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373 lines
11 KiB
373 lines
11 KiB
package state
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import (
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"context"
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"fmt"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"github.com/tendermint/tendermint/abci/example/kvstore"
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abci "github.com/tendermint/tendermint/abci/types"
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"github.com/tendermint/tendermint/crypto/ed25519"
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cmn "github.com/tendermint/tendermint/libs/common"
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dbm "github.com/tendermint/tendermint/libs/db"
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"github.com/tendermint/tendermint/libs/log"
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"github.com/tendermint/tendermint/proxy"
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"github.com/tendermint/tendermint/types"
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)
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var (
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chainID = "execution_chain"
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testPartSize = 65536
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nTxsPerBlock = 10
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)
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func TestApplyBlock(t *testing.T) {
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cc := proxy.NewLocalClientCreator(kvstore.NewKVStoreApplication())
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proxyApp := proxy.NewAppConns(cc, nil)
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err := proxyApp.Start()
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require.Nil(t, err)
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defer proxyApp.Stop()
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state, stateDB := state(1, 1)
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blockExec := NewBlockExecutor(stateDB, log.TestingLogger(), proxyApp.Consensus(),
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MockMempool{}, MockEvidencePool{})
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block := makeBlock(state, 1)
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blockID := types.BlockID{block.Hash(), block.MakePartSet(testPartSize).Header()}
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state, err = blockExec.ApplyBlock(state, blockID, block)
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require.Nil(t, err)
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// TODO check state and mempool
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}
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// TestBeginBlockValidators ensures we send absent validators list.
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func TestBeginBlockValidators(t *testing.T) {
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app := &testApp{}
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cc := proxy.NewLocalClientCreator(app)
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proxyApp := proxy.NewAppConns(cc, nil)
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err := proxyApp.Start()
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require.Nil(t, err)
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defer proxyApp.Stop()
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state, stateDB := state(2, 2)
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prevHash := state.LastBlockID.Hash
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prevParts := types.PartSetHeader{}
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prevBlockID := types.BlockID{prevHash, prevParts}
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now := time.Now().UTC()
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vote0 := &types.Vote{ValidatorIndex: 0, Timestamp: now, Type: types.VoteTypePrecommit}
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vote1 := &types.Vote{ValidatorIndex: 1, Timestamp: now}
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testCases := []struct {
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desc string
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lastCommitPrecommits []*types.Vote
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expectedAbsentValidators []int
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}{
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{"none absent", []*types.Vote{vote0, vote1}, []int{}},
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{"one absent", []*types.Vote{vote0, nil}, []int{1}},
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{"multiple absent", []*types.Vote{nil, nil}, []int{0, 1}},
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}
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for _, tc := range testCases {
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lastCommit := &types.Commit{BlockID: prevBlockID, Precommits: tc.lastCommitPrecommits}
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// block for height 2
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block, _ := state.MakeBlock(2, makeTxs(2), lastCommit, nil, state.Validators.GetProposer().Address)
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_, err = ExecCommitBlock(proxyApp.Consensus(), block, log.TestingLogger(), state.Validators, stateDB)
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require.Nil(t, err, tc.desc)
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// -> app receives a list of validators with a bool indicating if they signed
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ctr := 0
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for i, v := range app.Validators {
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if ctr < len(tc.expectedAbsentValidators) &&
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tc.expectedAbsentValidators[ctr] == i {
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assert.False(t, v.SignedLastBlock)
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ctr++
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} else {
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assert.True(t, v.SignedLastBlock)
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}
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}
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}
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}
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// TestBeginBlockByzantineValidators ensures we send byzantine validators list.
