diff --git a/blockchain/v2/demuxer.go b/blockchain/v2/demuxer.go
index 9ae4c3f38..6b9df0f50 100644
--- a/blockchain/v2/demuxer.go
+++ b/blockchain/v2/demuxer.go
@@ -5,6 +5,9 @@ import (
 	"sync/atomic"
 )
 
+type scFull struct{}
+type pcFull struct{}
+
 type demuxer struct {
 	input     chan Event
 	scheduler *Routine
diff --git a/blockchain/v2/reactor.go b/blockchain/v2/reactor.go
index 85f669739..0a12f385c 100644
--- a/blockchain/v2/reactor.go
+++ b/blockchain/v2/reactor.go
@@ -5,13 +5,16 @@ import (
 	"time"
 )
 
+type timeCheck struct {
+	time time.Time
+}
+
 func schedulerHandle(event Event) (Events, error) {
 	switch event.(type) {
 	case timeCheck:
 		fmt.Println("scheduler handle timeCheck")
-	case testEvent:
+	case Event:
 		fmt.Println("scheduler handle testEvent")
-		return Events{scTestEvent{}}, nil
 	}
 	return Events{}, nil
 }
@@ -20,11 +23,8 @@ func processorHandle(event Event) (Events, error) {
 	switch event.(type) {
 	case timeCheck:
 		fmt.Println("processor handle timeCheck")
-	case testEvent:
-		fmt.Println("processor handle testEvent")
-	case scTestEvent:
-		fmt.Println("processor handle scTestEvent")
-		return Events{}, fmt.Errorf("processor done")
+	case Event:
+		fmt.Println("processor handle event")
 	}
 	return Events{}, nil
 }
@@ -40,10 +40,8 @@ type Reactor struct {
 
 // TODO: setLogger should set loggers of the routines
 func (r *Reactor) Start() {
-	// what is the best way to get the events out of the routine
 	r.scheduler = newRoutine("scheduler", schedulerHandle)
 	r.processor = newRoutine("processor", processorHandle)
-	// so actually the demuxer only needs to read from events
 	r.demuxer = newDemuxer(r.scheduler, r.processor)
 	r.tickerStopped = make(chan struct{})
 
diff --git a/blockchain/v2/reactor_test.go b/blockchain/v2/reactor_test.go
index b3430074f..d075641f7 100644
--- a/blockchain/v2/reactor_test.go
+++ b/blockchain/v2/reactor_test.go
@@ -7,7 +7,7 @@ func TestReactor(t *testing.T) {
 	reactor := Reactor{}
 	reactor.Start()
 	script := Events{
-		testEvent{},
+		struct{}{},
 	}
 
 	for _, event := range script {
diff --git a/blockchain/v2/routine_test.go b/blockchain/v2/routine_test.go
index cbf4768a8..cb7944ba3 100644
--- a/blockchain/v2/routine_test.go
+++ b/blockchain/v2/routine_test.go
@@ -11,6 +11,7 @@ import (
 
 type eventA struct{}
 type eventB struct{}
+type errEvent struct{}
 
 var done = fmt.Errorf("done")
 
diff --git a/blockchain/v2/types.go b/blockchain/v2/types.go
index e6f491460..dbde352a3 100644
--- a/blockchain/v2/types.go
+++ b/blockchain/v2/types.go
@@ -1,35 +1,4 @@
 package v2
 
-import "time"
-
 type Event interface{}
-
 type Events []Event
-type testEvent struct {
-	msg  string
-	time time.Time
-}
-
-type testEventTwo struct {
-	msg string
-}
-
-type stopEvent struct{}
-type timeCheck struct {
-	time time.Time
-}
-
-type errEvent struct{}
-
-type scTestEvent struct{}
-
-type pcFinished struct{}
-
-type routineFinished struct{}
-
-func (rf *routineFinished) Error() string {
-	return "routine finished"
-}
-
-type scFull struct{}
-type pcFull struct{}