From 54b4cdb5cee4435a1fefd62f824c29dc67837b65 Mon Sep 17 00:00:00 2001
From: chrchr-github <78114321+chrchr-github@users.noreply.github.com>
Date: Thu, 29 Aug 2024 11:05:02 +0200
Subject: [PATCH] Update testclass.cpp

---
 test/testclass.cpp | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/test/testclass.cpp b/test/testclass.cpp
index 2cab08eeee1..bac96f1fc92 100644
--- a/test/testclass.cpp
+++ b/test/testclass.cpp
@@ -9066,6 +9066,23 @@ class TestClass : public TestFixture {
                                "    std::string foo() && { return s; }\n" // <- used for temporary objects
                                "};\n");
         ASSERT_EQUALS("", errout_str());
+
+        checkReturnByReference("struct S1 {\n" // #13056
+                               "    std::string str;\n"
+                               "    struct T { std::string strT; } mT;\n"
+                               "};\n"
+                               "struct S2 {\n"
+                               "    std::string get1() const {\n"
+                               "        return mS1->str;\n"
+                               "    }\n"
+                               "    std::string get2() const {\n"
+                               "        return mS1->mT.strT;\n"
+                               "    }\n"
+                               "    S1* mS1;\n"
+                               "};\n");
+        ASSERT_EQUALS("[test.cpp:6]: (performance) Function 'get1()' should return member 'str' by const reference.\n"
+                      "[test.cpp:9]: (performance) Function 'get2()' should return member 'strT' by const reference.\n",
+                      errout_str());
     }
 };