1 files changed, 11 insertions, 0 deletions
diff --git a/tests/ui/attributes/attr_unknown_custom_attr.rs b/tests/ui/attributes/attr_unknown_custom_attr.rs
new file mode 100644
index 00000000000..cdbe48a636f
--- /dev/null
+++ b/tests/ui/attributes/attr_unknown_custom_attr.rs
@@ -0,0 +1,11 @@
+//! Checks error handling for undefined custom attributes.
+
+#![feature(stmt_expr_attributes)]
+
+#[foo] //~ ERROR cannot find attribute `foo` in this scope
+fn main() {
+    #[foo] //~ ERROR cannot find attribute `foo` in this scope
+    let x = ();
+    #[foo] //~ ERROR cannot find attribute `foo` in this scope
+    x
+}