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313 lines
8.4 KiB
313 lines
8.4 KiB
package state
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import (
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. "github.com/tendermint/tendermint/binary"
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. "github.com/tendermint/tendermint/blocks"
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. "github.com/tendermint/tendermint/common"
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. "github.com/tendermint/tendermint/config"
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db_ "github.com/tendermint/tendermint/db"
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"bytes"
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"testing"
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"time"
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)
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func randAccountDetail(id uint64, status byte) (*AccountDetail, *PrivAccount) {
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privAccount := GenPrivAccount()
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privAccount.Id = id
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account := privAccount.Account
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return &AccountDetail{
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Account: account,
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Sequence: RandUInt(),
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Balance: RandUInt64() + 1000, // At least 1000.
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Status: status,
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}, privAccount
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}
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// The first numValidators accounts are validators.
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func randGenesisState(numAccounts int, numValidators int) (*State, []*PrivAccount) {
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db := db_.NewMemDB()
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accountDetails := make([]*AccountDetail, numAccounts)
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privAccounts := make([]*PrivAccount, numAccounts)
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for i := 0; i < numAccounts; i++ {
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if i < numValidators {
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accountDetails[i], privAccounts[i] =
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randAccountDetail(uint64(i), AccountStatusBonded)
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} else {
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accountDetails[i], privAccounts[i] =
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randAccountDetail(uint64(i), AccountStatusNominal)
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}
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}
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s0 := GenesisState(db, time.Now(), accountDetails)
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s0.Save()
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return s0, privAccounts
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}
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func TestCopyState(t *testing.T) {
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// Generate a state
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s0, _ := randGenesisState(10, 5)
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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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accDet := s0.GetAccountDetail(0)
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accDet.Balance += 1
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// The account balance shouldn't have changed yet.
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if s0.GetAccountDetail(0).Balance == accDet.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.SetAccountDetail(accDet)
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if s0.GetAccountDetail(0).Balance != accDet.Balance {
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t.Error("Account balance wasn't set")
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}
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// How 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 TestGenesisSaveLoad(t *testing.T) {
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// Generate a state, save & load it.
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s0, _ := randGenesisState(10, 5)
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// Mutate the state to append one empty block.
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block := &Block{
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Header: &Header{
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Network: Config.Network,
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Height: 1,
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Time: s0.LastBlockTime.Add(time.Minute),
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Fees: 0,
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LastBlockHash: s0.LastBlockHash,
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LastBlockParts: s0.LastBlockParts,
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StateHash: nil,
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},
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Validation: &Validation{},
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Data: &Data{
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Txs: []Tx{},
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},
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}
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blockParts := NewPartSetFromData(BinaryBytes(block))
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// The second argument to AppendBlock() is false,
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// which sets Block.Header.StateHash.
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err := s0.Copy().AppendBlock(block, blockParts.Header(), false)
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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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// Now append the block to s0.
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// This time we also check the StateHash (as computed above).
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err = s0.AppendBlock(block, blockParts.Header(), true)
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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.(*db_.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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// The BondedValidators hash should have changed because
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// each AppendBlock() calls IncrementAccum(),
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// changing each validator's Accum.
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t.Error("BondedValidators hash should have changed")
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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.accountDetails.Hash(), s1.accountDetails.Hash()) {
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t.Error("AccountDetail 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, 1)
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acc1 := state.GetAccountDetail(1) // Non-validator
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// Try executing a SendTx with various sequence numbers.
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stxProto := SendTx{
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BaseTx: BaseTx{
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Sequence: acc1.Sequence + 1,
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Fee: 0},
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To: 2,
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Amount: 1,
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}
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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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stxCopy := stxProto
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stx := &stxCopy
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stx.Sequence = uint(int(acc1.Sequence) + i)
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privAccounts[1].Sign(stx)
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stateCopy := state.Copy()
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err := stateCopy.ExecTx(stx)
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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")
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}
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// Check accDet.Sequence.
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newAcc1 := stateCopy.GetAccountDetail(1)
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if newAcc1.Sequence != stx.Sequence {
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t.Errorf("Expected account sequence to change")
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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 accDet.Sequence. (shouldn't have changed)
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newAcc1 := stateCopy.GetAccountDetail(1)
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if newAcc1.Sequence != acc1.Sequence {
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t.Errorf("Expected account sequence to not change")
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}
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}
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}
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}
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func TestTxs(t *testing.T) {
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state, privAccounts := randGenesisState(3, 1)
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acc0 := state.GetAccountDetail(0) // Validator
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acc1 := state.GetAccountDetail(1) // Non-validator
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acc2 := state.GetAccountDetail(2) // Non-validator
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// SendTx.
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{
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state := state.Copy()
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stx := &SendTx{
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BaseTx: BaseTx{
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Sequence: acc1.Sequence + 1,
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Fee: 0},
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To: 2,
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Amount: 1,
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}
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privAccounts[1].Sign(stx)
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err := state.ExecTx(stx)
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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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newAcc1 := state.GetAccountDetail(1)
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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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newAcc2 := state.GetAccountDetail(2)
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if acc2.Balance+1 != newAcc2.Balance {
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t.Errorf("Unexpected newAcc2 balance. Expected %v, got %v",
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acc2.Balance+1, newAcc2.Balance)
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}
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}
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// TODO: test overflows.
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// SendTx should fail for bonded validators.
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{
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state := state.Copy()
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stx := &SendTx{
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BaseTx: BaseTx{
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Sequence: acc0.Sequence + 1,
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Fee: 0},
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To: 2,
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Amount: 1,
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}
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privAccounts[0].Sign(stx)
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err := state.ExecTx(stx)
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if err == nil {
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t.Errorf("Expected error, SendTx should fail for bonded validators")
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}
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}
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// TODO: test for unbonding validators.
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// BondTx.
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{
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state := state.Copy()
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btx := &BondTx{
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BaseTx: BaseTx{
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Sequence: acc1.Sequence + 1,
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Fee: 0},
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}
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privAccounts[1].Sign(btx)
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err := state.ExecTx(btx)
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if err != nil {
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t.Errorf("Got error in executing bond transaction, %v", err)
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}
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newAcc1 := state.GetAccountDetail(1)
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if acc1.Balance != newAcc1.Balance {
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t.Errorf("Unexpected newAcc1 balance. Expected %v, got %v",
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acc1.Balance, newAcc1.Balance)
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}
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if newAcc1.Status != AccountStatusBonded {
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t.Errorf("Unexpected newAcc1 status.")
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}
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_, acc1Val := state.BondedValidators.GetById(acc1.Id)
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if acc1Val == nil {
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t.Errorf("acc1Val not present")
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}
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if acc1Val.BondHeight != state.LastBlockHeight {
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t.Errorf("Unexpected bond height. Expected %v, got %v",
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state.LastBlockHeight, acc1Val.BondHeight)
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}
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if acc1Val.VotingPower != acc1.Balance {
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t.Errorf("Unexpected voting power. Expected %v, got %v",
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acc1Val.VotingPower, acc1.Balance)
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}
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if acc1Val.Accum != 0 {
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t.Errorf("Unexpected accum. Expected 0, got %v",
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acc1Val.Accum)
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}
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}
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// TODO UnbondTx.
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// TODO NameTx.
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}
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