set threshold unsupported tests

crates/rules/src/roles_builder.rs

@@ -662,6 +662,15 @@ mod tests {
             test_duplicates_not_allowed(make(), list(), sample())
         }
 
+        #[test]
+        fn set_threshold_is_unsupported() {
+            let mut sut = make();
+            assert_eq!(
+                sut.set_threshold(1),
+                MutRes::basic_violation(BasicViolation::RecoveryCannotSetThreshold)
+            );
+        }
+
         #[test]
         fn cannot_add_factors_to_threshold() {
             let mut sut = make();
@@ -1136,6 +1145,15 @@ mod tests {
                 FactorSource::sample_device_babylon_other()
             }
 
+            #[test]
+            fn set_threshold_is_unsupported() {
+                let mut sut = make();
+                assert_eq!(
+                    sut.set_threshold(1),
+                    MutRes::basic_violation(BasicViolation::ConfirmationCannotSetThreshold)
+                );
+            }
+
             #[test]
             fn allowed_as_first_and_only() {
                 // Arrange