def test_deep_loader(self):
        "Modules deep inside an egg can still be tested for existence"
        egg_name = '%s/test_egg.egg' % self.egg_dir
        sys.path.append(egg_name)
        egg_module = import_module('egg_module.sub1.sub2')

        # An importable child
        self.assertTrue(module_has_submodule(egg_module, 'good_module'))
        mod = import_module('egg_module.sub1.sub2.good_module')
        self.assertEqual(mod.content, 'Deep Good Module')

        # A child that exists, but will generate an import error if loaded
        self.assertTrue(module_has_submodule(egg_module, 'bad_module'))
        self.assertRaises(ImportError, import_module, 'egg_module.sub1.sub2.bad_module')

        # A child that doesn't exist
        self.assertFalse(module_has_submodule(egg_module, 'no_such_module'))
        self.assertRaises(ImportError, import_module, 'egg_module.sub1.sub2.no_such_module')
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.3/tests/regressiontests/utils/module_loading.py/EggLoader.test_deep_loader/original