From 87a6300b22725bfea57f0e4fb95ccf70ed7d8cc8 Mon Sep 17 00:00:00 2001
From: y21 <30553356+y21@users.noreply.github.com>
Date: Sun, 21 Jan 2024 13:33:03 +0100
Subject: [PATCH] add a test for rust-lang/rust-clippy#12181

---
 tests/ui/unconditional_recursion.rs | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/tests/ui/unconditional_recursion.rs b/tests/ui/unconditional_recursion.rs
index 2ad7c410d..263fdf26d 100644
--- a/tests/ui/unconditional_recursion.rs
+++ b/tests/ui/unconditional_recursion.rs
@@ -321,6 +321,30 @@ mod issue12154 {
             *other == *self
         }
     }
+
+    // Issue #12181 but also fixed by the same PR
+    struct Foo;
+
+    impl Foo {
+        fn as_str(&self) -> &str {
+            "Foo"
+        }
+    }
+
+    impl PartialEq for Foo {
+        fn eq(&self, other: &Self) -> bool {
+            self.as_str().eq(other.as_str())
+        }
+    }
+
+    impl<T> PartialEq<T> for Foo
+    where
+        for<'a> &'a str: PartialEq<T>,
+    {
+        fn eq(&self, other: &T) -> bool {
+            (&self.as_str()).eq(other)
+        }
+    }
 }
 
 fn main() {}