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.dataformat.bindy.fixed.multibytes;
  
  import java.nio.charset.StandardCharsets;
  
  import org.apache.camel.EndpointInject;
  import org.apache.camel.Exchange;
  import org.apache.camel.Produce;
  import org.apache.camel.ProducerTemplate;
  import org.apache.camel.builder.RouteBuilder;
  import org.apache.camel.component.mock.MockEndpoint;
  import org.apache.camel.dataformat.bindy.annotation.DataField;
  import org.apache.camel.dataformat.bindy.annotation.FixedLengthRecord;
  import org.apache.camel.dataformat.bindy.fixed.BindyFixedLengthDataFormat;
  import org.apache.camel.test.junit5.CamelTestSupport;
  import org.junit.jupiter.api.Test;
  
  public class BindyCountGraphemeTest extends CamelTestSupport {
  
      @Produce("direct:in")
      private ProducerTemplate producer;
  
      @EndpointInject("mock:result")
      private MockEndpoint result;
  
      // *************************************************************************
      // TESTS
      // *************************************************************************
  
      /**
       * Let's test a situation where graphemes are not equals to code points.
       */
      @Test
      public void testCountGrapheme() throws Exception {
  
          // camel + man face palming => 2 graphemes
          String firstAndSecondGrapheme = "\uD83D\uDC2A\uD83E\uDD26\uD83C\uDFFC\u200D\u2642\uFE0F";
          // d with diaresis => 1 grapheme
          String thirdGrapheme = "d\u0308";
  
          result.expectedMessagesMatches(exchange -> {
              TestRecord record = exchange.getIn().getBody(TestRecord.class);
              boolean beginIsOk = firstAndSecondGrapheme.equals(record.getFirstAndSecondGrapheme());
              boolean endIsOk = thirdGrapheme.equals(record.getThirdGrapheme());
              return beginIsOk && endIsOk;
          });
  
          producer.sendBody(firstAndSecondGrapheme + thirdGrapheme);
  
          result.assertIsSatisfied();
      }
  
      // *************************************************************************
      // ROUTES
      // *************************************************************************
  
      @Override
      protected RouteBuilder createRouteBuilder() {
          RouteBuilder routeBuilder = new RouteBuilder() {
  
              @Override
              public void configure() {
                  from("direct:in").setHeader(Exchange.CHARSET_NAME, constant(StandardCharsets.UTF_8.name()))
                          .unmarshal(new BindyFixedLengthDataFormat(TestRecord.class))
                          .to("mock:result");
              }
          };
  
          return routeBuilder;
      }
  
      @FixedLengthRecord(countGrapheme = true)
      public static class TestRecord {
  
          @DataField(pos = 1, length = 2)
          private String firstAndSecondGrapheme;
  
          @DataField(pos = 2, length = 1)
          private String thirdGrapheme;
  
          public String getFirstAndSecondGrapheme() {
              return firstAndSecondGrapheme;
          }
  
          public void setFirstAndSecondGrapheme(String firstAndSecondGrapheme) {
              this.firstAndSecondGrapheme = firstAndSecondGrapheme;
          }
  
          public String getThirdGrapheme() {
              return thirdGrapheme;
          }
  
          public void setThirdGrapheme(String thirdGrapheme) {
              this.thirdGrapheme = thirdGrapheme;
          }
      }
  }
  