1 files changed, 30 insertions, 0 deletions
diff --git a/tests/ui/macros/concat.stderr b/tests/ui/macros/concat.stderr
new file mode 100644
index 00000000000..61fb9de1ef9
--- /dev/null
+++ b/tests/ui/macros/concat.stderr
@@ -0,0 +1,30 @@
+error: cannot concatenate a byte string literal
+  --> $DIR/concat.rs:2:13
+   |
+LL |     concat!(b'f');
+   |             ^^^^
+
+error: cannot concatenate a byte string literal
+  --> $DIR/concat.rs:3:13
+   |
+LL |     concat!(b"foo");
+   |             ^^^^^^
+
+error: expected a literal
+  --> $DIR/concat.rs:4:13
+   |
+LL |     concat!(foo);
+   |             ^^^
+   |
+   = note: only literals (like `"foo"`, `42` and `3.14`) can be passed to `concat!()`
+
+error: expected a literal
+  --> $DIR/concat.rs:5:13
+   |
+LL |     concat!(foo());
+   |             ^^^^^
+   |
+   = note: only literals (like `"foo"`, `42` and `3.14`) can be passed to `concat!()`
+
+error: aborting due to 4 previous errors
+