diff --git a/test/testother.cpp b/test/testother.cpp
index 113de252214..4b4f6215cee 100644
--- a/test/testother.cpp
+++ b/test/testother.cpp
@@ -99,6 +99,7 @@ class TestOther : public TestFixture {
         TEST_CASE(varScope36);      // #12158
         TEST_CASE(varScope37);      // #12158
         TEST_CASE(varScope38);
+        TEST_CASE(varScope39);
 
         TEST_CASE(oldStylePointerCast);
         TEST_CASE(invalidPointerCast);
@@ -1693,6 +1694,22 @@ class TestOther : public TestFixture {
         ASSERT_EQUALS("", errout_str());
     }
 
+    void varScope39() {
+        check("struct S {\n" // #12405
+              "    void f(const std::string&) const;\n"
+              "    const int* g(std::string&) const;\n"
+              "};\n"
+              "void h(int);\n"
+              "void S::f(const std::string& s) const {\n"
+              "    std::string n = s;\n"
+              "    const int* a = g(n);\n"
+              "    if (n == \"abc\") {\n"
+              "        h(a[0]);\n"
+              "    }\n"
+              "}\n");
+        ASSERT_EQUALS("", errout_str());
+    }
+
 
 #define checkOldStylePointerCast(code) checkOldStylePointerCast_(code, __FILE__, __LINE__)
     void checkOldStylePointerCast_(const char code[], const char* file, int line) {
@@ -4113,6 +4130,13 @@ class TestOther : public TestFixture {
         ASSERT_EQUALS("[test.cpp:3]: (style) C-style pointer casting\n"
                       "[test.cpp:3]: (style) Variable 's' can be declared as pointer to const\n",
                       errout_str()); // don't crash
+
+        check("struct S { int i; };\n" // #12205
+              "void f(S* s) {\n"
+              "    (void)s->i;\n"
+              "}\n");
+        ASSERT_EQUALS("[test.cpp:2]: (style) Parameter 's' can be declared as pointer to const\n",
+                      errout_str());
     }
 
     void switchRedundantAssignmentTest() {