Hello,
I'll see if I can find the time to create a project from scratch.
Until then, here a the full, buildable test file :
Code:
using NSubstitute;
namespace Namespace;
public class ExtensionsTest
{
[Test]
public void Test()
{
var exception = Substitute.For<Exception>();
exception.GetBaseException().Returns(exception); //<--- Exception here
Assert.That(exception.GetBaseException(), Is.EqualTo(exception));
}
}
The full stacktrace :
Quote:NSubstitute.Exceptions.CouldNotSetReturnDueToTypeMismatchException : Can not return value of type ExceptionProxy for Exception.get_StackTrace (expected type String).
Make sure you called Returns() after calling your substitute (for example: mySub.SomeMethod().Returns(value)),
and that you are not configuring other substitutes within Returns() (for example, avoid this: mySub.SomeMethod().Returns(ConfigOtherSub())).
If you substituted for a class rather than an interface, check that the call to your substitute was on a virtual/abstract member.
Return values cannot be configured for non-virtual/non-abstract members.
Correct use:
mySub.SomeMethod().Returns(returnValue);
Potentially problematic use:
mySub.SomeMethod().Returns(ConfigOtherSub());
Instead try:
var returnValue = ConfigOtherSub();
mySub.SomeMethod().Returns(returnValue);
at NSubstitute.Core.ConfigureCall.CheckResultIsCompatibleWithCall(IReturn valueToReturn, ICallSpecification spec)
at NSubstitute.Core.ConfigureCall.SetResultForLastCall(IReturn valueToReturn, MatchArgs matchArgs, PendingSpecificationInfo pendingSpecInfo)
at NSubstitute.Core.CallRouter.LastCallShouldReturn(IReturn returnValue, MatchArgs matchArgs, PendingSpecificationInfo pendingSpecInfo)
at NSubstitute.Core.ThreadLocalContext.LastCallShouldReturn(IReturn value, MatchArgs matchArgs)
at NSubstitute.SubstituteExtensions.ConfigureReturn[T](MatchArgs matchArgs, T returnThis, T[] returnThese)
at NSubstitute.SubstituteExtensions.Returns[T](T value, T returnThis, T[] returnThese)
at Namespace.ExtensionsTest.Test() in ExtensionsTest.cs:line 12
at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
Note that we are not using StackTrace, though the exception is mentioning it.
I tried disabling/enabling RDI, restarting the VS, it is always the same exception on get_StackTrace
Context is :
* .NET 8.0
* Visual Studio 2022 17.9.2
* NCrunch 5.3.0.2
* NUnit 4.0.1
* NSubstitute 5.1.0
* Microsoft.NET.Test.Sdk 17.8.0
