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252 lines
7.0 KiB
252 lines
7.0 KiB
package evidence
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import (
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"os"
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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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dbm "github.com/tendermint/tm-db"
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sm "github.com/tendermint/tendermint/state"
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"github.com/tendermint/tendermint/store"
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"github.com/tendermint/tendermint/types"
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tmtime "github.com/tendermint/tendermint/types/time"
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)
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func TestMain(m *testing.M) {
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RegisterMockEvidences()
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code := m.Run()
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os.Exit(code)
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}
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func TestEvidencePool(t *testing.T) {
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var (
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valAddr = []byte("val1")
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height = int64(52)
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stateDB = initializeValidatorState(valAddr, height)
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evidenceDB = dbm.NewMemDB()
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blockStoreDB = dbm.NewMemDB()
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blockStore = initializeBlockStore(blockStoreDB, sm.LoadState(stateDB), valAddr)
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evidenceTime = time.Date(2019, 1, 1, 0, 0, 0, 0, time.UTC)
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goodEvidence = types.NewMockEvidence(height, time.Now(), 0, valAddr)
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badEvidence = types.NewMockEvidence(1, evidenceTime, 0, valAddr)
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)
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pool, err := NewPool(stateDB, evidenceDB, blockStore)
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require.NoError(t, err)
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// bad evidence
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err = pool.AddEvidence(badEvidence)
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if assert.Error(t, err) {
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assert.Contains(t, err.Error(), "is too old; min height is 32 and evidence can not be older than")
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}
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// good evidence
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evAdded := make(chan struct{})
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go func() {
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<-pool.EvidenceWaitChan()
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close(evAdded)
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}()
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err = pool.AddEvidence(goodEvidence)
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require.NoError(t, err)
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select {
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case <-evAdded:
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case <-time.After(5 * time.Second):
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t.Fatal("evidence was not added after 5s")
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}
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assert.Equal(t, 1, pool.evidenceList.Len())
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// if we send it again, it shouldnt add and return an error
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err = pool.AddEvidence(goodEvidence)
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assert.Error(t, err)
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assert.Equal(t, 1, pool.evidenceList.Len())
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}
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func TestEvidencePoolIsCommitted(t *testing.T) {
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var (
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valAddr = []byte("validator_address")
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height = int64(1)
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lastBlockTime = time.Now()
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stateDB = initializeValidatorState(valAddr, height)
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evidenceDB = dbm.NewMemDB()
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blockStoreDB = dbm.NewMemDB()
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blockStore = initializeBlockStore(blockStoreDB, sm.LoadState(stateDB), valAddr)
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)
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pool, err := NewPool(stateDB, evidenceDB, blockStore)
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require.NoError(t, err)
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// evidence not seen yet:
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evidence := types.NewMockEvidence(height, time.Now(), 0, valAddr)
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assert.False(t, pool.IsCommitted(evidence))
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// evidence seen but not yet committed:
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assert.NoError(t, pool.AddEvidence(evidence))
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assert.False(t, pool.IsCommitted(evidence))
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// evidence seen and committed:
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pool.MarkEvidenceAsCommitted(height, lastBlockTime, []types.Evidence{evidence})
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assert.True(t, pool.IsCommitted(evidence))
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}
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func TestEvidencePoolAddEvidence(t *testing.T) {
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var (
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valAddr = []byte("val1")
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height = int64(30)
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stateDB = initializeValidatorState(valAddr, height)
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evidenceDB = dbm.NewMemDB()
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blockStoreDB = dbm.NewMemDB()
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blockStore = initializeBlockStore(blockStoreDB, sm.LoadState(stateDB), valAddr)
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evidenceTime = time.Date(2019, 1, 1, 0, 0, 0, 0, time.UTC)
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)
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pool, err := NewPool(stateDB, evidenceDB, blockStore)
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require.NoError(t, err)
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testCases := []struct {
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evHeight int64
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evTime time.Time
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expErr bool
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evDescription string
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}{
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{height, time.Now(), false, "valid evidence"},
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{height, evidenceTime, false, "valid evidence (despite old time)"},
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{int64(1), time.Now(), false, "valid evidence (despite old height)"},
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{int64(1), evidenceTime, true,
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"evidence from height 1 (created at: 2019-01-01 00:00:00 +0000 UTC) is too old"},
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}
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for _, tc := range testCases {
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tc := tc
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t.Run(tc.evDescription, func(t *testing.T) {
