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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.Text;
using Xunit;
namespace CsvHelper.Tests.Parsing
{
public class BufferSplittingCrLnTests
{
[Fact]
public void Read_BufferSplitsCrLf_BufferNeedsResize_Parses()
{
var s = new StringBuilder();
s.Append("1,0000000000321\r\n");
s.Append("3,4\r\n");
var config = new CsvHelper.Configuration.CsvConfiguration(CultureInfo.InvariantCulture)
{
BufferSize = 16,
NewLine = "\r\n",
};
using (var reader = new StringReader(s.ToString()))
using (var parser = new CsvParser(reader, config))
{
parser.Read();
Assert.Equal("1", parser[0]);
Assert.Equal("0000000000321", parser[1]);
}
}
[Fact]
public void Read_BufferSplitsCrLf_NoBufferResize_DoesntAddExtraField()
{
var s = new StringBuilder();
s.Append("1,200000\r\n");
s.Append("3,400000\r\n");
s.Append("5,600\r\n");
var config = new CsvHelper.Configuration.CsvConfiguration(CultureInfo.InvariantCulture)
{
BufferSize = 16,
NewLine = "\r\n",
};
using (var reader = new StringReader(s.ToString()))
using (var parser = new CsvParser(reader, config))
{
parser.Read();
parser.Read();
parser.Read();
Assert.Equal(2, parser.Count);
}
}
[Fact]
public void Read_BufferSplitsCrLf_NoBufferResize_RawRecordIsCorrect()
{
var s = new StringBuilder();
s.Append("1,200000\r\n");
s.Append("3,400000\r\n");
s.Append("5,600\r\n");
var config = new CsvHelper.Configuration.CsvConfiguration(CultureInfo.InvariantCulture)
{
BufferSize = 16,
NewLine = "\r\n",
};
using (var reader = new StringReader(s.ToString()))
using (var parser = new CsvParser(reader, config))
{
parser.Read();
parser.Read();
parser.Read();
Assert.Equal("5,600\r\n", parser.RawRecord);
}
}
[Fact]
public void BufferSplitsCrLfWithLastFieldQuotedTest()
{
var s = new StringBuilder();
s.Append("1,200000\r\n");
s.Append("3,4000\r\n");
s.Append("5,\"600\"\r\n");
var config = new CsvHelper.Configuration.CsvConfiguration(CultureInfo.InvariantCulture)
{
BufferSize = 16,
NewLine = "\r\n",
};
using (var reader = new StringReader(s.ToString()))
using (var parser = new CsvParser(reader, config))
{
parser.Read();
parser.Read();
parser.Read();
Assert.Equal(2, parser.Count);
Assert.Equal("5,\"600\"\r\n", parser.RawRecord);
}
}
}
}
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