From 15ecbfef161bd89da5587c8700927025f1582eb8 Mon Sep 17 00:00:00 2001
From: Guillaume Thiolliere <gui.thiolliere@gmail.com>
Date: Thu, 23 Sep 2021 13:51:40 +0200
Subject: [PATCH] add test (#9822)
---
substrate/frame/support/src/traits/misc.rs | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/substrate/frame/support/src/traits/misc.rs b/substrate/frame/support/src/traits/misc.rs
index 75f2f8ac3fe..82c5512ac15 100644
--- a/substrate/frame/support/src/traits/misc.rs
+++ b/substrate/frame/support/src/traits/misc.rs
@@ -424,3 +424,19 @@ impl<T> From<T> for WrapperOpaque<T> {
Self(t)
}
}
+
+#[cfg(test)]
+mod test {
+ use super::*;
+
+ #[test]
+ fn test_opaque_wrapper() {
+ let encoded = WrapperOpaque(3u32).encode();
+ assert_eq!(encoded, [codec::Compact(4u32).encode(), 3u32.to_le_bytes().to_vec()].concat());
+ let vec_u8 = <Vec<u8>>::decode(&mut &encoded[..]).unwrap();
+ let decoded_from_vec_u8 = u32::decode(&mut &vec_u8[..]).unwrap();
+ assert_eq!(decoded_from_vec_u8, 3u32);
+ let decoded = <WrapperOpaque<u32>>::decode(&mut &encoded[..]).unwrap();
+ assert_eq!(decoded.0, 3u32);
+ }
+}
--
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