[1.10.x] Refs #26772 -- Added a test for FileField reopening closed files.

        self.assertEqual(list(obj.normal.chunks(chunk_size=2)), [b"co", b"nt", b"en", b"t"])

        obj.normal.close()

    def test_filefield_reopen(self):

        obj = Storage.objects.create(normal=SimpleUploadedFile('reopen.txt', b'content'))

        with obj.normal as normal:

            normal.open()

        obj.normal.open()

        obj.normal.file.seek(0)

        obj.normal.close()

    def test_duplicate_filename(self):

        # Multiple files with the same name get _(7 random chars) appended to them.

        objs = [Storage() for i in range(2)]