Commit 0bfe322b authored by Claude Paroz's avatar Claude Paroz Committed by Tim Graham
Browse files

[1.8.x] Fixed #24826 -- Accounted for filesystem-dependent filename max length 

Thanks Raphaël Hertzog for the report and help on the patch, and Tim Graham
for the review.

Backport of 170f7115 from master
parent ae03d1ac

tests/file_storage/tests.py

+13 −1
Original line number Diff line number Diff line
@@ -435,6 +435,18 @@ class FileFieldStorageTests(TestCase): 
    def tearDown(self):

        shutil.rmtree(temp_storage_location)



    def _storage_max_filename_length(self, storage):

        """

        Query filesystem for maximum filename length (e.g. AUFS has 242).

        """

        dir_to_test = storage.location

        while not os.path.exists(dir_to_test):

            dir_to_test = os.path.dirname(dir_to_test)

        try:

            return os.pathconf(dir_to_test, 'PC_NAME_MAX')

        except Exception:

            return 255  # Should be safe on most backends



    def test_files(self):

        # Attempting to access a FileField from the class raises a descriptive

        # error
@@ -536,7 +548,7 @@ class FileFieldStorageTests(TestCase): 
    def test_extended_length_storage(self):

        # Testing FileField with max_length > 255. Most systems have filename

        # length limitation of 255. Path takes extra chars.

        filename = 251 * 'a'  # 4 chars for extension.

        filename = (self._storage_max_filename_length(temp_storage) - 4) * 'a'  # 4 chars for extension.

        obj = Storage()

        obj.extended_length.save('%s.txt' % filename, ContentFile('Same Content'))

        self.assertEqual(obj.extended_length.name, 'tests/%s.txt' % filename)