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using CsvHelper.Configuration;
using System.Collections;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using Xunit;
namespace CsvHelper.Tests.Writing
{
public class WriteNullTests
{
[Fact]
public void WriteRecordsEnumerableGeneric_RecordIsNull_WritesEmptyRecord()
{
var records = new List<Foo>
{
new Foo { Id = 1, Name = "one"},
null,
new Foo { Id = 2, Name = "two" },
};
var config = new CsvConfiguration(CultureInfo.InvariantCulture);
using (var writer = new StringWriter())
using (var csv = new CsvWriter(writer, config))
{
csv.WriteRecords(records);
csv.Flush();
var expected = new TestStringBuilder(config.NewLine);
expected.AppendLine("Id,Name");
expected.AppendLine("1,one");
expected.AppendLine(",");
expected.AppendLine("2,two");
Assert.Equal(expected, writer.ToString());
}
}
[Fact]
public void WriteRecordsEnumerable_RecordIsNull_WritesEmptyRecord()
{
IEnumerable records = new List<Foo>
{
new Foo { Id = 1, Name = "one"},
null,
new Foo { Id = 2, Name = "two" },
};
var config = new CsvConfiguration(CultureInfo.InvariantCulture);
using (var writer = new StringWriter())
using (var csv = new CsvWriter(writer, config))
{
csv.WriteRecords(records);
csv.Flush();
var expected = new TestStringBuilder(config.NewLine);
expected.AppendLine("Id,Name");
expected.AppendLine("1,one");
expected.AppendLine("");
expected.AppendLine("2,two");
Assert.Equal(expected, writer.ToString());
}
}
[Fact]
public void WriteRecord_RecordIsNull_WritesEmptyRecord()
{
var config = new CsvConfiguration(CultureInfo.InvariantCulture);
using (var writer = new StringWriter())
using (var csv = new CsvWriter(writer, config))
{
csv.WriteRecord((Foo)null);
csv.Flush();
Assert.Equal(",", writer.ToString());
}
}
private class Foo
{
public int Id { get; set; }
public string Name { get; set; }
}
}
}
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