1 files changed, 30 insertions, 0 deletions
diff --git a/src/test/ui/consts/miri_unleashed/assoc_const_2.rs b/src/test/ui/consts/miri_unleashed/assoc_const_2.rs
new file mode 100644
index 000000000..30dd2a515
--- /dev/null
+++ b/src/test/ui/consts/miri_unleashed/assoc_const_2.rs
@@ -0,0 +1,30 @@
+// build-fail
+
+#![allow(const_err)]
+
+// a test demonstrating that const qualification cannot prevent monomorphization time errors
+
+trait Foo {
+    const X: u32;
+}
+
+trait Bar<U: Foo> {
+    const F: u32 = 100 / U::X;
+}
+
+impl Foo for () {
+    const X: u32 = 42;
+}
+
+impl Foo for String {
+    const X: u32 = 0;
+}
+
+impl Bar<()> for () {}
+impl Bar<String> for String {}
+
+fn main() {
+    let x = <() as Bar<()>>::F;
+    // this test only causes errors due to the line below, so post-monomorphization
+    let y = <String as Bar<String>>::F; //~ ERROR erroneous constant
+}