test_tz.py 文件源码

def testIsStd(self):
        # NEW_YORK tzfile contains this isstd information:
        isstd_expected = (0, 0, 0, 1)
        tzc = tz.tzfile(BytesIO(base64.b64decode(NEW_YORK)))
        # gather the actual information as parsed by the tzfile class
        isstd = []
        for ttinfo in tzc._ttinfo_list:
            # ttinfo objects contain boolean values
            isstd.append(int(ttinfo.isstd))
        # ttinfo list may contain more entries than isstd file content
        isstd = tuple(isstd[:len(isstd_expected)])
        self.assertEqual(
            isstd_expected, isstd,
            "isstd UTC/local indicators parsed: %s != tzfile contents: %s"
            % (isstd, isstd_expected))