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func TestBeginBlockByzantineValidators(t *testing.T) {
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app := &testApp{}
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cc := proxy.NewLocalClientCreator(app)
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proxyApp := proxy.NewAppConns(cc, nil)
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err := proxyApp.Start()
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require.Nil(t, err)
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defer proxyApp.Stop()
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state, stateDB := state(2, 12)
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prevHash := state.LastBlockID.Hash
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prevParts := types.PartSetHeader{}
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prevBlockID := types.BlockID{prevHash, prevParts}
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height1, idx1, val1 := int64(8), 0, state.Validators.Validators[0].Address
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height2, idx2, val2 := int64(3), 1, state.Validators.Validators[1].Address
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ev1 := types.NewMockGoodEvidence(height1, idx1, val1)
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ev2 := types.NewMockGoodEvidence(height2, idx2, val2)
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now := time.Now()
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valSet := state.Validators
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testCases := []struct {
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desc string
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evidence []types.Evidence
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expectedByzantineValidators []abci.Evidence
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}{
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{"none byzantine", []types.Evidence{}, []abci.Evidence{}},
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{"one byzantine", []types.Evidence{ev1}, []abci.Evidence{types.TM2PB.Evidence(ev1, valSet, now)}},
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{"multiple byzantine", []types.Evidence{ev1, ev2}, []abci.Evidence{
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types.TM2PB.Evidence(ev1, valSet, now),
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types.TM2PB.Evidence(ev2, valSet, now)}},
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}
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vote0 := &types.Vote{ValidatorIndex: 0, Timestamp: now, Type: types.VoteTypePrecommit}
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vote1 := &types.Vote{ValidatorIndex: 1, Timestamp: now}
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votes := []*types.Vote{vote0, vote1}
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lastCommit := &types.Commit{BlockID: prevBlockID, Precommits: votes}
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for _, tc := range testCases {
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block, _ := state.MakeBlock(10, makeTxs(2), lastCommit, nil, state.Validators.GetProposer().Address)
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block.Time = now
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block.Evidence.Evidence = tc.evidence
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_, err = ExecCommitBlock(proxyApp.Consensus(), block, log.TestingLogger(), state.Validators, stateDB)
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require.Nil(t, err, tc.desc)
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// -> app must receive an index of the byzantine validator
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assert.Equal(t, tc.expectedByzantineValidators, app.ByzantineValidators, tc.desc)
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}
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}
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func TestUpdateValidators(t *testing.T) {
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pubkey1 := ed25519.GenPrivKey().PubKey()
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val1 := types.NewValidator(pubkey1, 10)
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pubkey2 := ed25519.GenPrivKey().PubKey()
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val2 := types.NewValidator(pubkey2, 20)
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testCases := []struct {
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name string
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currentSet *types.ValidatorSet
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abciUpdates []abci.Validator
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resultingSet *types.ValidatorSet
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shouldErr bool
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}{
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{
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"adding a validator is OK",
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types.NewValidatorSet([]*types.Validator{val1}),
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[]abci.Validator{{Address: []byte{}, PubKey: types.TM2PB.PubKey(pubkey2), Power: 20}},
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types.NewValidatorSet([]*types.Validator{val1, val2}),
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false,
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},
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{
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"updating a validator is OK",
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types.NewValidatorSet([]*types.Validator{val1}),
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[]abci.Validator{{Address: []byte{}, PubKey: types.TM2PB.PubKey(pubkey1), Power: 20}},
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types.NewValidatorSet([]*types.Validator{types.NewValidator(pubkey1, 20)}),
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false,
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},
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{
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"removing a validator is OK",
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types.NewValidatorSet([]*types.Validator{val1, val2}),
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[]abci.Validator{{Address: []byte{}, PubKey: types.TM2PB.PubKey(pubkey2), Power: 0}},
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types.NewValidatorSet([]*types.Validator{val1}),
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false,
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},
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{
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"removing a non-existing validator results in error",
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types.NewValidatorSet([]*types.Validator{val1}),
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[]abci.Validator{{Address: []byte{}, PubKey: types.TM2PB.PubKey(pubkey2), Power: 0}},
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types.NewValidatorSet([]*types.Validator{val1}),
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true,
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},
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{
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"adding a validator with negative power results in error",
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types.NewValidatorSet([]*types.Validator{val1}),
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[]abci.Validator{{Address: []byte{}, PubKey: types.TM2PB.PubKey(pubkey2), Power: -100}},
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types.NewValidatorSet([]*types.Validator{val1}),
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true,
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},
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}
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for _, tc := range testCases {
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t.Run(tc.name, func(t *testing.T) {
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err := updateValidators(tc.currentSet, tc.abciUpdates)
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if tc.shouldErr {
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assert.Error(t, err)
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} else {
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require.Equal(t, tc.resultingSet.Size(), tc.currentSet.Size())
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assert.Equal(t, tc.resultingSet.TotalVotingPower(), tc.currentSet.TotalVotingPower())
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assert.Equal(t, tc.resultingSet.Validators[0].Address, tc.currentSet.Validators[0].Address)
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if tc.resultingSet.Size() > 1 {
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assert.Equal(t, tc.resultingSet.Validators[1].Address, tc.currentSet.Validators[1].Address)
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}
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}
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})
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}
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}
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// TestEndBlockValidatorUpdates ensures we update validator set and send an event.
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func TestEndBlockValidatorUpdates(t *testing.T) {
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app := &testApp{}
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cc := proxy.NewLocalClientCreator(app)
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proxyApp := proxy.NewAppConns(cc, nil)
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err := proxyApp.Start()
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require.Nil(t, err)
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defer proxyApp.Stop()
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state, stateDB := state(1, 1)
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blockExec := NewBlockExecutor(stateDB, log.TestingLogger(), proxyApp.Consensus(),
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MockMempool{}, MockEvidencePool{})
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eventBus := types.NewEventBus()
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err = eventBus.Start()
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require.NoError(t, err)
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defer eventBus.Stop()
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blockExec.SetEventBus(eventBus)
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updatesCh := make(chan interface{}, 1)
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err = eventBus.Subscribe(context.Background(), "TestEndBlockValidatorUpdates", types.EventQueryValidatorSetUpdates, updatesCh)
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require.NoError(t, err)
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block := makeBlock(state, 1)
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blockID := types.BlockID{block.Hash(), block.MakePartSet(testPartSize).Header()}
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pubkey := ed25519.GenPrivKey().PubKey()
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app.ValidatorUpdates = []abci.Validator{
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{PubKey: types.TM2PB.PubKey(pubkey), Power: 10},
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}
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state, err = blockExec.ApplyBlock(state, blockID, block)
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require.Nil(t, err)
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// test new validator was added to NextValidators
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if assert.Equal(t, state.Validators.Size()+1, state.NextValidators.Size()) {
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idx, _ := state.NextValidators.GetByAddress(pubkey.Address())
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if idx < 0 {
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t.Fatalf("can't find address %v in the set %v", pubkey.Address(), state.NextValidators)
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}
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}
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// test we threw an event
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select {
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case e := <-updatesCh:
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event, ok := e.(types.EventDataValidatorSetUpdates)
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require.True(t, ok, "Expected event of type EventDataValidatorSetUpdates, got %T", e)
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if assert.NotEmpty(t, event.ValidatorUpdates) {
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assert.Equal(t, pubkey, event.ValidatorUpdates[0].PubKey)
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assert.EqualValues(t, 10, event.ValidatorUpdates[0].VotingPower)
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}
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case <-time.After(1 * time.Second):
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t.Fatal("Did not receive EventValidatorSetUpdates within 1 sec.")
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}
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}
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//----------------------------------------------------------------------------
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// make some bogus txs
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func makeTxs(height int64) (txs []types.Tx) {
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for i := 0; i < nTxsPerBlock; i++ {
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txs = append(txs, types.Tx([]byte{byte(height), byte(i)}))
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}
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return txs
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}
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func state(nVals, height int) (State, dbm.DB) {
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vals := make([]types.GenesisValidator, nVals)
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for i := 0; i < nVals; i++ {
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secret := []byte(fmt.Sprintf("test%d", i))
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pk := ed25519.GenPrivKeyFromSecret(secret)
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vals[i] = types.GenesisValidator{
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pk.PubKey(), 1000, fmt.Sprintf("test%d", i),
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}
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}
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s, _ := MakeGenesisState(&types.GenesisDoc{
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ChainID: chainID,
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Validators: vals,
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AppHash: nil,
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})
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// save validators to db for 2 heights
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stateDB := dbm.NewMemDB()
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SaveState(stateDB, s)
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for i := 1; i < height; i++ {
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s.LastBlockHeight++
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SaveState(stateDB, s)
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}
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return s, stateDB
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}
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func makeBlock(state State, height int64) *types.Block {
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block, _ := state.MakeBlock(height, makeTxs(state.LastBlockHeight), new(types.Commit), nil, state.Validators.GetProposer().Address)
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return block
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}
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//----------------------------------------------------------------------------
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type testApp struct {
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abci.BaseApplication
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Validators []abci.SigningValidator
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ByzantineValidators []abci.Evidence
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ValidatorUpdates []abci.Validator
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}
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var _ abci.Application = (*testApp)(nil)
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func (app *testApp) Info(req abci.RequestInfo) (resInfo abci.ResponseInfo) {
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return abci.ResponseInfo{}
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}
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func (app *testApp) BeginBlock(req abci.RequestBeginBlock) abci.ResponseBeginBlock {
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app.Validators = req.LastCommitInfo.Validators
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app.ByzantineValidators = req.ByzantineValidators
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return abci.ResponseBeginBlock{}
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}
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func (app *testApp) EndBlock(req abci.RequestEndBlock) abci.ResponseEndBlock {
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return abci.ResponseEndBlock{ValidatorUpdates: app.ValidatorUpdates}
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}
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func (app *testApp) DeliverTx(tx []byte) abci.ResponseDeliverTx {
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return abci.ResponseDeliverTx{Tags: []cmn.KVPair{}}
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}
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func (app *testApp) CheckTx(tx []byte) abci.ResponseCheckTx {
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return abci.ResponseCheckTx{}
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}
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func (app *testApp) Commit() abci.ResponseCommit {
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return abci.ResponseCommit{}
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}
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func (app *testApp) Query(reqQuery abci.RequestQuery) (resQuery abci.ResponseQuery) {
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return
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}
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