svtplay-dl/lib/svtplay_dl/tests/hls.py

#!/usr/bin/python
# ex:ts=4:sw=4:sts=4:et
# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-

# The unittest framwork doesn't play nice with pylint:
#   pylint: disable-msg=C0103

# We're a test, we go where ever we want (within reason, of course):
#   pylint: disable-msg=protected-access

from __future__ import absolute_import
import unittest
import svtplay_dl.fetcher.hls as hls
from svtplay_dl.fetcher.hls import M3U8

# Example HLS playlist, source:
# loosly inspired by
# https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_4x3/bipbop_4x3_variant.m3u8
M3U_EXAMPLE = '''#EXTM3U


#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=232370,CODECS="mp4a.40.2, avc1.4d4015"
something1/else.m3u8

#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=649879,CODECS="mp4a.40.2, avc1.4d401e"
something2/else.m3u8

#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=991714,CODECS="mp4a.40.2, avc1.4d401e"
something3/else.m3u8

#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=1927833,CODECS="mp4a.40.2, avc1.4d401f"
something4/else.m3u8

#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=41457,CODECS="mp4a.40.2"
something0/else.m3u8
'''


class HlsTest(unittest.TestCase):
    def test_get_full_url_1(self):
        for test in [
            # full http:// url as media segment in playlist
            {
                'srcurl': 'INVALID',
                'segment': 'http://example.com/',
                'expected': 'http://example.com/'
            },
            # full https:// url as media segment in playlist
            {
                'srcurl': 'INVALID',
                'segment': 'https://example.com/',
                'expected': 'https://example.com/'
            },
            # filename as media segment in playlist (http)
            {
                'srcurl': 'http://example.com/',
                'segment': 'foo.ts',
                'expected': 'http://example.com/foo.ts'
            },
            # filename as media segment in playlist (https)
            {
                'srcurl': 'https://example.com/',
                'segment': 'foo.ts',
                'expected': 'https://example.com/foo.ts'
            },
            # replacing srcurl file
            {
                'srcurl': 'http://example.com/bar',
                'segment': 'foo.ts',
                'expected': 'http://example.com/foo.ts'
            },
            # with query parameters
            {
                'srcurl': 'http://example.com/bar?baz=qux',
                'segment': 'foo.ts',
                'expected': 'http://example.com/foo.ts'
            },
        ]:
            self.assertEqual(
                hls._get_full_url(test['segment'], test['srcurl']),
                test['expected'])

    def test_parse_m3u8(self):
        self.maxDiff = None
        for test in [
            # full http:// url as media segment in playlist
            {
                'playlist': M3U_EXAMPLE,
                'expected': [
                    {"PROGRAM-ID": "1", "BANDWIDTH": "232370", "TAG": "EXT-X-STREAM-INF",
                     "URI": "something1/else.m3u8", "CODECS": "mp4a.40.2, avc1.4d4015"},
                    {"PROGRAM-ID": "1", "BANDWIDTH": "649879", "TAG": "EXT-X-STREAM-INF",
                     "URI": "something2/else.m3u8", "CODECS": "mp4a.40.2, avc1.4d401e"},
                    {"PROGRAM-ID": "1", "BANDWIDTH": "991714", "TAG": "EXT-X-STREAM-INF",
                     "URI": "something3/else.m3u8", "CODECS": "mp4a.40.2, avc1.4d401e"},
                    {"PROGRAM-ID": "1", "BANDWIDTH": "1927833", "TAG": "EXT-X-STREAM-INF",
                     "URI": "something4/else.m3u8", "CODECS": "mp4a.40.2, avc1.4d401f"},
                    {"PROGRAM-ID": "1", "BANDWIDTH": "41457", "TAG": "EXT-X-STREAM-INF",
                     "URI": "something0/else.m3u8", "CODECS": "mp4a.40.2"}
                ]
            }
            # More examples can be found on "https://developer.apple.com/streaming/examples/"
        ]:
            self.assertEqual(
                M3U8(test['playlist']).master_playlist,
                test['expected']
            )