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package types
import (
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/tendermint/tendermint/crypto"
cmn "github.com/tendermint/tendermint/libs/common"
)
func TestBlockAddEvidence(t *testing.T) {
txs := []Tx{Tx("foo"), Tx("bar")}
lastID := makeBlockIDRandom()
h := int64(3)
voteSet, valSet, vals := randVoteSet(h-1, 1, VoteTypePrecommit, 10, 1)
commit, err := MakeCommit(lastID, h-1, 1, voteSet, vals)
require.NoError(t, err)
ev := NewMockGoodEvidence(h, 0, valSet.Validators[0].Address)
evList := []Evidence{ev}
block := MakeBlock(h, txs, commit, evList)
require.NotNil(t, block)
require.Equal(t, 1, len(block.Evidence.Evidence))
require.NotNil(t, block.EvidenceHash)
}
func TestBlockValidateBasic(t *testing.T) {
require.Error(t, (*Block)(nil).ValidateBasic())
txs := []Tx{Tx("foo"), Tx("bar")}
lastID := makeBlockIDRandom()
h := int64(3)
voteSet, valSet, vals := randVoteSet(h-1, 1, VoteTypePrecommit, 10, 1)
commit, err := MakeCommit(lastID, h-1, 1, voteSet, vals)
require.NoError(t, err)
ev := NewMockGoodEvidence(h, 0, valSet.Validators[0].Address)
evList := []Evidence{ev}
block := MakeBlock(h, txs, commit, evList)
require.NotNil(t, block)
// proper block must pass
err = block.ValidateBasic()
require.NoError(t, err)
// tamper with NumTxs
block = MakeBlock(h, txs, commit, evList)
block.NumTxs++
err = block.ValidateBasic()
require.Error(t, err)
// remove 1/2 the commits
block = MakeBlock(h, txs, commit, evList)
block.LastCommit.Precommits = commit.Precommits[:commit.Size()/2]
block.LastCommit.hash = nil // clear hash or change wont be noticed
err = block.ValidateBasic()
require.Error(t, err)
// tamper with LastCommitHash
block = MakeBlock(h, txs, commit, evList)
block.LastCommitHash = []byte("something else")
err = block.ValidateBasic()
require.Error(t, err)
// tamper with data
block = MakeBlock(h, txs, commit, evList)
block.Data.Txs[0] = Tx("something else")
block.Data.hash = nil // clear hash or change wont be noticed
err = block.ValidateBasic()
require.Error(t, err)
// tamper with DataHash
block = MakeBlock(h, txs, commit, evList)
block.DataHash = cmn.RandBytes(len(block.DataHash))
err = block.ValidateBasic()
require.Error(t, err)
// tamper with evidence
block = MakeBlock(h, txs, commit, evList)
block.EvidenceHash = []byte("something else")
err = block.ValidateBasic()
require.Error(t, err)
}
func TestBlockHash(t *testing.T) {
assert.Nil(t, (*Block)(nil).Hash())
assert.Nil(t, MakeBlock(int64(3), []Tx{Tx("Hello World")}, nil, nil).Hash())
}
func TestBlockMakePartSet(t *testing.T) {
assert.Nil(t, (*Block)(nil).MakePartSet(2))
partSet := MakeBlock(int64(3), []Tx{Tx("Hello World")}, nil, nil).MakePartSet(1024)
assert.NotNil(t, partSet)
assert.Equal(t, 1, partSet.Total())
}
func TestBlockMakePartSetWithEvidence(t *testing.T) {
assert.Nil(t, (*Block)(nil).MakePartSet(2))
txs := []Tx{Tx("foo"), Tx("bar")}
lastID := makeBlockIDRandom()
h := int64(3)
voteSet, valSet, vals := randVoteSet(h-1, 1, VoteTypePrecommit, 10, 1)
commit, err := MakeCommit(lastID, h-1, 1, voteSet, vals)
require.NoError(t, err)
ev := NewMockGoodEvidence(h, 0, valSet.Validators[0].Address)
evList := []Evidence{ev}
partSet := MakeBlock(h, txs, commit, evList).MakePartSet(1024)
assert.NotNil(t, partSet)
assert.Equal(t, 3, partSet.Total())
}
func TestBlockHashesTo(t *testing.T) {
assert.False(t, (*Block)(nil).HashesTo(nil))
