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.jacksonxml;
  
  import com.fasterxml.jackson.databind.DeserializationFeature;
  import com.fasterxml.jackson.dataformat.xml.deser.FromXmlParser;
  import org.apache.camel.builder.RouteBuilder;
  import org.apache.camel.component.mock.MockEndpoint;
  import org.apache.camel.test.junit5.CamelTestSupport;
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.Test;
  
  public class JacksonEmptyElementsAsNullTest extends CamelTestSupport {
  
      @Test
      public void testEmptyAsNull() throws Exception {
          MockEndpoint mock = getMockEndpoint("mock:result");
          mock.expectedMessageCount(4);
  
          template.sendBody("direct:start", "<pojo><name>Jack</name></pojo>");
          template.sendBody("direct:start", "<pojo><name></name></pojo>");
          template.sendBody("direct:start", "<pojo><name/></pojo>");
          template.sendBody("direct:start", "<pojo></pojo>");
  
          MockEndpoint.assertIsSatisfied(context);
  
          Assertions.assertEquals("Jack", mock.getReceivedExchanges().get(0).getMessage().getBody(TestPojo.class).getName());
          // <name></name> and <name/> are NOT the same as empty string vs null
          Assertions.assertEquals("", mock.getReceivedExchanges().get(1).getMessage().getBody(TestPojo.class).getName());
          Assertions.assertNull(mock.getReceivedExchanges().get(2).getMessage().getBody(TestPojo.class).getName());
          Assertions.assertNull(mock.getReceivedExchanges().get(3).getMessage().getBody(TestPojo.class).getName());
      }
  
      @Test
      public void testDefault() throws Exception {
          MockEndpoint mock = getMockEndpoint("mock:result2");
          mock.expectedMessageCount(4);
  
          template.sendBody("direct:start2", "<pojo><name>Jack</name></pojo>");
          template.sendBody("direct:start2", "<pojo><name></name></pojo>");
          template.sendBody("direct:start2", "<pojo><name/></pojo>");
          template.sendBody("direct:start2", "<pojo></pojo>");
  
          MockEndpoint.assertIsSatisfied(context);
  
          Assertions.assertEquals("Jack", mock.getReceivedExchanges().get(0).getMessage().getBody(TestPojo.class).getName());
          // <name></name> and <name/> are both the same as an empty string
          Assertions.assertEquals("", mock.getReceivedExchanges().get(1).getMessage().getBody(TestPojo.class).getName());
          Assertions.assertEquals("", mock.getReceivedExchanges().get(2).getMessage().getBody(TestPojo.class).getName());
          Assertions.assertNull(mock.getReceivedExchanges().get(3).getMessage().getBody(TestPojo.class).getName());
      }
  
      @Override
      protected RouteBuilder createRouteBuilder() {
          return new RouteBuilder() {
  
              @Override
              public void configure() {
                  context.setStreamCaching(false);
  
                  JacksonXMLDataFormat format = new JacksonXMLDataFormat(TestPojo.class);
                  format.enableFeature(FromXmlParser.Feature.EMPTY_ELEMENT_AS_NULL);
                  format.disableFeature(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
                  from("direct:start").unmarshal(format).to("mock:result");
  
                  JacksonXMLDataFormat format2 = new JacksonXMLDataFormat(TestPojo.class);
                  format.disableFeature(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
                  from("direct:start2").unmarshal(format2).to("mock:result2");
              }
          };
      }
  
  }
  