1 files changed, 30 insertions, 0 deletions
diff --git a/libcxx/test/std/input.output/filesystems/fs.req.macros/feature_macro.pass.cpp b/libcxx/test/std/input.output/filesystems/fs.req.macros/feature_macro.pass.cpp
new file mode 100644
index 00000000000..dad1868bee3
--- /dev/null
+++ b/libcxx/test/std/input.output/filesystems/fs.req.macros/feature_macro.pass.cpp
@@ -0,0 +1,30 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+// <filesystem>
+
+// #define __cpp_lib_filesystem 201703L
+
+#include <filesystem>
+#include "test_macros.h"
+
+#if TEST_STD_VER >= 17
+#ifndef __cpp_lib_filesystem
+#error Filesystem feature test macro is not defined  (__cpp_lib_filesystem)
+#elif __cpp_lib_filesystem != 201703L
+#error Filesystem feature test macro has an incorrect value (__cpp_lib_filesystem)
+#endif
+#else // TEST_STD_VER < 17
+#ifdef __cpp_lib_filesystem
+#error Filesystem feature test macro should not be defined before C++17
+#endif
+#endif
+
+int main(int, char**) { 
+  return 0;
+}