[tvp] Fix description extraction, make thumbnail optional and fix tests

youtube_dl/extractor/tvp.py

@@ -19,12 +19,12 @@ class TVPIE(InfoExtractor):
 
     _TESTS = [{
         'url': 'https://vod.tvp.pl/video/czas-honoru,i-seria-odc-13,194536',
-        'md5': '8aa518c15e5cc32dfe8db400dc921fbb',
+        'md5': 'a21eb0aa862f25414430f15fdfb9e76c',
         'info_dict': {
             'id': '194536',
             'ext': 'mp4',
-            'title': 'Czas honoru, I seria – odc. 13',
+            'title': 'Czas honoru, odc. 13 – Władek',
-            'description': 'md5:381afa5bca72655fe94b05cfe82bf53d',
+            'description': 'md5:437f48b93558370b031740546b696e24',
         },
     }, {
         'url': 'http://www.tvp.pl/there-can-be-anything-so-i-shortened-it/17916176',
@@ -45,6 +45,7 @@ class TVPIE(InfoExtractor):
             'title': 'Wiadomości, 28.09.2017, 19:30',
             'description': 'Wydanie główne codziennego serwisu informacyjnego.'
         },
+        'skip': 'HTTP Error 404: Not Found',
     }, {
         'url': 'http://vod.tvp.pl/seriale/obyczajowe/na-sygnale/sezon-2-27-/odc-39/17834272',
         'only_matching': True,
@@ -75,8 +76,10 @@ class TVPIE(InfoExtractor):
         return {
             '_type': 'url_transparent',
             'url': 'tvp:' + video_id,
-            'description': self._og_search_description(webpage, default=None),
+            'description': self._og_search_description(
-            'thumbnail': self._og_search_thumbnail(webpage),
+                webpage, default=None) or self._html_search_meta(
+                'description', webpage, default=None),
+            'thumbnail': self._og_search_thumbnail(webpage, default=None),
             'ie_key': 'TVPEmbed',
         }
 
@@ -87,6 +90,14 @@ class TVPEmbedIE(InfoExtractor):
     _VALID_URL = r'(?:tvp:|https?://[^/]+\.tvp\.(?:pl|info)/sess/tvplayer\.php\?.*?object_id=)(?P<id>\d+)'
 
     _TESTS = [{
+        'url': 'tvp:194536',
+        'md5': 'a21eb0aa862f25414430f15fdfb9e76c',
+        'info_dict': {
+            'id': '194536',
+            'ext': 'mp4',
+            'title': 'Czas honoru, odc. 13 – Władek',
+        },
+    }, {
         'url': 'http://www.tvp.pl/sess/tvplayer.php?object_id=22670268',
         'md5': '8c9cd59d16edabf39331f93bf8a766c7',
         'info_dict': {