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1016 lines
37 KiB
1016 lines
37 KiB
package state_test
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import (
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"bytes"
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"fmt"
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"math"
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"math/big"
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"os"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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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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"github.com/tendermint/tendermint/libs/kv"
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"github.com/tendermint/tendermint/libs/rand"
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sm "github.com/tendermint/tendermint/state"
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dbm "github.com/tendermint/tm-db"
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cfg "github.com/tendermint/tendermint/config"
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"github.com/tendermint/tendermint/types"
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)
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// setupTestCase does setup common to all test cases.
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func setupTestCase(t *testing.T) (func(t *testing.T), dbm.DB, sm.State) {
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config := cfg.ResetTestRoot("state_")
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dbType := dbm.BackendType(config.DBBackend)
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stateDB := dbm.NewDB("state", dbType, config.DBDir())
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state, err := sm.LoadStateFromDBOrGenesisFile(stateDB, config.GenesisFile())
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assert.NoError(t, err, "expected no error on LoadStateFromDBOrGenesisFile")
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tearDown := func(t *testing.T) { os.RemoveAll(config.RootDir) }
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return tearDown, stateDB, state
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}
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// TestStateCopy tests the correct copying behaviour of State.
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func TestStateCopy(t *testing.T) {
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tearDown, _, state := setupTestCase(t)
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defer tearDown(t)
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assert := assert.New(t)
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stateCopy := state.Copy()
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assert.True(state.Equals(stateCopy),
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fmt.Sprintf("expected state and its copy to be identical.\ngot: %v\nexpected: %v\n",
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stateCopy, state))
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stateCopy.LastBlockHeight++
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assert.False(state.Equals(stateCopy), fmt.Sprintf(`expected states to be different. got same
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%v`, state))
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}
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//TestMakeGenesisStateNilValidators tests state's consistency when genesis file's validators field is nil.
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func TestMakeGenesisStateNilValidators(t *testing.T) {
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doc := types.GenesisDoc{
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ChainID: "dummy",
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Validators: nil,
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}
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require.Nil(t, doc.ValidateAndComplete())
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state, err := sm.MakeGenesisState(&doc)
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require.Nil(t, err)
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require.Equal(t, 0, len(state.Validators.Validators))
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require.Equal(t, 0, len(state.NextValidators.Validators))
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}
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// TestStateSaveLoad tests saving and loading State from a db.
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func TestStateSaveLoad(t *testing.T) {
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tearDown, stateDB, state := setupTestCase(t)
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defer tearDown(t)
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assert := assert.New(t)
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state.LastBlockHeight++
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sm.SaveState(stateDB, state)
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loadedState := sm.LoadState(stateDB)
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assert.True(state.Equals(loadedState),
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fmt.Sprintf("expected state and its copy to be identical.\ngot: %v\nexpected: %v\n",
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loadedState, state))
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}
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// TestABCIResponsesSaveLoad tests saving and loading ABCIResponses.
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func TestABCIResponsesSaveLoad1(t *testing.T) {
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tearDown, stateDB, state := setupTestCase(t)
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defer tearDown(t)
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assert := assert.New(t)
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state.LastBlockHeight++
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// Build mock responses.
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block := makeBlock(state, 2)
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abciResponses := sm.NewABCIResponses(block)
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abciResponses.DeliverTxs[0] = &abci.ResponseDeliverTx{Data: []byte("foo"), Events: nil}
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abciResponses.DeliverTxs[1] = &abci.ResponseDeliverTx{Data: []byte("bar"), Log: "ok", Events: nil}
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abciResponses.EndBlock = &abci.ResponseEndBlock{ValidatorUpdates: []abci.ValidatorUpdate{
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types.TM2PB.NewValidatorUpdate(ed25519.GenPrivKey().PubKey(), 10),
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}}
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sm.SaveABCIResponses(stateDB, block.Height, abciResponses)
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loadedABCIResponses, err := sm.LoadABCIResponses(stateDB, block.Height)
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assert.Nil(err)
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assert.Equal(abciResponses, loadedABCIResponses,
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fmt.Sprintf("ABCIResponses don't match:\ngot: %v\nexpected: %v\n",
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loadedABCIResponses, abciResponses))
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}
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// TestResultsSaveLoad tests saving and loading ABCI results.
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func TestABCIResponsesSaveLoad2(t *testing.T) {
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tearDown, stateDB, _ := setupTestCase(t)
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defer tearDown(t)
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assert := assert.New(t)
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cases := [...]struct {
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// Height is implied to equal index+2,
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// as block 1 is created from genesis.
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added []*abci.ResponseDeliverTx
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expected types.ABCIResults
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}{
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0: {
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nil,
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nil,
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},
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1: {
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[]*abci.ResponseDeliverTx{
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{Code: 32, Data: []byte("Hello"), Log: "Huh?"},
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},
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types.ABCIResults{
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{Code: 32, Data: []byte("Hello")},
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}},
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2: {
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[]*abci.ResponseDeliverTx{
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{Code: 383},
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{
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Data: []byte("Gotcha!"),
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Events: []abci.Event{
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{Type: "type1", Attributes: []kv.Pair{{Key: []byte("a"), Value: []byte("1")}}},
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{Type: "type2", Attributes: []kv.Pair{{Key: []byte("build"), Value: []byte("stuff")}}},
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},
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},
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},
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types.ABCIResults{
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{Code: 383, Data: nil},
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{Code: 0, Data: []byte("Gotcha!")},
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}},
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3: {
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nil,
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nil,
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},
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}
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// Query all before, this should return error.
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for i := range cases {
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h := int64(i + 1)
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res, err := sm.LoadABCIResponses(stateDB, h)
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assert.Error(err, "%d: %#v", i, res)
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}
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// Add all cases.
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for i, tc := range cases {
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h := int64(i + 1) // last block height, one below what we save
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responses := &sm.ABCIResponses{
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DeliverTxs: tc.added,
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EndBlock: &abci.ResponseEndBlock{},
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}
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sm.SaveABCIResponses(stateDB, h, responses)
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}
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// Query all before, should return expected value.
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for i, tc := range cases {
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h := int64(i + 1)
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res, err := sm.LoadABCIResponses(stateDB, h)
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assert.NoError(err, "%d", i)
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assert.Equal(tc.expected.Hash(), res.ResultsHash(), "%d", i)
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}
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}
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// TestValidatorSimpleSaveLoad tests saving and loading validators.
