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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;
using System.Globalization;
using System.IO;
using CsvHelper.Configuration;
using Xunit;
namespace CsvHelper.Tests.Parsing
{
public class BadDataTests
{
[Fact]
public void CallbackTest()
{
string rawRecord = null;
var config = new CsvConfiguration(CultureInfo.InvariantCulture)
{
BadDataFound = args => rawRecord = args.Context.Parser.RawRecord.ToString(),
};
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(" a\"bc\",d\r\n"); // a"bc",d\r\n
writer.Flush();
stream.Position = 0;
parser.Read();
var record = parser.Record;
Assert.Equal(" a\"bc\",d\r\n", rawRecord);
rawRecord = null;
parser.Read();
record = parser.Record;
Assert.Null(rawRecord);
}
}
[Fact]
public void ThrowExceptionTest()
{
using (var stream = new MemoryStream())
using (var reader = new StreamReader(stream))
using (var writer = new StreamWriter(stream))
using (var parser = new CsvParser(reader, CultureInfo.InvariantCulture))
{
writer.WriteLine("1,2");
writer.WriteLine(" a\"bc\",d");
writer.Flush();
stream.Position = 0;
parser.Read();
try
{
parser.Read();
var record = parser.Record;
throw new XUnitException("Failed to throw exception on bad data.");
}
catch (BadDataException) { }
}
}
[Fact]
public void IgnoreQuotesTest()
{
var config = new CsvConfiguration(CultureInfo.InvariantCulture)
{
Mode = CsvMode.Escape,
Escape = '\\',
};
using (var stream = new MemoryStream())
using (var writer = new StreamWriter(stream))
using (var reader = new StreamReader(stream))
using (var parser = new CsvParser(reader, config))
{
writer.Write("one,2\"two,three\n");
writer.Flush();
stream.Position = 0;
parser.Read();
Assert.Equal("2\"two", parser[1]);
}
}
[Fact]
public void LineBreakInQuotedFieldIsBadDataCrTest()
{
var config = new CsvConfiguration(CultureInfo.InvariantCulture)
{
LineBreakInQuotedFieldIsBadData = true,
};
using (var reader = new StringReader("\"a\rb\""))
using (var parser = new CsvParser(reader, config))
{
parser.Read();
Assert.Throws<BadDataException>(() => parser.Record);
}
}
[Fact]
public void LineBreakInQuotedFieldIsBadDataLfTest()
{
var config = new CsvConfiguration(CultureInfo.InvariantCulture)
{
LineBreakInQuotedFieldIsBadData = true,
};
using (var reader = new StringReader("\"a\nb\""))
using (var parser = new CsvParser(reader, config))
{
parser.Read();
Assert.Throws<BadDataException>(() => parser.Record);
}
}
[Fact]
public void LineBreakInQuotedFieldIsBadDataCrLfTest()
{
var config = new CsvConfiguration(CultureInfo.InvariantCulture)
{
LineBreakInQuotedFieldIsBadData = true,
};
using (var reader = new StringReader("\"a\r\nb\""))
using (var parser = new CsvParser(reader, config))
{
parser.Read();
Assert.Throws<BadDataException>(() => parser.Record);
}
}
[Fact]
public void Read_AccessingParserRecordInBadDataFound_ThrowsParserException()
{
var badstring = new StringReader("Fish,\"DDDD");
string[] record = new string[0];
var cfg = new CsvConfiguration(CultureInfo.CurrentCulture)
{
BadDataFound = args => record = args.Context.Parser.Record
};
var parser = new CsvParser(badstring, cfg);
parser.Read();
Assert.Throws<ParserException>(() => parser[1]);
}
}
}
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