Using AssertThrows in C++/CLI

[t2n]

Hello,

are there any examples how to use Assert.Throws methods in C++/CLI. Especially for the case when a function with parameters throws an exception. Thanks in advance.

Best regards,

Tommi K.

[Michael]

Don't let the C++/CLI thing fool you: CLI is the C++-y CLI syntax-y issues, it's nothing more than a bridge into .NET.

 

So the same exceptions you have access to in .NET (i.e. C#, NUnit, etc) are there for NUnit C# test code.

 

HTH

 

Best regards,

 

Michael

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[Michael Powell]

Don't let the C++/CLI thing fool you: CLI is the C++-y CLI syntax-y issues, it's nothing more than a bridge into .NET.

So the same exceptions you have access to in .NET (i.e. C#, NUnit, etc) are there for NUnit C# test code.

 HTH

 Best regards,

 Michael

[Charlie Poole]

Hi Tommi,

Here's a super-simple example to get you started...

[Test]
void ThrowsTests()
{
Assert::Throws(System::ArgumentException::typeid, gcnew
TestDelegate(ThrowsArgumentException));
}

static void ThrowsArgumentException()
{
throw gcnew System::ArgumentException();
}

I've been away from C++ for a while but AFAIK there is no anonymous
delegate or .NET lambda available. If I'm wrong, somebody else please
jump in here!

Charlie

[Michael]

Yessir, this is *one* way to do it. When I've worked with C++/CLI, I like to get away from C++ as fast as possible, at least for reason(s) Charlie mentioned: like lambdas. While you *can* get into some trouble with the C++ language more (differently) than with C#, it's pretty hard to get the CLI *that* wrong that you can't make the leap to test in C#. One thing, you *can* get to IEnumerable extension methods the long way round, but it's much nicer to test at the C# level. There are libraries that help with this, but again, I recommend testing in C# and avoid all that. Anyway, that's my two cent recommendation.

[Tommi Kaksonen]

Hi Charlie and Michael,

thanks for the responses, I tried to implement it the hard way, here is how I should do it:

[Test]

void Test()

{

// At first I thought implementing test logic here and passing

// result object as a parameter for the ThrowsArgumentException

Assert::Throws(System::ArgumentException::typeid, 

gcnew TestDelegate(ThrowsArgumentException));

}

static void ThrowsArgumentException()

{

// The test logic should be implemented here

throw gcnew System::ArgumentException();

}

-Tommi

2012/9/27 Michael <mwpow...@gmail.com>

To view this discussion on the web visit https://groups.google.com/d/msg/nunit-discuss/-/Enb3g8URqBYJ.

[Charlie Poole]

Exactly!