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func TestValidatorSimpleSaveLoad(t *testing.T) {
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tearDown, stateDB, state := setupTestCase(t)
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defer tearDown(t)
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assert := assert.New(t)
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// Can't load anything for height 0.
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_, err := sm.LoadValidators(stateDB, 0)
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assert.IsType(sm.ErrNoValSetForHeight{}, err, "expected err at height 0")
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// Should be able to load for height 1.
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v, err := sm.LoadValidators(stateDB, 1)
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assert.Nil(err, "expected no err at height 1")
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assert.Equal(v.Hash(), state.Validators.Hash(), "expected validator hashes to match")
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// Should be able to load for height 2.
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v, err = sm.LoadValidators(stateDB, 2)
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assert.Nil(err, "expected no err at height 2")
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assert.Equal(v.Hash(), state.NextValidators.Hash(), "expected validator hashes to match")
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// Increment height, save; should be able to load for next & next next height.
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state.LastBlockHeight++
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nextHeight := state.LastBlockHeight + 1
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sm.SaveValidatorsInfo(stateDB, nextHeight+1, state.LastHeightValidatorsChanged, state.NextValidators)
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vp0, err := sm.LoadValidators(stateDB, nextHeight+0)
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assert.Nil(err, "expected no err")
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vp1, err := sm.LoadValidators(stateDB, nextHeight+1)
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assert.Nil(err, "expected no err")
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assert.Equal(vp0.Hash(), state.Validators.Hash(), "expected validator hashes to match")
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assert.Equal(vp1.Hash(), state.NextValidators.Hash(), "expected next validator hashes to match")
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}
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// TestValidatorChangesSaveLoad tests saving and loading a validator set with changes.
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func TestOneValidatorChangesSaveLoad(t *testing.T) {
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tearDown, stateDB, state := setupTestCase(t)
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defer tearDown(t)
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// Change vals at these heights.
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changeHeights := []int64{1, 2, 4, 5, 10, 15, 16, 17, 20}
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N := len(changeHeights)
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// Build the validator history by running updateState
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// with the right validator set for each height.
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highestHeight := changeHeights[N-1] + 5
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changeIndex := 0
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_, val := state.Validators.GetByIndex(0)
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power := val.VotingPower
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var err error
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var validatorUpdates []*types.Validator
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for i := int64(1); i < highestHeight; i++ {
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// When we get to a change height, use the next pubkey.
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if changeIndex < len(changeHeights) && i == changeHeights[changeIndex] {
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changeIndex++
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power++
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}
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header, blockID, responses := makeHeaderPartsResponsesValPowerChange(state, power)
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validatorUpdates, err = types.PB2TM.ValidatorUpdates(responses.EndBlock.ValidatorUpdates)
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require.NoError(t, err)
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state, err = sm.UpdateState(state, blockID, &header, responses, validatorUpdates)
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require.NoError(t, err)
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nextHeight := state.LastBlockHeight + 1
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sm.SaveValidatorsInfo(stateDB, nextHeight+1, state.LastHeightValidatorsChanged, state.NextValidators)
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}
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// On each height change, increment the power by one.
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testCases := make([]int64, highestHeight)
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changeIndex = 0
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power = val.VotingPower
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for i := int64(1); i < highestHeight+1; i++ {
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// We get to the height after a change height use the next pubkey (note
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// our counter starts at 0 this time).
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if changeIndex < len(changeHeights) && i == changeHeights[changeIndex]+1 {
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changeIndex++
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power++
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}
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testCases[i-1] = power
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}
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for i, power := range testCases {
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v, err := sm.LoadValidators(stateDB, int64(i+1+1)) // +1 because vset changes delayed by 1 block.
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assert.Nil(t, err, fmt.Sprintf("expected no err at height %d", i))
