Add test group annotations to riak_test

[bowrocker]

Enable tests to be tagged with a list of attributes that can be called on the riak_test command line to group or aggregate tests (#667)

Test are tagged with the following attribute:

-test_type([bucket_types, http]).

Then, instead of named tests at the command line, groups are specified:

./riak_test -c rtee -g bucket_types,http

This will result in 2 matches against the above test; any match will run the test:

Tests to run: [{http_bucket_types,
                   [{id,-1},
                    {platform,<<"local">>},
                    {version,<<"riak_ee-2.0.0beta6-11-g5a161cf-develop">>},
                    {project,<<"riak_ee">>}]},
               {bucket_types,
                   [{id,-1},
                    {platform,<<"local">>},
                    {version,<<"riak_ee-2.0.0beta6-11-g5a161cf-develop">>},
                    {project,<<"riak_ee">>}]}]

[kellymclaughlin]

I realize I did the same thing at L248, but this line goes a bit long. Can we pull out the fold funtion definition or put the fold parameters on separate lines to keep within 80 columns?

[kellymclaughlin]

Should you be able to include one or more -t options when specifying -g? Currently, that does not seem to be the case:

13:58:46:riak_test(feature/jra/test-groups *) $ ./riak_test -c riak_ee -g http -t http_security
Tests to run: [{http_bucket_types,
                   [{id,-1},
                    {platform,<<"local">>},
                    {version,<<"riak_ee-2.0.0beta8-4-g51a8e13-develop">>},
                    {project,<<"undefined">>}]}]

[seancribbs]

I also wonder if this should not (also) be metadata in GiddyUp. Then someone could write:

$ riak_test -c riak_ee -r config -g security

[seancribbs]

We could also then potentially filter the matrix to tests in specific groups.

[bowrocker]

@seancribbs sounds good -- please let me know if there is anything that would make integration easier or more sensible.

[kellymclaughlin]

+1