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ev := types.NewMockEvidence(tc.evHeight, tc.evTime, 0, valAddr)
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err := pool.AddEvidence(ev)
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if tc.expErr {
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assert.Error(t, err)
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t.Log(err)
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}
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})
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}
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}
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func TestEvidencePoolUpdate(t *testing.T) {
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var (
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valAddr = []byte("validator_address")
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height = int64(1)
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stateDB = initializeValidatorState(valAddr, height)
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evidenceDB = dbm.NewMemDB()
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blockStoreDB = dbm.NewMemDB()
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state = sm.LoadState(stateDB)
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blockStore = initializeBlockStore(blockStoreDB, state, valAddr)
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)
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pool, err := NewPool(stateDB, evidenceDB, blockStore)
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require.NoError(t, err)
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// create new block (no need to save it to blockStore)
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evidence := types.NewMockEvidence(height, time.Now(), 0, valAddr)
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lastCommit := makeCommit(height, valAddr)
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block := types.MakeBlock(height+1, []types.Tx{}, lastCommit, []types.Evidence{evidence})
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// update state (partially)
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state.LastBlockHeight = height + 1
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pool.Update(block, state)
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// a) Update marks evidence as committed
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assert.True(t, pool.IsCommitted(evidence))
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// b) Update updates valToLastHeight map
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assert.Equal(t, height+1, pool.ValidatorLastHeight(valAddr))
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}
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func TestEvidencePoolNewPool(t *testing.T) {
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var (
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valAddr = []byte("validator_address")
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height = int64(1)
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stateDB = initializeValidatorState(valAddr, height)
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evidenceDB = dbm.NewMemDB()
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blockStoreDB = dbm.NewMemDB()
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state = sm.LoadState(stateDB)
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blockStore = initializeBlockStore(blockStoreDB, state, valAddr)
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)
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pool, err := NewPool(stateDB, evidenceDB, blockStore)
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require.NoError(t, err)
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assert.Equal(t, height, pool.ValidatorLastHeight(valAddr))
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assert.EqualValues(t, 0, pool.ValidatorLastHeight([]byte("non-existent-validator")))
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}
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func initializeValidatorState(valAddr []byte, height int64) dbm.DB {
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stateDB := dbm.NewMemDB()
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// create validator set and state
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valSet := &types.ValidatorSet{
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Validators: []*types.Validator{
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{Address: valAddr, VotingPower: 0},
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},
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}
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state := sm.State{
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LastBlockHeight: height,
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LastBlockTime: tmtime.Now(),
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LastValidators: valSet,
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Validators: valSet,
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NextValidators: valSet.CopyIncrementProposerPriority(1),
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LastHeightValidatorsChanged: 1,
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ConsensusParams: types.ConsensusParams{
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Block: types.BlockParams{
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MaxBytes: 22020096,
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MaxGas: -1,
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},
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Evidence: types.EvidenceParams{
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MaxAgeNumBlocks: 20,
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MaxAgeDuration: 48 * time.Hour,
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},
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},
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}
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// save all states up to height
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for i := int64(0); i <= height; i++ {
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state.LastBlockHeight = i
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sm.SaveState(stateDB, state)
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}
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return stateDB
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}
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// initializeBlockStore creates a block storage and populates it w/ a dummy
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// block at +height+.
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func initializeBlockStore(db dbm.DB, state sm.State, valAddr []byte) *store.BlockStore {
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blockStore := store.NewBlockStore(db)
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for i := int64(1); i <= state.LastBlockHeight; i++ {
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lastCommit := makeCommit(i-1, valAddr)
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block, _ := state.MakeBlock(i, []types.Tx{}, lastCommit, nil,
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state.Validators.GetProposer().Address)
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const parts = 1
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partSet := block.MakePartSet(parts)
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seenCommit := makeCommit(i, valAddr)
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blockStore.SaveBlock(block, partSet, seenCommit)
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}
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return blockStore
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}
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func makeCommit(height int64, valAddr []byte) *types.Commit {
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commitSigs := []types.CommitSig{{
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BlockIDFlag: types.BlockIDFlagCommit,
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ValidatorAddress: valAddr,
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Timestamp: time.Now(),
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Signature: []byte("Signature"),
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}}
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return types.NewCommit(height, 0, types.BlockID{}, commitSigs)
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}
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