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assert.Equal(t, v.Size(), 1, "validator set size is greater than 1: %d", v.Size())
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_, val := v.GetByIndex(0)
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assert.Equal(t, val.VotingPower, power, fmt.Sprintf(`unexpected powerat
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height %d`, i))
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}
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}
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func TestProposerFrequency(t *testing.T) {
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// some explicit test cases
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testCases := []struct {
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powers []int64
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}{
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// 2 vals
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{[]int64{1, 1}},
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{[]int64{1, 2}},
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{[]int64{1, 100}},
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{[]int64{5, 5}},
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{[]int64{5, 100}},
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{[]int64{50, 50}},
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{[]int64{50, 100}},
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{[]int64{1, 1000}},
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// 3 vals
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{[]int64{1, 1, 1}},
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{[]int64{1, 2, 3}},
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{[]int64{1, 2, 3}},
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{[]int64{1, 1, 10}},
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{[]int64{1, 1, 100}},
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{[]int64{1, 10, 100}},
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{[]int64{1, 1, 1000}},
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{[]int64{1, 10, 1000}},
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{[]int64{1, 100, 1000}},
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// 4 vals
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{[]int64{1, 1, 1, 1}},
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{[]int64{1, 2, 3, 4}},
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{[]int64{1, 1, 1, 10}},
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{[]int64{1, 1, 1, 100}},
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{[]int64{1, 1, 1, 1000}},
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{[]int64{1, 1, 10, 100}},
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{[]int64{1, 1, 10, 1000}},
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{[]int64{1, 1, 100, 1000}},
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{[]int64{1, 10, 100, 1000}},
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}
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for caseNum, testCase := range testCases {
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// run each case 5 times to sample different
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// initial priorities
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for i := 0; i < 5; i++ {
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valSet := genValSetWithPowers(testCase.powers)
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testProposerFreq(t, caseNum, valSet)
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}
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}
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// some random test cases with up to 100 validators
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maxVals := 100
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maxPower := 1000
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nTestCases := 5
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for i := 0; i < nTestCases; i++ {
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N := rand.RandInt()%maxVals + 1
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vals := make([]*types.Validator, N)
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totalVotePower := int64(0)
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for j := 0; j < N; j++ {
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// make sure votePower > 0
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votePower := int64(rand.RandInt()%maxPower) + 1
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totalVotePower += votePower
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privVal := types.NewMockPV()
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pubKey := privVal.GetPubKey()
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val := types.NewValidator(pubKey, votePower)
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val.ProposerPriority = rand.RandInt64()
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vals[j] = val
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}
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valSet := types.NewValidatorSet(vals)
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valSet.RescalePriorities(totalVotePower)
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testProposerFreq(t, i, valSet)
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}
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}
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// new val set with given powers and random initial priorities
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func genValSetWithPowers(powers []int64) *types.ValidatorSet {
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size := len(powers)
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vals := make([]*types.Validator, size)
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totalVotePower := int64(0)
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for i := 0; i < size; i++ {
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totalVotePower += powers[i]
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val := types.NewValidator(ed25519.GenPrivKey().PubKey(), powers[i])
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val.ProposerPriority = rand.RandInt64()
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vals[i] = val
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}
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valSet := types.NewValidatorSet(vals)
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valSet.RescalePriorities(totalVotePower)
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return valSet
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}
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// test a proposer appears as frequently as expected
