1 files changed, 16 insertions, 0 deletions
diff --git a/library/std/src/sys/pal/windows/api/tests.rs b/library/std/src/sys/pal/windows/api/tests.rs
new file mode 100644
index 00000000000..fab022c7b93
--- /dev/null
+++ b/library/std/src/sys/pal/windows/api/tests.rs
@@ -0,0 +1,16 @@
+use crate::sys::pal::windows::api::{utf16, wide_str};
+
+macro_rules! check_utf16 {
+    ($str:literal) => {{
+        assert!(wide_str!($str).iter().copied().eq($str.encode_utf16().chain([0])));
+        assert!(utf16!($str).iter().copied().eq($str.encode_utf16()));
+    }};
+}
+
+#[test]
+fn test_utf16_macros() {
+    check_utf16!("hello world");
+    check_utf16!("€4.50");
+    check_utf16!("𨉟呐㗂越");
+    check_utf16!("Pchnąć w tę łódź jeża lub ośm skrzyń fig");
+}