Test aes_free( NULL ) unconditionally
diff --git a/tests/suites/test_suite_aes.rest.data b/tests/suites/test_suite_aes.rest.data
index 14b78a6..a5d843d 100644
--- a/tests/suites/test_suite_aes.rest.data
+++ b/tests/suites/test_suite_aes.rest.data
@@ -13,6 +13,9 @@
 AES - Invalid parameters
 aes_invalid_param:
 
+AES - Valid parameters
+aes_valid_param:
+
 AES Selftest
 depends_on:MBEDTLS_SELF_TEST
 aes_selftest: