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646 lines
20 KiB
646 lines
20 KiB
package state
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import (
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"github.com/tendermint/tendermint/account"
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_ "github.com/tendermint/tendermint/config/tendermint_test"
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"github.com/tendermint/tendermint/types"
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"bytes"
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"testing"
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"time"
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)
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func execTxWithState(state *State, tx types.Tx, runCall bool) error {
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cache := NewBlockCache(state)
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err := ExecTx(cache, tx, runCall, nil)
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if err != nil {
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return err
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} else {
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cache.Sync()
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return nil
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}
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}
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func execTxWithStateNewBlock(state *State, tx types.Tx, runCall bool) error {
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if err := execTxWithState(state, tx, runCall); err != nil {
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return err
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}
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state.LastBlockHeight += 1
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return nil
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}
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func TestCopyState(t *testing.T) {
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// Generate a random state
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s0, privAccounts, _ := RandGenesisState(10, true, 1000, 5, true, 1000)
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s0Hash := s0.Hash()
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if len(s0Hash) == 0 {
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t.Error("Expected state hash")
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}
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// Check hash of copy
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s0Copy := s0.Copy()
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if !bytes.Equal(s0Hash, s0Copy.Hash()) {
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t.Error("Expected state copy hash to be the same")
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}
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// Mutate the original; hash should change.
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acc0Address := privAccounts[0].PubKey.Address()
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acc := s0.GetAccount(acc0Address)
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acc.Balance += 1
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// The account balance shouldn't have changed yet.
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if s0.GetAccount(acc0Address).Balance == acc.Balance {
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t.Error("Account balance changed unexpectedly")
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}
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// Setting, however, should change the balance.
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s0.UpdateAccount(acc)
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if s0.GetAccount(acc0Address).Balance != acc.Balance {
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t.Error("Account balance wasn't set")
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}
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// Now that the state changed, the hash should change too.
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if bytes.Equal(s0Hash, s0.Hash()) {
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t.Error("Expected state hash to have changed")
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}
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// The s0Copy shouldn't have changed though.
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if !bytes.Equal(s0Hash, s0Copy.Hash()) {
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t.Error("Expected state copy hash to have not changed")
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}
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}
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func makeBlock(t *testing.T, state *State, validation *types.Validation, txs []types.Tx) *types.Block {
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block := &types.Block{
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Header: &types.Header{
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ChainID: state.ChainID,
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Height: state.LastBlockHeight + 1,
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Time: state.LastBlockTime.Add(time.Minute),
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Fees: 0,
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NumTxs: uint(len(txs)),
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LastBlockHash: state.LastBlockHash,
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LastBlockParts: state.LastBlockParts,
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StateHash: nil,
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},
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Validation: validation,
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Data: &types.Data{
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Txs: txs,
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},
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}
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// Fill in block StateHash
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err := state.ComputeBlockStateHash(block)
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if err != nil {
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t.Error("Error appending initial block:", err)
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}
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if len(block.Header.StateHash) == 0 {
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t.Error("Expected StateHash but got nothing.")
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}
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return block
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}
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func TestGenesisSaveLoad(t *testing.T) {
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// Generate a state, save & load it.
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s0, _, _ := RandGenesisState(10, true, 1000, 5, true, 1000)
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// Make complete block and blockParts
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block := makeBlock(t, s0, nil, nil)
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blockParts := block.MakePartSet()
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// Now append the block to s0.
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err := ExecBlock(s0, block, blockParts.Header())
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if err != nil {
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t.Error("Error appending initial block:", err)
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}
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// Save s0
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s0.Save()
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// Sanity check s0
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//s0.DB.(*dbm.MemDB).Print()
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if s0.BondedValidators.TotalVotingPower() == 0 {
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t.Error("s0 BondedValidators TotalVotingPower should not be 0")
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}
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if s0.LastBlockHeight != 1 {
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t.Error("s0 LastBlockHeight should be 1, got", s0.LastBlockHeight)
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}
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// Load s1
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s1 := LoadState(s0.DB)
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// Compare height & blockHash
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if s0.LastBlockHeight != s1.LastBlockHeight {
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t.Error("LastBlockHeight mismatch")
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}
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if !bytes.Equal(s0.LastBlockHash, s1.LastBlockHash) {
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t.Error("LastBlockHash mismatch")
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}
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// Compare state merkle trees
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if s0.BondedValidators.Size() != s1.BondedValidators.Size() {
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t.Error("BondedValidators Size mismatch")
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}
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if s0.BondedValidators.TotalVotingPower() != s1.BondedValidators.TotalVotingPower() {
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t.Error("BondedValidators TotalVotingPower mismatch")
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}
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if !bytes.Equal(s0.BondedValidators.Hash(), s1.BondedValidators.Hash()) {
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t.Error("BondedValidators hash mismatch")
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}
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if s0.UnbondingValidators.Size() != s1.UnbondingValidators.Size() {
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t.Error("UnbondingValidators Size mismatch")
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}
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if s0.UnbondingValidators.TotalVotingPower() != s1.UnbondingValidators.TotalVotingPower() {
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t.Error("UnbondingValidators TotalVotingPower mismatch")
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}
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if !bytes.Equal(s0.UnbondingValidators.Hash(), s1.UnbondingValidators.Hash()) {
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t.Error("UnbondingValidators hash mismatch")
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}
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if !bytes.Equal(s0.accounts.Hash(), s1.accounts.Hash()) {
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t.Error("Accounts mismatch")
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}
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if !bytes.Equal(s0.validatorInfos.Hash(), s1.validatorInfos.Hash()) {
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t.Error("Accounts mismatch")
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}
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}
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func TestTxSequence(t *testing.T) {
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state, privAccounts, _ := RandGenesisState(3, true, 1000, 1, true, 1000)
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acc0 := state.GetAccount(privAccounts[0].PubKey.Address())
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acc0PubKey := privAccounts[0].PubKey
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acc1 := state.GetAccount(privAccounts[1].PubKey.Address())
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// Test a variety of sequence numbers for the tx.
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// The tx should only pass when i == 1.
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for i := -1; i < 3; i++ {
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sequence := acc0.Sequence + uint(i)
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tx := types.NewSendTx()
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tx.AddInputWithNonce(acc0PubKey, 1, sequence)
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tx.AddOutput(acc1.Address, 1)
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tx.Inputs[0].Signature = privAccounts[0].Sign(state.ChainID, tx)
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stateCopy := state.Copy()
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err := execTxWithState(stateCopy, tx, true)
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if i == 1 {
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// Sequence is good.
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if err != nil {
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t.Errorf("Expected good sequence to pass: %v", err)
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}
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// Check acc.Sequence.
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newAcc0 := stateCopy.GetAccount(acc0.Address)
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if newAcc0.Sequence != sequence {
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t.Errorf("Expected account sequence to change to %v, got %v",
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sequence, newAcc0.Sequence)
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}
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} else {
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// Sequence is bad.
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if err == nil {
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t.Errorf("Expected bad sequence to fail")
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}
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// Check acc.Sequence. (shouldn't have changed)
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newAcc0 := stateCopy.GetAccount(acc0.Address)
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if newAcc0.Sequence != acc0.Sequence {
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t.Errorf("Expected account sequence to not change from %v, got %v",
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acc0.Sequence, newAcc0.Sequence)
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}
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}
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}
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}
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func TestNameTxs(t *testing.T) {
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state, privAccounts, _ := RandGenesisState(3, true, 1000, 1, true, 1000)
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types.MinNameRegistrationPeriod = 5
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startingBlock := uint64(state.LastBlockHeight)
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// try some bad names. these should all fail
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names := []string{"", "\n", "123#$%", "\x00", string([]byte{20, 40, 60, 80}), "baffledbythespectacleinallofthisyouseeehesaidwithouteyes", "no spaces please"}
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data := "something about all this just doesn't feel right."
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fee := uint64(1000)
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numDesiredBlocks := uint64(5)
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for _, name := range names {
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amt := fee + numDesiredBlocks*types.NameCostPerByte*types.NameCostPerBlock*types.BaseEntryCost(name, data)
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tx, _ := types.NewNameTx(state, privAccounts[0].PubKey, name, data, amt, fee)
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tx.Sign(state.ChainID, privAccounts[0])
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if err := execTxWithState(state, tx, true); err == nil {
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t.Fatalf("Expected invalid name error from %s", name)
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}
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}
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// try some bad data. these should all fail
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name := "hold_it_chum"
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datas := []string{"cold&warm", "!@#$%^&*()", "<<<>>>>", "because why would you ever need a ~ or a & or even a % in a json file? make your case and we'll talk"}
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for _, data := range datas {
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amt := fee + numDesiredBlocks*types.NameCostPerByte*types.NameCostPerBlock*types.BaseEntryCost(name, data)
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tx, _ := types.NewNameTx(state, privAccounts[0].PubKey, name, data, amt, fee)
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tx.Sign(state.ChainID, privAccounts[0])
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if err := execTxWithState(state, tx, true); err == nil {
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t.Fatalf("Expected invalid data error from %s", data)
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}
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}
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validateEntry := func(t *testing.T, entry *types.NameRegEntry, name, data string, addr []byte, expires uint64) {
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if entry == nil {
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t.Fatalf("Could not find name %s", name)
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}
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if bytes.Compare(entry.Owner, addr) != 0 {
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t.Fatalf("Wrong owner. Got %X expected %X", entry.Owner, addr)
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}
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if data != entry.Data {
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t.Fatalf("Wrong data. Got %s expected %s", entry.Data, data)
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}
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if name != entry.Name {
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t.Fatalf("Wrong name. Got %s expected %s", entry.Name, name)
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}
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if expires != entry.Expires {
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t.Fatalf("Wrong expiry. Got %d, expected %d", entry.Expires, expires)
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}
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}
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// try a good one, check data, owner, expiry
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name = "looking_good/karaoke_bar"
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data = "on this side of neptune there are 1234567890 people: first is OMNIVORE. Or is it. Ok this is pretty restrictive. No exclamations :(. Faces tho :')"
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amt := fee + numDesiredBlocks*types.NameCostPerByte*types.NameCostPerBlock*types.BaseEntryCost(name, data)
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tx, _ := types.NewNameTx(state, privAccounts[0].PubKey, name, data, amt, fee)
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tx.Sign(state.ChainID, privAccounts[0])
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if err := execTxWithState(state, tx, true); err != nil {
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t.Fatal(err)
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}
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entry := state.GetNameRegEntry(name)
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validateEntry(t, entry, name, data, privAccounts[0].Address, startingBlock+numDesiredBlocks)
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// fail to update it as non-owner, in same block
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tx, _ = types.NewNameTx(state, privAccounts[1].PubKey, name, data, amt, fee)
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tx.Sign(state.ChainID, privAccounts[1])
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if err := execTxWithState(state, tx, true); err == nil {
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t.Fatal("Expected error")
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}
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// update it as owner, just to increase expiry, in same block
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// NOTE: we have to resend the data or it will clear it (is this what we want?)
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tx, _ = types.NewNameTx(state, privAccounts[0].PubKey, name, data, amt, fee)
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tx.Sign(state.ChainID, privAccounts[0])
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if err := execTxWithStateNewBlock(state, tx, true); err != nil {
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t.Fatal(err)
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}
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entry = state.GetNameRegEntry(name)
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validateEntry(t, entry, name, data, privAccounts[0].Address, startingBlock+numDesiredBlocks*2)
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// update it as owner, just to increase expiry, in next block
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tx, _ = types.NewNameTx(state, privAccounts[0].PubKey, name, data, amt, fee)
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tx.Sign(state.ChainID, privAccounts[0])
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if err := execTxWithStateNewBlock(state, tx, true); err != nil {
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t.Fatal(err)
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}
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entry = state.GetNameRegEntry(name)
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validateEntry(t, entry, name, data, privAccounts[0].Address, startingBlock+numDesiredBlocks*3)
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// fail to update it as non-owner
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state.LastBlockHeight = uint(entry.Expires - 1)
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tx, _ = types.NewNameTx(state, privAccounts[1].PubKey, name, data, amt, fee)
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tx.Sign(state.ChainID, privAccounts[1])
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if err := execTxWithState(state, tx, true); err == nil {
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t.Fatal("Expected error")
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}
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// once expires, non-owner succeeds
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state.LastBlockHeight = uint(entry.Expires)
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tx, _ = types.NewNameTx(state, privAccounts[1].PubKey, name, data, amt, fee)
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tx.Sign(state.ChainID, privAccounts[1])
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if err := execTxWithState(state, tx, true); err != nil {
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t.Fatal(err)
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}
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entry = state.GetNameRegEntry(name)
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validateEntry(t, entry, name, data, privAccounts[1].Address, uint64(state.LastBlockHeight)+numDesiredBlocks)
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// update it as new owner, with new data (longer), but keep the expiry!
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data = "In the beginning there was no thing, not even the beginning. It hadn't been here, no there, nor for that matter anywhere, not especially because it had not to even exist, let alone to not. Nothing especially odd about that."
