test_tempfile.py 文件源码

def test_text_newline_and_encoding(self):
        f = tempfile.SpooledTemporaryFile(mode='w+', max_size=10,
                                          newline='', encoding='utf-8')
        f.write("\u039B\r\n")
        f.seek(0)
        self.assertEqual(f.read(), "\u039B\r\n")
        self.assertFalse(f._rolled)
        self.assertEqual(f.mode, 'w+')
        self.assertIsNone(f.name)
        self.assertIsNone(f.newlines)
        self.assertIsNone(f.encoding)

        f.write("\u039B" * 20 + "\r\n")
        f.seek(0)
        self.assertEqual(f.read(), "\u039B\r\n" + ("\u039B" * 20) + "\r\n")
        self.assertTrue(f._rolled)
        self.assertEqual(f.mode, 'w+')
        self.assertIsNotNone(f.name)
        self.assertIsNotNone(f.newlines)
        self.assertEqual(f.encoding, 'utf-8')