1 files changed, 20 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/fn_address_comparisons.rs b/src/tools/clippy/tests/ui/fn_address_comparisons.rs
new file mode 100644
index 000000000..362dcb4fd
--- /dev/null
+++ b/src/tools/clippy/tests/ui/fn_address_comparisons.rs
@@ -0,0 +1,20 @@
+use std::fmt::Debug;
+use std::ptr;
+use std::rc::Rc;
+use std::sync::Arc;
+
+fn a() {}
+
+#[warn(clippy::fn_address_comparisons)]
+fn main() {
+    type F = fn();
+    let f: F = a;
+    let g: F = f;
+
+    // These should fail:
+    let _ = f == a;
+    let _ = f != a;
+
+    // These should be fine:
+    let _ = f == g;
+}