-----Original Message----- From: Boost-users [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Renaud Lepère Sent: 10 January 2015 13:10 To: boost-users@lists.boost.org Subject: [Boost-users] unit test BOOST_CHECK_CLOSE absolute
I am doing unit tests using boost utf but I have sometimes problems with BOOST_CHECK_SMALL because it checks relative value.
For example, I am comparing coordinates in 2d spaces and the relative value is not important, the meaningfull value is the absolute difference between coordinates.
I have seen that I can do a BOOST_CHECK_SMALL(fabs(x - expected_x), 1e-3);
but in this can I don't have a good message when the test fails (it does not show the value of x and the expected_x).
In fact I would like to have something like BOOST_CHECK_CLOSE_ABSOLUTE ? Is there something equivalent or how can I do something like this ?
FWIW I've also wanted the *values* in a message (rather than just a test fail). (But that's separate from the relative v absolute distinction). Paul