diff --git a/tests/suites/test_suite_rsa.function b/tests/suites/test_suite_rsa.function
index 0865444..14b4afc 100644
--- a/tests/suites/test_suite_rsa.function
+++ b/tests/suites/test_suite_rsa.function
@@ -36,6 +36,20 @@
                                          invalid_hash_id ),
                 MBEDTLS_ERR_RSA_INVALID_PADDING );
 
+#if !defined(MBEDTLS_PKCS1_V15)
+    TEST_EQUAL( mbedtls_rsa_set_padding( &ctx,
+                                         MBEDTLS_RSA_PKCS_V15,
+                                         MBEDTLS_MD_NONE ),
+                MBEDTLS_ERR_RSA_INVALID_PADDING );
+#endif
+
+#if !defined(MBEDTLS_PKCS1_V21)
+    TEST_EQUAL( mbedtls_rsa_set_padding( &ctx,
+                                         MBEDTLS_RSA_PKCS_V21,
+                                         MBEDTLS_MD_NONE ),
+                MBEDTLS_ERR_RSA_INVALID_PADDING );
+#endif
+
 exit:
     mbedtls_rsa_free( &ctx );
 }