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// 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 System.Linq;
using System.Text;
using CsvHelper.Configuration;
using Xunit;
namespace CsvHelper.Tests
{
public class CsvReaderDefaultValueTests
{
[Fact]
public void DefaultValueTest()
{
using (var stream = new MemoryStream())
using (var writer = new StreamWriter(stream))
using (var reader = new StreamReader(stream))
using (var csvReader = new CsvReader(reader, CultureInfo.InvariantCulture))
{
writer.WriteLine("Id,Name,Order");
writer.WriteLine(",,");
writer.WriteLine("2,two,2");
writer.WriteLine(",three,");
writer.Flush();
stream.Position = 0;
csvReader.Context.RegisterClassMap<TestMap>();
var records = csvReader.GetRecords<Test>().ToList();
var record = records[0];
Assert.Equal(-1, record.Id);
Assert.Null(record.Name);
Assert.Equal(-2, record.Order);
record = records[1];
Assert.Equal(2, record.Id);
Assert.Equal("two", record.Name);
}
}
[Fact]
public void DefaultStringValueTest()
{
using (var stream = new MemoryStream())
using (var writer = new StreamWriter(stream))
using (var reader = new StreamReader(stream))
using (var csvReader = new CsvReader(reader, CultureInfo.InvariantCulture))
{
writer.WriteLine("Id,Name,Order");
writer.WriteLine(",,");
writer.WriteLine("2,two,2");
writer.WriteLine(",three,");
writer.Flush();
stream.Position = 0;
csvReader.Context.RegisterClassMap<TestStringMap>();
var records = csvReader.GetRecords<Test>().ToList();
var record = records[0];
Assert.Equal(-1, record.Id);
Assert.Null(record.Name);
Assert.Equal(-2, record.Order);
record = records[1];
Assert.Equal(2, record.Id);
Assert.Equal("two", record.Name);
}
}
private class Test
{
public int Id { get; set; }
public string Name { get; set; }
public int Order { get; set; }
}
private sealed class TestMap : ClassMap<Test>
{
public TestMap()
{
Map(m => m.Id).Default(-1);
Map(m => m.Name).Default((string)null);
Map(m => m.Order).Default(-2);
}
}
private sealed class TestStringMap : ClassMap<Test>
{
public TestStringMap()
{
Map(m => m.Id).Default("-1");
Map(m => m.Name).Default(null);
Map(m => m.Order).Default("-2");
}
}
}
}
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