1 files changed, 17 insertions, 0 deletions
diff --git a/tests/ui/macros/concat-bytes.rs b/tests/ui/macros/concat-bytes.rs
new file mode 100644
index 00000000000..fd8f99417ec
--- /dev/null
+++ b/tests/ui/macros/concat-bytes.rs
@@ -0,0 +1,17 @@
+// run-pass
+#![feature(concat_bytes)]
+
+fn main() {
+    assert_eq!(concat_bytes!(), &[]);
+    assert_eq!(
+        concat_bytes!(b'A', b"BC", [68, b'E', 70], [b'G'; 1], [72; 2], [73u8; 3], [65; 0]),
+        b"ABCDEFGHHIII",
+    );
+    assert_eq!(
+        concat_bytes!(
+            concat_bytes!(b"AB", b"CD"),
+            concat_bytes!(b"EF", b"GH"),
+        ),
+        b"ABCDEFGH",
+    );
+}