diff options
Diffstat (limited to 'Lib/test/test_importlib/import_/test_path.py')
| -rw-r--r-- | Lib/test/test_importlib/import_/test_path.py | 76 |
1 files changed, 50 insertions, 26 deletions
diff --git a/Lib/test/test_importlib/import_/test_path.py b/Lib/test/test_importlib/import_/test_path.py index d82b7f6..1274f8c 100644 --- a/Lib/test/test_importlib/import_/test_path.py +++ b/Lib/test/test_importlib/import_/test_path.py @@ -1,8 +1,9 @@ -from importlib import _bootstrap -from importlib import machinery -from importlib import import_module from .. import util from . import util as import_util + +importlib = util.import_importlib('importlib') +machinery = util.import_importlib('importlib.machinery') + import os import sys from types import ModuleType @@ -11,25 +12,25 @@ import warnings import zipimport -class FinderTests(unittest.TestCase): +class FinderTests: """Tests for PathFinder.""" def test_failure(self): - # Test None returned upon not finding a suitable finder. + # Test None returned upon not finding a suitable loader. module = '<test module>' with util.import_state(): - self.assertIsNone(machinery.PathFinder.find_module(module)) + self.assertIsNone(self.machinery.PathFinder.find_module(module)) def test_sys_path(self): # Test that sys.path is used when 'path' is None. # Implicitly tests that sys.path_importer_cache is used. module = '<test module>' path = '<test path>' - importer = util.mock_modules(module) + importer = util.mock_spec(module) with util.import_state(path_importer_cache={path: importer}, path=[path]): - loader = machinery.PathFinder.find_module(module) + loader = self.machinery.PathFinder.find_module(module) self.assertIs(loader, importer) def test_path(self): @@ -37,29 +38,29 @@ class FinderTests(unittest.TestCase): # Implicitly tests that sys.path_importer_cache is used. module = '<test module>' path = '<test path>' - importer = util.mock_modules(module) + importer = util.mock_spec(module) with util.import_state(path_importer_cache={path: importer}): - loader = machinery.PathFinder.find_module(module, [path]) + loader = self.machinery.PathFinder.find_module(module, [path]) self.assertIs(loader, importer) def test_empty_list(self): # An empty list should not count as asking for sys.path. module = 'module' path = '<test path>' - importer = util.mock_modules(module) + importer = util.mock_spec(module) with util.import_state(path_importer_cache={path: importer}, path=[path]): - self.assertIsNone(machinery.PathFinder.find_module('module', [])) + self.assertIsNone(self.machinery.PathFinder.find_module('module', [])) def test_path_hooks(self): # Test that sys.path_hooks is used. # Test that sys.path_importer_cache is set. module = '<test module>' path = '<test path>' - importer = util.mock_modules(module) + importer = util.mock_spec(module) hook = import_util.mock_path_hook(path, importer=importer) with util.import_state(path_hooks=[hook]): - loader = machinery.PathFinder.find_module(module, [path]) + loader = self.machinery.PathFinder.find_module(module, [path]) self.assertIs(loader, importer) self.assertIn(path, sys.path_importer_cache) self.assertIs(sys.path_importer_cache[path], importer) @@ -72,7 +73,7 @@ class FinderTests(unittest.TestCase): path=[path_entry]): with warnings.catch_warnings(record=True) as w: warnings.simplefilter('always') - self.assertIsNone(machinery.PathFinder.find_module('os')) + self.assertIsNone(self.machinery.PathFinder.find_module('os')) self.assertIsNone(sys.path_importer_cache[path_entry]) self.assertEqual(len(w), 1) self.assertTrue(issubclass(w[-1].category, ImportWarning)) @@ -81,12 +82,12 @@ class FinderTests(unittest.TestCase): # The empty string should create a finder using the cwd. path = '' module = '<test module>' - importer = util.mock_modules(module) - hook = import_util.mock_path_hook(os.curdir, importer=importer) + importer = util.mock_spec(module) + hook = import_util.mock_path_hook(os.getcwd(), importer=importer) with util.import_state(path=[path], path_hooks=[hook]): - loader = machinery.PathFinder.find_module(module) + loader = self.machinery.PathFinder.find_module(module) self.assertIs(loader, importer) - self.assertIn(os.curdir, sys.path_importer_cache) + self.assertIn(os.getcwd(), sys.path_importer_cache) def test_None_on_sys_path(self): # Putting None in sys.path[0] caused an import regression from Python @@ -96,8 +97,8 @@ class FinderTests(unittest.TestCase): new_path_importer_cache = sys.path_importer_cache.copy() new_path_importer_cache.pop(None, None) new_path_hooks = [zipimport.zipimporter, - _bootstrap.FileFinder.path_hook( - *_bootstrap._get_supported_file_loaders())] + self.machinery.FileFinder.path_hook( + *self.importlib._bootstrap._get_supported_file_loaders())] missing = object() email = sys.modules.pop('email', missing) try: @@ -105,16 +106,39 @@ class FinderTests(unittest.TestCase): path=new_path, path_importer_cache=new_path_importer_cache, path_hooks=new_path_hooks): - module = import_module('email') + module = self.importlib.import_module('email') self.assertIsInstance(module, ModuleType) finally: if email is not missing: sys.modules['email'] = email +Frozen_FinderTests, Source_FinderTests = util.test_both( + FinderTests, importlib=importlib, machinery=machinery) + + +class PathEntryFinderTests: + + def test_finder_with_failing_find_module(self): + # PathEntryFinder with find_module() defined should work. + # Issue #20763. + class Finder: + path_location = 'test_finder_with_find_module' + def __init__(self, path): + if path != self.path_location: + raise ImportError + + @staticmethod + def find_module(fullname): + return None + + + with util.import_state(path=[Finder.path_location]+sys.path[:], + path_hooks=[Finder]): + self.machinery.PathFinder.find_spec('importlib') + +Frozen_PEFTests, Source_PEFTests = util.test_both( + PathEntryFinderTests, machinery=machinery) -def test_main(): - from test.support import run_unittest - run_unittest(FinderTests) if __name__ == '__main__': - test_main() + unittest.main() |