From 1e4f59d3aed8235e2cce763570054ef06d7a2fd3 Mon Sep 17 00:00:00 2001
From: Xuanyi Zhou <zxy19980101@sina.cn>
Date: Sat, 26 Dec 2020 23:38:27 -0500
Subject: [PATCH] add return statement & comment

---
 test/unittest/schematest.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/test/unittest/schematest.cpp b/test/unittest/schematest.cpp
index da2a49d..e3caa0f 100644
--- a/test/unittest/schematest.cpp
+++ b/test/unittest/schematest.cpp
@@ -2038,9 +2038,11 @@ TEST(SchemaValidator, Ref_remote_issue1210) {
     class SchemaDocumentProvider : public IRemoteSchemaDocumentProvider {
         SchemaDocument** collection;
 
+        // Dummy private copy constructor & assignment operator.
         SchemaDocumentProvider(const SchemaDocumentProvider&) {
         }
         SchemaDocumentProvider& operator=(const SchemaDocumentProvider&) {
+            return *this;
         }
 
         public: