1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * https://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19
20 package org.apache.commons.csv.issues;
21
22 import static org.junit.jupiter.api.Assertions.assertThrows;
23
24 import java.io.IOException;
25 import java.io.StringReader;
26
27 import org.apache.commons.csv.CSVFormat;
28 import org.apache.commons.csv.CSVParser;
29 import org.junit.jupiter.api.Test;
30
31 /**
32 * Tests https://issues.apache.org/jira/browse/CSV-257
33 */
34 class JiraCsv257Test {
35
36 private static final String INPUT = ",";
37
38 @Test
39 void testHeaderBuilder() throws IOException {
40 // @formatter:off
41 final CSVFormat format = CSVFormat.RFC4180.builder()
42 .setDelimiter(INPUT.charAt(0))
43 .setHeader()
44 .setSkipHeaderRecord(true)
45 .setIgnoreSurroundingSpaces(true)
46 .get();
47 // @formatter:on
48 // Document the current behavior: Throw a IllegalArgumentException is a header name is missing.
49 assertThrows(IllegalArgumentException.class, () -> {
50 try (CSVParser parser = CSVParser.parse(INPUT, format)) {
51 // empty
52 }
53 });
54 }
55
56 @Test
57 void testHeaderDepreacted() throws IOException {
58 // @formatter:off
59 final CSVFormat format = CSVFormat.RFC4180
60 .withDelimiter(INPUT.charAt(0))
61 .withFirstRecordAsHeader()
62 .withIgnoreSurroundingSpaces();
63 // @formatter:on
64 // Document the current behavior: Throw a IllegalArgumentException is a header name is missing.
65 assertThrows(IllegalArgumentException.class, () -> {
66 try (CSVParser parser = new CSVParser(new StringReader(INPUT), format)) {
67 // empty
68 }
69 });
70 }
71
72 @Test
73 void testNoHeaderBuilder() throws IOException {
74 // @formatter:off
75 final CSVFormat format = CSVFormat.RFC4180.builder()
76 .setDelimiter(INPUT.charAt(0))
77 .setIgnoreSurroundingSpaces(true)
78 .get();
79 // @formatter:on
80 try (CSVParser parser = CSVParser.parse(INPUT, format)) {
81 // empty
82 }
83 }
84 }