static Properties resolveConsumerProperties(Map<String, String> options, Object keySchema, Object valueSchema) {
        Properties properties = from(options);

        withSerdeConsumerProperties(true, options, keySchema, properties);
        withSerdeConsumerProperties(false, options, valueSchema, properties);

        return properties;
    }
@Test
    public void test_consumerProperties_absentFormat() {
        assertThat(resolveConsumerProperties(emptyMap()))
                .containsExactlyEntriesOf(Map.of(KEY_DESERIALIZER, ByteArrayDeserializer.class.getCanonicalName()));
    }