5947     FILESIZE = (10 * 1024 * 1024)  # 10 MiB  variable in SendfileUsingSendTest
5965             for csize in chunks(cls.FILESIZE, cls.BUFSIZE):
5969             assert len(cls.FILEDATA) == cls.FILESIZE
6004             self.assertEqual(sent, self.FILESIZE)
6005             self.assertEqual(file.tell(), self.FILESIZE)
6010         self.assertEqual(len(data), self.FILESIZE)
6020             self.assertEqual(sent, self.FILESIZE)
6021             self.assertEqual(file.tell(), self.FILESIZE)
6028         self.assertEqual(len(data), self.FILESIZE)
6058             self.assertEqual(sent, self.FILESIZE - 5000)
6059             self.assertEqual(file.tell(), self.FILESIZE)
6064         self.assertEqual(len(data), self.FILESIZE - 5000)
6154             self.assertEqual(sent, self.FILESIZE)
6159         self.assertEqual(len(data), self.FILESIZE)