Add test for const impl

1 files changed, 16 insertions, 0 deletions

diff --git a/src/test/ui/const-generics/impl-const-generic-struct.rs b/src/test/ui/const-generics/impl-const-generic-struct.rs
new file mode 100644
index 00000000000..7a0c0f2be5d
--- /dev/null
+++ b/src/test/ui/const-generics/impl-const-generic-struct.rs
@@ -0,0 +1,16 @@
+// run-pass
+
+#![feature(const_generics)]
+//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+
+struct S<const X: u32>;
+
+impl<const X: u32> S<{X}> {
+    fn x() -> u32 {
+        X
+    }
+}
+
+fn main() {
+    assert_eq!(S::<19>::x(), 19);
+}