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oldCredit := amt - fee
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numDesiredBlocks = 10
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amt = fee + (numDesiredBlocks*types.NameCostPerByte*types.NameCostPerBlock*types.BaseEntryCost(name, data) - oldCredit)
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tx, _ = types.NewNameTx(state, privAccounts[1].PubKey, name, data, amt, fee)
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tx.Sign(state.ChainID, privAccounts[1])
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if err := execTxWithState(state, tx, true); err != nil {
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t.Fatal(err)
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}
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entry = state.GetNameRegEntry(name)
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validateEntry(t, entry, name, data, privAccounts[1].Address, uint64(state.LastBlockHeight)+numDesiredBlocks)
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// test removal
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amt = fee
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data = ""
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tx, _ = types.NewNameTx(state, privAccounts[1].PubKey, name, data, amt, fee)
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tx.Sign(state.ChainID, privAccounts[1])
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if err := execTxWithStateNewBlock(state, tx, true); err != nil {
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t.Fatal(err)
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}
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entry = state.GetNameRegEntry(name)
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if entry != nil {
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t.Fatal("Expected removed entry to be nil")
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}
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// create entry by key0,
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// test removal by key1 after expiry
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name = "looking_good/karaoke_bar"
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data = "some data"
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amt = fee + numDesiredBlocks*types.NameCostPerByte*types.NameCostPerBlock*types.BaseEntryCost(name, data)
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tx, _ = types.NewNameTx(state, privAccounts[0].PubKey, name, data, amt, fee)
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tx.Sign(state.ChainID, privAccounts[0])
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if err := execTxWithState(state, tx, true); err != nil {
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t.Fatal(err)
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}
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entry = state.GetNameRegEntry(name)
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validateEntry(t, entry, name, data, privAccounts[0].Address, uint64(state.LastBlockHeight)+numDesiredBlocks)
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state.LastBlockHeight = uint(entry.Expires)
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amt = fee
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data = ""
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tx, _ = types.NewNameTx(state, privAccounts[1].PubKey, name, data, amt, fee)
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tx.Sign(state.ChainID, privAccounts[1])
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if err := execTxWithStateNewBlock(state, tx, true); err != nil {
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t.Fatal(err)
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}
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entry = state.GetNameRegEntry(name)
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if entry != nil {
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t.Fatal("Expected removed entry to be nil")
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}
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}
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// TODO: test overflows.
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// TODO: test for unbonding validators.
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func TestTxs(t *testing.T) {
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state, privAccounts, _ := RandGenesisState(3, true, 1000, 1, true, 1000)
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//val0 := state.GetValidatorInfo(privValidators[0].Address)
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acc0 := state.GetAccount(privAccounts[0].PubKey.Address())
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acc0PubKey := privAccounts[0].PubKey
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acc1 := state.GetAccount(privAccounts[1].PubKey.Address())
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// SendTx.
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{
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state := state.Copy()
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tx := &types.SendTx{
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Inputs: []*types.TxInput{
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&types.TxInput{
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Address: acc0.Address,
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Amount: 1,
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Sequence: acc0.Sequence + 1,
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PubKey: acc0PubKey,
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},
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},
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Outputs: []*types.TxOutput{
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&types.TxOutput{
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Address: acc1.Address,
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Amount: 1,
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},
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},
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}
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tx.Inputs[0].Signature = privAccounts[0].Sign(state.ChainID, tx)
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err := execTxWithState(state, tx, true)
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if err != nil {
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t.Errorf("Got error in executing send transaction, %v", err)
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}
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newAcc0 := state.GetAccount(acc0.Address)
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if acc0.Balance-1 != newAcc0.Balance {
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t.Errorf("Unexpected newAcc0 balance. Expected %v, got %v",
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acc0.Balance-1, newAcc0.Balance)
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}
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newAcc1 := state.GetAccount(acc1.Address)
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if acc1.Balance+1 != newAcc1.Balance {
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t.Errorf("Unexpected newAcc1 balance. Expected %v, got %v",
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acc1.Balance+1, newAcc1.Balance)
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}
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}
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// CallTx. Just runs through it and checks the transfer. See vm, rpc tests for more
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{
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state := state.Copy()
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newAcc1 := state.GetAccount(acc1.Address)
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newAcc1.Code = []byte{0x60}
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state.UpdateAccount(newAcc1)
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tx := &types.CallTx{
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Input: &types.TxInput{
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Address: acc0.Address,
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Amount: 1,
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Sequence: acc0.Sequence + 1,
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PubKey: acc0PubKey,
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},
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Address: acc1.Address,
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GasLimit: 10,
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}
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tx.Input.Signature = privAccounts[0].Sign(state.ChainID, tx)
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err := execTxWithState(state, tx, true)
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if err != nil {
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t.Errorf("Got error in executing call transaction, %v", err)
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}
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newAcc0 := state.GetAccount(acc0.Address)
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if acc0.Balance-1 != newAcc0.Balance {
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t.Errorf("Unexpected newAcc0 balance. Expected %v, got %v",
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acc0.Balance-1, newAcc0.Balance)
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}
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newAcc1 = state.GetAccount(acc1.Address)
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if acc1.Balance+1 != newAcc1.Balance {
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t.Errorf("Unexpected newAcc1 balance. Expected %v, got %v",
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acc1.Balance+1, newAcc1.Balance)
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}
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}
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// NameTx.
