dev/neo-go/pkg/smartcontract/callflag"
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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/vm/stackitem"
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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.GetAppExecResults(h, trigger.Application)
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require.NoError(t, err)
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require.Equal(t, 1, len(aer))
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require.Equal(t, vm.HaltState, aer[0].VMState, aer[0].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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neo := bc.contracts.NEO
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tx := transaction.New([]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.AppCall(w.BinWriter, bc.contracts.NEO.Hash, "transfer", callflag.All,
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neoOwner.BytesBE(), to.BytesBE(),
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big.NewInt(int64(sz-i)*1000000).Int64(), nil)
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emit.Opcodes(w.BinWriter, opcode.ASSERT)
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emit.AppCall(w.BinWriter, bc.contracts.GAS.Hash, "transfer", callflag.All,
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neoOwner.BytesBE(), to.BytesBE(),
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int64(1_000_000_000), nil)
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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(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, testchain.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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_, err = ic.DAO.Persist()
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require.NoError(t, err)
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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.AppCall(w.BinWriter, bc.contracts.NEO.Hash, "transfer", callflag.All,
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h.BytesBE(), h.BytesBE(), int64(1), nil)
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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(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 = 11_000_000
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setSigner(tx, h)
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require.NoError(t, accs[i].SignTx(netmode.UnitTestNet, 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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// TestNEO_RecursiveDistribution is a test for https://github.com/nspcc-dev/neo-go/pull/2181.
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func TestNEO_RecursiveGASMint(t *testing.T) {
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bc := newTestChain(t)
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initBasicChain(t, bc)
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contractHash, err := bc.GetContractScriptHash(1) // deployed rpc/server/testdata/test_contract.go contract
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require.NoError(t, err)
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tx := transferTokenFromMultisigAccount(t, bc, contractHash, bc.contracts.GAS.Hash, 2_0000_0000)
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checkTxHalt(t, bc, tx.Hash())
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// Transfer 10 NEO to test contract, the contract should earn some GAS by owning this NEO.
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tx = transferTokenFromMultisigAccount(t, bc, contractHash, bc.contracts.NEO.Hash, 10)
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res, err := bc.GetAppExecResults(tx.Hash(), trigger.Application)
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require.NoError(t, err)
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require.Equal(t, vm.HaltState, res[0].VMState)
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// Add blocks to be able to trigger NEO transfer from contract address to owner
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// address inside onNEP17Payment (the contract starts NEO transfers from chain height = 100).
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for i := bc.BlockHeight(); i < 100; i++ {
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require.NoError(t, bc.AddBlock(bc.newBlock()))
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}
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// Transfer 1 more NEO to the contract. Transfer will trigger onNEP17Payment. OnNEP17Payment will
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// trigger transfer of 11 NEO to the contract owner (based on the contract code). 11 NEO Transfer will
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// trigger GAS distribution. GAS transfer will trigger OnNEP17Payment one more time. The recursion
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// shouldn't occur here, because contract's balance LastUpdated height has already been updated in
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// this block.
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tx = transferTokenFromMultisigAccount(t, bc, contractHash, bc.contracts.NEO.Hash, 1)
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res, err = bc.GetAppExecResults(tx.Hash(), trigger.Application)
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require.NoError(t, err)
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require.Equal(t, vm.HaltState, res[0].VMState, res[0].FaultException)
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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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testGetSet(t, bc, bc.contracts.NEO.Hash, "GasPerBlock",
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5*native.GASFactor, 0, 10*native.GASFactor)
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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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neo := bc.contracts.NEO
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tx := transaction.New([]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.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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err := neo.SetGASPerBlock(ic, 10, big.NewInt(1*native.GASFactor))
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require.NoError(t, err)
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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_GetAccountState(t *testing.T) {
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bc := newTestChain(t)
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acc, err := wallet.NewAccount()
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require.NoError(t, err)
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h := acc.Contract.ScriptHash()
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t.Run("empty", func(t *testing.T) {
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res, err := invokeContractMethod(bc, 1_0000000, bc.contracts.NEO.Hash, "getAccountState", h)
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require.NoError(t, err)
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checkResult(t, res, stackitem.Null{})
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})
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const amount = 123
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transferTokenFromMultisigAccountCheckOK(t, bc, h, bc.GoverningTokenHash(), int64(amount))
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t.Run("with funds", func(t *testing.T) {
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bs := stackitem.NewStruct([]stackitem.Item{
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stackitem.Make(123),
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stackitem.Make(bc.BlockHeight()),
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stackitem.Null{},
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})
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res, err := invokeContractMethod(bc, 1_0000000, bc.contracts.NEO.Hash, "getAccountState", h)
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require.NoError(t, err)
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checkResult(t, res, bs)
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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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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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func TestNEO_TransferOnPayment(t *testing.T) {
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bc := newTestChain(t)
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cs, _ := getTestContractState(bc)
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require.NoError(t, bc.contracts.Management.PutContractState(bc.dao, cs))
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const amount = 2
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tx := transferTokenFromMultisigAccount(t, bc, cs.Hash, bc.contracts.NEO.Hash, amount)
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aer, err := bc.GetAppExecResults(tx.Hash(), trigger.Application)
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require.NoError(t, err)
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require.Equal(t, vm.HaltState, aer[0].VMState)
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require.Len(t, aer[0].Events, 3) // transfer + GAS claim for sender + onPayment
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e := aer[0].Events[2]
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require.Equal(t, "LastPayment", e.Name)
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arr := e.Item.Value().([]stackitem.Item)
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require.Equal(t, bc.contracts.NEO.Hash.BytesBE(), arr[0].Value())
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require.Equal(t, neoOwner.BytesBE(), arr[1].Value())
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require.Equal(t, big.NewInt(amount), arr[2].Value())
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tx = transferTokenFromMultisigAccount(t, bc, cs.Hash, bc.contracts.NEO.Hash, amount)
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aer, err = bc.GetAppExecResults(tx.Hash(), trigger.Application)
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require.NoError(t, err)
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require.Equal(t, vm.HaltState, aer[0].VMState)
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// Now we must also have GAS claim for contract and corresponding `onPayment`.
