Test NonZeroU8::new in a const context

src/test/ui/consts/const-nonzero.rs

@@ -1,9 +1,18 @@
-// build-pass (FIXME(62277): could be check-pass?)
+// run-pass
+
+#![feature(const_nonzero_int_methods)]
 
 use std::num::NonZeroU8;
 
 const X: NonZeroU8 = unsafe { NonZeroU8::new_unchecked(5) };
 const Y: u8 = X.get();
 
+const ZERO: Option<NonZeroU8> = NonZeroU8::new(0);
+const ONE: Option<NonZeroU8> = NonZeroU8::new(1);
+
 fn main() {
+    assert_eq!(Y, 5);
+
+    assert!(ZERO.is_none());
+    assert_eq!(ONE.unwrap().get(), 1);
 }