1 files changed, 17 insertions, 0 deletions
diff --git a/tests/ui/deriving/deriving-via-extension-c-enum.rs b/tests/ui/deriving/deriving-via-extension-c-enum.rs
new file mode 100644
index 00000000000..7fa1a69d7e0
--- /dev/null
+++ b/tests/ui/deriving/deriving-via-extension-c-enum.rs
@@ -0,0 +1,17 @@
+// run-pass
+#![allow(dead_code)]
+#[derive(PartialEq, Debug)]
+enum Foo {
+    Bar,
+    Baz,
+    Boo
+}
+
+pub fn main() {
+    let a = Foo::Bar;
+    let b = Foo::Bar;
+    assert_eq!(a, b);
+    assert!(!(a != b));
+    assert!(a.eq(&b));
+    assert!(!a.ne(&b));
+}