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package state
import (
"testing"
"time"
"github.com/stretchr/testify/require"
"github.com/tendermint/tendermint/crypto/ed25519"
"github.com/tendermint/tendermint/crypto/tmhash"
"github.com/tendermint/tendermint/libs/log"
"github.com/tendermint/tendermint/types"
)
// TODO(#2589):
// - generalize this past the first height
// - add txs and build up full State properly
// - test block.Time (see #2587 - there are no conditions on time for the first height)
func TestValidateBlockHeader(t *testing.T) {
var height int64 = 1 // TODO(#2589): generalize
state, stateDB := state(1, int(height))
blockExec := NewBlockExecutor(stateDB, log.TestingLogger(), nil, nil, nil)
// A good block passes.
block := makeBlock(state, height)
err := blockExec.ValidateBlock(state, block)
require.NoError(t, err)
wrongHash := tmhash.Sum([]byte("this hash is wrong"))
// Manipulation of any header field causes failure.
testCases := []struct {
name string
malleateBlock func(block *types.Block)
}{
{"ChainID wrong", func(block *types.Block) { block.ChainID = "not-the-real-one" }},
{"Height wrong", func(block *types.Block) { block.Height += 10 }},
{"Time wrong", func(block *types.Block) { block.Time = block.Time.Add(-time.Second * 3600 * 24) }},
{"NumTxs wrong", func(block *types.Block) { block.NumTxs += 10 }},
{"TotalTxs wrong", func(block *types.Block) { block.TotalTxs += 10 }},
{"LastBlockID wrong", func(block *types.Block) { block.LastBlockID.PartsHeader.Total += 10 }},
{"LastCommitHash wrong", func(block *types.Block) { block.LastCommitHash = wrongHash }},
{"DataHash wrong", func(block *types.Block) { block.DataHash = wrongHash }},
{"ValidatorsHash wrong", func(block *types.Block) { block.ValidatorsHash = wrongHash }},
{"NextValidatorsHash wrong", func(block *types.Block) { block.NextValidatorsHash = wrongHash }},
{"ConsensusHash wrong", func(block *types.Block) { block.ConsensusHash = wrongHash }},
{"AppHash wrong", func(block *types.Block) { block.AppHash = wrongHash }},
{"LastResultsHash wrong", func(block *types.Block) { block.LastResultsHash = wrongHash }},
{"EvidenceHash wrong", func(block *types.Block) { block.EvidenceHash = wrongHash }},
{"Proposer wrong", func(block *types.Block) { block.ProposerAddress = ed25519.GenPrivKey().PubKey().Address() }},
{"Proposer invalid", func(block *types.Block) { block.ProposerAddress = []byte("wrong size") }},
}
for _, tc := range testCases {
block := makeBlock(state, height)
tc.malleateBlock(block)
err := blockExec.ValidateBlock(state, block)
require.Error(t, err, tc.name)
}
}
/*
TODO(#2589):
- test Block.Data.Hash() == Block.DataHash
- test len(Block.Data.Txs) == Block.NumTxs
*/
func TestValidateBlockData(t *testing.T) {
}
/*
TODO(#2589):
- test len(block.LastCommit.Precommits) == state.LastValidators.Size()
- test state.LastValidators.VerifyCommit
*/
func TestValidateBlockCommit(t *testing.T) {
}
/*
TODO(#2589):
- test good/bad evidence in block
*/
func TestValidateBlockEvidence(t *testing.T) {
var height int64 = 1 // TODO(#2589): generalize
state, stateDB := state(1, int(height))
blockExec := NewBlockExecutor(stateDB, log.TestingLogger(), nil, nil, nil)
// make some evidence
addr, _ := state.Validators.GetByIndex(0)
goodEvidence := types.NewMockGoodEvidence(height, 0, addr)
// A block with a couple pieces of evidence passes.
block := makeBlock(state, height)
block.Evidence.Evidence = []types.Evidence{goodEvidence, goodEvidence}
block.EvidenceHash = block.Evidence.Hash()
err := blockExec.ValidateBlock(state, block)
require.NoError(t, err)
// A block with too much evidence fails.
maxBlockSize := state.ConsensusParams.BlockSize.MaxBytes
maxEvidenceBytes := types.MaxEvidenceBytesPerBlock(maxBlockSize)
maxEvidence := maxEvidenceBytes / types.MaxEvidenceBytes
require.True(t, maxEvidence > 2)
for i := int64(0); i < maxEvidence; i++ {
block.Evidence.Evidence = append(block.Evidence.Evidence, goodEvidence)
}
block.EvidenceHash = block.Evidence.Hash()
err = blockExec.ValidateBlock(state, block)
require.Error(t, err)
_, ok := err.(*types.ErrEvidenceOverflow)
require.True(t, ok)
}
/*
TODO(#2589):
- test unmarshalling BlockParts that are too big into a Block that
(note this logic happens in the consensus, not in the validation here).
- test making blocks from the types.MaxXXX functions works/fails as expected
*/
func TestValidateBlockSize(t *testing.T) {
}