How to use the fileseq.findSequenceOnDisk function in Fileseq

("seq/foo_#_extra.exr", None),
            ("seq/foo_##.exr", None),
            ("seq/foo_@.exr", None),
            ("seq/big.#.ext", "seq/big.999-1003#.ext"),
            ("seq/big.@@@.ext", "seq/big.1000-1003@@@.ext"),
            ("seq/big.@.ext", "seq/big.1000-1003@.ext"),
            ("seq/big.#@.ext", None),
        ]

        for pattern, expected in tests:
            if expected is None:
                with self.assertRaises(FileSeqException):
                    findSequenceOnDisk(pattern, strictPadding=True)
                continue

            seq = findSequenceOnDisk(pattern, strictPadding=True)
            self.assertTrue(isinstance(seq, FileSequence))
            actual = str(seq)
            self.assertEqual(actual, expected)

("seq/foo.debug.#.exr", "seq/foo.debug.1-5#.exr"),
            ("seq/#.exr", "seq/1-3#.exr"),
            ("seq/foo_#.exr", "seq/foo_1#.exr"),
            ("seq/foo_#_extra.exr", None),
            ("seq/foo_##.exr", None),
            ("seq/foo_@.exr", None),
            ("seq/big.#.ext", "seq/big.999-1003#.ext"),
            ("seq/big.@@@.ext", "seq/big.1000-1003@@@.ext"),
            ("seq/big.@.ext", "seq/big.1000-1003@.ext"),
            ("seq/big.#@.ext", None),
        ]

        for pattern, expected in tests:
            if expected is None:
                with self.assertRaises(FileSeqException):
                    findSequenceOnDisk(pattern, strictPadding=True)
                continue

            seq = findSequenceOnDisk(pattern, strictPadding=True)
            self.assertTrue(isinstance(seq, FileSequence))
            actual = str(seq)
            self.assertEqual(actual, expected)

("mixed/seq.#.ext", "mixed/seq.-1-5#.ext"),
            ("mixed/seq.@@.ext", "mixed/seq.-1-5@@.ext"),
            ("mixed/seq.@@@@@.ext", "mixed/seq.-1-5@@@@@.ext"),
            ("mixed/seq.@.ext", "mixed/seq.-1@.ext"),
            ("mixed/seq.##.ext", None),
            ("mixed/seq.%04d.ext", "mixed/seq.-1-5#.ext"),
            ("mixed/seq.%02d.ext", "mixed/seq.-1-5@@.ext"),
            ("mixed/seq.%05d.ext", "mixed/seq.-1-5@@@@@.ext"),
            ("mixed/seq.%01d.ext", "mixed/seq.-1@.ext"),
            ("mixed/seq.%08d.ext", None),
        ]

        for pattern, expected in tests:
            if expected is None:
                with self.assertRaises(FileSeqException):
                    findSequenceOnDisk(pattern, strictPadding=True)
                continue

            seq = findSequenceOnDisk(pattern, strictPadding=True)
            self.assertTrue(isinstance(seq, FileSequence))

            actual = str(seq)
            self.assertEqual(actual, expected)

("mixed/seq.@.ext", "mixed/seq.-1@.ext"),
            ("mixed/seq.##.ext", None),
            ("mixed/seq.%04d.ext", "mixed/seq.-1-5#.ext"),
            ("mixed/seq.%02d.ext", "mixed/seq.-1-5@@.ext"),
            ("mixed/seq.%05d.ext", "mixed/seq.-1-5@@@@@.ext"),
            ("mixed/seq.%01d.ext", "mixed/seq.-1@.ext"),
            ("mixed/seq.%08d.ext", None),
        ]

        for pattern, expected in tests:
            if expected is None:
                with self.assertRaises(FileSeqException):
                    findSequenceOnDisk(pattern, strictPadding=True)
                continue

            seq = findSequenceOnDisk(pattern, strictPadding=True)
            self.assertTrue(isinstance(seq, FileSequence))

            actual = str(seq)
            self.assertEqual(actual, expected)

def testFindSequenceOnDisk(self):
        tests = [
            ("seq/bar#.exr", "seq/bar1000-1002,1004-1006#.exr"),
            ("seq/foo.#.exr", "seq/foo.1-5#.exr"),
            ("seq/foo.#.jpg", "seq/foo.1-5#.jpg"),
            ("seq/foo.0002.jpg", "seq/foo.1-5#.jpg"),
            ("seq/foo.#.exr", "seq/foo.1-5#.exr"),
            ("seq/foo.debug.#.exr", "seq/foo.debug.1-5#.exr"),
            ("seq/#.exr", "seq/1-3#.exr"),
            ("seq/bar1001.exr", "seq/bar1001.exr"),
            ("seq/foo_0001.exr", "seq/foo_0001.exr"),
        ]

        for pattern, expected in tests:
            seq = findSequenceOnDisk(pattern, strictPadding=False)
            self.assertTrue(isinstance(seq, FileSequence))
            actual = str(seq)
            self.assertEqual(actual, expected)

("seq/foo.#.exr", "seq\\foo.1-5#.exr"),
            ("seq/foo.debug.#.exr", "seq\\foo.debug.1-5#.exr"),
            ("seq/#.exr", "seq\\1-3#.exr"),
            ("seq/bar1001.exr", "seq/bar1001.exr"),
            ("seq/foo_0001.exr", "seq/foo_0001.exr"),
        ]

        import ntpath
        _path = os.path
        os.path = ntpath

        try:
            self.assertEqual(os.path.join('a', 'b'), 'a\\b')

            for pattern, expected in tests:
                seq = findSequenceOnDisk(pattern)
                self.assertTrue(isinstance(seq, FileSequence))
                actual = str(seq)
                self.assertEqual(actual, expected)

        finally:
            os.path = _path