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package evidence
import (
"os"
"sync"
"testing"
"github.com/stretchr/testify/assert"
dbm "github.com/tendermint/tendermint/libs/db"
sm "github.com/tendermint/tendermint/state"
"github.com/tendermint/tendermint/types"
tmtime "github.com/tendermint/tendermint/types/time"
)
func TestMain(m *testing.M) {
types.RegisterMockEvidences(cdc)
code := m.Run()
os.Exit(code)
}
func initializeValidatorState(valAddr []byte, height int64) dbm.DB {
stateDB := dbm.NewMemDB()
// create validator set and state
valSet := &types.ValidatorSet{
Validators: []*types.Validator{
{Address: valAddr},
},
}
state := sm.State{
LastBlockHeight: 0,
LastBlockTime: tmtime.Now(),
Validators: valSet,
NextValidators: valSet.CopyIncrementProposerPriority(1),
LastHeightValidatorsChanged: 1,
ConsensusParams: types.ConsensusParams{
Evidence: types.EvidenceParams{
MaxAge: 1000000,
},
},
}
// save all states up to height
for i := int64(0); i < height; i++ {
state.LastBlockHeight = i
sm.SaveState(stateDB, state)
}
return stateDB
}
func TestEvidencePool(t *testing.T) {
valAddr := []byte("val1")
height := int64(5)
stateDB := initializeValidatorState(valAddr, height)
evidenceDB := dbm.NewMemDB()
pool := NewEvidencePool(stateDB, evidenceDB)
goodEvidence := types.NewMockGoodEvidence(height, 0, valAddr)
badEvidence := types.MockBadEvidence{MockGoodEvidence: goodEvidence}
// bad evidence
err := pool.AddEvidence(badEvidence)
assert.NotNil(t, err)
var wg sync.WaitGroup
wg.Add(1)
go func() {
<-pool.EvidenceWaitChan()
wg.Done()
}()
err = pool.AddEvidence(goodEvidence)
assert.Nil(t, err)
wg.Wait()
assert.Equal(t, 1, pool.evidenceList.Len())
// if we send it again, it shouldnt change the size
err = pool.AddEvidence(goodEvidence)
assert.Nil(t, err)
assert.Equal(t, 1, pool.evidenceList.Len())
}
func TestEvidencePoolIsCommitted(t *testing.T) {
// Initialization:
valAddr := []byte("validator_address")
height := int64(42)
stateDB := initializeValidatorState(valAddr, height)
evidenceDB := dbm.NewMemDB()
pool := NewEvidencePool(stateDB, evidenceDB)
// evidence not seen yet:
evidence := types.NewMockGoodEvidence(height, 0, valAddr)
assert.False(t, pool.IsCommitted(evidence))
// evidence seen but not yet committed:
assert.NoError(t, pool.AddEvidence(evidence))
assert.False(t, pool.IsCommitted(evidence))
// evidence seen and committed:
pool.MarkEvidenceAsCommitted(height, []types.Evidence{evidence})
assert.True(t, pool.IsCommitted(evidence))
}