1 files changed, 30 insertions, 0 deletions
diff --git a/tests/ui/structs-enums/nonzero-enum.rs b/tests/ui/structs-enums/nonzero-enum.rs
new file mode 100644
index 00000000000..15b571be563
--- /dev/null
+++ b/tests/ui/structs-enums/nonzero-enum.rs
@@ -0,0 +1,30 @@
+// run-pass
+#![allow(dead_code)]
+use std::mem::size_of;
+
+enum E {
+    A = 1,
+    B = 2,
+    C = 3,
+}
+
+struct S {
+    a: u16,
+    b: u8,
+    e: E,
+}
+
+fn main() {
+    assert_eq!(size_of::<E>(), 1);
+    assert_eq!(size_of::<Option<E>>(), 1);
+    assert_eq!(size_of::<Result<E, ()>>(), 1);
+    assert_eq!(size_of::<Option<S>>(), size_of::<S>());
+    let enone = None::<E>;
+    let esome = Some(E::A);
+    if let Some(..) = enone {
+        panic!();
+    }
+    if let None = esome {
+        panic!();
+    }
+}