1 files changed, 13 insertions, 0 deletions
diff --git a/src/test/ui/deriving/deriving-via-extension-struct-like-enum-variant.rs b/src/test/ui/deriving/deriving-via-extension-struct-like-enum-variant.rs
new file mode 100644
index 000000000..b6e6f136c
--- /dev/null
+++ b/src/test/ui/deriving/deriving-via-extension-struct-like-enum-variant.rs
@@ -0,0 +1,13 @@
+// run-pass
+#![allow(dead_code)]
+#[derive(PartialEq, Debug)]
+enum S {
+    X { x: isize, y: isize },
+    Y
+}
+
+pub fn main() {
+    let x = S::X { x: 1, y: 2 };
+    assert_eq!(x, x);
+    assert!(!(x != x));
+}