Things that a test can be annotated with:

* XFAIL(cond): for tests that are known to be buggy.
* FLAKY(cond): for tests that have nondeterministic bugs that have not been hunted down.
* SKIP(cond): for tests not applicable to the current platform, that cannot be fixed by installing or configuring dependencies.
* MISSING(cond): for tests that can't run because of uninstalled or unconfigured dependencies.
* WIP: for tests you are implementing
* TIME(cpumin, cpumax, realmax): min/max computation expected for a test. Also real time added in case you sleep or something.