/*
    * 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 static org.junit.jupiter.api.Assertions.assertNotNull;
  
  import java.io.IOException;
  import java.io.StringReader;
  
  import org.apache.commons.csv.CSVFormat;
  import org.apache.commons.csv.CSVParser;
  import org.apache.commons.csv.CSVRecord;
  import org.junit.jupiter.api.Test;
  
  class JiraCsv149Test {
  
      private static final String CR_LF = "\r\n";
  
      @Test
      void testJiraCsv149EndWithEOL() throws IOException {
          testJiraCsv149EndWithEolAtEof(true);
      }
  
      private void testJiraCsv149EndWithEolAtEof(final boolean eolAtEof) throws IOException {
          String source = "A,B,C,D" + CR_LF + "a1,b1,c1,d1" + CR_LF + "a2,b2,c2,d2";
          if (eolAtEof) {
              source += CR_LF;
          }
          final StringReader reader = new StringReader(source);
          // @formatter:off
          final CSVFormat format = CSVFormat.RFC4180.builder()
              .setHeader()
              .setSkipHeaderRecord(true)
              .setQuote('"')
              .get();
          // @formatter:on
          int lineCounter = 2;
          try (CSVParser parser = CSVParser.builder().setReader(reader).setFormat(format).get()) {
              for (final CSVRecord record : parser) {
                  assertNotNull(record);
                  assertEquals(lineCounter++, parser.getCurrentLineNumber());
              }
          }
      }
  
      @Test
      void testJiraCsv149EndWithoutEOL() throws IOException {
          testJiraCsv149EndWithEolAtEof(false);
      }
  }