diff --git a/antireplay/stable_bloom_filter.go b/antireplay/stable_bloom_filter.go
index 5ab15f3..6eef3f5 100644
--- a/antireplay/stable_bloom_filter.go
+++ b/antireplay/stable_bloom_filter.go
@@ -16,7 +16,7 @@ func (s *stableBloomFilter) SeenBefore(digest []byte) bool {
 
 func NewStableBloomFilter(byteSize uint, errorRate float64) mtglib.AntiReplayCache {
 	sf := boom.NewDefaultStableBloomFilter(byteSize*8, errorRate) // nolint: gomnd
-    sf.SetHash(xxhash.New64())
+	sf.SetHash(xxhash.New64())
 
 	return &stableBloomFilter{
 		filter: *sf,
diff --git a/testlib/mtglib_antireplay_cache_mock.go b/testlib/mtglib_antireplay_cache_mock.go
new file mode 100644
index 0000000..20ac993
--- /dev/null
+++ b/testlib/mtglib_antireplay_cache_mock.go
@@ -0,0 +1,11 @@
+package testlib
+
+import "github.com/stretchr/testify/mock"
+
+type MtglibAntiReplayCacheMock struct {
+	mock.Mock
+}
+
+func (m *MtglibAntiReplayCacheMock) SeenBefore(data []byte) bool {
+	return m.Called(data).Bool(0)
+}
diff --git a/testlib/mtglib_network_mock.go b/testlib/mtglib_network_mock.go
index 5a8192f..23fa8ba 100644
--- a/testlib/mtglib_network_mock.go
+++ b/testlib/mtglib_network_mock.go
@@ -13,14 +13,14 @@ type MtglibNetworkMock struct {
 	mock.Mock
 }
 
-func (n *MtglibNetworkMock) Dial(network, address string) (net.Conn, error) {
-	args := n.Called(network, address)
+func (m *MtglibNetworkMock) Dial(network, address string) (net.Conn, error) {
+	args := m.Called(network, address)
 
 	return args.Get(0).(net.Conn), args.Error(1)
 }
 
-func (n *MtglibNetworkMock) DialContext(ctx context.Context, network, address string) (net.Conn, error) {
-	args := n.Called(ctx, network, address)
+func (m *MtglibNetworkMock) DialContext(ctx context.Context, network, address string) (net.Conn, error) {
+	args := m.Called(ctx, network, address)
 
 	return args.Get(0).(net.Conn), args.Error(1)
 }