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{
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|
entryName := "satoshi"
|
|
entryData := `
|
|
A purely peer-to-peer version of electronic cash would allow online
|
|
payments to be sent directly from one party to another without going through a
|
|
financial institution. Digital signatures provide part of the solution, but the main
|
|
benefits are lost if a trusted third party is still required to prevent double-spending.
|
|
We propose a solution to the double-spending problem using a peer-to-peer network.
|
|
The network timestamps transactions by hashing them into an ongoing chain of
|
|
hash-based proof-of-work, forming a record that cannot be changed without redoing
|
|
the proof-of-work. The longest chain not only serves as proof of the sequence of
|
|
events witnessed, but proof that it came from the largest pool of CPU power. As
|
|
long as a majority of CPU power is controlled by nodes that are not cooperating to
|
|
attack the network, they'll generate the longest chain and outpace attackers. The
|
|
network itself requires minimal structure. Messages are broadcast on a best effort
|
|
basis, and nodes can leave and rejoin the network at will, accepting the longest
|
|
proof-of-work chain as proof of what happened while they were gone `
|
|
entryAmount := uint64(10000)
|
|
|
|
state := state.Copy()
|
|
tx := &types.NameTx{
|
|
Input: &types.TxInput{
|
|
Address: acc0.Address,
|
|
Amount: entryAmount,
|
|
Sequence: acc0.Sequence + 1,
|
|
PubKey: acc0PubKey,
|
|
},
|
|
Name: entryName,
|
|
Data: entryData,
|
|
}
|
|
|
|
tx.Input.Signature = privAccounts[0].Sign(state.ChainID, tx)
|
|
err := execTxWithState(state, tx, true)
|
|
if err != nil {
|
|
t.Errorf("Got error in executing call transaction, %v", err)
|
|
}
|
|
newAcc0 := state.GetAccount(acc0.Address)
|
|
if acc0.Balance-entryAmount != newAcc0.Balance {
|
|
t.Errorf("Unexpected newAcc0 balance. Expected %v, got %v",
|
|
acc0.Balance-entryAmount, newAcc0.Balance)
|
|
}
|
|
entry := state.GetNameRegEntry(entryName)
|
|
if entry == nil {
|
|
t.Errorf("Expected an entry but got nil")
|
|
}
|
|
if entry.Data != entryData {
|
|
t.Errorf("Wrong data stored")
|
|
}
|
|
|
|
// test a bad string
|
|
tx.Data = string([]byte{0, 1, 2, 3, 127, 128, 129, 200, 251})
|
|
tx.Input.Sequence += 1
|
|
tx.Input.Signature = privAccounts[0].Sign(state.ChainID, tx)
|
|
err = execTxWithState(state, tx, true)
|
|
if err != types.ErrTxInvalidString {
|
|
t.Errorf("Expected invalid string error. Got: %s", err.Error())
|
|
}
|
|
}
|
|
|
|
// BondTx.
