assertTrue("Field naming should be present", fieldNamingOpt.isPresent());
        assertEquals(JsonFieldNaming.CAMEL_TO_LOWER_SNAKE, fieldNamingOpt.get());
    }

    @Test
    public void test_provideMappingOption_notNull() {
        // Test that mapping option is never null
        JsonMappingOption option1 = provider.provideMappingOption();
        JsonMappingOption option2 = provider.provideMappingOption();