    @Test
    public void test_search_cerberus_metadata_parameters_empty() throws IOException {

        HashMap result = new ObjectMapper().readValue(mockResponseBodyString, HashMap.class);
        ArrayList<Map<String, String>> sdbMetadata = (ArrayList<Map<String, String>>) result.get("safe_deposit_box_metadata");

        ArrayList<String> results = cerberusMetadataLookup.searchCerberusMetadata(sdbMetadata, "", "");
        assertTrue(results.contains("No owner found"));
    }