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    * 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
    *
   *   https://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.commons.csv.issues;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  import java.io.BufferedReader;
  import java.io.IOException;
  import java.io.InputStreamReader;
  import java.io.Reader;
  
  import org.apache.commons.csv.CSVFormat;
  import org.apache.commons.csv.CSVParser;
  import org.apache.commons.csv.CSVRecord;
  import org.apache.commons.csv.QuoteMode;
  import org.junit.jupiter.api.Test;
  
  class JiraCsv167Test {
  
      private Reader getTestReader() {
          return new InputStreamReader(
              ClassLoader.getSystemClassLoader().getResourceAsStream("org/apache/commons/csv/csv-167/sample1.csv"));
      }
  
      @Test
      void testParse() throws IOException {
          int totcomment = 0;
          int totrecs = 0;
          try (Reader reader = getTestReader(); BufferedReader br = new BufferedReader(reader)) {
              String s = null;
              boolean lastWasComment = false;
              while ((s = br.readLine()) != null) {
                  if (s.startsWith("#")) {
                      if (!lastWasComment) { // comments are merged
                          totcomment++;
                      }
                      lastWasComment = true;
                  } else {
                      totrecs++;
                      lastWasComment = false;
                  }
              }
          }
          final CSVFormat format = CSVFormat.DEFAULT.builder()
          // @formatter:off
              .setAllowMissingColumnNames(false)
              .setCommentMarker('#')
              .setDelimiter(',')
              .setEscape('\\')
              .setHeader("author", "title", "publishDate")
              .setHeaderComments("headerComment")
              .setNullString("NULL")
              .setIgnoreEmptyLines(true)
              .setIgnoreSurroundingSpaces(true)
              .setQuote('"')
              .setQuoteMode(QuoteMode.ALL)
              .setRecordSeparator('\n')
              .setSkipHeaderRecord(false)
              .get();
          // @formatter:on
          int comments = 0;
          int records = 0;
          try (Reader reader = getTestReader(); CSVParser parser = format.parse(reader)) {
              for (final CSVRecord csvRecord : parser) {
                  records++;
                  if (csvRecord.hasComment()) {
                      comments++;
                  }
              }
          }
          // Comment lines are concatenated, in this example 4 lines become 2 comments.
          assertEquals(totcomment, comments);
          assertEquals(totrecs, records); // records includes the header
      }
  }