Re: [boost] Is there interest in unit testing both passing and failing BOOST_MPL_ASSERTs?

Subject: Re: [boost] Is there interest in unit testing both passing and failing BOOST_MPL_ASSERTs?
From: Marsh Ray (marsh_at_[hidden])
Date: 2011-09-14 12:53:29

On 09/14/2011 03:21 AM, Ben Robinson wrote:
> But I need a way to write a run-time unit test which
> will demonstrate that this code will fail to compile, when instantiated by
> the user of the library.

Then your run-time unit test needs to invoke the compiler, right?

>  When instantiated by the unit-test framework, the
> code instead throws an exception.

How does "the code" throw an exception if it doesn't even compile?

At best you're showing that some other, similar-looking, code will throw 
an exception.

What does that really mean though? Especially for the types of things 
MPL is used for.

- Marsh