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
|
// 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 CsvHelper.Configuration;
using CsvHelper.TypeConversion;
using Xunit;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace CsvHelper.Tests.TypeConversion
{
public class DefaultConverterTests
{
[Fact]
public void ConvertToString_ValueIsNull_ReturnsEmptyString()
{
var converter = new DefaultTypeConverter();
var memberMapData = new MemberMapData(null)
{
};
var value = converter.ConvertToString(null, null, memberMapData);
Assert.Equal(string.Empty, value);
}
[Fact]
public void ConvertToString_SingleNullValue_UsesValue()
{
var converter = new DefaultTypeConverter();
var memberMapData = new MemberMapData(null)
{
TypeConverterOptions = { NullValues = { "Foo" } },
};
var value = converter.ConvertToString(null, null, memberMapData);
Assert.Equal("Foo", value);
}
[Fact]
public void ConvertToString_MultipleNullValues_UsesFirstValue()
{
var converter = new DefaultTypeConverter();
var memberMapData = new MemberMapData(null)
{
TypeConverterOptions = { NullValues = { "Foo", "Bar" } },
};
var value = converter.ConvertToString(null, null, memberMapData);
Assert.Equal("Foo", value);
}
[Fact]
public void WriteField_NullValue_UsesValue()
{
using (var writer = new StringWriter())
using (var csv = new CsvWriter(writer, CultureInfo.InvariantCulture))
{
csv.Context.TypeConverterOptionsCache.GetOptions<string>().NullValues.Add("Foo");
csv.WriteField<string>(null);
csv.Flush();
writer.Flush();
Assert.Equal("Foo", writer.ToString());
}
}
}
}
|
