[pandora.tv] Fix upload_date extraction (closes #12846)

ChangeLog

+version <unreleased>
+
+Extractors
+* [pandora.tv] Fix upload_date extraction (#12846)
+
+
 version 2017.06.18
 
 Core

youtube_dl/extractor/pandoratv.py

@@ -19,7 +19,7 @@ class PandoraTVIE(InfoExtractor):
     IE_NAME = 'pandora.tv'
     IE_DESC = '판도라TV'
     _VALID_URL = r'https?://(?:.+?\.)?channel\.pandora\.tv/channel/video\.ptv\?'
-    _TEST = {
+    _TESTS = [{
         'url': 'http://jp.channel.pandora.tv/channel/video.ptv?c1=&prgid=53294230&ch_userid=mikakim&ref=main&lot=cate_01_2',
         'info_dict': {
             'id': '53294230',
@@ -34,7 +34,26 @@ class PandoraTVIE(InfoExtractor):
             'view_count': int,
             'like_count': int,
         }
-    }
+    }, {
+        'url': 'http://channel.pandora.tv/channel/video.ptv?ch_userid=gogoucc&prgid=54721744',
+        'info_dict': {
+            'id': '54721744',
+            'ext': 'flv',
+            'title': '[HD] JAPAN COUNTDOWN 170423',
+            'description': '[HD] JAPAN COUNTDOWN 170423',
+            'thumbnail': r're:^https?://.*\.jpg$',
+            'duration': 1704.9,
+            'upload_date': '20170423',
+            'uploader': 'GOGO_UCC',
+            'uploader_id': 'gogoucc',
+            'view_count': int,
+            'like_count': int,
+        },
+        'params': {
+            # Test metadata only
+            'skip_download': True,
+        },
+    }]
 
     def _real_extract(self, url):
         qs = compat_urlparse.parse_qs(compat_urlparse.urlparse(url).query)
@@ -86,7 +105,7 @@ class PandoraTVIE(InfoExtractor):
             'description': info.get('body'),
             'thumbnail': info.get('thumbnail') or info.get('poster'),
             'duration': float_or_none(info.get('runtime'), 1000) or parse_duration(info.get('time')),
-            'upload_date': info['fid'][:8] if isinstance(info.get('fid'), compat_str) else None,
+            'upload_date': info['fid'].split('/')[-1][:8] if isinstance(info.get('fid'), compat_str) else None,
             'uploader': info.get('nickname'),
             'uploader_id': info.get('upload_userid'),
             'view_count': str_to_int(info.get('hit')),