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func testProposerFreq(t *testing.T, caseNum int, valSet *types.ValidatorSet) {
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N := valSet.Size()
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totalPower := valSet.TotalVotingPower()
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// run the proposer selection and track frequencies
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runMult := 1
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runs := int(totalPower) * runMult
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freqs := make([]int, N)
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for i := 0; i < runs; i++ {
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prop := valSet.GetProposer()
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idx, _ := valSet.GetByAddress(prop.Address)
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freqs[idx]++
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valSet.IncrementProposerPriority(1)
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}
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// assert frequencies match expected (max off by 1)
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for i, freq := range freqs {
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_, val := valSet.GetByIndex(i)
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expectFreq := int(val.VotingPower) * runMult
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gotFreq := freq
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abs := int(math.Abs(float64(expectFreq - gotFreq)))
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// max bound on expected vs seen freq was proven
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// to be 1 for the 2 validator case in
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// https://github.com/cwgoes/tm-proposer-idris
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// and inferred to generalize to N-1
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bound := N - 1
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require.True(
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t,
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abs <= bound,
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fmt.Sprintf("Case %d val %d (%d): got %d, expected %d", caseNum, i, N, gotFreq, expectFreq),
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)
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}
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}
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// TestProposerPriorityDoesNotGetResetToZero assert that we preserve accum when calling updateState
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// see https://github.com/tendermint/tendermint/issues/2718
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func TestProposerPriorityDoesNotGetResetToZero(t *testing.T) {
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tearDown, _, state := setupTestCase(t)
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defer tearDown(t)
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val1VotingPower := int64(10)
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val1PubKey := ed25519.GenPrivKey().PubKey()
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val1 := &types.Validator{Address: val1PubKey.Address(), PubKey: val1PubKey, VotingPower: val1VotingPower}
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state.Validators = types.NewValidatorSet([]*types.Validator{val1})
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state.NextValidators = state.Validators
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// NewValidatorSet calls IncrementProposerPriority but uses on a copy of val1
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assert.EqualValues(t, 0, val1.ProposerPriority)
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block := makeBlock(state, state.LastBlockHeight+1)
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blockID := types.BlockID{Hash: block.Hash(), PartsHeader: block.MakePartSet(testPartSize).Header()}
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abciResponses := &sm.ABCIResponses{
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EndBlock: &abci.ResponseEndBlock{ValidatorUpdates: nil},
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}
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validatorUpdates, err := types.PB2TM.ValidatorUpdates(abciResponses.EndBlock.ValidatorUpdates)
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require.NoError(t, err)
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updatedState, err := sm.UpdateState(state, blockID, &block.Header, abciResponses, validatorUpdates)
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assert.NoError(t, err)
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curTotal := val1VotingPower
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// one increment step and one validator: 0 + power - total_power == 0
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assert.Equal(t, 0+val1VotingPower-curTotal, updatedState.NextValidators.Validators[0].ProposerPriority)
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// add a validator
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val2PubKey := ed25519.GenPrivKey().PubKey()
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val2VotingPower := int64(100)
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updateAddVal := abci.ValidatorUpdate{PubKey: types.TM2PB.PubKey(val2PubKey), Power: val2VotingPower}
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validatorUpdates, err = types.PB2TM.ValidatorUpdates([]abci.ValidatorUpdate{updateAddVal})
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assert.NoError(t, err)
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updatedState2, err := sm.UpdateState(updatedState, blockID, &block.Header, abciResponses, validatorUpdates)
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assert.NoError(t, err)
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require.Equal(t, len(updatedState2.NextValidators.Validators), 2)
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_, updatedVal1 := updatedState2.NextValidators.GetByAddress(val1PubKey.Address())
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_, addedVal2 := updatedState2.NextValidators.GetByAddress(val2PubKey.Address())
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// adding a validator should not lead to a ProposerPriority equal to zero (unless the combination of averaging and
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// incrementing would cause so; which is not the case here)
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// Steps from adding new validator:
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// 0 - val1 prio is 0, TVP after add:
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wantVal1Prio := int64(0)
