add test inv of zero error

lambdaclass · Nov 25, 2024 · e2a34af · e2a34af
1 parent cbd52a8
commit e2a34af
Showing 1 changed file with 6 additions and 0 deletions.
diff --git 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);