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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;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace CsvHelper.Tests.Parsing
{
public class CsvModeTests
{
[Fact]
public void Read_HasEscapedDelimiter_Parses()
{
var s = new StringBuilder();
s.Append("a\\,b,c\n");
var config = new CsvConfiguration(CultureInfo.InvariantCulture)
{
Mode = CsvMode.Escape,
Escape = '\\',
};
using (var reader = new StringReader(s.ToString()))
using (var parser = new CsvParser(reader, config))
{
Assert.True(parser.Read());
Assert.Equal("a,b", parser[0]);
Assert.Equal("c", parser[1]);
Assert.False(parser.Read());
}
}
[Fact]
public void Read_HasEscapedLineEnding_Parses()
{
var s = new StringBuilder();
s.Append("a\\\nb,c\n");
var config = new CsvConfiguration(CultureInfo.InvariantCulture)
{
Mode = CsvMode.Escape,
Escape = '\\',
};
using (var reader = new StringReader(s.ToString()))
using (var parser = new CsvParser(reader, config))
{
Assert.True(parser.Read());
Assert.Equal("a\nb", parser[0]);
Assert.Equal("c", parser[1]);
Assert.False(parser.Read());
}
}
[Fact]
public void Read_NoEscapeMode_HasRFC4180Format_Parses()
{
var s = new StringBuilder();
s.Append("a,\"b,\"\"c\r\nd\",e");
var config = new CsvConfiguration(CultureInfo.InvariantCulture)
{
Mode = CsvMode.NoEscape,
Escape = '"',
};
using (var reader = new StringReader(s.ToString()))
using (var parser = new CsvParser(reader, config))
{
Assert.True(parser.Read());
Assert.Equal("a", parser[0]);
Assert.Equal("\"b", parser[1]);
Assert.Equal("\"\"c", parser[2]);
Assert.True(parser.Read());
Assert.Equal("d\"", parser[0]);
Assert.Equal("e", parser[1]);
}
}
[Fact]
public void Read_NoEscapeMode_HasEscapeFormat_Parses()
{
var s = new StringBuilder();
s.Append("a,\\b\\,c\\\nd,e");
var config = new CsvConfiguration(CultureInfo.InvariantCulture)
{
Mode = CsvMode.NoEscape,
Escape = '\\',
};
using (var reader = new StringReader(s.ToString()))
using (var parser = new CsvParser(reader, config))
{
Assert.True(parser.Read());
Assert.Equal("a", parser[0]);
Assert.Equal("\\b\\", parser[1]);
Assert.Equal("c\\", parser[2]);
Assert.True(parser.Read());
Assert.Equal("d", parser[0]);
Assert.Equal("e", parser[1]);
}
}
}
}
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