[ubu] Fix test and modernize

youtube_dl/extractor/ubu.py

@@ -3,50 +3,51 @@ from __future__ import unicode_literals
 import re
 
 from .common import InfoExtractor
-from ..utils import int_or_none
+from ..utils import (
+    int_or_none,
+    qualities,
+)
 
 
 class UbuIE(InfoExtractor):
     _VALID_URL = r'http://(?:www\.)?ubu\.com/film/(?P<id>[\da-z_-]+)\.html'
     _TEST = {
         'url': 'http://ubu.com/film/her_noise.html',
-        'md5': '8edd46ee8aa6b265fb5ed6cf05c36bc9',
+        'md5': '138d5652618bf0f03878978db9bef1ee',
         'info_dict': {
             'id': 'her_noise',
-            'ext': 'mp4',
+            'ext': 'm4v',
             'title': 'Her Noise - The Making Of (2007)',
             'duration': 3600,
         },
     }
 
     def _real_extract(self, url):
-        mobj = re.match(self._VALID_URL, url)
-        video_id = mobj.group('id')
-
+        video_id = self._match_id(url)
         webpage = self._download_webpage(url, video_id)
 
         title = self._html_search_regex(
             r'<title>.+?Film &amp; Video: ([^<]+)</title>', webpage, 'title')
 
         duration = int_or_none(self._html_search_regex(
-            r'Duration: (\d+) minutes', webpage, 'duration', fatal=False, default=None))
-        if duration:
-            duration *= 60
+            r'Duration: (\d+) minutes', webpage, 'duration', fatal=False),
+            invscale=60)
 
         formats = []
-
         FORMAT_REGEXES = [
-            ['sq', r"'flashvars'\s*,\s*'file=([^']+)'"],
-            ['hq', r'href="(http://ubumexico\.centro\.org\.mx/video/[^"]+)"']
+            ('sq', r"'flashvars'\s*,\s*'file=([^']+)'"),
+            ('hq', r'href="(http://ubumexico\.centro\.org\.mx/video/[^"]+)"'),
         ]
-
+        preference = qualities([fid for fid, _ in FORMAT_REGEXES])
         for format_id, format_regex in FORMAT_REGEXES:
             m = re.search(format_regex, webpage)
             if m:
                 formats.append({
                     'url': m.group(1),
                     'format_id': format_id,
+                    'preference': preference(format_id),
                 })
+        self._sort_formats(formats)
 
         return {
             'id': video_id,