implicit `Option`-returning doctests

This distinguishes `Option` and `Result`-returning doctests with
implicit `main` method, where the former tests must end with
`Some(())`.

1 files changed, 12 insertions, 0 deletions

diff --git a/src/test/rustdoc/process-termination.rs b/src/test/rustdoc/process-termination.rs
index 32258792b6e..31ae0143d47 100644
--- a/src/test/rustdoc/process-termination.rs
+++ b/src/test/rustdoc/process-termination.rs
@@ -21,4 +21,16 @@
 /// Err("This is returned from `main`, leading to panic")?;
 /// Ok::<(), &'static str>(())
 /// ```
+///
+/// This also works with `Option<()>`s now:
+///
+/// ```rust
+/// Some(())
+/// ```
+///
+/// ```rust,should_panic
+/// let x: &[u32] = &[];
+/// let _ = x.iter().next()?;
+/// Some(())
+/// ```
 pub fn check_process_termination() {}