[npo] made test only_matching and removed unnecessary regex

youtube_dl/extractor/npo.py

@@ -36,7 +36,7 @@ class NPOIE(NPOBaseIE):
                             (?:www\.)?
                             (?:
                                 npo\.nl/(?!(?:live|radio)/)(?:[^/]+/){2}|
-                                npo3\.nl/(?!/)(?:[^/]+/){2}|
+                                npo3\.nl/(?:[^/]+/){2}|
                                 ntr\.nl/(?:[^/]+/){2,}|
                                 omroepwnl\.nl/video/fragment/[^/]+__|
                                 zapp\.nl/[^/]+/[^/]+/
@@ -91,15 +91,7 @@ class NPOIE(NPOBaseIE):
         }
     }, {
         'url': 'https://www.npo3.nl/3onderzoekt/16-09-2015/VPWON_1239870',
-        'md5': '5196e6b895a779445a610f1f4c4145e7',
-        'info_dict': {
-            'id': 'VPWON_1239870',
-            'ext': 'm4v',
-            'title': '3Onderzoekt: Krakers',
-            'description': 'md5:0f79d45e282659ba4be99b125196b6af',
-            'upload_date': '20150916',
-            'duration': 1514,
-        },
+        'only_matching': True,
     }, {
         # non asf in streams
         'url': 'http://www.npo.nl/hoe-gaat-europa-verder-na-parijs/10-01-2015/WO_NOS_762771',