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totalPowerAfter := val1VotingPower + val2VotingPower
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// 1. Add - Val2 should be initially added with (-123) =>
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wantVal2Prio := -(totalPowerAfter + (totalPowerAfter >> 3))
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// 2. Scale - noop
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// 3. Center - with avg, resulting val2:-61, val1:62
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avg := big.NewInt(0).Add(big.NewInt(wantVal1Prio), big.NewInt(wantVal2Prio))
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avg.Div(avg, big.NewInt(2))
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wantVal2Prio -= avg.Int64() // -61
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wantVal1Prio -= avg.Int64() // 62
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// 4. Steps from IncrementProposerPriority
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wantVal1Prio += val1VotingPower // 72
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wantVal2Prio += val2VotingPower // 39
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wantVal1Prio -= totalPowerAfter // -38 as val1 is proposer
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|
assert.Equal(t, wantVal1Prio, updatedVal1.ProposerPriority)
|
|
assert.Equal(t, wantVal2Prio, addedVal2.ProposerPriority)
|
|
|
|
// Updating a validator does not reset the ProposerPriority to zero:
|
|
// 1. Add - Val2 VotingPower change to 1 =>
|
|
updatedVotingPowVal2 := int64(1)
|
|
updateVal := abci.ValidatorUpdate{PubKey: types.TM2PB.PubKey(val2PubKey), Power: updatedVotingPowVal2}
|
|
validatorUpdates, err = types.PB2TM.ValidatorUpdates([]abci.ValidatorUpdate{updateVal})
|
|
assert.NoError(t, err)
|
|
|
|
// this will cause the diff of priorities (77)
|
|
// to be larger than threshold == 2*totalVotingPower (22):
|
|
updatedState3, err := sm.UpdateState(updatedState2, blockID, &block.Header, abciResponses, validatorUpdates)
|
|
assert.NoError(t, err)
|
|
|
|
require.Equal(t, len(updatedState3.NextValidators.Validators), 2)
|
|
_, prevVal1 := updatedState3.Validators.GetByAddress(val1PubKey.Address())
|
|
_, prevVal2 := updatedState3.Validators.GetByAddress(val2PubKey.Address())
|
|
_, updatedVal1 = updatedState3.NextValidators.GetByAddress(val1PubKey.Address())
|
|
_, updatedVal2 := updatedState3.NextValidators.GetByAddress(val2PubKey.Address())
|
|
|
|
// 2. Scale
|
|
// old prios: v1(10):-38, v2(1):39
|
|
wantVal1Prio = prevVal1.ProposerPriority
|
|
wantVal2Prio = prevVal2.ProposerPriority
|
|
// scale to diffMax = 22 = 2 * tvp, diff=39-(-38)=77
|
|
// new totalPower
|
|
totalPower := updatedVal1.VotingPower + updatedVal2.VotingPower
|
|
dist := wantVal2Prio - wantVal1Prio
|
|
// ratio := (dist + 2*totalPower - 1) / 2*totalPower = 98/22 = 4
|
|
ratio := (dist + 2*totalPower - 1) / (2 * totalPower)
|
|
// v1(10):-38/4, v2(1):39/4
|
|
wantVal1Prio /= ratio // -9
|
|
wantVal2Prio /= ratio // 9
|
|
|
|
// 3. Center - noop
|
|
// 4. IncrementProposerPriority() ->
|
|
// v1(10):-9+10, v2(1):9+1 -> v2 proposer so subsract tvp(11)
|
|
// v1(10):1, v2(1):-1
|
|
wantVal2Prio += updatedVal2.VotingPower // 10 -> prop
|
|
wantVal1Prio += updatedVal1.VotingPower // 1
|
|
wantVal2Prio -= totalPower // -1
|
|
|
|
assert.Equal(t, wantVal2Prio, updatedVal2.ProposerPriority)
|
|
assert.Equal(t, wantVal1Prio, updatedVal1.ProposerPriority)
|
|
}
|
|
|
|
func TestProposerPriorityProposerAlternates(t *testing.T) {
|
|
// Regression test that would fail if the inner workings of
|
|
// IncrementProposerPriority change.
|
|
// Additionally, make sure that same power validators alternate if both
|
|
// have the same voting power (and the 2nd was added later).
|
|
tearDown, _, state := setupTestCase(t)
|
|
defer tearDown(t)
|
|
val1VotingPower := int64(10)
|
|
val1PubKey := ed25519.GenPrivKey().PubKey()
|
|
val1 := &types.Validator{Address: val1PubKey.Address(), PubKey: val1PubKey, VotingPower: val1VotingPower}
|
|
|
|
// reset state validators to above validator
|
|
state.Validators = types.NewValidatorSet([]*types.Validator{val1})
|
|
state.NextValidators = state.Validators
|
|
// we only have one validator:
|
|
assert.Equal(t, val1PubKey.Address(), state.Validators.Proposer.Address)
|
|
|
|
block := makeBlock(state, state.LastBlockHeight+1)
|
|
blockID := types.BlockID{Hash: block.Hash(), PartsHeader: block.MakePartSet(testPartSize).Header()}
|
|
// no updates:
|
|
abciResponses := &sm.ABCIResponses{
|
|
EndBlock: &abci.ResponseEndBlock{ValidatorUpdates: nil},
|
|
}
|
|
validatorUpdates, err := types.PB2TM.ValidatorUpdates(abciResponses.EndBlock.ValidatorUpdates)
|
|
require.NoError(t, err)
|
|
|
|
updatedState, err := sm.UpdateState(state, blockID, &block.Header, abciResponses, validatorUpdates)
|
|
assert.NoError(t, err)
|
|
|
|
// 0 + 10 (initial prio) - 10 (avg) - 10 (mostest - total) = -10
|
|
totalPower := val1VotingPower
|
|
wantVal1Prio := 0 + val1VotingPower - totalPower
|
|
assert.Equal(t, wantVal1Prio, updatedState.NextValidators.Validators[0].ProposerPriority)
|
|
assert.Equal(t, val1PubKey.Address(), updatedState.NextValidators.Proposer.Address)
|
|
|
|
// add a validator with the same voting power as the first
|
|
val2PubKey := ed25519.GenPrivKey().PubKey()
|
|
updateAddVal := abci.ValidatorUpdate{PubKey: types.TM2PB.PubKey(val2PubKey), Power: val1VotingPower}
|
|
validatorUpdates, err = types.PB2TM.ValidatorUpdates([]abci.ValidatorUpdate{updateAddVal})
|
|
assert.NoError(t, err)
|
|
|
|
updatedState2, err := sm.UpdateState(updatedState, blockID, &block.Header, abciResponses, validatorUpdates)
|
|
assert.NoError(t, err)
|
|
|
|
require.Equal(t, len(updatedState2.NextValidators.Validators), 2)
|
|
assert.Equal(t, updatedState2.Validators, updatedState.NextValidators)
|
|
|
|
// val1 will still be proposer as val2 just got added:
|
|
assert.Equal(t, val1PubKey.Address(), updatedState.NextValidators.Proposer.Address)
|
|
assert.Equal(t, updatedState2.Validators.Proposer.Address, updatedState2.NextValidators.Proposer.Address)
|
|
assert.Equal(t, updatedState2.Validators.Proposer.Address, val1PubKey.Address())
|
|
assert.Equal(t, updatedState2.NextValidators.Proposer.Address, val1PubKey.Address())
|
|
|
|
_, updatedVal1 := updatedState2.NextValidators.GetByAddress(val1PubKey.Address())
|
|
_, oldVal1 := updatedState2.Validators.GetByAddress(val1PubKey.Address())
|
|
_, updatedVal2 := updatedState2.NextValidators.GetByAddress(val2PubKey.Address())
|
|
|
|
// 1. Add
|
|
val2VotingPower := val1VotingPower
|
|
totalPower = val1VotingPower + val2VotingPower // 20
|
|
v2PrioWhenAddedVal2 := -(totalPower + (totalPower >> 3)) // -22
|
|
// 2. Scale - noop
|
|
// 3. Center
|
|
avgSum := big.NewInt(0).Add(big.NewInt(v2PrioWhenAddedVal2), big.NewInt(oldVal1.ProposerPriority))
|
|
avg := avgSum.Div(avgSum, big.NewInt(2)) // -11
|
