1 files changed, 32 insertions, 0 deletions
diff --git a/tests/ui/proc-macro/attr-invalid-exprs.stderr b/tests/ui/proc-macro/attr-invalid-exprs.stderr
new file mode 100644
index 00000000000..f96939bb6ef
--- /dev/null
+++ b/tests/ui/proc-macro/attr-invalid-exprs.stderr
@@ -0,0 +1,32 @@
+error: expected expression, found end of macro arguments
+  --> $DIR/attr-invalid-exprs.rs:12:13
+   |
+LL |     let _ = #[no_output] "Hello, world!";
+   |             ^^^^^^^^^^^^
+
+error: macro expansion ignores token `,` and any following
+  --> $DIR/attr-invalid-exprs.rs:15:13
+   |
+LL |     let _ = #[duplicate] "Hello, world!";
+   |             ^^^^^^^^^^^^ caused by the macro expansion here
+   |
+   = note: the usage of `duplicate!` is likely invalid in expression context
+help: you might be missing a semicolon here
+   |
+LL |     let _ = #[duplicate]; "Hello, world!";
+   |                         +
+
+error: macro expansion ignores token `,` and any following
+  --> $DIR/attr-invalid-exprs.rs:24:9
+   |
+LL |         #[duplicate]
+   |         ^^^^^^^^^^^^ caused by the macro expansion here
+   |
+   = note: the usage of `duplicate!` is likely invalid in expression context
+help: you might be missing a semicolon here
+   |
+LL |         #[duplicate];
+   |                     +
+
+error: aborting due to 3 previous errors
+