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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 CsvHelper.Configuration;
using Xunit;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
namespace CsvHelper.Tests.Writing
{
public class InterfaceTests
{
[Fact]
public void WriteRecordsGenericTest()
{
using (var stream = new MemoryStream())
using (var reader = new StreamReader(stream))
using (var writer = new StreamWriter(stream))
using (var csv = new CsvWriter(writer, CultureInfo.InvariantCulture))
{
var records = new List<IRecord>();
IRecord record = new Record { A = 1, B = 2 };
records.Add(record);
record = new Record { A = 3, B = 4 };
records.Add(record);
csv.Context.RegisterClassMap<RecordMap>();
csv.WriteRecords(records);
writer.Flush();
stream.Position = 0;
var expected = "RenameA\r\n1\r\n3\r\n";
Assert.Equal(expected, reader.ReadToEnd());
}
}
[Fact]
public void WriteRecordTest()
{
using (var stream = new MemoryStream())
using (var reader = new StreamReader(stream))
using (var writer = new StreamWriter(stream))
using (var csv = new CsvWriter(writer, CultureInfo.InvariantCulture))
{
csv.Context.RegisterClassMap<RecordMap>();
csv.WriteHeader<IRecord>();
csv.NextRecord();
IRecord record = new Record { A = 1, B = 2 };
csv.WriteRecord(record);
csv.NextRecord();
record = new Record { A = 3, B = 4 };
csv.WriteRecord(record);
csv.NextRecord();
writer.Flush();
stream.Position = 0;
var expected = "RenameA\r\n1\r\n3\r\n";
Assert.Equal(expected, reader.ReadToEnd());
}
}
private interface IRecord
{
int A { get; set; }
int B { get; set; }
}
private class Record : IRecord
{
public int A { get; set; }
public int B { get; set; }
}
private sealed class RecordMap : ClassMap<IRecord>
{
public RecordMap()
{
Map(m => m.A).Name("RenameA");
}
}
}
}
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