NOTES


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notes on loading from modules

this pretty much all has to take place inside of the _tests iterator.


if the module is wanted
   run setup
   load tests (including submodules) and yield each test
   run teardown
else if the module is not wanted:
   * do not import the module *
   if the module is a package:
      recurse into the package looking for test modules


make suite.TestSuite
put run, call, setup, teardown, shortdescription there

make LazySuite subclass it

get rid of TestModule

do module import in loadTestsFromModuleName; if an error, pass the error
to the module suite, whose run() should re-raise the error so that import
errors are seen only when we actually try to run the tests

make ModuleSuite class with setUp, tearDown doing try_run, it gets
additional module and error keyword args

rename TestDir to DirectorySuite