package types import ( "crypto/rand" "math" "testing" "time" "github.com/stretchr/testify/assert" "github.com/stretchr/testify/require" "github.com/tendermint/tendermint/crypto/tmhash" 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} testCases := []struct { testName string malleateBlock func(*Block) expErr bool }{ {"Make Block", func(blk *Block) {}, false}, {"Make Block w/ proposer Addr", func(blk *Block) { blk.ProposerAddress = valSet.GetProposer().Address }, false}, {"Increase NumTxs", func(blk *Block) { blk.NumTxs++ }, true}, {"Remove 1/2 the commits", func(blk *Block) { blk.LastCommit.Precommits = commit.Precommits[:commit.Size()/2] blk.LastCommit.hash = nil // clear hash or change wont be noticed }, true}, {"Remove LastCommitHash", func(blk *Block) { blk.LastCommitHash = []byte("something else") }, true}, {"Tampered Data", func(blk *Block) { blk.Data.Txs[0] = Tx("something else") blk.Data.hash = nil // clear hash or change wont be noticed }, true}, {"Tampered DataHash", func(blk *Block) { blk.DataHash = cmn.RandBytes(len(blk.DataHash)) }, true}, {"Tampered EvidenceHash", func(blk *Block) { blk.EvidenceHash = []byte("something else") }, true}, } for _, tc := range testCases { t.Run(tc.testName, func(t *testing.T) { block := MakeBlock(h, txs, commit, evList) tc.malleateBlock(block) assert.Equal(t, tc.expErr, block.ValidateBasic() != nil, "Validate Basic had an unexpected result") }) } } 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)) 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, []Tx{Tx("Hello World")}, commit, evList).MakePartSet(1024) assert.NotNil(t, partSet) assert.Equal(t, 2, 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 := make([]byte, tmhash.Size) partSetHash := make([]byte, tmhash.Size) rand.Read(blockHash) rand.Read(partSetHash) blockPartsHeader := PartSetHeader{123, partSetHash} return BlockID{blockHash, blockPartsHeader} } func makeBlockID(hash []byte, partSetSize int, partSetHash []byte) BlockID { return BlockID{ Hash: hash, PartsHeader: PartSetHeader{ Total: partSetSize, Hash: 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) { testCases := []struct { testName string malleateCommit func(*Commit) expectErr bool }{ {"Random Commit", func(com *Commit) {}, false}, {"Nil precommit", func(com *Commit) { com.Precommits[0] = nil }, false}, {"Incorrect signature", func(com *Commit) { com.Precommits[0].Signature = []byte{0} }, false}, {"Incorrect type", func(com *Commit) { com.Precommits[0].Type = VoteTypePrevote }, true}, {"Incorrect height", func(com *Commit) { com.Precommits[0].Height = int64(100) }, true}, {"Incorrect round", func(com *Commit) { com.Precommits[0].Round = 100 }, true}, } for _, tc := range testCases { t.Run(tc.testName, func(t *testing.T) { com := randCommit() tc.malleateCommit(com) assert.Equal(t, tc.expectErr, com.ValidateBasic() != nil, "Validate Basic had an unexpected result") }) } } func TestMaxHeaderBytes(t *testing.T) { // Construct a UTF-8 string of MaxChainIDLen length using the supplementary // characters. // Each supplementary character takes 4 bytes. // http://www.i18nguy.com/unicode/supplementary-test.html maxChainID := "" for i := 0; i < MaxChainIDLen; i++ { maxChainID += "𠜎" } h := Header{ ChainID: maxChainID, Height: math.MaxInt64, Time: time.Now().UTC(), NumTxs: math.MaxInt64, TotalTxs: math.MaxInt64, LastBlockID: makeBlockID(make([]byte, tmhash.Size), math.MaxInt64, make([]byte, tmhash.Size)), LastCommitHash: tmhash.Sum([]byte("last_commit_hash")), DataHash: tmhash.Sum([]byte("data_hash")), ValidatorsHash: tmhash.Sum([]byte("validators_hash")), NextValidatorsHash: tmhash.Sum([]byte("next_validators_hash")), ConsensusHash: tmhash.Sum([]byte("consensus_hash")), AppHash: tmhash.Sum([]byte("app_hash")), LastResultsHash: tmhash.Sum([]byte("last_results_hash")), EvidenceHash: tmhash.Sum([]byte("evidence_hash")), ProposerAddress: tmhash.Sum([]byte("proposer_address")), } bz, err := cdc.MarshalBinary(h) require.NoError(t, err) assert.EqualValues(t, MaxHeaderBytes, len(bz)) } 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 } func TestBlockMaxDataBytes(t *testing.T) { testCases := []struct { maxBytes int64 valsCount int evidenceCount int panics bool result int64 }{ 0: {-10, 1, 0, true, 0}, 1: {10, 1, 0, true, 0}, 2: {721, 1, 0, true, 0}, 3: {722, 1, 0, false, 0}, 4: {723, 1, 0, false, 1}, } for i, tc := range testCases { if tc.panics { assert.Panics(t, func() { MaxDataBytes(tc.maxBytes, tc.valsCount, tc.evidenceCount) }, "#%v", i) } else { assert.Equal(t, tc.result, MaxDataBytes(tc.maxBytes, tc.valsCount, tc.evidenceCount), "#%v", i) } } } func TestBlockMaxDataBytesUnknownEvidence(t *testing.T) { testCases := []struct { maxBytes int64 valsCount int panics bool result int64 }{ 0: {-10, 1, true, 0}, 1: {10, 1, true, 0}, 2: {801, 1, true, 0}, 3: {802, 1, false, 0}, 4: {803, 1, false, 1}, } for i, tc := range testCases { if tc.panics { assert.Panics(t, func() { MaxDataBytesUnknownEvidence(tc.maxBytes, tc.valsCount) }, "#%v", i) } else { assert.Equal(t, tc.result, MaxDataBytesUnknownEvidence(tc.maxBytes, tc.valsCount), "#%v", i) } } }