From b4c420203bb7d151d85c88e6ba8af909b80e3688 Mon Sep 17 00:00:00 2001
From: Finn Bear <finnbearlabs@gmail.com>
Date: Thu, 19 Sep 2024 18:40:35 -0700
Subject: [PATCH] Normal #[test].

---
 src/ext/rust_decimal.rs | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/src/ext/rust_decimal.rs b/src/ext/rust_decimal.rs
index f4685b6..8788f47 100644
--- a/src/ext/rust_decimal.rs
+++ b/src/ext/rust_decimal.rs
@@ -82,3 +82,23 @@ unsafe impl CheckedBitPattern for Flags {
 impl<'a> Decode<'a> for Flags {
     type Decoder = crate::int::CheckedIntDecoder<'a, Flags, u8>;
 }
+
+#[cfg(test)]
+mod tests {
+    use crate::{decode, encode};
+    use rust_decimal::Decimal;
+
+    #[test]
+    fn rust_decimal() {
+        let vs = [
+            Decimal::from(0),
+            Decimal::from(-1),
+            Decimal::from(1) / Decimal::from(2),
+            Decimal::from(1),
+            Decimal::from(999999999999999999u64),
+        ];
+        for v in vs {
+            assert_eq!(decode::<Decimal>(&encode(&v)).unwrap(), v);
+        }
+    }
+}