From ed67768b62928f2a15c408e1899a9b2ea10d4dbe Mon Sep 17 00:00:00 2001
From: Marien Zwart <marienz@google.com>
Date: Tue, 17 Dec 2024 19:40:57 +1100
Subject: [PATCH] test: demonstrate PredicateBoxExt requires Sized

This test should fail, and the next commit should make it pass.
---
 src/boxed.rs | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/boxed.rs b/src/boxed.rs
index 55caac3..fbcd9bf 100644
--- a/src/boxed.rs
+++ b/src/boxed.rs
@@ -115,3 +115,14 @@ where
 }
 
 impl<P, Item> PredicateBoxExt<Item> for P where P: Predicate<Item> {}
+
+#[cfg(test)]
+mod test {
+    use crate::prelude::*;
+
+    #[test]
+    fn unsized_boxed() {
+        let p = predicate::always().boxed();
+        p.eval("4");
+    }
+}