diff --git a/blockchain/v0/reactor_test.go b/blockchain/v0/reactor_test.go
index d4672cbdb..b56b38939 100644
--- a/blockchain/v0/reactor_test.go
+++ b/blockchain/v0/reactor_test.go
@@ -9,6 +9,7 @@ import (
 
 	"github.com/stretchr/testify/require"
 
+	abci "github.com/tendermint/tendermint/abci/types"
 	cfg "github.com/tendermint/tendermint/config"
 	"github.com/tendermint/tendermint/libs/log"
 	"github.com/tendermint/tendermint/mempool/mock"
@@ -49,7 +50,7 @@ func setup(
 
 	require.Len(t, privVals, 1, "only one validator can be supported")
 
-	app := &testApp{}
+	app := &abci.BaseApplication{}
 	cc := proxy.NewLocalClientCreator(app)
 
 	proxyApp := proxy.NewAppConns(cc)
diff --git a/blockchain/v0/test_util.go b/blockchain/v0/test_util.go
index ceed43c49..f9b119d14 100644
--- a/blockchain/v0/test_util.go
+++ b/blockchain/v0/test_util.go
@@ -3,47 +3,12 @@ package v0
 import (
 	"sort"
 
-	abci "github.com/tendermint/tendermint/abci/types"
 	cfg "github.com/tendermint/tendermint/config"
 	sm "github.com/tendermint/tendermint/state"
 	"github.com/tendermint/tendermint/types"
 	tmtime "github.com/tendermint/tendermint/types/time"
 )
 
-type testApp struct {
-	abci.BaseApplication
-}
-
-var _ abci.Application = (*testApp)(nil)
-
-func (app *testApp) Info(req abci.RequestInfo) (resInfo abci.ResponseInfo) {
-	return abci.ResponseInfo{}
-}
-
-func (app *testApp) BeginBlock(req abci.RequestBeginBlock) abci.ResponseBeginBlock {
-	return abci.ResponseBeginBlock{}
-}
-
-func (app *testApp) EndBlock(req abci.RequestEndBlock) abci.ResponseEndBlock {
-	return abci.ResponseEndBlock{}
-}
-
-func (app *testApp) DeliverTx(req abci.RequestDeliverTx) abci.ResponseDeliverTx {
-	return abci.ResponseDeliverTx{Events: []abci.Event{}}
-}
-
-func (app *testApp) CheckTx(req abci.RequestCheckTx) abci.ResponseCheckTx {
-	return abci.ResponseCheckTx{}
-}
-
-func (app *testApp) Commit() abci.ResponseCommit {
-	return abci.ResponseCommit{}
-}
-
-func (app *testApp) Query(reqQuery abci.RequestQuery) (resQuery abci.ResponseQuery) {
-	return
-}
-
 func randGenesisDoc(
 	config *cfg.Config,
 	numValidators int,