content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License.  You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.apache.camel.component.kafka.transform;
  
  import java.util.ArrayList;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  import com.fasterxml.jackson.databind.JsonNode;
  import com.fasterxml.jackson.databind.ObjectMapper;
  import org.apache.camel.Exchange;
  import org.apache.camel.impl.DefaultCamelContext;
  import org.apache.camel.support.DefaultExchange;
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  class MaskFieldTest {
  
      private DefaultCamelContext camelContext;
  
      private final ObjectMapper mapper = new ObjectMapper();
  
      private MaskField processor;
  
      private final String baseJson = "{" + "\n" +
                                      "  \"name\" : \"Rajesh Koothrappali\"" + "\n" +
                                      "}";
  
      @BeforeEach
      void setup() {
          camelContext = new DefaultCamelContext();
          processor = new MaskField();
      }
  
      @Test
      void shouldMaskField() throws Exception {
          Exchange exchange = new DefaultExchange(camelContext);
  
          exchange.getMessage().setBody(mapper.readTree(baseJson));
  
          JsonNode s = processor.process("name", "xxxx", exchange);
          Assertions.assertEquals("\"xxxx\"", s.get("name").toString());
      }
  
      @Test
      void shouldMaskFieldWithNull() throws Exception {
          Exchange exchange = new DefaultExchange(camelContext);
  
          exchange.getMessage().setBody(mapper.readTree(baseJson));
  
          JsonNode s = processor.process("name", null, exchange);
          Assertions.assertEquals("\"\"", s.get("name").toString());
      }
  
      @Test
      void shouldMaskFieldList() throws Exception {
          Map<String, List<String>> names = new HashMap<>();
          Exchange exchange = new DefaultExchange(camelContext);
          List<String> els = new ArrayList<>();
          els.add("Sheldon");
          els.add("Rajesh");
          els.add("Leonard");
          names.put("names", els);
  
          exchange.getMessage().setBody(mapper.writeValueAsString(names));
  
          JsonNode s = processor.process("names", null, exchange);
          Assertions.assertEquals("[]", s.get("names").toString());
      }
  }
  