[Boost-users] include suite name in error report [Was: naming a test]

29 May 2014

      * Richard  [2014-05-28 20:47+0000]
...
Eric Prud'hommeaux  spake the secret code
<20140528082105.GB29665@w3.org> thusly:
...
* Richard  [2014-05-27 23:20+0000]
...
Did you really mean to pass in 1 as the number of characters?
Yes, but just because my original attached example had trivial names
constructed by crossing the chars in argv[1] and argv[2], e.g.
 abc 12 -> a1 b1 c1 a2 b2 c2.
oops, should have written that as a/1 b/1 c/1 a/2 b/2 c/2, which gives the highly informative names "1" and "2" as test case names.

This brings up a feature request (or maybe I just didn't find it) which would be that the error reports look like:
  filename(num): error in test "a/1"
Currently, it only includes the test name ("1" in this case) but I think the suite hierarcy would be very helpful for folks who see an error and need to frob up a --run_test=a/1 to run it again in a debugger.
...
In this case the number of characters in the test names are 2 :-)
...
That makes sense. I wonder why the macros invoke make_test_cast, which
then invokes the constructor:
from boost/test/unit_test_suite_impl.hpp:252:
 inline test_case*
 make_test_case( callback0<> const& test_func, const_string tc_name )
 {
     return new test_case( ut_detail::normalize_test_case_name( tc_name
), test_func );
 }
, maybe some mechanical constraints on invoking constructors from
macros?
No, it is just so that they can call normalize_test_case_name which
strips the leading '&' from any name, so if you did
BOOST_TEST_CASE(&fn), the test case name would be 'fn', not '&fn'.
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