class AcademicEarthCourseIE(InfoExtractor):
_VALID_URL = r'^https?://(?:www\.)?academicearth\.org/playlists/(?P<id>[^?#/]+)'
IE_NAME = 'AcademicEarth:Course'
+ _TEST = {
+ 'url': 'http://academicearth.org/playlists/laws-of-nature/',
+ 'info_dict': {
+ 'id': 'laws-of-nature',
+ 'title': 'Laws of Nature',
+ 'description': 'Introduce yourself to the laws of nature with these free online college lectures from Yale, Harvard, and MIT.',
+ },
+ 'playlist_count': 4,
+ }
def _real_extract(self, url):
m = re.match(self._VALID_URL, url)