1 files changed, 12 insertions, 0 deletions
diff --git a/tests/ui/wf/wf-trait-superbound.rs b/tests/ui/wf/wf-trait-superbound.rs
new file mode 100644
index 000000000..8905a8820
--- /dev/null
+++ b/tests/ui/wf/wf-trait-superbound.rs
@@ -0,0 +1,12 @@
+// Test that we check supertrait bounds for WFedness.
+
+#![feature(associated_type_defaults)]
+#![feature(rustc_attrs)]
+#![allow(dead_code)]
+
+trait ExtraCopy<T:Copy> { }
+
+trait SomeTrait<T>: ExtraCopy<T> { //~ ERROR E0277
+}
+
+fn main() { }