Hello Gavin,

thanks for your response.

On Mon, May 8, 2017 at 4:17 AM, Gavin Lambert via Boost-users <boost-users@lists.boost.org> wrote:

I don't know if there is a better way to do this within the confines of Boost.Test itself (perhaps making a custom macro, or extending what the macro already does in some way),

I was suspecting this, just wanted to clarify. I guess I will create my own wrappers then.

but there *is* a better way to get basic values out of unit quantities rather than using .value().

Instead of:

BOOST_CHECK_CLOSE(X(v).value(), 42.0, 0.001);


BOOST_CHECK_CLOSE(X(v) / meters, 42.0, 0.001);

(You might also need an explicit static_cast<double>.  If so, you might want to wrap this whole thing in a helper method to reduce typing.)

OK, this is a bit of surprise. This "X(v) / meters" obviously means "I want the value in meters"?
Actually I spent quite some time trying to figure that exact thing out and I just couldn't find it in the docs. I have just tried it and it works.

Great, that's at least a way to make things explicit and helps.