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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 Xunit;
using System.Globalization;
namespace CsvHelper.Tests.AutoMapping
{
public class CircularReferenceTests
{
[Fact]
public void SelfCircularDependencyTest()
{
var config = new CsvHelper.Configuration.CsvConfiguration(CultureInfo.InvariantCulture);
var context = new CsvContext(config);
var map = context.AutoMap<SelfCircularA>();
}
[Fact]
public void CircularDependencyTest()
{
var config = new CsvHelper.Configuration.CsvConfiguration(CultureInfo.InvariantCulture);
var context = new CsvContext(config);
var map = context.AutoMap<ACircular>();
Assert.NotNull(map);
Assert.Single(map.MemberMaps);
Assert.Single(map.ReferenceMaps);
Assert.Single(map.ReferenceMaps[0].Data.Mapping.MemberMaps);
Assert.Empty(map.ReferenceMaps[0].Data.Mapping.ReferenceMaps);
}
[Fact]
public void CircularDependencyWithMultiplePropertiesTest()
{
var config = new CsvHelper.Configuration.CsvConfiguration(CultureInfo.InvariantCulture);
var context = new CsvContext(config);
var map = context.AutoMap<A>();
Assert.Single(map.MemberMaps);
Assert.Equal(3, map.ReferenceMaps.Count);
}
private class SelfCircularA
{
public SelfCircularB Circular { get; set; }
}
private class SelfCircularB
{
public SelfCircularB Self { get; set; }
public SelfCircularC C { get; set; }
}
private class SelfCircularC
{
public string Id { get; set; }
}
private class ACircular
{
public string Id { get; set; }
public BCircular B { get; set; }
}
private class BCircular
{
public string Id { get; set; }
public ACircular A { get; set; }
}
private class A
{
public string Id { get; set; }
public B B1 { get; set; }
public B B2 { get; set; }
public B B3 { get; set; }
}
private class B
{
public string Id { get; set; }
public C C { get; set; }
}
private class C
{
public string Id { get; set; }
}
}
}
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