lastID := makeBlockIDRandom()
h := int64(3)
voteSet, valSet, vals := randVoteSet(h-1, 1, VoteTypePrecommit, 10, 1)
commit, err := MakeCommit(lastID, h-1, 1, voteSet, vals)
require.NoError(t, err)
ev := NewMockGoodEvidence(h, 0, valSet.Validators[0].Address)
evList := []Evidence{ev}
block := MakeBlock(h, []Tx{Tx("Hello World")}, commit, evList)
block.ValidatorsHash = valSet.Hash()
assert.False(t, block.HashesTo([]byte{}))
assert.False(t, block.HashesTo([]byte("something else")))
assert.True(t, block.HashesTo(block.Hash()))
}
func TestBlockSize(t *testing.T) {
size := MakeBlock(int64(3), []Tx{Tx("Hello World")}, nil, nil).Size()
if size <= 0 {
t.Fatal("Size of the block is zero or negative")
}
}
func TestBlockString(t *testing.T) {
assert.Equal(t, "nil-Block", (*Block)(nil).String())
assert.Equal(t, "nil-Block", (*Block)(nil).StringIndented(""))
assert.Equal(t, "nil-Block", (*Block)(nil).StringShort())
block := MakeBlock(int64(3), []Tx{Tx("Hello World")}, nil, nil)
assert.NotEqual(t, "nil-Block", block.String())
assert.NotEqual(t, "nil-Block", block.StringIndented(""))
assert.NotEqual(t, "nil-Block", block.StringShort())
}
func makeBlockIDRandom() BlockID {
blockHash, blockPartsHeader := crypto.CRandBytes(32), PartSetHeader{123, crypto.CRandBytes(32)}
return BlockID{blockHash, blockPartsHeader}
}
func makeBlockID(hash string, partSetSize int, partSetHash string) BlockID {
return BlockID{
Hash: []byte(hash),
PartsHeader: PartSetHeader{
Total: partSetSize,
Hash: []byte(partSetHash),
},
}
}
var nilBytes []byte
func TestNilHeaderHashDoesntCrash(t *testing.T) {
assert.Equal(t, []byte((*Header)(nil).Hash()), nilBytes)
assert.Equal(t, []byte((new(Header)).Hash()), nilBytes)
}
func TestNilDataHashDoesntCrash(t *testing.T) {
assert.Equal(t, []byte((*Data)(nil).Hash()), nilBytes)
assert.Equal(t, []byte(new(Data).Hash()), nilBytes)
}
func TestCommit(t *testing.T) {
lastID := makeBlockIDRandom()
h := int64(3)
voteSet, _, vals := randVoteSet(h-1, 1, VoteTypePrecommit, 10, 1)
commit, err := MakeCommit(lastID, h-1, 1, voteSet, vals)
require.NoError(t, err)
assert.NotNil(t, commit.FirstPrecommit())
assert.Equal(t, h-1, commit.Height())
assert.Equal(t, 1, commit.Round())
assert.Equal(t, VoteTypePrecommit, commit.Type())
if commit.Size() <= 0 {
t.Fatalf("commit %v has a zero or negative size: %d", commit, commit.Size())
}
require.NotNil(t, commit.BitArray())
assert.Equal(t, cmn.NewBitArray(10).Size(), commit.BitArray().Size())
assert.Equal(t, voteSet.GetByIndex(0), commit.GetByIndex(0))
assert.True(t, commit.IsCommit())
}
func TestCommitValidateBasic(t *testing.T) {
commit := randCommit()
assert.NoError(t, commit.ValidateBasic())
// nil precommit is OK
commit = randCommit()
commit.Precommits[0] = nil
assert.NoError(t, commit.ValidateBasic())
// tamper with types
commit = randCommit()
commit.Precommits[0].Type = VoteTypePrevote
assert.Error(t, commit.ValidateBasic())
// tamper with height
commit = randCommit()
commit.Precommits[0].Height = int64(100)
assert.Error(t, commit.ValidateBasic())
// tamper with round
commit = randCommit()
commit.Precommits[0].Round = 100
assert.Error(t, commit.ValidateBasic())
}
func randCommit() *Commit {
lastID := makeBlockIDRandom()
h := int64(3)
voteSet, _, vals := randVoteSet(h-1, 1, VoteTypePrecommit, 10, 1)
commit, err := MakeCommit(lastID, h-1, 1, voteSet, vals)
if err != nil {
panic(err)
}
return commit
}