1 files changed, 17 insertions, 0 deletions
diff --git a/tests/ui/deriving/deriving-via-extension-struct-tuple.rs b/tests/ui/deriving/deriving-via-extension-struct-tuple.rs
new file mode 100644
index 00000000000..e84906c96bb
--- /dev/null
+++ b/tests/ui/deriving/deriving-via-extension-struct-tuple.rs
@@ -0,0 +1,17 @@
+// run-pass
+#[derive(PartialEq, Debug)]
+struct Foo(isize, isize, String);
+
+pub fn main() {
+  let a1 = Foo(5, 6, "abc".to_string());
+  let a2 = Foo(5, 6, "abc".to_string());
+  let b = Foo(5, 7, "def".to_string());
+
+  assert_eq!(a1, a1);
+  assert_eq!(a2, a1);
+  assert!(!(a1 == b));
+
+  assert!(a1 != b);
+  assert!(!(a1 != a1));
+  assert!(!(a2 != a1));
+}