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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 System.Linq;
using System.Threading;
using CsvHelper.Configuration;
using CsvHelper.TypeConversion;
using Xunit;
namespace CsvHelper.Tests
{
public class CsvReaderErrorMessageTests
{
public CsvReaderErrorMessageTests()
{
Thread.CurrentThread.CurrentCulture = new CultureInfo("en-US");
}
[Fact]
public void FirstColumnEmptyFirstRowErrorWithNoHeaderTest()
{
var config = new CsvConfiguration(CultureInfo.InvariantCulture)
{
HasHeaderRecord = false,
AllowComments = true,
};
using (var stream = new MemoryStream())
using (var writer = new StreamWriter(stream))
using (var reader = new StreamReader(stream))
using (var csvReader = new CsvReader(reader, config))
{
csvReader.Context.RegisterClassMap<Test1Map>();
writer.WriteLine(",one");
writer.WriteLine("2,two");
writer.Flush();
stream.Position = 0;
try
{
var records = csvReader.GetRecords<Test1>().ToList();
throw new Exception();
}
catch (TypeConverterException ex)
{
Assert.Equal(1, ex.Context.Parser.Row);
Assert.Equal(0, ex.Context.Reader.CurrentIndex);
}
}
}
[Fact]
public void FirstColumnEmptySecondRowErrorWithHeader()
{
var config = new CsvConfiguration(CultureInfo.InvariantCulture)
{
AllowComments = true,
};
using (var stream = new MemoryStream())
using (var writer = new StreamWriter(stream))
using (var reader = new StreamReader(stream))
using (var csvReader = new CsvReader(reader, config))
{
csvReader.Context.RegisterClassMap<Test1Map>();
writer.WriteLine("IntColumn,StringColumn");
writer.WriteLine("1,one");
writer.WriteLine(",two");
writer.Flush();
stream.Position = 0;
try
{
var records = csvReader.GetRecords<Test1>().ToList();
throw new Exception();
}
catch (TypeConverterException ex)
{
Assert.Equal(3, ex.Context.Parser.Row);
Assert.Equal(0, ex.Context.Reader.CurrentIndex);
}
}
}
[Fact]
public void FirstColumnEmptyErrorWithHeaderAndCommentRowTest()
{
var config = new CsvConfiguration(CultureInfo.InvariantCulture)
{
AllowComments = true,
};
using (var stream = new MemoryStream())
using (var writer = new StreamWriter(stream))
using (var reader = new StreamReader(stream))
using (var csvReader = new CsvReader(reader, config))
{
csvReader.Context.RegisterClassMap<Test1Map>();
writer.WriteLine("IntColumn,StringColumn");
writer.WriteLine("# comment");
writer.WriteLine();
writer.WriteLine(",one");
writer.WriteLine("2,two");
writer.Flush();
stream.Position = 0;
try
{
var records = csvReader.GetRecords<Test1>().ToList();
throw new Exception();
}
catch (TypeConverterException ex)
{
Assert.Equal(4, ex.Context.Parser.Row);
Assert.Equal(0, ex.Context.Reader.CurrentIndex);
}
}
}
[Fact]
public void FirstColumnErrorTest()
{
using (var stream = new MemoryStream())
using (var writer = new StreamWriter(stream))
using (var reader = new StreamReader(stream))
using (var csvReader = new CsvReader(reader, CultureInfo.InvariantCulture))
{
csvReader.Context.RegisterClassMap<Test1Map>();
writer.WriteLine("IntColumn,StringColumn");
writer.WriteLine();
writer.WriteLine("one,one");
writer.WriteLine("2,two");
writer.Flush();
stream.Position = 0;
try
{
var records = csvReader.GetRecords<Test1>().ToList();
throw new Exception();
}
catch (TypeConverterException ex)
{
Assert.Equal(3, ex.Context.Parser.Row);
Assert.Equal(0, ex.Context.Reader.CurrentIndex);
}
}
}
[Fact]
public void SecondColumnEmptyErrorTest()
{
using (var stream = new MemoryStream())
using (var writer = new StreamWriter(stream))
using (var reader = new StreamReader(stream))
using (var csvReader = new CsvReader(reader, CultureInfo.InvariantCulture))
{
csvReader.Context.RegisterClassMap<Test2Map>();
writer.WriteLine("StringColumn,IntColumn");
writer.WriteLine("one,");
writer.WriteLine("two,2");
writer.Flush();
stream.Position = 0;
try
{
var records = csvReader.GetRecords<Test2>().ToList();
throw new Exception();
}
catch (TypeConverterException ex)
{
Assert.Equal(2, ex.Context.Parser.Row);
Assert.Equal(1, ex.Context.Reader.CurrentIndex);
}
}
}
[Fact]
public void Test()
{
var config = new CsvConfiguration(CultureInfo.InvariantCulture)
{
HasHeaderRecord = false,
};
using (var stream = new MemoryStream())
using (var writer = new StreamWriter(stream))
using (var reader = new StreamReader(stream))
using (var csvReader = new CsvReader(reader, config))
{
writer.WriteLine("1,9/24/2012");
writer.Flush();
stream.Position = 0;
try
{
csvReader.Context.RegisterClassMap<Test3Map>();
var records = csvReader.GetRecords<Test3>().ToList();
}
catch (ReaderException)
{
// Should throw this exception.
}
}
}
private class Test1
{
public int IntColumn { get; set; }
public string StringColumn { get; set; }
}
private sealed class Test1Map : ClassMap<Test1>
{
public Test1Map()
{
Map(m => m.IntColumn).Index(0);
Map(m => m.StringColumn).Index(1);
}
}
private class Test2
{
public string StringColumn { get; set; }
public int IntColumn { get; set; }
}
private sealed class Test2Map : ClassMap<Test2>
{
public Test2Map()
{
Map(m => m.StringColumn);
Map(m => m.IntColumn);
}
}
private class Test3
{
public int Id { get; set; }
public DateTime CreationDate { get; set; }
public string Description { get; set; }
}
private sealed class Test3Map : ClassMap<Test3>
{
public Test3Map()
{
Map(m => m.Id).Index(0);
Map(m => m.CreationDate).Index(1);
Map(m => m.Description).Index(2);
}
}
}
}
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