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-rw-r--r--Lib/test/test_importlib/import_/test___loader__.py44
-rw-r--r--Lib/test/test_importlib/test_util.py42
2 files changed, 76 insertions, 10 deletions
diff --git a/Lib/test/test_importlib/import_/test___loader__.py b/Lib/test/test_importlib/import_/test___loader__.py
new file mode 100644
index 0000000000..0edbcc5404
--- /dev/null
+++ b/Lib/test/test_importlib/import_/test___loader__.py
@@ -0,0 +1,44 @@
+import imp
+import sys
+import unittest
+
+from .. import util
+from . import util as import_util
+
+
+class LoaderMock:
+
+ def find_module(self, fullname, path=None):
+ return self
+
+ def load_module(self, fullname):
+ sys.modules[fullname] = self.module
+ return self.module
+
+
+class LoaderAttributeTests(unittest.TestCase):
+
+ def test___loader___missing(self):
+ module = imp.new_module('blah')
+ try:
+ del module.__loader__
+ except AttributeError:
+ pass
+ loader = LoaderMock()
+ loader.module = module
+ with util.uncache('blah'), util.import_state(meta_path=[loader]):
+ module = import_util.import_('blah')
+ self.assertEqual(loader, module.__loader__)
+
+ def test___loader___is_None(self):
+ module = imp.new_module('blah')
+ module.__loader__ = None
+ loader = LoaderMock()
+ loader.module = module
+ with util.uncache('blah'), util.import_state(meta_path=[loader]):
+ returned_module = import_util.import_('blah')
+ self.assertEqual(loader, module.__loader__)
+
+
+if __name__ == '__main__':
+ unittest.main() \ No newline at end of file
diff --git a/Lib/test/test_importlib/test_util.py b/Lib/test/test_importlib/test_util.py
index efc8977fb4..5f0871997b 100644
--- a/Lib/test/test_importlib/test_util.py
+++ b/Lib/test/test_importlib/test_util.py
@@ -162,6 +162,37 @@ class SetPackageTests(unittest.TestCase):
self.assertEqual(wrapped.__qualname__, fxn.__qualname__)
+class SetLoaderTests(unittest.TestCase):
+
+ """Tests importlib.util.set_loader()."""
+
+ class DummyLoader:
+ @util.set_loader
+ def load_module(self, module):
+ return self.module
+
+ def test_no_attribute(self):
+ loader = self.DummyLoader()
+ loader.module = imp.new_module('blah')
+ try:
+ del loader.module.__loader__
+ except AttributeError:
+ pass
+ self.assertEqual(loader, loader.load_module('blah').__loader__)
+
+ def test_attribute_is_None(self):
+ loader = self.DummyLoader()
+ loader.module = imp.new_module('blah')
+ loader.module.__loader__ = None
+ self.assertEqual(loader, loader.load_module('blah').__loader__)
+
+ def test_not_reset(self):
+ loader = self.DummyLoader()
+ loader.module = imp.new_module('blah')
+ loader.module.__loader__ = 42
+ self.assertEqual(42, loader.load_module('blah').__loader__)
+
+
class ResolveNameTests(unittest.TestCase):
"""Tests importlib.util.resolve_name()."""
@@ -195,14 +226,5 @@ class ResolveNameTests(unittest.TestCase):
util.resolve_name('..bacon', 'spam')
-def test_main():
- from test import support
- support.run_unittest(
- ModuleForLoaderTests,
- SetPackageTests,
- ResolveNameTests
- )
-
-
if __name__ == '__main__':
- test_main()
+ unittest.main()