From d8124348277786c9f198e912c79e89fa99b524fc Mon Sep 17 00:00:00 2001
From: Marcel Enguehard <marcel.enguehard@polycea.fr>
Date: Thu, 30 Jul 2026 11:26:04 +0200
Subject: [PATCH] Add zero known-answer test for Euros

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
---
 crates/immo-core/src/euros.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/crates/immo-core/src/euros.rs b/crates/immo-core/src/euros.rs
index e7529ee..87070cb 100644
--- a/crates/immo-core/src/euros.rs
+++ b/crates/immo-core/src/euros.rs
@@ -73,4 +73,10 @@ mod tests {
             "Mantissa should be equal to i64::MAX"
         );
     }
+
+    #[test]
+    fn from_0_cents_to_decimal_stays_zero() {
+        let euros = Euros::from_cents(0);
+        assert_eq!(euros.as_decimal(), Decimal::ZERO);
+    }
 }