From 97a98a7031d051328f0d2841fdfe68d89029764f Mon Sep 17 00:00:00 2001
From: David Tolnay <dtolnay@gmail.com>
Date: Sun, 24 Nov 2019 15:59:08 -0800
Subject: [PATCH] Test only deser for untagged unit visit_none

---
 test_suite/tests/test_macros.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/test_suite/tests/test_macros.rs b/test_suite/tests/test_macros.rs
index d18b210e..d4456bed 100644
--- a/test_suite/tests/test_macros.rs
+++ b/test_suite/tests/test_macros.rs
@@ -637,8 +637,10 @@ fn test_untagged_enum() {
         ],
     );
 
+    // Serializes to unit, deserializes from either depending on format's
+    // preference.
     assert_tokens(&Untagged::C, &[Token::Unit]);
-    assert_tokens(&Untagged::C, &[Token::None]);
+    assert_de_tokens(&Untagged::C, &[Token::None]);
 
     assert_tokens(&Untagged::D(4), &[Token::U8(4)]);
     assert_tokens(&Untagged::E("e".to_owned()), &[Token::Str("e")]);