2 files changed, 7 insertions, 0 deletions
diff --git a/test/std/strings/basic.string/string.modifiers/string_assign/string.pass.cpp b/test/std/strings/basic.string/string.modifiers/string_assign/string.pass.cpp
index d7ddb77b8e0f..99b53155d37e 100644
--- a/test/std/strings/basic.string/string.modifiers/string_assign/string.pass.cpp
+++ b/test/std/strings/basic.string/string.modifiers/string_assign/string.pass.cpp
@@ -76,4 +76,10 @@ int main()
          S("12345678901234567890"));
     }
 #endif
+#if __cplusplus > 201402L
+    {
+    typedef std::string S;
+    static_assert(noexcept(S().assign(S())), "");  // LWG#2063
+    }
+#endif
 }
diff --git a/test/std/strings/basic.string/string.modifiers/string_assign/string_size_size.pass.cpp b/test/std/strings/basic.string/string.modifiers/string_assign/string_size_size.pass.cpp
index 5f5983e76c94..db9e9a3271c6 100644
--- a/test/std/strings/basic.string/string.modifiers/string_assign/string_size_size.pass.cpp
+++ b/test/std/strings/basic.string/string.modifiers/string_assign/string_size_size.pass.cpp
@@ -7,6 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 
+// XFAIL: libcpp-no-exceptions
 // <string>
 
 // basic_string<charT,traits,Allocator>&