|
expectedVal2Prio := v2PrioWhenAddedVal2 - avg.Int64() // -11
|
|
expectedVal1Prio := oldVal1.ProposerPriority - avg.Int64() // 11
|
|
// 4. Increment
|
|
expectedVal2Prio += val2VotingPower // -11 + 10 = -1
|
|
expectedVal1Prio += val1VotingPower // 11 + 10 == 21
|
|
expectedVal1Prio -= totalPower // 1, val1 proposer
|
|
|
|
assert.EqualValues(t, expectedVal1Prio, updatedVal1.ProposerPriority)
|
|
assert.EqualValues(
|
|
t,
|
|
expectedVal2Prio,
|
|
updatedVal2.ProposerPriority,
|
|
"unexpected proposer priority for validator: %v",
|
|
updatedVal2,
|
|
)
|
|
|
|
validatorUpdates, err = types.PB2TM.ValidatorUpdates(abciResponses.EndBlock.ValidatorUpdates)
|
|
require.NoError(t, err)
|
|
|
|
updatedState3, err := sm.UpdateState(updatedState2, blockID, &block.Header, abciResponses, validatorUpdates)
|
|
assert.NoError(t, err)
|
|
|
|
assert.Equal(t, updatedState3.Validators.Proposer.Address, updatedState3.NextValidators.Proposer.Address)
|
|
|
|
assert.Equal(t, updatedState3.Validators, updatedState2.NextValidators)
|
|
_, updatedVal1 = updatedState3.NextValidators.GetByAddress(val1PubKey.Address())
|
|
_, updatedVal2 = updatedState3.NextValidators.GetByAddress(val2PubKey.Address())
|
|
|
|
// val1 will still be proposer:
|
|
assert.Equal(t, val1PubKey.Address(), updatedState3.NextValidators.Proposer.Address)
|
|
|
|
// check if expected proposer prio is matched:
|
|
// Increment
|
|
expectedVal2Prio2 := expectedVal2Prio + val2VotingPower // -1 + 10 = 9
|
|
expectedVal1Prio2 := expectedVal1Prio + val1VotingPower // 1 + 10 == 11
|
|
expectedVal1Prio2 -= totalPower // -9, val1 proposer
|
|
|
|
assert.EqualValues(
|
|
t,
|
|
expectedVal1Prio2,
|
|
updatedVal1.ProposerPriority,
|
|
"unexpected proposer priority for validator: %v",
|
|
updatedVal2,
|
|
)
|
|
assert.EqualValues(
|
|
t,
|
|
expectedVal2Prio2,
|
|
updatedVal2.ProposerPriority,
|
|
"unexpected proposer priority for validator: %v",
|
|
updatedVal2,
|
|
)
|
|
|
|
// no changes in voting power and both validators have same voting power
|
|
// -> proposers should alternate:
|
|
oldState := updatedState3
|
|
abciResponses = &sm.ABCIResponses{
|
|
EndBlock: &abci.ResponseEndBlock{ValidatorUpdates: nil},
|
|
}
|
|
validatorUpdates, err = types.PB2TM.ValidatorUpdates(abciResponses.EndBlock.ValidatorUpdates)
|
|
require.NoError(t, err)
|
|
|
|
oldState, err = sm.UpdateState(oldState, blockID, &block.Header, abciResponses, validatorUpdates)
|
|
assert.NoError(t, err)
|
|
expectedVal1Prio2 = 1
|
|
expectedVal2Prio2 = -1
|
|
expectedVal1Prio = -9
|
|
expectedVal2Prio = 9
|
|
|
|
for i := 0; i < 1000; i++ {
|
|
// no validator updates:
|
|
abciResponses := &sm.ABCIResponses{
|
|
EndBlock: &abci.ResponseEndBlock{ValidatorUpdates: nil},
|
|
}
|
|
validatorUpdates, err = types.PB2TM.ValidatorUpdates(abciResponses.EndBlock.ValidatorUpdates)
|
|
require.NoError(t, err)
|
|
|
|
updatedState, err := sm.UpdateState(oldState, blockID, &block.Header, abciResponses, validatorUpdates)
|
|
assert.NoError(t, err)
|
|
// alternate (and cyclic priorities):
|
|
assert.NotEqual(
|
|
t,
|
|
updatedState.Validators.Proposer.Address,
|
|
updatedState.NextValidators.Proposer.Address,
|
|
"iter: %v",
|
|
i,
|
|
)
|
|
assert.Equal(t, oldState.Validators.Proposer.Address, updatedState.NextValidators.Proposer.Address, "iter: %v", i)
|
|
|
|
_, updatedVal1 = updatedState.NextValidators.GetByAddress(val1PubKey.Address())
|
|
_, updatedVal2 = updatedState.NextValidators.GetByAddress(val2PubKey.Address())
|
|
|
|
if i%2 == 0 {
|
|
assert.Equal(t, updatedState.Validators.Proposer.Address, val2PubKey.Address())
|
|
assert.Equal(t, expectedVal1Prio, updatedVal1.ProposerPriority) // -19
|
|
assert.Equal(t, expectedVal2Prio, updatedVal2.ProposerPriority) // 0
|
|
} else {
|
|
assert.Equal(t, updatedState.Validators.Proposer.Address, val1PubKey.Address())
|
|
assert.Equal(t, expectedVal1Prio2, updatedVal1.ProposerPriority) // -9
|
|
assert.Equal(t, expectedVal2Prio2, updatedVal2.ProposerPriority) // -10
|
|
}
|
|
// update for next iteration:
|
|
oldState = updatedState
|
|
}
|
|
}
|
|
|
|
func TestLargeGenesisValidator(t *testing.T) {
|
|
tearDown, _, state := setupTestCase(t)
|
|
defer tearDown(t)
|
|
|
|
genesisVotingPower := types.MaxTotalVotingPower / 1000
|
|
genesisPubKey := ed25519.GenPrivKey().PubKey()
|
|
// fmt.Println("genesis addr: ", genesisPubKey.Address())
|
|
genesisVal := &types.Validator{
|
|
Address: genesisPubKey.Address(),
|
|
PubKey: genesisPubKey,
|
|
VotingPower: genesisVotingPower,
|
|
}
|
|
// reset state validators to above validator
|
|
state.Validators = types.NewValidatorSet([]*types.Validator{genesisVal})
|
|
state.NextValidators = state.Validators
|
|
require.True(t, len(state.Validators.Validators) == 1)
|
|
|
|
// update state a few times with no validator updates
|
|
// asserts that the single validator's ProposerPrio stays the same
|
|
oldState := state
|
|
for i := 0; i < 10; i++ {
|
|
// no updates:
|
|
abciResponses := &sm.ABCIResponses{
|
|
EndBlock: &abci.ResponseEndBlock{ValidatorUpdates: nil},
|
|
}
|
|
validatorUpdates, err := types.PB2TM.ValidatorUpdates(abciResponses.EndBlock.ValidatorUpdates)
|
|
require.NoError(t, err)
|
|
|
|
block := makeBlock(oldState, oldState.LastBlockHeight+1)
|
|
blockID := types.BlockID{Hash: block.Hash(), PartsHeader: block.MakePartSet(testPartSize).Header()}
|
|
|
|
updatedState, err := sm.UpdateState(oldState, blockID, &block.Header, abciResponses, validatorUpdates)
|
|
require.NoError(t, err)
|
|
// no changes in voting power (ProposerPrio += VotingPower == Voting in 1st round; than shiftByAvg == 0,
|
|
// than -Total == -Voting)
|
|
// -> no change in ProposerPrio (stays zero):
|
|
assert.EqualValues(t, oldState.NextValidators, updatedState.NextValidators)
|
|
assert.EqualValues(t, 0, updatedState.NextValidators.Proposer.ProposerPriority)
|
|
|
|
oldState = updatedState
|
|
}
|
|
// add another validator, do a few iterations (create blocks),
|
|
// add more validators with same voting power as the 2nd
|
|
// let the genesis validator "unbond",
|
|
// see how long it takes until the effect wears off and both begin to alternate
|
|
// see: https://github.com/tendermint/tendermint/issues/2960
|
|
firstAddedValPubKey := ed25519.GenPrivKey().PubKey()
|
|
firstAddedValVotingPower := int64(10)
|
|
firstAddedVal := abci.ValidatorUpdate{PubKey: types.TM2PB.PubKey(firstAddedValPubKey), Power: firstAddedValVotingPower}
|
|
validatorUpdates, err := types.PB2TM.ValidatorUpdates([]abci.ValidatorUpdate{firstAddedVal})
|
|
assert.NoError(t, err)
|
|
abciResponses := &sm.ABCIResponses{
|
|
EndBlock: &abci.ResponseEndBlock{ValidatorUpdates: []abci.ValidatorUpdate{firstAddedVal}},
|
|
}
|
|
block := makeBlock(oldState, oldState.LastBlockHeight+1)
|
|
blockID := types.BlockID{Hash: block.Hash(), PartsHeader: block.MakePartSet(testPartSize).Header()}
|
|
updatedState, err := sm.UpdateState(oldState, blockID, &block.Header, abciResponses, validatorUpdates)
|
|
require.NoError(t, err)
