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Fixed #13469 -- Cleaned up the test case from r13085, and added some cache cleanup that matters for Python 2.3. Thanks to Karen and Alex for their help. 

git-svn-id: http://code.djangoproject.com/svn/django/trunk@13095 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Russell Keith-Magee 2010-05-04 14:48:43 +00:00
parent 5211f48ae3
commit 41ccfa15d7
1 changed files with 17 additions and 42 deletions
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59
tests/regressiontests/utils/module_loading.py
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@ -31,6 +31,15 @@ class EggLoader(TestCase):
def tearDown(self):
sys.path = self.old_path
sys.path_importer_cache.clear()
sys.modules.pop('egg_module.sub1.sub2.bad_module', None)
sys.modules.pop('egg_module.sub1.sub2.good_module', None)
sys.modules.pop('egg_module.sub1.sub2', None)
sys.modules.pop('egg_module.sub1', None)
sys.modules.pop('egg_module.bad_module', None)
sys.modules.pop('egg_module.good_module', None)
sys.modules.pop('egg_module', None)
def test_shallow_loader(self):
"Module existence can be tested inside eggs"
@ -89,51 +98,17 @@ class TestLoader(object):
mod.__loader__ = self
return mod
class CustomLoader(TestCase):
class CustomLoader(EggLoader):
"""The Custom Loader test is exactly the same as the EggLoader, but
it uses a custom defined Loader and Finder that is intentionally
split into two classes. Although the EggLoader combines both functions
into one class, this isn't required.
"""
def setUp(self):
self.egg_dir = '%s/eggs' % os.path.dirname(__file__)
self.old_path = sys.path
super(CustomLoader, self).setUp()
sys.path_hooks.insert(0, TestFinder)
sys.path_importer_cache.clear()
def tearDown(self):
sys.path = self.old_path
super(CustomLoader, self).tearDown()
sys.path_hooks.pop(0)
def test_shallow_loader(self):
"Module existence can be tested with a custom loader"
egg_name = '%s/test_egg.egg' % self.egg_dir
sys.path.append(egg_name)
egg_module = import_module('egg_module')
# An importable child
self.assertTrue(module_has_submodule(egg_module, 'good_module'))
mod = import_module('egg_module.good_module')
self.assertEqual(mod.content, '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.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.no_such_module')
def test_deep_loader(self):
"Modules existence can be tested deep inside a custom loader"
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')