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Issue #20776: Flesh out tests for importlib.machinery.PathFinder.

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This commit is contained in:
Brett Cannon 2014-05-09 13:38:11 -04:00
parent 4b8dd71d0a
commit 91795c8e34
1 changed files with 47 additions and 0 deletions
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47
Lib/test/test_importlib/import_/test_path.py
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@ -112,6 +112,53 @@ class FinderTests:
if email is not missing: if email is not missing:
sys.modules['email'] = email sys.modules['email'] = email
def test_finder_with_find_module(self):
class TestFinder:
def find_module(self, fullname):
return self.to_return
failing_finder = TestFinder()
failing_finder.to_return = None
path = 'testing path'
with util.import_state(path_importer_cache={path: failing_finder}):
self.assertIsNone(
self.machinery.PathFinder.find_spec('whatever', [path]))
success_finder = TestFinder()
success_finder.to_return = __loader__
with util.import_state(path_importer_cache={path: success_finder}):
spec = self.machinery.PathFinder.find_spec('whatever', [path])
self.assertEqual(spec.loader, __loader__)
def test_finder_with_find_loader(self):
class TestFinder:
loader = None
portions = []
def find_loader(self, fullname):
return self.loader, self.portions
path = 'testing path'
with util.import_state(path_importer_cache={path: TestFinder()}):
self.assertIsNone(
self.machinery.PathFinder.find_spec('whatever', [path]))
success_finder = TestFinder()
success_finder.loader = __loader__
with util.import_state(path_importer_cache={path: success_finder}):
spec = self.machinery.PathFinder.find_spec('whatever', [path])
self.assertEqual(spec.loader, __loader__)
def test_finder_with_find_spec(self):
class TestFinder:
spec = None
def find_spec(self, fullname, target=None):
return self.spec
path = 'testing path'
with util.import_state(path_importer_cache={path: TestFinder()}):
self.assertIsNone(
self.machinery.PathFinder.find_spec('whatever', [path]))
success_finder = TestFinder()
success_finder.spec = self.machinery.ModuleSpec('whatever', __loader__)
with util.import_state(path_importer_cache={path: success_finder}):
got = self.machinery.PathFinder.find_spec('whatever', [path])
self.assertEqual(got, success_finder.spec)
Frozen_FinderTests, Source_FinderTests = util.test_both( Frozen_FinderTests, Source_FinderTests = util.test_both(
FinderTests, importlib=importlib, machinery=machinery) FinderTests, importlib=importlib, machinery=machinery)