[daum] Add 'thumbnail' to all _TESTS

youtube_dl/extractor/daum.py

@@ -28,6 +28,7 @@ class DaumIE(InfoExtractor):
             'title': '마크 헌트 vs 안토니오 실바',
             'description': 'Mark Hunt vs Antonio Silva',
             'upload_date': '20131217',
+            'thumbnail': 're:^https?://.*\.(?:jpg|png)',
             'duration': 2117,
             'view_count': int,
             'comment_count': int,
@@ -40,6 +41,7 @@ class DaumIE(InfoExtractor):
             'title': 'md5:a100d65d09cec246d8aa9bde7de45aed',
             'description': 'md5:79794514261164ff27e36a21ad229fc5',
             'upload_date': '20150604',
+            'thumbnail': 're:^https?://.*\.(?:jpg|png)',
             'duration': 154,
             'view_count': int,
             'comment_count': int,
@@ -55,7 +57,7 @@ class DaumIE(InfoExtractor):
             'title': '01-Korean War ( Trouble on the horizon )',
             'description': '\nKorean War 01\nTrouble on the horizon\n전쟁의 먹구름',
             'upload_date': '20080223',
-            'thumbnail': 're:^https?://.*\.jpg$',
+            'thumbnail': 're:^https?://.*\.(?:jpg|png)',
             'duration': 249,
             'view_count': int,
             'comment_count': int,
@@ -122,6 +124,7 @@ class DaumClipIE(InfoExtractor):
             'title': 'DOTA 2GETHER 시즌2 6회 - 2부',
             'description': 'DOTA 2GETHER 시즌2 6회 - 2부',
             'upload_date': '20130831',
+            'thumbnail': 're:^https?://.*\.(?:jpg|png)',
             'duration': 3868,
             'view_count': int,
         },