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require.Len(t, aer[0].Events, 5)
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e = aer[0].Events[2] // onPayment for GAS claim
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require.Equal(t, "LastPayment", e.Name)
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arr = e.Item.Value().([]stackitem.Item)
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require.Equal(t, stackitem.Null{}, arr[1])
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require.Equal(t, bc.contracts.GAS.Hash.BytesBE(), arr[0].Value())
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e = aer[0].Events[4] // onPayment for NEO transfer
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require.Equal(t, "LastPayment", e.Name)
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arr = e.Item.Value().([]stackitem.Item)
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require.Equal(t, bc.contracts.NEO.Hash.BytesBE(), arr[0].Value())
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require.Equal(t, neoOwner.BytesBE(), arr[1].Value())
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require.Equal(t, big.NewInt(amount), arr[2].Value())
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}
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func TestRegisterPrice(t *testing.T) {
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bc := newTestChain(t)
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testGetSet(t, bc, bc.contracts.NEO.Hash, "RegisterPrice",
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native.DefaultRegisterPrice, 1, math.MaxInt64)
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}
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func TestNEO_Roundtrip(t *testing.T) {
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bc := newTestChain(t)
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initialBalance, initialHeight := bc.GetGoverningTokenBalance(neoOwner)
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require.NotNil(t, initialBalance)
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t.Run("bad: amount > initial balance", func(t *testing.T) {
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tx := transferTokenFromMultisigAccountWithAssert(t, bc, neoOwner, bc.contracts.NEO.Hash, initialBalance.Int64()+1, false)
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aer, err := bc.GetAppExecResults(tx.Hash(), trigger.Application)
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require.NoError(t, err)
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require.Equal(t, vm.HaltState, aer[0].VMState, aer[0].FaultException) // transfer without assert => HALT state
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checkResult(t, &aer[0], stackitem.NewBool(false))
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require.Len(t, aer[0].Events, 0) // failed transfer => no events
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// check balance and height were not changed
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updatedBalance, updatedHeight := bc.GetGoverningTokenBalance(neoOwner)
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require.Equal(t, initialBalance, updatedBalance)
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require.Equal(t, initialHeight, updatedHeight)
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})
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t.Run("good: amount == initial balance", func(t *testing.T) {
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tx := transferTokenFromMultisigAccountWithAssert(t, bc, neoOwner, bc.contracts.NEO.Hash, initialBalance.Int64(), false)
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aer, err := bc.GetAppExecResults(tx.Hash(), trigger.Application)
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require.NoError(t, err)
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require.Equal(t, vm.HaltState, aer[0].VMState, aer[0].FaultException)
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checkResult(t, &aer[0], stackitem.NewBool(true))
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require.Len(t, aer[0].Events, 2) // roundtrip + GAS claim
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// check balance wasn't changed and height was updated
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updatedBalance, updatedHeight := bc.GetGoverningTokenBalance(neoOwner)
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require.Equal(t, initialBalance, updatedBalance)
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require.Equal(t, bc.BlockHeight(), updatedHeight)
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})
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}
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func TestNEO_TransferZeroWithZeroBalance(t *testing.T) {
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bc := newTestChain(t)
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check := func(t *testing.T, roundtrip bool) {
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acc := newAccountWithGAS(t, bc)
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from := acc.PrivateKey().GetScriptHash()
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to := from
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if !roundtrip {
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to = random.Uint160()
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}
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transferTx := newNEP17TransferWithAssert(bc.contracts.NEO.Hash, acc.PrivateKey().GetScriptHash(), to, 0, true)
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transferTx.SystemFee = 100000000
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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)
|
|
})
|
|
}
|