1 files changed, 19 insertions, 0 deletions
diff --git a/tests/ui/traits/default-method/rustc_must_implement_one_of_duplicates.rs b/tests/ui/traits/default-method/rustc_must_implement_one_of_duplicates.rs
new file mode 100644
index 000000000..8db5fa615
--- /dev/null
+++ b/tests/ui/traits/default-method/rustc_must_implement_one_of_duplicates.rs
@@ -0,0 +1,19 @@
+#![feature(rustc_attrs)]
+
+#[rustc_must_implement_one_of(a, a)]
+//~^ functions names are duplicated
+trait Trait {
+    fn a() {}
+}
+
+#[rustc_must_implement_one_of(b, a, a, c, b, c)]
+//~^ functions names are duplicated
+//~| functions names are duplicated
+//~| functions names are duplicated
+trait Trait1 {
+    fn a() {}
+    fn b() {}
+    fn c() {}
+}
+
+fn main() {}