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192 lines
4.8 KiB
192 lines
4.8 KiB
package consensus
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import (
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. "github.com/tendermint/tendermint/blocks"
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. "github.com/tendermint/tendermint/common"
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"bytes"
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"testing"
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)
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// NOTE: see consensus/test.go for common test methods.
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func TestVerifyVotes(t *testing.T) {
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_, valSet, privAccounts := makeVoteSet(0, 0, 10, 1)
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// Make a POL with -2/3 votes.
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blockHash := RandBytes(32)
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pol := &POL{
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Height: 0, Round: 0, BlockHash: blockHash,
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}
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vote := &Vote{
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Height: 0, Round: 0, Type: VoteTypePrevote, BlockHash: blockHash,
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}
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for i := 0; i < 6; i++ {
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privAccounts[i].Sign(vote)
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pol.Votes = append(pol.Votes, vote.Signature)
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}
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// Check that validation fails.
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if err := pol.Verify(valSet); err == nil {
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t.Errorf("Expected POL.Verify() to fail, not enough votes.")
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}
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// Make a POL with +2/3 votes.
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privAccounts[7].Sign(vote)
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pol.Votes = append(pol.Votes, vote.Signature)
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// Check that validation succeeds.
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if err := pol.Verify(valSet); err != nil {
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t.Errorf("Expected POL.Verify() to succeed")
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}
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}
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func TestVerifyInvalidVote(t *testing.T) {
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_, valSet, privAccounts := makeVoteSet(0, 0, 10, 1)
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// Make a POL with +2/3 votes with the wrong signature.
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blockHash := RandBytes(32)
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pol := &POL{
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Height: 0, Round: 0, BlockHash: blockHash,
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}
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vote := &Vote{
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Height: 0, Round: 0, Type: VoteTypePrevote, BlockHash: blockHash,
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}
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for i := 0; i < 7; i++ {
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privAccounts[i].Sign(vote)
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// Mutate the signature.
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vote.Signature.Bytes[0] += byte(0x01)
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pol.Votes = append(pol.Votes, vote.Signature)
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}
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// Check that validation fails.
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if err := pol.Verify(valSet); err == nil {
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t.Errorf("Expected POL.Verify() to fail, wrong signatures.")
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}
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}
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func TestVerifyCommits(t *testing.T) {
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_, valSet, privAccounts := makeVoteSet(0, 2, 10, 1)
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// Make a POL with +2/3 votes.
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blockHash := RandBytes(32)
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pol := &POL{
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Height: 0, Round: 2, BlockHash: blockHash,
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}
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vote := &Vote{
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Height: 0, Round: 1, Type: VoteTypeCommit, BlockHash: blockHash,
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}
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for i := 0; i < 7; i++ {
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privAccounts[i].Sign(vote)
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pol.Commits = append(pol.Commits, RoundSignature{1, vote.Signature})
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}
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// Check that validation succeeds.
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if err := pol.Verify(valSet); err != nil {
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t.Errorf("Expected POL.Verify() to succeed")
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}
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}
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func TestVerifyInvalidCommits(t *testing.T) {
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_, valSet, privAccounts := makeVoteSet(0, 2, 10, 1)
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// Make a POL with +2/3 votes with the wrong signature.
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blockHash := RandBytes(32)
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pol := &POL{
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Height: 0, Round: 2, BlockHash: blockHash,
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}
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vote := &Vote{
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Height: 0, Round: 1, Type: VoteTypeCommit, BlockHash: blockHash,
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}
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for i := 0; i < 7; i++ {
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privAccounts[i].Sign(vote)
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// Mutate the signature.
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vote.Signature.Bytes[0] += byte(0x01)
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pol.Commits = append(pol.Commits, RoundSignature{1, vote.Signature})
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}
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// Check that validation fails.
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if err := pol.Verify(valSet); err == nil {
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t.Errorf("Expected POL.Verify() to fail, wrong signatures.")
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}
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}
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func TestVerifyInvalidCommitRounds(t *testing.T) {
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_, valSet, privAccounts := makeVoteSet(0, 2, 10, 1)
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// Make a POL with +2/3 commits for the current round.
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blockHash := RandBytes(32)
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pol := &POL{
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Height: 0, Round: 2, BlockHash: blockHash,
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}
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vote := &Vote{
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Height: 0, Round: 2, Type: VoteTypeCommit, BlockHash: blockHash,
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}
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for i := 0; i < 7; i++ {
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privAccounts[i].Sign(vote)
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pol.Commits = append(pol.Commits, RoundSignature{2, vote.Signature})
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}
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// Check that validation fails.
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if err := pol.Verify(valSet); err == nil {
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t.Errorf("Expected POL.Verify() to fail, same round.")
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}
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}
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func TestVerifyInvalidCommitRounds2(t *testing.T) {
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_, valSet, privAccounts := makeVoteSet(0, 2, 10, 1)
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// Make a POL with +2/3 commits for future round.
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blockHash := RandBytes(32)
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pol := &POL{
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Height: 0, Round: 2, BlockHash: blockHash,
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}
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vote := &Vote{
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Height: 0, Round: 3, Type: VoteTypeCommit, BlockHash: blockHash,
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}
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for i := 0; i < 7; i++ {
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privAccounts[i].Sign(vote)
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pol.Commits = append(pol.Commits, RoundSignature{3, vote.Signature})
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}
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// Check that validation fails.
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if err := pol.Verify(valSet); err == nil {
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t.Errorf("Expected POL.Verify() to fail, future round.")
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}
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}
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func TestReadWrite(t *testing.T) {
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_, valSet, privAccounts := makeVoteSet(0, 0, 10, 1)
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// Make a POL with +2/3 votes.
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blockHash := RandBytes(32)
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pol := &POL{
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Height: 0, Round: 0, BlockHash: blockHash,
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}
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vote := &Vote{
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Height: 0, Round: 0, Type: VoteTypePrevote, BlockHash: blockHash,
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}
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for i := 0; i < 7; i++ {
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privAccounts[i].Sign(vote)
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pol.Votes = append(pol.Votes, vote.Signature)
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}
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// Write it to a buffer.
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buf := new(bytes.Buffer)
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_, err := pol.WriteTo(buf)
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if err != nil {
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t.Fatalf("Failed to write POL")
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}
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// Read from buffer.
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var n int64
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pol2 := ReadPOL(buf, &n, &err)
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if err != nil {
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t.Fatalf("Failed to read POL")
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}
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// Check that validation succeeds.
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if err := pol2.Verify(valSet); err != nil {
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t.Errorf("Expected POL.Verify() to succeed")
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}
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}
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