1 files changed, 5 insertions, 3 deletions
diff --git a/eth/helper_test.go b/eth/helper_test.go
index f23976785..bd6b2d0da 100644
--- a/eth/helper_test.go
+++ b/eth/helper_test.go
@@ -93,7 +93,7 @@ type testTxPool struct {
 
 // AddBatch appends a batch of transactions to the pool, and notifies any
 // listeners if the addition channel is non nil
-func (p *testTxPool) AddBatch(txs []*types.Transaction) {
+func (p *testTxPool) AddBatch(txs []*types.Transaction) error {
 	p.lock.Lock()
 	defer p.lock.Unlock()
 
@@ -101,10 +101,12 @@ func (p *testTxPool) AddBatch(txs []*types.Transaction) {
 	if p.added != nil {
 		p.added <- txs
 	}
+
+	return nil
 }
 
 // Pending returns all the transactions known to the pool
-func (p *testTxPool) Pending() map[common.Address]types.Transactions {
+func (p *testTxPool) Pending() (map[common.Address]types.Transactions, error) {
 	p.lock.RLock()
 	defer p.lock.RUnlock()
 
@@ -116,7 +118,7 @@ func (p *testTxPool) Pending() map[common.Address]types.Transactions {
 	for _, batch := range batches {
 		sort.Sort(types.TxByNonce(batch))
 	}
-	return batches
+	return batches, nil
 }
 
 // newTestTransaction create a new dummy transaction.