|
|
|
|
lastState := updatedState
|
|
for i := 0; i < 200; i++ {
|
|
// no updates:
|
|
abciResponses := &sm.ABCIResponses{
|
|
EndBlock: &abci.ResponseEndBlock{ValidatorUpdates: nil},
|
|
}
|
|
validatorUpdates, err := types.PB2TM.ValidatorUpdates(abciResponses.EndBlock.ValidatorUpdates)
|
|
require.NoError(t, err)
|
|
|
|
block := makeBlock(lastState, lastState.LastBlockHeight+1)
|
|
blockID := types.BlockID{Hash: block.Hash(), PartsHeader: block.MakePartSet(testPartSize).Header()}
|
|
|
|
updatedStateInner, err := sm.UpdateState(lastState, blockID, &block.Header, abciResponses, validatorUpdates)
|
|
require.NoError(t, err)
|
|
lastState = updatedStateInner
|
|
}
|
|
// set state to last state of above iteration
|
|
state = lastState
|
|
|
|
// set oldState to state before above iteration
|
|
oldState = updatedState
|
|
_, oldGenesisVal := oldState.NextValidators.GetByAddress(genesisVal.Address)
|
|
_, newGenesisVal := state.NextValidators.GetByAddress(genesisVal.Address)
|
|
_, addedOldVal := oldState.NextValidators.GetByAddress(firstAddedValPubKey.Address())
|
|
_, addedNewVal := state.NextValidators.GetByAddress(firstAddedValPubKey.Address())
|
|
// expect large negative proposer priority for both (genesis validator decreased, 2nd validator increased):
|
|
assert.True(t, oldGenesisVal.ProposerPriority > newGenesisVal.ProposerPriority)
|
|
assert.True(t, addedOldVal.ProposerPriority < addedNewVal.ProposerPriority)
|
|
|
|
// add 10 validators with the same voting power as the one added directly after genesis:
|
|
for i := 0; i < 10; i++ {
|
|
addedPubKey := ed25519.GenPrivKey().PubKey()
|
|
|
|
addedVal := abci.ValidatorUpdate{PubKey: types.TM2PB.PubKey(addedPubKey), Power: firstAddedValVotingPower}
|
|
validatorUpdates, err := types.PB2TM.ValidatorUpdates([]abci.ValidatorUpdate{addedVal})
|
|
assert.NoError(t, err)
|
|
|
|
abciResponses := &sm.ABCIResponses{
|
|
EndBlock: &abci.ResponseEndBlock{ValidatorUpdates: []abci.ValidatorUpdate{addedVal}},
|
|
}
|
|
block := makeBlock(oldState, oldState.LastBlockHeight+1)
|
|
blockID := types.BlockID{Hash: block.Hash(), PartsHeader: block.MakePartSet(testPartSize).Header()}
|
|
state, err = sm.UpdateState(state, blockID, &block.Header, abciResponses, validatorUpdates)
|
|
require.NoError(t, err)
|
|
}
|
|
require.Equal(t, 10+2, len(state.NextValidators.Validators))
|
|
|
|
// remove genesis validator:
|
|
removeGenesisVal := abci.ValidatorUpdate{PubKey: types.TM2PB.PubKey(genesisPubKey), Power: 0}
|
|
abciResponses = &sm.ABCIResponses{
|
|
EndBlock: &abci.ResponseEndBlock{ValidatorUpdates: []abci.ValidatorUpdate{removeGenesisVal}},
|
|
}
|
|
block = makeBlock(oldState, oldState.LastBlockHeight+1)
|
|
blockID = types.BlockID{Hash: block.Hash(), PartsHeader: block.MakePartSet(testPartSize).Header()}
|
|
validatorUpdates, err = types.PB2TM.ValidatorUpdates(abciResponses.EndBlock.ValidatorUpdates)
|
|
require.NoError(t, err)
|
|
updatedState, err = sm.UpdateState(state, blockID, &block.Header, abciResponses, validatorUpdates)
|
|
require.NoError(t, err)
|
|
// only the first added val (not the genesis val) should be left
|
|
assert.Equal(t, 11, len(updatedState.NextValidators.Validators))
|
|
|
|
// call update state until the effect for the 3rd added validator
|
|
// being proposer for a long time after the genesis validator left wears off:
|
|
curState := updatedState
|
|
count := 0
|
|
isProposerUnchanged := true
|
|
for isProposerUnchanged {
|
|
abciResponses := &sm.ABCIResponses{
|
|
EndBlock: &abci.ResponseEndBlock{ValidatorUpdates: nil},
|
|
}
|
|
validatorUpdates, err = types.PB2TM.ValidatorUpdates(abciResponses.EndBlock.ValidatorUpdates)
|
|
require.NoError(t, err)
|
|
block = makeBlock(curState, curState.LastBlockHeight+1)
|
|
blockID = types.BlockID{Hash: block.Hash(), PartsHeader: block.MakePartSet(testPartSize).Header()}
|
|
curState, err = sm.UpdateState(curState, blockID, &block.Header, abciResponses, validatorUpdates)
|
|
require.NoError(t, err)
|
|
if !bytes.Equal(curState.Validators.Proposer.Address, curState.NextValidators.Proposer.Address) {
|
|
isProposerUnchanged = false
|
|
}
|
|
count++
|
|
}
|
|
updatedState = curState
|
|
// the proposer changes after this number of blocks
|
|
firstProposerChangeExpectedAfter := 1
|
|
assert.Equal(t, firstProposerChangeExpectedAfter, count)
|
|
// store proposers here to see if we see them again in the same order:
|
|
numVals := len(updatedState.Validators.Validators)
|
|
proposers := make([]*types.Validator, numVals)
|
|
for i := 0; i < 100; i++ {
|
|
// no updates:
|
|
abciResponses := &sm.ABCIResponses{
|
|
EndBlock: &abci.ResponseEndBlock{ValidatorUpdates: nil},
|
|
}
|
|
validatorUpdates, err := types.PB2TM.ValidatorUpdates(abciResponses.EndBlock.ValidatorUpdates)
|
|
require.NoError(t, err)
|
|
|
|
block := makeBlock(updatedState, updatedState.LastBlockHeight+1)
|
|
blockID := types.BlockID{Hash: block.Hash(), PartsHeader: block.MakePartSet(testPartSize).Header()}
|
|
|
|
updatedState, err = sm.UpdateState(updatedState, blockID, &block.Header, abciResponses, validatorUpdates)
|
|
require.NoError(t, err)
|
|
if i > numVals { // expect proposers to cycle through after the first iteration (of numVals blocks):
|
|
if proposers[i%numVals] == nil {
|
|
proposers[i%numVals] = updatedState.NextValidators.Proposer
|
|
} else {
|
|
assert.Equal(t, proposers[i%numVals], updatedState.NextValidators.Proposer)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestStoreLoadValidatorsIncrementsProposerPriority(t *testing.T) {
|
|
const valSetSize = 2
|
|
tearDown, stateDB, state := setupTestCase(t)
|
|
defer tearDown(t)
|
|
state.Validators = genValSet(valSetSize)
|
|
state.NextValidators = state.Validators.CopyIncrementProposerPriority(1)
|
|
sm.SaveState(stateDB, state)
|
|
|
|
nextHeight := state.LastBlockHeight + 1
|
|
|
|
v0, err := sm.LoadValidators(stateDB, nextHeight)
|
|
assert.Nil(t, err)
|
|
acc0 := v0.Validators[0].ProposerPriority
|
|
|
|
v1, err := sm.LoadValidators(stateDB, nextHeight+1)
|
|
assert.Nil(t, err)
|
|
acc1 := v1.Validators[0].ProposerPriority
|
|
|
|
assert.NotEqual(t, acc1, acc0, "expected ProposerPriority value to change between heights")
|
|
}
|
|
|
|
// TestValidatorChangesSaveLoad tests saving and loading a validator set with
|
|
// changes.
|
|
func TestManyValidatorChangesSaveLoad(t *testing.T) {
|
|
const valSetSize = 7
|
|
tearDown, stateDB, state := setupTestCase(t)
|
|
defer tearDown(t)
|
|
require.Equal(t, int64(0), state.LastBlockHeight)
|
|
state.Validators = genValSet(valSetSize)
|
|
state.NextValidators = state.Validators.CopyIncrementProposerPriority(1)
|
|
sm.SaveState(stateDB, state)
|
|
|
|
_, valOld := state.Validators.GetByIndex(0)
|
|
var pubkeyOld = valOld.PubKey
|
|
pubkey := ed25519.GenPrivKey().PubKey()
|
|
|
|
// Swap the first validator with a new one (validator set size stays the same).
|
|
header, blockID, responses := makeHeaderPartsResponsesValPubKeyChange(state, pubkey)
|
|
|
|
// Save state etc.
