1 files changed, 17 insertions, 0 deletions
diff --git a/src/test/ui/deriving/deriving-default-enum.rs b/src/test/ui/deriving/deriving-default-enum.rs
new file mode 100644
index 000000000..d1a81c72c
--- /dev/null
+++ b/src/test/ui/deriving/deriving-default-enum.rs
@@ -0,0 +1,17 @@
+// run-pass
+
+// nb: does not impl Default
+#[derive(Debug, PartialEq)]
+struct NotDefault;
+
+#[derive(Debug, Default, PartialEq)]
+enum Foo {
+    #[default]
+    Alpha,
+    #[allow(dead_code)]
+    Beta(NotDefault),
+}
+
+fn main() {
+    assert_eq!(Foo::default(), Foo::Alpha);
+}