1 files changed, 21 insertions, 0 deletions
diff --git a/tests/ui/consts/assoc-const.rs b/tests/ui/consts/assoc-const.rs
new file mode 100644
index 000000000..f542f2dcb
--- /dev/null
+++ b/tests/ui/consts/assoc-const.rs
@@ -0,0 +1,21 @@
+// run-pass
+#![allow(unused_variables)]
+
+trait Nat {
+    const VALUE: usize;
+}
+
+struct Zero;
+struct Succ<N>(#[allow(unused_tuple_struct_fields)] N);
+
+impl Nat for Zero {
+    const VALUE: usize = 0;
+}
+
+impl<N: Nat> Nat for Succ<N> {
+    const VALUE: usize = N::VALUE + 1;
+}
+
+fn main() {
+    let x: [i32; <Succ<Succ<Succ<Succ<Zero>>>>>::VALUE] = [1, 2, 3, 4];
+}