CTSM-specific boiler-plate needed for most unit test modules:
(1) If cime stuff is invoked by these unit tests (directly or
indirectly, then: the first ctsm import statement near the top of
the module should be:
from ctsm import add_cime_to_path # pylint: disable=unused-import
(2) Import the ctsm-specific unit_testing module:
from ctsm import unit_testing
(3) Allow names that pylint doesn't like:
# Allow names that pylint doesn't like, because otherwise I find it hard
# to make readable unit test names
# pylint: disable=invalid-name
(4) Have a 'main' block at the bottom:
if __name__ == '__main__':
unit_testing.setup_for_tests()
unittest.main()
