Simple unit test of NewNodeTransport

store/transport.go

@@ -65,6 +65,9 @@ func NewNodeTransport(transport *raft.NetworkTransport) *NodeTransport {
 // Close closes the transport
 func (n *NodeTransport) Close() error {
 	close(n.done)
+	if n.NetworkTransport == nil {
+		return nil
+	}
 	return n.NetworkTransport.Close()
 }
 

store/transport_test.go

@@ -9,3 +9,13 @@ func Test_NewTransport(t *testing.T) {
 		t.Fatal("failed to create new Transport")
 	}
 }
+
+func Test_NewNodeTransport(t *testing.T) {
+	nt := NewNodeTransport(nil)
+	if nt == nil {
+		t.Fatal("failed to create new NodeTransport")
+	}
+	if err := nt.Close(); err != nil {
+		t.Fatalf("failed to close NodeTransport: %s", err.Error())
+	}
+}