@Test
public void Deserialization_MockTree_ShouldDeserialize()
    throws JsonMappingException, JsonProcessingException {

  final String str =
      "{\n"
          + "  \"collection\": \"circuit_rules\",\n"
          + "  \"rules\": {\n"
          + "  \"function\": \"AND\",\n"
          + "  \"rules\": [\n"
          + "    {\n"
          + "    \"function\": \"AND\",\n"
          + "    \"rules\": [\n"
          + "      \"[0] EQUALS L1\",\n"
          + "      \"[1] EQUALS Ascar\",\n"
          + "      \"[3] EQUALS Bscar\"\n"
          + "    ]\n"
          + "    },\n"
          + "    {\n"
          + "    \"function\": \"AND\",\n"
          + "    \"rules\": [\n"
          + "      \"[5] EQUALS Cscar\",\n"
          + "      \"[7] EQUALS Dscar\",\n"
          + "      \"[9] EQUALS Escar\"\n"
          + "    ]\n"
          + "    }\n"
          + "  ]\n"
          + "  }\n"
          + "}";
  ObjectMapper mapper = new ObjectMapper();
  RuleTree tree = mapper.readValue(str, RuleTree.class);
  assert (tree.getRoot() instanceof ParentRuleTreeNode);
}