Lib/test/test_idle.py

# Skip test if _tkinter or _thread wasn't built or idlelib was deleted.
from test.test_support import import_module
import_module('Tkinter')
import_module('threading')  # imported by PyShell, imports _thread
idletest = import_module('idlelib.idle_test')

# Without test_main present, regrtest.runtest_inner (line1219) calls
# unittest.TestLoader().loadTestsFromModule(this_module) which calls
# load_tests() if it finds it. (Unittest.main does the same.)
load_tests = idletest.load_tests

if __name__ == '__main__':
    # Until unittest supports resources, we emulate regrtest's -ugui
    # so loaded tests run the same as if textually present here.
    # If any Idle test ever needs another resource, add it to the list.
    from test import support
    support.use_resources = ['gui']  # use_resources is initially None
    import unittest
    unittest.main(verbosity=2, exit=False)