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-rw-r--r--Lib/test/test_importlib/source/test_finder.py35
1 files changed, 35 insertions, 0 deletions
diff --git a/Lib/test/test_importlib/source/test_finder.py b/Lib/test/test_importlib/source/test_finder.py
index 8bc16a5..8e49868 100644
--- a/Lib/test/test_importlib/source/test_finder.py
+++ b/Lib/test/test_importlib/source/test_finder.py
@@ -6,6 +6,9 @@ import errno
import imp
import os
import py_compile
+import stat
+import sys
+import tempfile
from test.support import make_legacy_pyc
import unittest
import warnings
@@ -147,6 +150,38 @@ class FinderTests(abc.FinderTests):
self.assertIsNotNone(finder.find_module(mod))
self.assertIsNone(finder.find_module(mod))
+ @unittest.skipUnless(sys.platform != 'win32',
+ 'os.chmod() does not support the needed arguments under Windows')
+ def test_no_read_directory(self):
+ # Issue #16730
+ tempdir = tempfile.TemporaryDirectory()
+ original_mode = os.stat(tempdir.name).st_mode
+ def cleanup(tempdir):
+ """Cleanup function for the temporary directory.
+
+ Since we muck with the permissions, we want to set them back to
+ their original values to make sure the directory can be properly
+ cleaned up.
+
+ """
+ os.chmod(tempdir.name, original_mode)
+ # If this is not explicitly called then the __del__ method is used,
+ # but since already mucking around might as well explicitly clean
+ # up.
+ tempdir.__exit__(None, None, None)
+ self.addCleanup(cleanup, tempdir)
+ os.chmod(tempdir.name, stat.S_IWUSR | stat.S_IXUSR)
+ finder = self.get_finder(tempdir.name)
+ self.assertEqual((None, []), finder.find_loader('doesnotexist'))
+
+ def test_ignore_file(self):
+ # If a directory got changed to a file from underneath us, then don't
+ # worry about looking for submodules.
+ with tempfile.NamedTemporaryFile() as file_obj:
+ finder = self.get_finder(file_obj.name)
+ self.assertEqual((None, []), finder.find_loader('doesnotexist'))
+
+
def test_main():
from test.support import run_unittest
run_unittest(FinderTests)