diff --git a/iot_verifier/src/poc.rs b/iot_verifier/src/poc.rs
index 296e2cb2d..1cb8ad54a 100644
--- a/iot_verifier/src/poc.rs
+++ b/iot_verifier/src/poc.rs
@@ -1022,6 +1022,16 @@ mod tests {
         );
     }
 
+    #[test]
+    fn test_verify_denylist() {
+        let deny_list: DenyList = vec![PublicKeyBinary::from_str(DENIED_PUBKEY1).unwrap()]
+            .try_into()
+            .unwrap();
+        assert!(verify_denylist(&PublicKeyBinary::from_str(PUBKEY1).unwrap(), &deny_list).is_ok());
+        assert_eq!(Err(InvalidReason::Denied), verify_denylist(&PublicKeyBinary::from_str(DENIED_PUBKEY1).unwrap(), &deny_list));
+    }
+
+
     #[test]
     fn test_verify_capability() {
         assert!(verify_gw_capability(true).is_ok());