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package types
import (
"testing"
"github.com/stretchr/testify/assert"
cmn "github.com/tendermint/tmlibs/common"
)
type voteData struct {
vote1 *Vote
vote2 *Vote
valid bool
}
func makeVote(val *PrivValidatorFS, chainID string, valIndex, height, round, step int, blockID BlockID) *Vote {
v := &Vote{
ValidatorAddress: val.PubKey.Address(),
ValidatorIndex: valIndex,
Height: height,
Round: round,
Type: byte(step),
BlockID: blockID,
}
sig := val.PrivKey.Sign(SignBytes(chainID, v))
v.Signature = sig
return v
}
func makeBlockID(hash string, partSetSize int, partSetHash string) BlockID {
return BlockID{
Hash: []byte(hash),
PartsHeader: PartSetHeader{
Total: partSetSize,
Hash: []byte(partSetHash),
},
}
}
func TestEvidence(t *testing.T) {
_, tmpFilePath := cmn.Tempfile("priv_validator_")
val := GenPrivValidatorFS(tmpFilePath)
val2 := GenPrivValidatorFS(tmpFilePath)
blockID := makeBlockID("blockhash", 1000, "partshash")
blockID2 := makeBlockID("blockhash2", 1000, "partshash")
blockID3 := makeBlockID("blockhash", 10000, "partshash")
blockID4 := makeBlockID("blockhash", 10000, "partshash2")
chainID := "mychain"
vote1 := makeVote(val, chainID, 0, 10, 2, 1, blockID)
badVote := makeVote(val, chainID, 0, 10, 2, 1, blockID)
badVote.Signature = val2.PrivKey.Sign(SignBytes(chainID, badVote))
cases := []voteData{
{vote1, makeVote(val, chainID, 0, 10, 2, 1, blockID2), true}, // different block ids
{vote1, makeVote(val, chainID, 0, 10, 2, 1, blockID3), true},
{vote1, makeVote(val, chainID, 0, 10, 2, 1, blockID4), true},
{vote1, makeVote(val, chainID, 0, 10, 2, 1, blockID), false}, // wrong block id
{vote1, makeVote(val, "mychain2", 0, 10, 2, 1, blockID2), false}, // wrong chain id
{vote1, makeVote(val, chainID, 1, 10, 2, 1, blockID2), false}, // wrong val index
{vote1, makeVote(val, chainID, 0, 11, 2, 1, blockID2), false}, // wrong height
{vote1, makeVote(val, chainID, 0, 10, 3, 1, blockID2), false}, // wrong round
{vote1, makeVote(val, chainID, 0, 10, 2, 2, blockID2), false}, // wrong step
{vote1, makeVote(val2, chainID, 0, 10, 2, 1, blockID), false}, // wrong validator
{vote1, badVote, false}, // signed by wrong key
}
for _, c := range cases {
ev := &DuplicateVoteEvidence{
PubKey: val.PubKey,
VoteA: c.vote1,
VoteB: c.vote2,
}
if c.valid {
assert.Nil(t, ev.Verify(chainID), "evidence should be valid")
} else {
assert.NotNil(t, ev.Verify(chainID), "evidence should be invalid")
}
}
}