|
|
var err error
|
|
var validatorUpdates []*types.Validator
|
|
validatorUpdates, err = types.PB2TM.ValidatorUpdates(responses.EndBlock.ValidatorUpdates)
|
|
require.NoError(t, err)
|
|
state, err = sm.UpdateState(state, blockID, &header, responses, validatorUpdates)
|
|
require.Nil(t, err)
|
|
nextHeight := state.LastBlockHeight + 1
|
|
sm.SaveValidatorsInfo(stateDB, nextHeight+1, state.LastHeightValidatorsChanged, state.NextValidators)
|
|
|
|
// Load nextheight, it should be the oldpubkey.
|
|
v0, err := sm.LoadValidators(stateDB, nextHeight)
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, valSetSize, v0.Size())
|
|
index, val := v0.GetByAddress(pubkeyOld.Address())
|
|
assert.NotNil(t, val)
|
|
if index < 0 {
|
|
t.Fatal("expected to find old validator")
|
|
}
|
|
|
|
// Load nextheight+1, it should be the new pubkey.
|
|
v1, err := sm.LoadValidators(stateDB, nextHeight+1)
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, valSetSize, v1.Size())
|
|
index, val = v1.GetByAddress(pubkey.Address())
|
|
assert.NotNil(t, val)
|
|
if index < 0 {
|
|
t.Fatal("expected to find newly added validator")
|
|
}
|
|
}
|
|
|
|
func TestStateMakeBlock(t *testing.T) {
|
|
tearDown, _, state := setupTestCase(t)
|
|
defer tearDown(t)
|
|
|
|
proposerAddress := state.Validators.GetProposer().Address
|
|
stateVersion := state.Version.Consensus
|
|
block := makeBlock(state, 2)
|
|
|
|
// test we set some fields
|
|
assert.Equal(t, stateVersion, block.Version)
|
|
assert.Equal(t, proposerAddress, block.ProposerAddress)
|
|
}
|
|
|
|
// TestConsensusParamsChangesSaveLoad tests saving and loading consensus params
|
|
// with changes.
|
|
func TestConsensusParamsChangesSaveLoad(t *testing.T) {
|
|
tearDown, stateDB, state := setupTestCase(t)
|
|
defer tearDown(t)
|
|
|
|
// Change vals at these heights.
|
|
changeHeights := []int64{1, 2, 4, 5, 10, 15, 16, 17, 20}
|
|
N := len(changeHeights)
|
|
|
|
// Each valset is just one validator.
|
|
// create list of them.
|
|
params := make([]types.ConsensusParams, N+1)
|
|
params[0] = state.ConsensusParams
|
|
for i := 1; i < N+1; i++ {
|
|
params[i] = *types.DefaultConsensusParams()
|
|
params[i].Block.MaxBytes += int64(i)
|
|
}
|
|
|
|
// Build the params history by running updateState
|
|
// with the right params set for each height.
|
|
highestHeight := changeHeights[N-1] + 5
|
|
changeIndex := 0
|
|
cp := params[changeIndex]
|
|
var err error
|
|
var validatorUpdates []*types.Validator
|
|
for i := int64(1); i < highestHeight; i++ {
|
|
// When we get to a change height, use the next params.
|
|
if changeIndex < len(changeHeights) && i == changeHeights[changeIndex] {
|
|
changeIndex++
|
|
cp = params[changeIndex]
|
|
}
|
|
header, blockID, responses := makeHeaderPartsResponsesParams(state, cp)
|
|
validatorUpdates, err = types.PB2TM.ValidatorUpdates(responses.EndBlock.ValidatorUpdates)
|
|
require.NoError(t, err)
|
|
state, err = sm.UpdateState(state, blockID, &header, responses, validatorUpdates)
|
|
|
|
require.Nil(t, err)
|
|
nextHeight := state.LastBlockHeight + 1
|
|
sm.SaveConsensusParamsInfo(stateDB, nextHeight, state.LastHeightConsensusParamsChanged, state.ConsensusParams)
|
|
}
|
|
|
|
// Make all the test cases by using the same params until after the change.
|
|
testCases := make([]paramsChangeTestCase, highestHeight)
|
|
changeIndex = 0
|
|
cp = params[changeIndex]
|
|
for i := int64(1); i < highestHeight+1; i++ {
|
|
// We get to the height after a change height use the next pubkey (note
|
|
// our counter starts at 0 this time).
|
|
if changeIndex < len(changeHeights) && i == changeHeights[changeIndex]+1 {
|
|
changeIndex++
|
|
cp = params[changeIndex]
|
|
}
|
|
testCases[i-1] = paramsChangeTestCase{i, cp}
|
|
}
|
|
|
|
for _, testCase := range testCases {
|
|
p, err := sm.LoadConsensusParams(stateDB, testCase.height)
|
|
assert.Nil(t, err, fmt.Sprintf("expected no err at height %d", testCase.height))
|
|
assert.Equal(t, testCase.params, p, fmt.Sprintf(`unexpected consensus params at
|
|
height %d`, testCase.height))
|
|
}
|
|
}
|
|
|
|
func TestApplyUpdates(t *testing.T) {
|
|
initParams := makeConsensusParams(1, 2, 3, 4)
|
|
|
|
cases := [...]struct {
|
|
init types.ConsensusParams
|
|
updates abci.ConsensusParams
|
|
expected types.ConsensusParams
|
|
}{
|
|
0: {initParams, abci.ConsensusParams{}, initParams},
|
|
1: {initParams, abci.ConsensusParams{}, initParams},
|
|
2: {initParams,
|
|
abci.ConsensusParams{
|
|
Block: &abci.BlockParams{
|
|
MaxBytes: 44,
|
|
MaxGas: 55,
|
|
},
|
|
},
|
|
makeConsensusParams(44, 55, 3, 4)},
|
|
3: {initParams,
|
|
abci.ConsensusParams{
|
|
Evidence: &abci.EvidenceParams{
|
|
MaxAge: 66,
|
|
},
|
|
},
|
|
makeConsensusParams(1, 2, 3, 66)},
|
|
}
|
|
|
|
for i, tc := range cases {
|
|
res := tc.init.Update(&(tc.updates))
|
|
assert.Equal(t, tc.expected, res, "case %d", i)
|
|
}
|
|
}
|