/*
    * 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.apache.commons.csv.CsvAssertions.assertValuesEquals;
  
  import java.io.BufferedReader;
  import java.io.IOException;
  import java.nio.charset.StandardCharsets;
  import java.nio.file.Files;
  import java.nio.file.Paths;
  import java.util.Iterator;
  
  import org.apache.commons.csv.CSVFormat;
  import org.apache.commons.csv.CSVParser;
  import org.apache.commons.csv.CSVRecord;
  import org.junit.jupiter.api.Test;
  
  /**
   * Tests https://issues.apache.org/jira/browse/CSV-254.
   */
  class JiraCsv254Test {
  
      @Test
      void test() throws IOException {
          final CSVFormat csvFormat = CSVFormat.POSTGRESQL_CSV;
          try (BufferedReader reader = Files.newBufferedReader(Paths.get("src/test/resources/org/apache/commons/csv/CSV-254/csv-254.csv"),
                  StandardCharsets.UTF_8); CSVParser parser = csvFormat.parse(reader)) {
              final Iterator<CSVRecord> csvRecords = parser.iterator();
              assertValuesEquals(new String[] { "AA", "33", null }, csvRecords.next());
              assertValuesEquals(new String[] { "AA", null, "" }, csvRecords.next());
              assertValuesEquals(new String[] { null, "33", "CC" }, csvRecords.next());
          }
      }
  }