|
|
{
|
|
state := state.Copy()
|
|
tx := &types.BondTx{
|
|
PubKey: acc0PubKey.(account.PubKeyEd25519),
|
|
Inputs: []*types.TxInput{
|
|
&types.TxInput{
|
|
Address: acc0.Address,
|
|
Amount: 1,
|
|
Sequence: acc0.Sequence + 1,
|
|
PubKey: acc0PubKey,
|
|
},
|
|
},
|
|
UnbondTo: []*types.TxOutput{
|
|
&types.TxOutput{
|
|
Address: acc0.Address,
|
|
Amount: 1,
|
|
},
|
|
},
|
|
}
|
|
tx.Signature = privAccounts[0].Sign(state.ChainID, tx).(account.SignatureEd25519)
|
|
tx.Inputs[0].Signature = privAccounts[0].Sign(state.ChainID, tx)
|
|
err := execTxWithState(state, tx, true)
|
|
if err != nil {
|
|
t.Errorf("Got error in executing bond transaction, %v", err)
|
|
}
|
|
newAcc0 := state.GetAccount(acc0.Address)
|
|
if newAcc0.Balance != acc0.Balance-1 {
|
|
t.Errorf("Unexpected newAcc0 balance. Expected %v, got %v",
|
|
acc0.Balance-1, newAcc0.Balance)
|
|
}
|
|
_, acc0Val := state.BondedValidators.GetByAddress(acc0.Address)
|
|
if acc0Val == nil {
|
|
t.Errorf("acc0Val not present")
|
|
}
|
|
if acc0Val.BondHeight != state.LastBlockHeight+1 {
|
|
t.Errorf("Unexpected bond height. Expected %v, got %v",
|
|
state.LastBlockHeight, acc0Val.BondHeight)
|
|
}
|
|
if acc0Val.VotingPower != 1 {
|
|
t.Errorf("Unexpected voting power. Expected %v, got %v",
|
|
acc0Val.VotingPower, acc0.Balance)
|
|
}
|
|
if acc0Val.Accum != 0 {
|
|
t.Errorf("Unexpected accum. Expected 0, got %v",
|
|
acc0Val.Accum)
|
|
}
|
|
}
|
|
|
|
// TODO UnbondTx.
|
|
|
|
}
|
|
|
|
func TestAddValidator(t *testing.T) {
|
|
|
|
// Generate a state, save & load it.
|
|
s0, privAccounts, privValidators := RandGenesisState(10, false, 1000, 1, false, 1000)
|
|
|
|
// The first privAccount will become a validator
|
|
acc0 := privAccounts[0]
|
|
bondTx := &types.BondTx{
|
|
PubKey: acc0.PubKey.(account.PubKeyEd25519),
|
|
Inputs: []*types.TxInput{
|
|
&types.TxInput{
|
|
Address: acc0.Address,
|
|
Amount: 1000,
|
|
Sequence: 1,
|
|
PubKey: acc0.PubKey,
|
|
},
|
|
},
|
|
UnbondTo: []*types.TxOutput{
|
|
&types.TxOutput{
|
|
Address: acc0.Address,
|
|
Amount: 1000,
|
|
},
|
|
},
|
|
}
|
|
bondTx.Signature = acc0.Sign(s0.ChainID, bondTx).(account.SignatureEd25519)
|
|
bondTx.Inputs[0].Signature = acc0.Sign(s0.ChainID, bondTx)
|
|
|
|
// Make complete block and blockParts
|
|
block0 := makeBlock(t, s0, nil, []types.Tx{bondTx})
|
|
block0Parts := block0.MakePartSet()
|
|
|
|
// Sanity check
|
|
if s0.BondedValidators.Size() != 1 {
|
|
t.Error("Expected there to be 1 validators before bondTx")
|
|
}
|
|
|
|
// Now append the block to s0.
|
|
err := ExecBlock(s0, block0, block0Parts.Header())
|
|
if err != nil {
|
|
t.Error("Error appending initial block:", err)
|
|
}
|
|
|
|
// Must save before further modification
|
|
s0.Save()
|
|
|
|
// Test new validator set
|
|
if s0.BondedValidators.Size() != 2 {
|
|
t.Error("Expected there to be 2 validators after bondTx")
|
|
}
|
|
|
|
// The validation for the next block should only require 1 signature
|
|
// (the new validator wasn't active for block0)
|
|
precommit0 := &types.Vote{
|
|
Height: 1,
|
|
Round: 0,
|
|
Type: types.VoteTypePrecommit,
|
|
BlockHash: block0.Hash(),
|
|
BlockParts: block0Parts.Header(),
|
|
}
|
|
privValidators[0].SignVote(s0.ChainID, precommit0)
|
|
|
|
block1 := makeBlock(t, s0,
|
|
types.Validation{
|
|
Round: 0,
|
|
Precommits: []types.Precommit{
|
|
types.Precommit{
|
|
Address: privValidators[0].Address,
|
|
Signature: precommit0.Signature,
|
|
},
|
|
},
|
|
}, nil,
|
|
)
|
|
block1Parts := block1.MakePartSet()
|
|
err = ExecBlock(s0, block1, block1Parts.Header())
|
|
if err != nil {
|
|
t.Error("Error appending secondary block:", err)
|
|
}
|
|
}
|