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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.Globalization;
using System.IO;
using System.Linq;
using System.Text;
namespace CsvHelper.Tests
{
public class HeaderValidationTests
{
[Fact]
public void ValidateHeader_ValidHeaders_NoException()
{
using (var csv = new CsvReader(new StringReader("Id,Name"), CultureInfo.InvariantCulture))
{
csv.Read();
csv.ReadHeader();
csv.ValidateHeader<Test>();
}
}
[Fact]
public void ValidateHeader_PropertiesDontMatch_ThrowsHeaderValidationException()
{
using (var csv = new CsvReader(new StringReader("bad data"), CultureInfo.InvariantCulture))
{
csv.Read();
csv.ReadHeader();
try
{
csv.ValidateHeader<Test>();
throw new XUnitException();
}
catch (HeaderValidationException ex)
{
Assert.Equal(2, ex.InvalidHeaders.Length);
}
}
}
[Fact]
public void ValidateHeader_ReferencePropertiesDontMatch_ThrowsHeaderValidationException()
{
using (var csv = new CsvReader(new StringReader("bad data"), CultureInfo.InvariantCulture))
{
csv.Read();
csv.ReadHeader();
try
{
csv.ValidateHeader<HasReference>();
throw new XUnitException();
}
catch (HeaderValidationException ex)
{
Assert.Equal(2, ex.InvalidHeaders.Length);
}
}
}
[Fact]
public void ValidateHeader_ConstructorParametersDontMatch_ThrowsHeaderValidationException()
{
using (var csv = new CsvReader(new StringReader("bad data"), CultureInfo.InvariantCulture))
{
csv.Read();
csv.ReadHeader();
try
{
csv.ValidateHeader<HasConstructor>();
throw new XUnitException();
}
catch (HeaderValidationException ex)
{
Assert.Equal(2, ex.InvalidHeaders.Length);
}
}
}
[Fact]
public void GetRecord_PropertiesDontMatch_ThrowsHeaderValidationException()
{
using (var csv = new CsvReader(new StringReader("bad data"), CultureInfo.InvariantCulture))
{
csv.Read();
try
{
csv.GetRecord(typeof(Test));
throw new XUnitException();
}
catch (HeaderValidationException ex)
{
Assert.Equal(2, ex.InvalidHeaders.Length);
}
}
}
[Fact]
public void GetRecordGeneric_PropertiesDontMatch_ThrowsHeaderValidationException()
{
using (var csv = new CsvReader(new StringReader("bad data"), CultureInfo.InvariantCulture))
{
csv.Read();
try
{
csv.GetRecord<Test>();
throw new XUnitException();
}
catch (HeaderValidationException ex)
{
Assert.Equal(2, ex.InvalidHeaders.Length);
}
}
}
[Fact]
public void GetRecords_PropertiesDontMatch_ThrowsHeaderValidationException()
{
using (var csv = new CsvReader(new StringReader("bad data"), CultureInfo.InvariantCulture))
{
try
{
csv.GetRecords(typeof(Test)).ToList();
throw new XUnitException();
}
catch (HeaderValidationException ex)
{
Assert.Equal(2, ex.InvalidHeaders.Length);
}
}
}
[Fact]
public void GetRecordsGeneric_PropertiesDontMatch_ThrowsHeaderValidationException()
{
using (var csv = new CsvReader(new StringReader("bad data"), CultureInfo.InvariantCulture))
{
try
{
csv.GetRecords<Test>().ToList();
throw new XUnitException();
}
catch (HeaderValidationException ex)
{
Assert.Equal(2, ex.InvalidHeaders.Length);
}
}
}
[Fact]
public void GetRecordsGeneric_PrivateSetter_NoException()
{
var data = new StringBuilder();
data.AppendLine("Number");
data.AppendLine("1");
using (var csv = new CsvReader(new StringReader(data.ToString()), CultureInfo.InvariantCulture))
{
var records = csv.GetRecords<HasPrivateSetter>().ToList();
var record = records[0];
Assert.Equal(1, record.Number);
Assert.Equal(2, record.Double);
}
}
[Fact]
public void GetRecordsGeneric_IgnoreProperty_NoException()
{
var data = new StringBuilder();
data.AppendLine("Id");
data.AppendLine("1");
using (var csv = new CsvReader(new StringReader(data.ToString()), CultureInfo.InvariantCulture))
{
csv.Context.RegisterClassMap<HasIgnoredPropertyMap>();
var records = csv.GetRecords<Test>().ToList();
var record = records[0];
Assert.Equal(1, record.Id);
Assert.Null(record.Name);
}
}
[Fact]
public void ValidateHeader_NoNamesMapped_NoException()
{
using (var csv = new CsvReader(new StringReader("Id"), CultureInfo.InvariantCulture))
{
csv.Context.RegisterClassMap<HasIndexNoNameMap>();
csv.Read();
csv.ReadHeader();
csv.ValidateHeader<Test>();
}
}
[Fact]
public void ValidateHeader_HasIndexAndName_ThrowsHeaderValidationException()
{
using (var csv = new CsvReader(new StringReader("Id"), CultureInfo.InvariantCulture))
{
csv.Context.RegisterClassMap<HasIndexAndNameMap>();
csv.Read();
csv.ReadHeader();
try
{
csv.ValidateHeader<Test>();
throw new XUnitException();
}
catch (HeaderValidationException ex)
{
Assert.Single(ex.InvalidHeaders);
Assert.Equal("Name", ex.InvalidHeaders[0].Names[0]);
}
}
}
private class Test
{
public int Id { get; set; }
public string Name { get; set; }
}
private class HasReference
{
public Test Reference { get; set; }
}
private class HasConstructor
{
public int Id { get; private set; }
public string Name { get; private set; }
public HasConstructor(int Id, string Name)
{
this.Id = Id;
this.Name = Name;
}
}
private class HasPrivateSetter
{
public int Number { get; set; }
public int Double => Number * 2;
}
private sealed class HasIgnoredPropertyMap : ClassMap<Test>
{
public HasIgnoredPropertyMap()
{
AutoMap(CultureInfo.InvariantCulture);
Map(m => m.Name).Ignore();
}
}
private sealed class HasIndexNoNameMap : ClassMap<Test>
{
public HasIndexNoNameMap()
{
Map(m => m.Id).Index(0);
Map(m => m.Name).Index(1);
}
}
private sealed class HasIndexAndNameMap : ClassMap<Test>
{
public HasIndexAndNameMap()
{
Map(m => m.Id).Index(0).Name("Id");
Map(m => m.Name).Index(1).Name("Name");
}
}
}
}
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