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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 CsvHelper.Configuration;
using Xunit;
namespace CsvHelper.Tests.Parsing
{
public class CommentTests
{
[Fact]
public void CommentThatCrossesBuffersShouldNotAddToFieldTest()
{
var config = new CsvConfiguration(CultureInfo.InvariantCulture)
{
AllowComments = true,
BufferSize = 16
};
using (var stream = new MemoryStream())
using (var reader = new StreamReader(stream))
using (var writer = new StreamWriter(stream))
using (var parser = new CsvParser(reader, config))
{
writer.Write("1,2\r\n");
writer.Write("#abcdefghijklmnop\r\n");
writer.Write("3,4");
writer.Flush();
stream.Position = 0;
parser.Read();
parser.Read();
Assert.Equal("3", parser[0]);
Assert.Equal("4", parser[1]);
}
}
[Fact]
public void WriteCommentCharInFieldWithCommentsOffTest()
{
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.WriteField("#no comment");
csv.NextRecord();
writer.Flush();
stream.Position = 0;
var result = reader.ReadToEnd();
Assert.Equal("#no comment\r\n", result);
}
}
[Fact]
public void WriteCommentCharInFieldWithCommentsOnTest()
{
var config = new CsvConfiguration(CultureInfo.InvariantCulture)
{
AllowComments = true,
};
using (var stream = new MemoryStream())
using (var reader = new StreamReader(stream))
using (var writer = new StreamWriter(stream))
using (var csv = new CsvWriter(writer, config))
{
csv.WriteField("#no comment");
csv.NextRecord();
writer.Flush();
stream.Position = 0;
var result = reader.ReadToEnd();
Assert.Equal("#no comment\r\n", result);
}
}
[Fact]
public void WriteCommentWithCommentsOffTest()
{
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.WriteComment("comment\"has\" quote");
csv.NextRecord();
writer.Flush();
stream.Position = 0;
var result = reader.ReadToEnd();
Assert.Equal("#comment\"has\" quote\r\n", result);
}
}
[Fact]
public void WriteCommentWithCommentsOnTest()
{
var config = new CsvConfiguration(CultureInfo.InvariantCulture)
{
AllowComments = true,
};
using (var stream = new MemoryStream())
using (var reader = new StreamReader(stream))
using (var writer = new StreamWriter(stream))
using (var csv = new CsvWriter(writer, config))
{
csv.WriteComment("comment\"has\" quote");
csv.NextRecord();
writer.Flush();
stream.Position = 0;
var result = reader.ReadToEnd();
Assert.Equal("#comment\"has\" quote\r\n", result);
}
}
}
}
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