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package test
import (
"testing"
"time"
"github.com/dexon-foundation/dexon-consensus-core/common"
"github.com/stretchr/testify/suite"
)
type AppTestSuite struct {
suite.Suite
to1, to2, to3 *totalOrderDeliver
}
func (s *AppTestSuite) SetupSuite() {
s.to1 = &totalOrderDeliver{
BlockHashes: common.Hashes{
common.NewRandomHash(),
common.NewRandomHash(),
},
Early: false,
}
s.to2 = &totalOrderDeliver{
BlockHashes: common.Hashes{
common.NewRandomHash(),
common.NewRandomHash(),
common.NewRandomHash(),
},
Early: false,
}
s.to3 = &totalOrderDeliver{
BlockHashes: common.Hashes{
common.NewRandomHash(),
},
Early: false,
}
}
func (s *AppTestSuite) setupAppByTotalOrderDeliver(
app *App, to *totalOrderDeliver) {
for _, h := range to.BlockHashes {
app.StronglyAcked(h)
}
app.TotalOrderingDeliver(to.BlockHashes, to.Early)
for _, h := range to.BlockHashes {
// To make it simpler, use the index of hash sequence
// as the time.
s.deliverBlockWithTimeFromSequenceLength(app, h)
}
}
func (s *AppTestSuite) deliverBlockWithTimeFromSequenceLength(
app *App, hash common.Hash) {
app.DeliverBlock(
hash,
time.Time{}.Add(time.Duration(len(app.DeliverSequence))*time.Second))
}
func (s *AppTestSuite) TestCompare() {
req := s.Require()
app1 := NewApp()
s.setupAppByTotalOrderDeliver(app1, s.to1)
s.setupAppByTotalOrderDeliver(app1, s.to2)
s.setupAppByTotalOrderDeliver(app1, s.to3)
// An App with different deliver sequence.
app2 := NewApp()
s.setupAppByTotalOrderDeliver(app2, s.to1)
s.setupAppByTotalOrderDeliver(app2, s.to2)
hash := common.NewRandomHash()
app2.StronglyAcked(hash)
app2.TotalOrderingDeliver(common.Hashes{hash}, false)
s.deliverBlockWithTimeFromSequenceLength(app2, hash)
req.Equal(ErrMismatchBlockHashSequence, app1.Compare(app2))
// An App with different consensus time for the same block.
app3 := NewApp()
s.setupAppByTotalOrderDeliver(app3, s.to1)
s.setupAppByTotalOrderDeliver(app3, s.to2)
for _, h := range s.to3.BlockHashes {
app3.StronglyAcked(h)
}
app3.TotalOrderingDeliver(s.to3.BlockHashes, s.to3.Early)
wrongTime := time.Time{}.Add(
time.Duration(len(app3.DeliverSequence)) * time.Second)
wrongTime = wrongTime.Add(1 * time.Second)
app3.DeliverBlock(s.to3.BlockHashes[0], wrongTime)
req.Equal(ErrMismatchConsensusTime, app1.Compare(app3))
req.Equal(ErrMismatchConsensusTime, app3.Compare(app1))
// An App without any delivered blocks.
app4 := NewApp()
req.Equal(ErrEmptyDeliverSequence, app4.Compare(app1))
req.Equal(ErrEmptyDeliverSequence, app1.Compare(app4))
}
func (s *AppTestSuite) TestVerify() {
req := s.Require()
// An OK App instance.
app1 := NewApp()
s.setupAppByTotalOrderDeliver(app1, s.to1)
s.setupAppByTotalOrderDeliver(app1, s.to2)
s.setupAppByTotalOrderDeliver(app1, s.to3)
req.Nil(app1.Verify())
// A delivered block without strongly ack
app1.DeliverBlock(common.NewRandomHash(), time.Time{})
req.Equal(ErrDeliveredBlockNotAcked, app1.Verify())
// The consensus time is out of order.
app2 := NewApp()
s.setupAppByTotalOrderDeliver(app2, s.to1)
for _, h := range s.to2.BlockHashes {
app2.StronglyAcked(h)
}
app2.TotalOrderingDeliver(s.to2.BlockHashes, s.to2.Early)
app2.DeliverBlock(s.to2.BlockHashes[0], time.Time{})
req.Equal(ErrConsensusTimestampOutOfOrder, app2.Verify())
// A delivered block is not found in total ordering delivers.
app3 := NewApp()
s.setupAppByTotalOrderDeliver(app3, s.to1)
hash := common.NewRandomHash()
app3.StronglyAcked(hash)
s.deliverBlockWithTimeFromSequenceLength(app3, hash)
req.Equal(ErrMismatchTotalOrderingAndDelivered, app3.Verify())
// A delivered block is not found in total ordering delivers.
app4 := NewApp()
s.setupAppByTotalOrderDeliver(app4, s.to1)
for _, h := range s.to2.BlockHashes {
app4.StronglyAcked(h)
}
app4.TotalOrderingDeliver(s.to2.BlockHashes, s.to2.Early)
hash = common.NewRandomHash()
app4.StronglyAcked(hash)
app4.TotalOrderingDeliver(common.Hashes{hash}, false)
s.deliverBlockWithTimeFromSequenceLength(app4, hash)
}
func TestApp(t *testing.T) {
suite.Run(t, new(AppTestSuite))
}
|
