[gfycat] Updated tests.

youtube_dl/extractor/gfycat.py

@@ -8,7 +8,8 @@ from .common import InfoExtractor
 
 class GfycatIE(InfoExtractor):
     _VALID_URL = r'https?://(?:www\.)?gfycat\.com/(?P<id>[^/?#]+)'
-    _TESTS = [{
+    _TESTS = [
+        {
             'url': 'http://gfycat.com/DeadlyDecisiveGermanpinscher',
             'info_dict': {
                 'id':          'DeadlyDecisiveGermanpinscher',
@@ -23,16 +24,23 @@ class GfycatIE(InfoExtractor):
                 'title':       'PleasingHilariousKusimanse',
                 'ext':         'webm',
                 'upload_date': '20150412'
-        }
+            },
+            'params': {
+                'format': 'webm',
+            },
         },{
             'url': 'http://gfycat.com/requiredunkemptbuzzard',
             'info_dict': {
                 'id':          'requiredunkemptbuzzard',
                 'title':       'Headshot!',
                 'ext':         'gif',
-            'upload_date': '20150130'
-        }
-    }]
+                'upload_date': '20150129'
+            },
+            'params': {
+                'format': 'gif',
+            },
+        },
+    ]
 
     def _real_extract(self, url):
         video_id = self._match_id(url)