Extend test_internally_tagged_newtype_variant_containing_unit_struct to cover structs and seqs

test_suite/tests/test_macros.rs

@@ -1899,6 +1899,25 @@ fn test_internally_tagged_newtype_variant_containing_unit_struct() {
             Token::MapEnd,
         ],
     );
+
+    assert_de_tokens(
+        &Message::Info(Info),
+        &[
+            Token::Struct { name: "Message", len: 1 },
+            Token::Str("topic"),
+            Token::Str("Info"),
+            Token::StructEnd,
+        ],
+    );
+
+    assert_de_tokens(
+        &Message::Info(Info),
+        &[
+            Token::Seq { len: Some(1) },
+            Token::Str("Info"),
+            Token::SeqEnd,
+        ],
+    );
 }
 
 #[deny(safe_packed_borrows)]