1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
|
// Copyright 2009-2022 Josh Close
// This file is a part of CsvHelper and is dual licensed under MS-PL and Apache 2.0.
// See LICENSE.txt for details or visit http://www.opensource.org/licenses/ms-pl.html for MS-PL and http://opensource.org/licenses/Apache-2.0 for Apache 2.0.
// https://github.com/JoshClose/CsvHelper
using System.Globalization;
using System.IO;
using CsvHelper.Configuration;
using Xunit;
namespace CsvHelper.Tests.Reading
{
public class MultipleHeadersTests
{
[Fact]
public void ReadWithoutMapTest()
{
using (var stream = new MemoryStream())
using (var reader = new StreamReader(stream))
using (var writer = new StreamWriter(stream))
using (var csv = new CsvReader(reader, CultureInfo.InvariantCulture))
{
writer.WriteLine("A,B");
writer.WriteLine("1,one");
writer.WriteLine("Y,Z");
writer.WriteLine("two,2");
writer.Flush();
stream.Position = 0;
csv.Read();
csv.ReadHeader();
csv.Read();
Assert.Equal(1, csv.GetField<int>("A"));
Assert.Equal("one", csv.GetField("B"));
csv.Read();
csv.ReadHeader();
csv.Read();
Assert.Equal("two", csv.GetField("Y"));
Assert.Equal(2, csv.GetField<int>("Z"));
}
}
[Fact]
public void ReadWithMapTest()
{
using (var stream = new MemoryStream())
using (var reader = new StreamReader(stream))
using (var writer = new StreamWriter(stream))
using (var csv = new CsvReader(reader, CultureInfo.InvariantCulture))
{
writer.WriteLine("A,B");
writer.WriteLine("1,one");
writer.WriteLine("Y,Z");
writer.WriteLine("two,2");
writer.Flush();
stream.Position = 0;
csv.Context.RegisterClassMap<AlphaMap>();
csv.Context.RegisterClassMap<OmegaMap>();
csv.Read();
csv.ReadHeader();
csv.Read();
var alphaRecord = csv.GetRecord<Alpha>();
Assert.Equal(1, alphaRecord.A);
Assert.Equal("one", alphaRecord.B);
csv.Read();
csv.ReadHeader();
csv.Read();
var omegaRecord = csv.GetRecord<Omega>();
Assert.Equal("two", omegaRecord.Y);
Assert.Equal(2, omegaRecord.Z);
}
}
private class Alpha
{
public int A { get; set; }
public string B { get; set; }
}
private class Omega
{
public string Y { get; set; }
public int Z { get; set; }
}
private sealed class AlphaMap : ClassMap<Alpha>
{
public AlphaMap()
{
Map(m => m.A);
Map(m => m.B);
}
}
private sealed class OmegaMap : ClassMap<Omega>
{
public OmegaMap()
{
Map(m => m.Y);
Map(m => m.Z);
}
}
}
}
|
