From e2a34afda05559791cb20730d67dacb4eef72abd Mon Sep 17 00:00:00 2001
From: Nicole <nicole@Nicoles-MacBook-Air.local>
Date: Mon, 25 Nov 2024 12:49:05 -0300
Subject: [PATCH] add test inv of zero error

---
 math/src/field/fields/fft_friendly/quartic_babybear.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/math/src/field/fields/fft_friendly/quartic_babybear.rs b/math/src/field/fields/fft_friendly/quartic_babybear.rs
index 6465542e1..0429130ca 100644
--- a/math/src/field/fields/fft_friendly/quartic_babybear.rs
+++ b/math/src/field/fields/fft_friendly/quartic_babybear.rs
@@ -328,6 +328,12 @@ mod tests {
         assert_eq!(a.inv().unwrap(), a);
     }
 
+    #[test]
+    fn test_inv_of_zero_error() {
+        let result = Fp4E::zero().inv();
+        assert!(result.is_err());
+    }
+
     #[test]
     fn test_mul_by_inv_is_identity() {
         let a = Fp4E::from(123456);