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using System;

using System.Globalization;

using NUnit.Framework;

using Python.Runtime;

namespace Python.EmbeddingTest

{

public class TestInstanceWrapping

{

// regression test for https://github.com/pythonnet/pythonnet/issues/811

[Test]

public void OverloadResolution_UnknownToObject()

{

var overloaded = new Overloaded();

using (Py.GIL())

{

var o = overloaded.ToPython();

dynamic callWithSelf = PythonEngine.Eval("lambda o: o.ObjOrClass(object())");

callWithSelf(o);

Assert.That(overloaded.Value, Is.EqualTo(Overloaded.Object));

}

[Test]

public void WeakRefIsNone_AfterObjectIsGone()

{

using var makeref = Py.Import("weakref").GetAttr("ref");

var ub = new UriBuilder().ToPython();

using var weakref = makeref.Invoke(ub);

ub.Dispose();

Assert.That(weakref.Invoke().IsNone(), Is.True);

}

class Base {}

class Derived: Base { }

class Overloaded: Derived

{

public int Value { get; set; }

public void IntOrStr(int arg) => this.Value = arg;

public void IntOrStr(string arg) =>

this.Value = int.Parse(arg, NumberStyles.Integer, CultureInfo.InvariantCulture);

public const int Object = 1;

public const int ConcreteClass = 2;

public void ObjOrClass(object _) => this.Value = Object;

public void ObjOrClass(Overloaded _) => this.Value = ConcreteClass;

public const int Base = ConcreteClass + 1;

public const int Derived = Base + 1;

public void BaseOrDerived(Base _) => this.Value = Base;

public void BaseOrDerived(Derived _) => this.Value = Derived;

}