diff options
Diffstat (limited to 'test/test_utils.py')
| -rw-r--r-- | test/test_utils.py | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/test/test_utils.py b/test/test_utils.py index 9ff13a369..ade10a7b1 100644 --- a/test/test_utils.py +++ b/test/test_utils.py @@ -12,6 +12,7 @@ sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__)))) # Various small unit tests import io +import itertools import json import xml.etree.ElementTree @@ -108,6 +109,7 @@ from yt_dlp.utils import ( cli_bool_option, parse_codecs, iri_to_uri, + LazyList, ) from yt_dlp.compat import ( compat_chr, @@ -1525,6 +1527,47 @@ Line 1 self.assertEqual(clean_podcast_url('https://www.podtrac.com/pts/redirect.mp3/chtbl.com/track/5899E/traffic.megaphone.fm/HSW7835899191.mp3'), 'https://traffic.megaphone.fm/HSW7835899191.mp3') self.assertEqual(clean_podcast_url('https://play.podtrac.com/npr-344098539/edge1.pod.npr.org/anon.npr-podcasts/podcast/npr/waitwait/2020/10/20201003_waitwait_wwdtmpodcast201003-015621a5-f035-4eca-a9a1-7c118d90bc3c.mp3'), 'https://edge1.pod.npr.org/anon.npr-podcasts/podcast/npr/waitwait/2020/10/20201003_waitwait_wwdtmpodcast201003-015621a5-f035-4eca-a9a1-7c118d90bc3c.mp3') + def test_LazyList(self): + it = list(range(10)) + + self.assertEqual(list(LazyList(it)), it) + self.assertEqual(LazyList(it).exhaust(), it) + self.assertEqual(LazyList(it)[5], it[5]) + + self.assertEqual(LazyList(it)[::2], it[::2]) + self.assertEqual(LazyList(it)[1::2], it[1::2]) + self.assertEqual(LazyList(it)[6:2:-2], it[6:2:-2]) + self.assertEqual(LazyList(it)[::-1], it[::-1]) + + self.assertTrue(LazyList(it)) + self.assertFalse(LazyList(range(0))) + self.assertEqual(len(LazyList(it)), len(it)) + self.assertEqual(repr(LazyList(it)), repr(it)) + self.assertEqual(str(LazyList(it)), str(it)) + + self.assertEqual(list(reversed(LazyList(it))), it[::-1]) + self.assertEqual(list(reversed(LazyList(it))[1:3:7]), it[::-1][1:3:7]) + + def test_LazyList_laziness(self): + + def test(ll, idx, val, cache): + self.assertEqual(ll[idx], val) + self.assertEqual(getattr(ll, '_LazyList__cache'), list(cache)) + + ll = LazyList(range(10)) + test(ll, 0, 0, range(1)) + test(ll, 5, 5, range(6)) + test(ll, -3, 7, range(10)) + + ll = reversed(LazyList(range(10))) + test(ll, -1, 0, range(1)) + test(ll, 3, 6, range(10)) + + ll = LazyList(itertools.count()) + test(ll, 10, 10, range(11)) + reversed(ll) + test(ll, -15, 14, range(15)) + if __name__ == '__main__': unittest.main() |